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JPS63196721A - Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticity - Google Patents

Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticity

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Publication number
JPS63196721A
JPS63196721AJP2460087AJP2460087AJPS63196721AJP S63196721 AJPS63196721 AJP S63196721AJP 2460087 AJP2460087 AJP 2460087AJP 2460087 AJP2460087 AJP 2460087AJP S63196721 AJPS63196721 AJP S63196721A
Authority
JP
Japan
Prior art keywords
mesophase
pitch
ingredients
component
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2460087A
Other languages
Japanese (ja)
Inventor
Shozo Watabe
渡部 正三
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to JP2460087ApriorityCriticalpatent/JPS63196721A/en
Publication of JPS63196721ApublicationCriticalpatent/JPS63196721A/en
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Abstract

PURPOSE:To obtain a raw material of 100% mesophase capable of providing carbon yarn having high strength and high modulus of elasticity, by distilling petroleum pitch under reduced pressure, aging, separating by specific gravity and heat-treating. CONSTITUTION:Pitch produced as a by-product by thermal cracking of desulfurized vacuum oil gas is distilled under reduced pressure to give a fraction having cut 85%. A nonoxidizing gas is introduced to the fraction and heated to 380-430 deg.C while stirring to give pitch containing 5-15% mesophase. The pitch is aged at 300-350 deg.C, only mesophase is fused and separated into a lower layer containing the fused mesophase and an upper layer containing no mesophase by difference in specific gravity. 6-8C aliphatic hydrocarbons are extracted from the lower layer part to give 100% mesophase of raffinate.

Description

Translated fromJapanese

【発明の詳細な説明】本発明は組成がH1成分、B、成分、その他からなる石
油系ピッチを加熱処理及び熟成処理する過程に於けるH
0成分及びB、成分の変化を究明追兇して。
DETAILED DESCRIPTION OF THE INVENTION The present invention aims to reduce H in the process of heat treatment and aging treatment of petroleum pitch whose composition consists of H1 component, B component, and others.
Investigate the changes in the 0 and B components.

特定範囲のH0成分、B、成分、Q、 S、成分及びQ
.i.成分から成る10096メソフエーズピツチをa
造する方法に関する。
Specific range of H0 component, B, component, Q, S, component and Q
.. i. 10,096 mesophasic pitches consisting of a
Concerning how to build.

〔従来の技術〕[Conventional technology]

近年航空機、自動車、その他権送機製作工業の急速な成
長の結果、それに必要な材料として特別な物質との組合
せに依シ、そのいくつかの物理的性質が極めて勝れてお
り、而も特異性を発揮しうる材料を望む声が大きくなっ
ているが、特に高い強度及び弾性を具備し、同時に動量
で安価な材料の出現が強く安来されている。しかるに現
在の技術でか\る材料を多菫に安定供給することが出来
なりので、これに答えるための複合材(強化樹脂)の製
造に関する研兇が盛んに行われている。
In recent years, as a result of the rapid growth of the aircraft, automobile, and other power transport manufacturing industries, the necessary materials have become dependent on the combination of special substances, and some of their physical properties are extremely superior and unique. There is a growing demand for materials that can exhibit high properties, and there is a strong demand for materials that have particularly high strength and elasticity, and at the same time are flexible and inexpensive. However, with the current technology, it is not possible to stably supply such materials to a wide range of materials, so research is being actively conducted on the production of composite materials (reinforced resins) in order to meet this demand.

複合材に使用される最も有望な材料の一つとして一&稙
維の高強度高弾性炭素繊維がある。この材料は前述の種
々の輸送機製作工業の急速な成長が始まりかけ念際に舘
く挽れたもので、この炭素稙維を樹脂と組合せると、全
く類例を見ないような特性を発揮する複合材を得ること
が出来る。
One of the most promising materials used in composites is high-strength, high-modulus carbon fiber. This material was created at the last minute just as the aforementioned rapid growth of the transportation equipment manufacturing industry began, and when this carbon fiber was combined with resin, it exhibited completely unprecedented properties. It is possible to obtain a composite material that

現在入手出来る高強度−弾性に紫稙維はポリアクリロニ
トリル繊維を特殊な方法で耐炎化し、後炭化して製造さ
れることは公知の事実であるが、このポリアクリロニト
リル繊維は前駆体として高価であるはかりでなく、この
前駆体からの炭素繊維の収率も約45%の如く低いため
、アクリロニトリル糸(PAN系)からの炭素繊維は高
価である。
It is a well-known fact that the currently available high-strength and elastic purple fibers are manufactured by making polyacrylonitrile fibers flame-resistant using a special method and then carbonizing them, but this polyacrylonitrile fiber is expensive as a precursor. Carbon fibers from acrylonitrile yarns (PAN-based) are expensive, as the yield of carbon fibers from this precursor is also low, such as about 45%.

