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EP0848628B1 - Process using a peracid composition for decontaminating materials contaminated with toxic agents - Google Patents

Process using a peracid composition for decontaminating materials contaminated with toxic agents
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EP0848628B1
EP0848628B1EP97905197AEP97905197AEP0848628B1EP 0848628 B1EP0848628 B1EP 0848628B1EP 97905197 AEP97905197 AEP 97905197AEP 97905197 AEP97905197 AEP 97905197AEP 0848628 B1EP0848628 B1EP 0848628B1
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surfactant
acid
peracid
bromide
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EP0848628A1 (en
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Claude Lion
Claude Charvy
Gérard DELMAS
Gilbert Magnaud
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Direction General de lArmement DGA
Gouvernement de la Republique Francaise
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Gouvernement de la Republique Francaise
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Translated fromFrench

La présente invention concerne un procédé dedécontamination de matériaux souillés par des agentstoxiques, mettant en oeuvre plus particulièrement une composition à base deperacides assurant la décontamination efficace de matériauxsouillés par des agents toxiques tels que des composésorganophosphorés ou organosoufrés, sans entraíner de dégradationsnotables desdits matériauxThe present invention relates to a method ofdecontamination of materials soiled by agentstoxic, more particularly using a composition based onperacids ensuring efficient decontamination of materialscontaminated by toxic agents such as compoundsorganophosphorus or organosulfur, without causing degradationnotable of said materials

On sait que divers composés organophosphorés inhibiteursde cholinestérases, tels que des organophosphates, des amidophosphates,des organoamidophosphates, des phosphorothionates,des phosphonothionates et des phosphoroamidothionates, peuventêtre utilisés dans le domaine de l'agriculture commeinsecticides et pesticides. D'autre part, certains composésorganosoufrés sont connus comme agents vésicants et utiliséscomme agents toxiques de guerre.It is known that various organophosphate inhibitor compoundscholinesterases, such as organophosphates, amidophosphates,organoamidophosphates, phosphorothionates,phosphonothionates and phosphoroamidothionates, canbe used in agriculture asinsecticides and pesticides. On the other hand, some compoundsorganosulfur are known as blistering agents and usedas poisonous agents of war.

Parmi les composés organophosphorés les plus connusutilisés comme pesticides ou insecticides en agriculture, onpeut citer notamment le O,O-diéthyl-O-p-nitrophényl phosphate(Paraoxon) et le O,O-diéthyl-O-p-nitrophényl phosphorothioate(Parathion), tandis que le O-éthyl-S-(diisopropylaminoéthyl-2)-méthylphosphorothiolate(VX) est un agent toxique de guerrebien connu. Ces composés agissent en bloquant de manièreirréversible la transmission nerveuse, en se liant par liaisoncovalente à l'acétylcholinestérase, entraínant la mort paraccumulation d'acétylcholine dans l'organisme. Comme composéorganosoufré utilisé comme toxique de guerre, on peut aussiciter le dichloro-2,2'-diéthyl sulfure (Ypérite).Among the best known organophosphorus compoundsused as pesticides or insecticides in agriculture, wemay especially mention O, O-diethyl-O-p-nitrophenyl phosphate(Paraoxon) and O, O-diethyl-O-p-nitrophenyl phosphorothioate(Parathion), while O-ethyl-S- (diisopropylaminoethyl-2) -methylphosphorothiolate(VX) is a toxic agent of warwell known. These compounds work by blockingirreversible nerve transmission, by bindingcovalent to acetylcholinesterase, causing death byaccumulation of acetylcholine in the body. As compoundorganosulfur used as a war toxicant, we can alsocite dichloro-2,2'-diethyl sulfide (Yperite).

Il est important de pouvoir se protéger dans le casd'utilisation intentionnelle ou accidentelle de tels composés,et en particulier de pouvoir décontaminer rapidement etefficacement les matériaux au contact desquels ils ont été portés. Il est donc utile de pouvoir disposer de réactifs oude compositions susceptibles de détruire presque instantanémentde tels composés organophosphorés et organosoufrés.It is important to be able to protect yourself in the eventintentional or accidental use of such compounds,and in particular to be able to quickly decontaminate andeffectively the materials in contact with which they weredoors. It is therefore useful to have reagents orcompositions capable of destroying almost instantlysuch organophosphorus and organosulfur compounds.