高強度高弾性炭素繊維を安価に製造する一つの方法とし
てメソフェーズを官有するピッチを原料として高強度高
弾性炭素繊維を製造する方法が持分1i854−1,8
10に記載されており、メソフェーズを含有するピッチ
が高強度高弾性炭素繊維の原料であることは公知のφ実
である。然るにこのメソフェーズ金含有するピッチは多
くの非メソピッチを含有し、高強度高弾性炭素繊維の原
料として最適と考えられない。
As a method for manufacturing high-strength, high-modulus carbon fibers at low cost, there is a method for manufacturing high-strength, high-modulus carbon fibers using mesophase-bearing pitch as a raw material.
10, and it is a well-known fact that pitch containing mesophase is a raw material for high-strength, high-elasticity carbon fibers. However, this mesophase gold-containing pitch contains a large amount of non-mesopitch and is not considered optimal as a raw material for high-strength, high-modulus carbon fibers.

又特公昭57−88,016に依れば、H00チ約2.
0%乃至約20.0%、B、成分約15.0%乃至45
.0%を含有し、残余はQ、S、成分で約90es以上
メソフェーズを含有するピッチを原料とする炭素繊維の
製造性が記載され、しかもそれの特性が特公昭57−8
8.016に記載されている。それに依るとその炭化温
度は1.500℃であるが、その物性の11は高強度高
弾性炭素@維とは全く菖えぬ。
According to Special Publication No. 57-88, 016, H00chi approx. 2.
0% to about 20.0%, B, component about 15.0% to 45
.. The paper describes the manufacturability of carbon fibers made from pitch containing mesophase of approximately 90 es or more, with the remainder being Q, S, and the remaining components, and its characteristics are described in Japanese Patent Publication No. 57-8.
8.016. According to this, its carbonization temperature is 1.500°C, but its physical properties 11 are completely different from those of high-strength, high-elastic carbon fiber.

〔本発明が解決しようとする問題点〕[Problems to be solved by the present invention]

本発明の目的は溶融紡糸用の100暢メンフエーズピツ
チの組成がH0成分、B、成分、Q、 S、成分及びQ
.i.成分よりなり、それの生成機構の解明を基にし原
料の石油系ピッチの組成のH0成分及びB、成分の加熱
、熟成処理の過程を制御して高強度高弾性炭素繊維用1
00%メソフェーズピッチとし最適の組成の100%メ
ソフェーズピッチを製造する方法を提供することである
The object of the present invention is that the composition of a 100-strand memphaze pitch for melt spinning is H0 component, B component, Q, S component, and Q.
.. i. Based on the elucidation of the formation mechanism of these components, the H0 component and B of the composition of petroleum-based pitch as a raw material, and the heating and aging process of the components are controlled to produce high-strength, high-elastic carbon fiber 1.
An object of the present invention is to provide a method for producing 100% mesophase pitch having an optimal composition.

〔問題を解決する中段〕[Middle stage of problem solving]

高強だ高弾性炭素繊維用の安価な且つ物性の安定した1
00%メソフェーズピッチを製造する方法として、極め
て安価な石油系ピッチ(H,成分、B。
1. Inexpensive and stable physical properties for high strength and high elasticity carbon fiber.
As a method for producing 00% mesophase pitch, extremely cheap petroleum-based pitch (H, component, B.

成分、その他)を原料とし、H8成分及びB、成分が加
熱処理及び熟成処理中に軸通する天々の成分の動向及び
変化を追求して、10096メソフエーズビツチを合理
的に製造することにある。
To rationally manufacture 10096 mesophase bits by using H8 component, B component, and other components as raw materials and pursuing trends and changes in the natural components that pass through heat treatment and aging treatment. It is in.

その目的とするところは、脱硫減圧軽油の熱接触分解(
FCC)に依って一生する石油系ピッチ(初w240℃
乃至終留560℃)を減圧蒸留して関囁カットした留分
(初留460℃乃至終留560℃、H0成分20.0%
乃至84.Os、 B、成分16.096乃至80.0
%、Q.i.成分0.2%、無機質物0.1悌)に非酸
化性ガスを吹き込み撹拌しつゝ温度380℃乃至420
℃で2時間乃至10時間常圧或は加圧下で加熱処理し、
メソフェーズ(偏光w4倣鋭で確認する)を5.0%乃
至15.(l含有するピッチを造り、この生成ピッチを
温度300℃乃至350℃で8時間乃至3011間非酸
化性ガス気流下熟成させ、生成ピッチ中のメソフェーズ
のみを1層巨大化させ、その熟成温度で比重の差に依っ
て上層に全くメソフェーズを含有せぬ非メソピッチ(偏
光顕微鏡で確認。
The purpose of this is to thermally catalytic cracking of desulfurized vacuum gas oil (
Petroleum-based pitch (first w240℃) that lasts a lifetime depending on FCC)
Distilled under reduced pressure from 560°C to final distillate and cut the fraction (from 460°C to final distillate 560°C, H0 component 20.0%)
to 84. Os, B, component 16.096 to 80.0
%, Q. i. Non-oxidizing gas was blown into the mixture (0.2% of ingredients, 0.1% of inorganic matter) and the mixture was heated to a temperature of 380°C to 420°C while stirring.
Heat treatment at ℃ for 2 hours to 10 hours under normal pressure or pressure,
Mesophase (confirmed with polarized light w4 scanning sharp) 5.0% to 15. (Pitch containing l is produced, and this produced pitch is aged at a temperature of 300°C to 350°C for 8 hours to 3011 hours under a stream of non-oxidizing gas, only the mesophase in the produced pitch becomes one layer larger, and at that aging temperature Due to the difference in specific gravity, the upper layer does not contain any mesophase (confirmed with a polarizing microscope).