L'une des difficultés rencontrées dans la pratique tientà la nécessité d'éviter dans toute la mesure du possible dedégrader les matériaux à décontaminer. Ainsi, les compositionsles plus efficaces actuellement utilisées dans la technique dedécontamination, sont des solutions de soude dans leméthylglycol avec la diéthylamine, ou d'hypochlorite decalcium, mais ces solutions sont très corrosives.One of the difficulties encountered in practice isthe need to avoid as far as possible fromdegrade the materials to be decontaminated. So the compositionsmost effective currently used in the technique ofdecontamination, are soda solutions in themethylglycol with diethylamine, or hypochloritecalcium, but these solutions are very corrosive.

De nombreux travaux ont montré que les composésnucléophiles possèdent les qualités requises pour éliminer lestoxiques de la série des organophosphorés et desorganosoufrés. C.A. Bunton et al.,J. Am. Chem. Soc.,95, 2912(1973), ont mis en évidence les propriétés de l'ion hydroxyleà cet effet; d'autres réactifs ont aussi été proposés, parmilesquels des acides hydroxamiques, des oximes, des mono- etpolyphénols, des hydrates d'aldéhyde, certaines aminés, ainsique des hypochlorites de calcium ou de sodium.Numerous studies have shown that nucleophilic compounds have the qualities required to remove toxic substances from the organophosphate and organosulfur series. CA Bunton et al.,J. Am. Chem. Soc .,95 , 2912 (1973), have demonstrated the properties of the hydroxyl ion for this purpose; other reagents have also been proposed, including hydroxamic acids, oximes, mono- and polyphenols, aldehyde hydrates, certain amines, as well as calcium or sodium hypochlorites.

On a également proposé d'utiliser des peroxyanions commel'eau oxygénée, l'hydroperoxyde de tertiobutyle, les perborateset les peracides, en raison de leurs propriétés à lafois nucléophiles et oxydantes.It has also been proposed to use peroxyanions ashydrogen peroxide, tert-butyl hydroperoxide, perboratesand peracids, due to their properties at theboth nucleophilic and oxidative.

Ces divers composés peuvent être utilisés dans descompositions contenant encore des agents tensio-actifsaméliorant le contact entre le réactif utilisé et l'agenttoxique à éliminer, afin d'accélérer la décontamination. Enparticulier, l'utilisation de tensio-actifs du type ammoniumquaternaire accélère la destruction des toxiques par unecatalyse micellaire.These various compounds can be used incompositions still containing surfactantsimproving the contact between the reagent used and the agenttoxic to eliminate, to speed up decontamination. Inin particular, the use of ammonium type surfactantsquaternary accelerates the destruction of toxins by amicellar catalysis.

Ainsi, le brevet FR-A-2.651.133 décrit des compositionsconstituées par des solutions contenant des peracideslinéaires à longue chaíne carbonée, de pH compris entre 6 et8, généralement associés à des agents tensio-actifs tels quele bromure de cétyl triméthyl ammonium, le bromure de cétyldiméthyl hydroxyéthyl-2 ammonium, le bromure de cétyl méthylbis(hydroxyéthyl-2) ammonium ou le bromure de cétyl diaza-1,4bicyclo(2.2.2) octyl ammonium. De telles compositions permettentde détruire le Paraoxon, le VX et l'Ypérite. Cependant,les peracides utilisés ne sont pas disponibles dans lecommerce et la stabilité des compositions n'est pas satisfaisante.Thus, patent FR-A-2,651,133 describes compositionsconsisting of solutions containing peracidslinear long carbon chain, pH between 6 and8, generally associated with surfactants such ascetyl trimethyl ammonium bromide, cetyl bromide2-dimethyl hydroxyethyl ammonium, cetyl methyl bromidebis (hydroxyethyl-2) ammonium or cetyl diaza-1,4-bromidebicyclo (2.2.2) octyl ammonium. Such compositions allowto destroy Paraoxon, VX and Yperite. However,the peracids used are not available in thetrade and the stability of the compositions is not satisfactory.

Le brevet FR-A-2.676.368 décrit des compositions aqueusesà base de monoperoxyphtalate de magnésium et d'agent tensio-actifdu type sel d'ammonium quaternaire, utilisables pour ladécontamination de matériaux souillés par certains agentsneurotoxiques, notamment le VX, et des vésicants tels quel'Ypérite.FR-A-2,676,368 describes aqueous compositionsbased on magnesium monoperoxyphthalate and surfactantof the quaternary ammonium salt type, usable for thedecontamination of materials soiled by certain agentsneurotoxic, including VX, and vesicants such asyperite.

La destruction de l'Ypérite et de composés voisins pardes oxydants, notamment par le monopersulfate de potassium, aété décrite par C. Lion et al.,Phosphorus, Sulfur andSilicon,79, 141-145 (1993), qui ont montré que la réactionest spécifique des composés organosoufrés.The destruction of Yperite and neighboring compounds by oxidants, in particular by potassium monopersulfate, has been described by C. Lion et al.,Phosphorus, Sulfur and Silicon,79 , 141-145 (1993), which have shown that the reaction is specific for organosulfur compounds.

Il subsiste donc un besoin de pouvoir disposer decompositions capables de détruire efficacement et rapidementles composés organophosphorés et organosoufrés toxiquesprécités, afin de décontaminer les matériaux souillés par cescomposés, sans les dégrader.There therefore remains a need to be able to have access tocompositions capable of destroying effectively and quicklytoxic organophosphorus and organosulfur compoundsabove, in order to decontaminate the materials soiled by thesecompounds, without degrading them.

La présente invention a pour objet un procédé pour la décontamination de matériaux contaminés par desagents toxiques organophosphorés ou organosoufrés, mettant en oeuvre unecomposition contenant un peracide et un agent tensio-actif, caractsé en ce que cette composition comprend

  • un peracide choisi parmi
    • un imidoperacide représenté par la formule générale (I)
      Figure 00040001
      dans laquelle n est un entier compris entre 3 et 8, etR1, identique ou différent dans chaque groupe -CHR1-, est ungroupe alkyle ou un groupe phényle; et
    • l'acide phtalimidoperpropionique et phtalimidopecaproïque.
    • un diperacide représenté par la formule générale (II)HO3C ― (CHR2)p - CO3Hdans laquelle p est un entier compris entre 2 et 10, etR2 a la même définition que R1;
    • les acides perdidécanoïque, perdinonanoïque et perdidodécanoïque, et
  • un agent tensio-actif cationique du type ammoniumquaternaire.
The subject of the present invention is a process for the decontamination of materials contaminated with toxic organophosphorus or organosulfur agents, using a composition containing a peracid and a surfactant, characterized in that this composition comprises
  • a peracid chosen from
    • an imidoperacid represented by the general formula (I)
      Figure 00040001
      in which n is an integer between 3 and 8, and R1 , identical or different in each group -CHR1 -, is an alkyl group or a phenyl group; and
    • phthalimidoperpropionic acid and phthalimidopecaproic acid.
    • a diperacid represented by the general formula (II) HO3 C - (CHR2 )p - CO3 H in which p is an integer between 2 and 10, and R2 has the same definition as R1 ;
    • perdidecanoic, perdinonanoic and perdidodecanoic acids, and
  • a cationic surfactant of the quaternary ammonium type.

Suivant une forme préférentielle de réalisation del'invention, la composition est constituée par une solutionaqueuse à pH tamponné compris entre 8 et 11, et de préférenceentre 9 et 10.According to a preferred embodiment ofthe invention, the composition consists of a solutionaqueous pH buffered between 8 and 11, and preferablybetween 9 and 10.