H00チ10.0%乃至17.0%、B、成分22.0
%乃至46.0%、Q、 S、成分42.0%乃至60
.0%、Q.i.成分0.5%以下、このq、z、成分
は水路することに依9可溶)と下層にメソフェーズと画
然と分離精製し、これを前躯体として使用する。同この
際石油系ピッチを製造するための熱接触分解(FCC)
で使用される触媒の無機質の倣粉末及び分解温度約51
0℃で副生ずるキノリンネ溶分の有機物等を前述のメソ
フェーズピッチ中に包含させることが出来る、従って分
離精製する非メソピッチを溶融紡糸用の100%メン7
エーズビツチ製造用の前駆体として使用する事に依シ、
原料の石油系ピッチ中に混入する無機質の雇媒及び中ノ
リン不浴の有機質物を全く無くすることが可能となシ、
従って前駆体にこれ等の混入物が全く無くなシ溶M幼糸
用の100%メソフェーズピッチ中にも混入することも
無くなるので、これ等の混入物に依る浴融紡糸の際の糸
切を無くすると云う他めて優れた効果を発揮することが
出来る。
H00chi 10.0% to 17.0%, B, component 22.0
% to 46.0%, Q, S, component 42.0% to 60
.. 0%, Q. i. The components 0.5% or less (q, z, 9) are clearly separated and purified from the mesophase in the lower layer and used as a precursor. At this time, thermal catalytic cracking (FCC) was used to produce petroleum-based pitch.
The inorganic imitation powder of the catalyst used in and the decomposition temperature of about 51
It is possible to incorporate the organic matter of the quinoline solution which is produced as a by-product at 0°C into the above-mentioned mesophase pitch.
Depending on its use as a precursor for the production of
It is possible to completely eliminate inorganic solvents and non-bathable organic substances mixed in the raw petroleum pitch,
Therefore, these contaminants are completely absent from the precursor, and they will not be mixed in the 100% mesophase pitch for molten M young yarn, so thread breakage during bath-melt spinning due to these contaminants will be avoided. In addition to eliminating it, excellent effects can be achieved.

前述の非メソピッチ(H,成分10.0%乃至17.0
%。
The aforementioned non-mesopitch (H, component 10.0% to 17.0%
%.

B、成分22.0 %乃至46.0 s、 Q、8.成
分42.0 %乃至60.0%、Q.i.成分0.5%
以下)100部に対して後述の非メソピッチ(H,成分
2.04乃至6.0%、B。
B, component 22.0% to 46.0s, Q, 8. Ingredients: 42.0% to 60.0%, Q. i. Ingredients 0.5%
Below) 100 parts of non-mesopitch (H, component 2.04 to 6.0%, B) as described below.