Dans les formules (I) et (II) ci-dessus, R1 et R2 représententde préférence un groupe alkyle de 1 à 4 atomes decarbone, et par exemple un groupe méthyle, éthyle ou n-propyle.In formulas (I) and (II) above, R1 and R2 preferably represent an alkyl group of 1 to 4 carbon atoms, and for example a methyl, ethyl or n-propyl group.

Les peracides utilisés dans l'invention sont des produitsdisponibles dans le commerce ou dont la préparation peuts'effectuer aisément par des techniques usuelles, par actiondu peroxyde d'hydrogène en milieu acide (par exemple en milieuacide sulfurique concentré à froid) sur les acidescorrespondants. Une méthode de préparation de tels peracidesest décrite par C. Lion et al.Bull. Soc. Chim. Belg.99 (2)127 (1990).The peracids used in the invention are products available commercially or the preparation of which can be carried out easily by usual techniques, by the action of hydrogen peroxide in an acid medium (for example in cold concentrated sulfuric acid medium) on the corresponding acids. A method of preparing such peracids is described by C. Lion et al.Bull. Soc. Chim . Belg.99 (2) 127 (1990).

L'agent tensio-actif cationique du type ammonium quaternaireest de préférence représenté par la formule générale(III) :

Figure 00050001
dans laquelle R1, R2 et R3, identiques ou différents,représentent un groupe alkyle ou hydroxyalkyle de 1 à 4 atomesde carbone, R4 représente un groupe alkyle, linéaire ouramifié de 11 à 18 atomes de carbone, et X représente unhalogène ou un radical hydroxyle.The cationic surfactant of the quaternary ammonium type is preferably represented by the general formula (III):
Figure 00050001
in which R1 , R2 and R3 , identical or different, represent an alkyl or hydroxyalkyl group of 1 to 4 carbon atoms, R4 represents a linear or branched alkyl group of 11 to 18 carbon atoms, and X represents a halogen or a hydroxyl radical.

Parmi les agents tensio-actifs représentés par la formulegénérale (III) ci-dessus, on utilise de préférence ceux pourlesquels R1, R2, et R3 représentent un groupe méthyle, ungroupe éthyle ou un groupe hydroxyéthyle, R4 représente ungroupe cétyle, et X est le chlore, le brome ou un radical -OH.Among the surfactants represented by the general formula (III) above, use is preferably made for which R1 , R2 and R3 represent a methyl group, an ethyl group or a hydroxyethyl group, R4 represents a cetyl group, and X is chlorine, bromine or a radical -OH.

Suivant une forme avantageuse de mise en oeuvre del'invention, l'agent tensio-actif de formule générale (III)est choisi parmi le bromure ou le chlorure de cétyl triméthylammonium, le bromure de cétyl diméthyl hydroxyéthyl-2ammonium, le bromure de cétyl méthyl bis(hydroxyéthyl-2)ammonium ou le bromure de cétyl diaza-1,4 bicyclo(2.2.2) octylammonium.According to an advantageous form of implementation ofthe invention, the surfactant of general formula (III)is chosen from bromide or cetyl trimethyl chlorideammonium, cetyl dimethyl hydroxyethyl-2 bromideammonium, cetyl methyl bis (2-hydroxyethyl) bromideammonium or cetyl diaza-1,4 bicyclo (2.2.2) octyl bromideammonium.

Ces agents tensio-actifs sont connus et, pour la pluspart, disponibles dans le commerce. Ils peuvent être préparéspar les méthodes décrites par C.A. Bunton et al. (précité) etpar L. Horner et al.,Phosphorus and Sulfur,11, 339 (1981).Par exemple, le bromure de cétyl diméthyl hydroxyéthyl-2ammonium peut être obtenu en portant à reflux une solution debromure d'hexadécyle et de diméthyléthanolamine dans unmélange d'acétonitrile et de méthanol et en recristallisantles cristaux obtenus dans le méthanol.These surfactants are known and, for the most part, commercially available. They can be prepared by the methods described by CA Bunton et al. (cited above) and by L. Horner et al.,Phosphorus and Sulfur,11 , 339 (1981). For example, cetyl dimethyl hydroxyethyl-2-ammonium bromide can be obtained by refluxing a solution of hexadecyl bromide and dimethylethanolamine in a mixture of acetonitrile and methanol and by recrystallizing the crystals obtained from methanol.

Comme indiqué ci-dessus, la composition suivant l'inventionse présente de préférence sous forme de solutionaqueuse tamponnée, de pH compris entre 8 et 11, de préférenceentre 9 et 10, par exemple une solution aqueuse d'un mélangede bicarbonate et d'hydrogénocarbonate de sodium.As indicated above, the composition according to the inventionpreferably comes in the form of a solutionbuffered aqueous, pH between 8 and 11, preferablybetween 9 and 10, for example an aqueous solution of a mixturebaking soda and sodium bicarbonate.

Cette solution aqueuse est appliquée sur le matériau àdécontaminer, par projection, pulvérisation ou simple lavage,ou encore il est possible de tremper les matériaux dans un baccontenant une composition suivant l'invention.This aqueous solution is applied to the material to bedecontaminate, by spraying, spraying or simple washing,or it is possible to dip the materials in a tankcontaining a composition according to the invention.

Suivant une variante de l'invention, le peracide et letensio-actif du type ammonium quaternaire, lorsque X est unhydroxyle, peuvent être combinés au sein de la même molécule,pour former un percarboxylate de tétraalkylammonium. Un telcomposé peut être obtenu par action du peracide de formule (I) ou (II) sur un hydroxyde de tétraalkylammonium, en quantitésstoechiométriques.According to a variant of the invention, the peracid and thequaternary ammonium type surfactant, when X is ahydroxyl, can be combined within the same molecule,to form a tetraalkylammonium percarboxylate. Suchcompound can be obtained by action of the peracid of formula (I)or (II) on a tetraalkylammonium hydroxide, in amountsstoichiometric.

Cette variante est particulièrement avantageuse car lepercarboxylate peut être généré in situ, et se présente ainsien solution aqueuse, sans qu'il soit nécessaire d'utiliser untampon carbonate qui est remplacé ici par l'hydroxyde detétraalkylammonium.This variant is particularly advantageous because thepercarboxylate can be generated in situ, and looks like thisin aqueous solution, without the need to use acarbonate buffer which is replaced here by hydroxidetetraalkylammonium.

L'hydroxyde de tétraalkylammonium peut être préparé enutilisant la méthode décrite par L. Sepulveda et al.,J. Phys.Chem.,89, 5322 (1985), à partir de sulfure de carbone etd'éthylate de sodium, et action d'un bromure de tétraalkylammoniumen milieu sulfurique, puis traitement par une basetelle que l'hydroxyde de baryum.Tetraalkylammonium hydroxide can be prepared using the method described by L. Sepulveda et al.,J. Phys. Chem .,89 , 5322 (1985), starting from carbon sulphide and sodium ethylate, and action of a tetraalkylammonium bromide in sulfuric medium, then treatment with a base such as barium hydroxide.

L'efficacité des compositions suivant l'invention pour ladécontamination de matériaux souillés par des composésorganophosphorés ou organosoufrés toxiques a été vérifée enles faisant agir sur des composés connus comme le O,O-diéthyl-O-p-nitrophénylphosphate (Paraoxon), dans la série descomposés organophosphorés, et le 2-phényl-2'-chlorodiéthylsulfure, analogue de l'Ypérite, dans la série des organosoufrés.The effectiveness of the compositions according to the invention for thedecontamination of materials contaminated with compoundsorganophosphorus or toxic organosulfur has been verified bycausing them to act on known compounds such as O, O-diethyl-O-p-nitrophenylphosphate (Paraoxon), in the series oforganophosphorus compounds, and 2-phenyl-2'-chlorodiethylsulfide, analog of Yperite, in the organosulfur series.

Les essais effectués montrent que les compositions del'invention provoquent la destruction des composés tels que leParaoxon et l'analogue de l'Ypérite de manière pratiquementinstantanée. Ce résultat est obtenu avec la compositioncontenant le peracide de formule (I) ou (II) en combinaisonavec l'agent tensio-actif du type ammonium quaternaire, ainsiqu'avec la composition contenant un percarboxylate detétraalkylammonium.The tests carried out show that the compositions ofthe invention cause the destruction of compounds such asParaoxon and the analogue of Yperite practicallyInstant. This result is obtained with the compositioncontaining the peracid of formula (I) or (II) in combinationwith the quaternary ammonium type surfactant, as wellthat with the composition containing a percarboxylate oftetraalkylammonium.

De plus, on constate que la composition de l'inventionprésente une excellente stabilité dans le temps, contrairement aux compositions classiques à base de peracides, et n'est pasagressive vis-à-vis des divers matériaux couramment traités.In addition, it can be seen that the composition of the inventionhas excellent stability over time, unliketo conventional compositions based on peracids, and is notaggressive towards the various materials commonly treated.

Les exemples suivants décrivent plus en détail les effetsde destruction du Paraoxon et d'un analogue de l'Ypérite pardes compositions suivant l'invention conmprenant soit unecombinaison de peracide et d'agent tensio-actif (Exemple 1),soit un percarboxylate de tétraalkylammonium (Exemple 2).The following examples describe the effects in more detailof destruction of Paraoxon and an analog of Yperite bycompositions according to the invention comprising either acombination of peracid and surfactant (Example 1),or a tetraalkylammonium percarboxylate (Example 2).

Les cinétiques de destruction s'effectuent pour leParaoxon suivant une technique usuelle, en spectroscopie UV à402 nm, correspondant au maximum d'absorption de l'ion p-nitrophénatelibéré, à 25°C.The kinetics of destruction are carried out for theParaoxon according to a usual technique, in UV spectroscopy at402 nm, corresponding to the maximum absorption of the p-nitrophenate ionreleased, at 25 ° C.

Les vitesses de destruction de l'analogue de l'Ypériteprécité sont déterminées par analyse chromatographique àintervalles réguliers, après addition d'un réducteur minéral(sulfate ferreux) ou organique (triphénylphosphine). On opèreà un pH de 9.The destruction speeds of the Yperite analogabove are determined by chromatographic analysis atregular intervals, after addition of a mineral reducer(ferrous sulfate) or organic (triphenylphosphine). We operateat a pH of 9.

Exemple 1Example 1

Le Tableau 1 ci-dessous indique le temps de demi-réaction(en s.), à 25°C, par action de chacun des quatre peracidesindiqués ci-après, en solution 2.10-3 M à pH 9, sur leParaoxon (5.10-5 M).Table 1 below indicates the half-reaction time (in s.), At 25 ° C., per action of each of the four peracids indicated below, in 2.10-3 M solution at pH 9, on the Paraoxon ( 5.10-5 M).

Peracides utilisés :

  • 1. acide phtalimidopercaproïque
  • 2. acide perdidécanoïque
  • 3. acide perdinonanoïque
  • 4. acide perdidodécanoïque
  • Peracids used:
  • 1. phthalimidopercaproic acid
  • 2. perdidecanoic acid
  • 3. perdinonanoic acid
  • 4. perdidodecanoic acid
  • Les agents tensio-actifs utilisés en combinaison avec lesperacides ci-dessus sont les suivants :

  • 5. chlorure de cétyl triméthyl ammonium
  • 6. bromure de cétyl triméthyl ammonium
  • 7. bromure de cétyl diméthyl hydroxyéthyl-2 ammonium
  • 8. bromure de cétyl méthyl bis(hydroxyéthyl-2) ammonium
  • 9. bromure de cétyl diaza-1,4 bicyclo(2.2.2) octylammoniumTensio-actifPeracide-56789MPPM53002030508020127500100100150270602360010102030103410020204030104108002010304050
  • The surfactants used in combination with the above peracids are:
  • 5. cetyl trimethyl ammonium chloride
  • 6. cetyl trimethyl ammonium bromide
  • 7. cetyl dimethyl hydroxyethyl-2-ammonium bromide
  • 8. cetyl methyl bis (2-hydroxyethyl) ammonium bromide
  • 9. cetyl diaza-1,4 bicyclo (2.2.2) octyl ammonium bromide Surfactant peracid - 5 6 7 8 9 MMPP 5300 20 30 50 80 20 1 27500 100 100 150 270 60 2 3600 10 10 20 30 10 3 4100 20 20 40 30 10 4 10800 20 10 30 40 50
  • Ces résultats montrent que la composition suivantl'invention procure des résultats équivalents à ceux obtenusavec le monoperphtalate de magnésium (MPPM) qui est lemeilleur décontaminant actuellement connu vis-à-vis duParaoxon. De plus, comme le montre l'exemple 2 ci-après, lescompositions de l'invention sont aussi efficaces contre lescomposés organosoufrés.These results show that the following compositionthe invention provides results equivalent to those obtainedwith magnesium monoperphthalate (MPPM) which is thebest decontaminant currently known forParaoxon. In addition, as shown in Example 2 below, thecompositions of the invention are also effective againstorganosulfur compounds.

    Exemple 2Example 2

    PeracideperacidpHpHT1/2 (s)T1/2 (s)MPPMMMPP9910101110,510.54040229,19.11010339,39.31010449,69.61010

    Cet exemple montre que la réaction est pratiquementtotale en quelques secondes. La comparaison avec le MPPM meten évidence l'efficacité du percarboxylate de cétyltriméthylammoniumde l'invention.This example shows that the reaction is practicallytotal in seconds. The comparison with MPPM putshighlight the effectiveness of cetyltrimethylammonium percarboxylateof the invention.

    Claims (6)

    1. Process for decontaminating materials contaminatedwith organophosphorus or organosulfur toxic agents, using acomposition containing a peracid and a surfactant,characterized in that this composition comprises
      a peracid, or a salt thereof, chosen from
      an imido peracid represented by the general formula(I)
      Figure 00140001
      in which n is an integer between 3 and 8, and R1, whichmay be identical or different in each -CHR1- group, isan alkyl group or a phenyl group, and
      phthalimidoperpropionic acid orphthalimidopercaproic acid, and
      a diperacid represented by the general formula (II)HO3C - (CHR2)p - CO3Hin which p is an integer between 2 and 10 and R2 hasthe same definition as R1, and
      perdidecanoic acid, perdinonanoic acid andperdidodecanoic acid, and
      a quaternary ammonium type of cationic surfactant.
    2. Process according to Claim 1,characterized in thatthe quaternary ammonium surfactant is represented by thegeneral formula (III)
      Figure 00150001
      in which R1, R2 and R3, which may be identical or different,represent an alkyl or hydroxyalkyl group of 1 to 4 carbonatoms, R4 represents a linear or branched alkyl group of 11to 18 carbon atoms, and X represents a halogen or ahydroxyl radical.
    3. Process according to Claim 2,characterized in that R1,R2 and R3 represent a methyl group, an ethyl group or ahydroxyethyl group, R4 represents a cetyl group and X ischlorine, bromine or an -OH radical.
    4. Process according to Claim 3,characterized in thatthe surfactant of general formula (III) is chosen fromcetyltrimethylammonium bromide or chloride, cetyldimethyl-2-hydroxyethylammoniumbromide, cetylmethylbis(2-hydroxyethyl)ammoniumbromide or cetyl-1,4-diazabicyclo[2.2.2]octylammoniumbromide,
    5. Process according to any one of the preceding claims,characterized in that the composition consists of anaqueous solution with a buffered pH of between 8 and 11.
    6. Process according to any one of Claims 1 to 4,characterized in that the peracid and the surfactant arecombined within the same molecule to form atetraalkylammonium percarboxylate.
    EP97905197A1996-03-141997-02-13Process using a peracid composition for decontaminating materials contaminated with toxic agentsExpired - LifetimeEP0848628B1 (en)

    Applications Claiming Priority (3)

    Application NumberPriority DateFiling DateTitle
    FR9603204AFR2746020B1 (en)1996-03-141996-03-14 COMPOSITION BASED ON PERACIDS FOR THE DECONTAMINATION OF MATERIALS CONTAMINATED BY TOXIC AGENTS
    FR96032041996-03-14
    PCT/FR1997/000274WO1997033655A1 (en)1996-03-141997-02-13Peracid composition for decontaminating materials contaminated with toxic agents

    Publications (2)

    Publication NumberPublication Date
    EP0848628A1 EP0848628A1 (en)1998-06-24
    EP0848628B1true EP0848628B1 (en)2003-04-23

    Family

    ID=9490179

    Family Applications (1)

    Application NumberTitlePriority DateFiling Date
    EP97905197AExpired - LifetimeEP0848628B1 (en)1996-03-141997-02-13Process using a peracid composition for decontaminating materials contaminated with toxic agents

    Country Status (8)

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    US (1)US6143088A (en)
    EP (1)EP0848628B1 (en)
    CA (1)CA2218079A1 (en)
    DE (1)DE69721197T2 (en)
    ES (1)ES2192666T3 (en)
    FR (1)FR2746020B1 (en)
    IL (1)IL121824A (en)
    WO (1)WO1997033655A1 (en)

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication numberPriority datePublication dateAssigneeTitle
    US7582594B2 (en)2003-10-172009-09-01Applied Research Associates, Inc.Dioxirane formulations for decontamination
    CA2593972A1 (en)*2005-01-112006-07-20Clean Earth Technologies, LlcFormulations for the decontamination of toxic chemicals
    WO2006076334A1 (en)*2005-01-112006-07-20Clean Earth Technologies, LlcPeracid/ peroxide composition and use thereof as an anti-microbial and a photosensitizer
    US8084662B2 (en)*2005-05-092011-12-27ChK Group Inc.Method for degrading chemical warfare agents using Mn(VII) oxide with-and-without solid support
    US20100179368A1 (en)*2008-11-072010-07-15Aries Associates, Inc.Novel Chemistries, Solutions, and Dispersal Systems for Decontamination of Chemical and Biological Systems

    Family Cites Families (10)

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    Publication numberPriority datePublication dateAssigneeTitle
    GB1054473A (en)*1964-05-08
    US3749674A (en)*1971-02-221973-07-31Procter & GambleBleach compositions
    US3749673A (en)*1971-02-221973-07-31Procter & GambleBleach-fabric softener compositions
    US3996152A (en)*1975-03-271976-12-07The Procter & Gamble CompanyBleaching composition
    DE3575574D1 (en)*1984-05-011990-03-01Unilever Nv LIQUID BLENDER COMPOSITIONS.
    US4902441A (en)*1988-03-311990-02-20The United States Of America As Represented By The Secretary Of The NavySelf moistening composition for deactivating toxic substances and method of use
    DE3823172C2 (en)*1988-07-081998-01-22Hoechst Ag Omega-phthalimidoperoxihexanoic acid, process for its preparation and its use
    US4992194A (en)*1989-06-121991-02-12Lever Brothers Company, Division Of Conopco Inc.Stably suspended organic peroxy bleach in a structured aqueous liquid
    FR2651133B1 (en)*1989-08-221992-10-23France Etat Armement PROCESS FOR DECONTAMINATION OF PERACID SOLUTIONS FROM MATERIALS CONTAMINATED WITH TOXIC AGENTS.
    FR2676368B1 (en)*1991-05-151994-10-28France Etat Armement DECONTAMINATION COMPOSITION BASED ON MAGNESIUM MONOPEROXYPHTHALATE AND METHOD FOR DECONTAMINATION OF CONTAMINATED MATERIALS WITH TOXIC AGENTS USING THE SAME.

    Also Published As

    Publication numberPublication date
    CA2218079A1 (en)1997-09-18
    IL121824A (en)2002-04-21
    FR2746020B1 (en)1998-04-24
    DE69721197D1 (en)2003-05-28
    DE69721197T2 (en)2004-04-01
    ES2192666T3 (en)2003-10-16
    FR2746020A1 (en)1997-09-19
    WO1997033655A1 (en)1997-09-18
    EP0848628A1 (en)1998-06-24
    IL121824A0 (en)1998-02-22
    US6143088A (en)2000-11-07

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