成分22.0%乃至33.0%、Q、 8.成分60.
0チ乃至82、Os、 Q、 i、成分0.4%乃至4
.0%)を60部乃至140部混合し、これ勢の混合物
に常圧或は加圧下で非酸化性ガスを吹き込み撹拌しつゝ
温度380℃乃至430℃で1時間乃至6時間加熱処理
してメソフェーズを15%乃至60%含有するピッチを
造り、この生成ピッチを温度300℃乃至350℃で時
間5時間乃至I時間非酸化性ガス下で熟成させピッチ中
のメソフェーズのみを融着巨大化させその熟成温度で物
性(比重或は粘度)の差に依9上層に全くメソフェーズ
を含有せぬ非メソピッチ(H,成分2.0%乃至6.O
l、B、成分22.0 %乃至33.096゜q、 s
、成分60.0%乃至82.0%、Q.i.成分0.4
%乃至4.0傷このQ.i.成分は水添に依り可溶)を
下層に100%メソフェーズピッチ(H,成分0.4%
乃至4.0%、B、成分8.0%乃至21.0%、Q、
 S、成分42.O優乃至56.0%、Q、 t、 2
8.0%乃至44.0%このQ、1゜成分は水痘に依り
可溶)を画然と区分する。この分離精製した100俤メ
ソ7エーズピツチは前述の如(H,成分、B、成分、Q
、S、成分及びq、i、成分の4成分が夫々互に融合し
てメソフェーズピッチを形成しているが、この成分中H
11成はその分子量も小さく4成分中最も挿発し易い、
従って100%メソフェーズピッチを溶融紡糸する際紡
糸孔からより多くH00成が飛散して糸切れの原因とな
るので。
Ingredients 22.0% to 33.0%, Q, 8. Ingredient 60.
0chi to 82, Os, Q, i, component 0.4% to 4
.. 0%) were mixed, and the mixture was heated at a temperature of 380°C to 430°C for 1 to 6 hours while blowing a non-oxidizing gas under normal pressure or pressurization and stirring. A pitch containing 15% to 60% of mesophase is produced, and the resulting pitch is aged at a temperature of 300°C to 350°C for 5 to 1 hours under a non-oxidizing gas to fuse only the mesophase in the pitch and make it large. It depends on the difference in physical properties (specific gravity or viscosity) depending on the aging temperature. 9 Non-mesopitch (H, component 2.0% to 6.0
l, B, component 22.0% to 33.096゜q, s
, components 60.0% to 82.0%, Q. i. Ingredients 0.4
% to 4.0 scratches on this Q. i. 100% mesophase pitch (H, component 0.4%
4.0% to 4.0%, B, component 8.0% to 21.0%, Q,
S, component 42. O good to 56.0%, Q, t, 2
8.0% to 44.0% (this Q, 1° component is soluble depending on chickenpox) is clearly classified. This separated and purified 100 yen meso 7Aze pitch was prepared as described above (H, component, B, component, Q).
, S, component and q, i, component fuse together to form mesophase pitch, but in this component, H
11 has a small molecular weight and is the most easily detected among the four components.
Therefore, when melt-spinning 100% mesophase pitch, more H00 particles are scattered from the spinning holes, causing yarn breakage.

このH11成は紡糸される炭素繊維の物性にも良い影響
を与えるとは考えられぬ。
This H11 formation is not considered to have a positive effect on the physical properties of the spun carbon fiber.

コ(7)1001メソフエーズピツチの紡糸性を改善し
、更にこのピッチから炭素繊維の物性の向上のりae)
100%メソフェーズピッチ中のH11成を炭素数6乃
至8の脂肪族縦比水素に依る溶剤抽出法で除去して得ら
れるラフネート(H,成分0.1%以下、B、成分8.
0%乃至22.0%、Q、S、成分42.0%乃至58
.0%、Q.i.成分29.0%乃至46.0畳)の1
00係メソフエーズピツチをm融紡糸用に使用する。こ
の組成の100%メソフェーズピッチは、平均分子量の
分布がより平均化され、紡糸性も改善され、紡糸孔が多
穴(数百個以上)の場合にも糸切れも殆ど無く長時間紡
糸を可能とする。このラフィネートの100%メソフェ
ーズピッチの軟化点240℃乃至270’C1粘度32
0℃で100.1!イズ乃至160ポイズであるが、ラ
フィネートの100%メソフェーズピッチの各成分即ち
H11成、B、成分、Q、 8.成分及びQ.i.成分
の割合史に夫々の構造に依り、ラフィネートの100%
メソフェーズピッチの物性即ち軟化点、粘度、平均分子
量及び#融紡糸性等が直接定まるもので、従って夫々の
構造及び割合とラフィネートの物性との関係を切り離す
ことは全く出来ない。
(7) Improving the spinnability of 1001 mesophase pitch and further improving the physical properties of carbon fiber from this pitch (ae)
Roughnate (H, component 0.1% or less, B, component 8.
0% to 22.0%, Q, S, component 42.0% to 58
.. 0%, Q. i. component 29.0% to 46.0 tatami)
00 mesophase pitch is used for m-melt spinning. 100% mesophase pitch with this composition has a more even average molecular weight distribution, improved spinnability, and allows long-time spinning with almost no yarn breakage even when there are many spinning holes (several hundred or more). shall be. Softening point of 100% mesophase pitch of this raffinate: 240°C to 270'C1 Viscosity: 32
100.1 at 0℃! 160 poise, each component of 100% mesophase pitch of raffinate, namely H11 component, B component, Q, 8. Ingredients and Q. i. 100% of raffinate, depending on the composition of each component
The physical properties of mesophase pitch, such as softening point, viscosity, average molecular weight, #melt spinnability, etc., are directly determined, and therefore the relationship between each structure and proportion and the physical properties of raffinate cannot be separated at all.

100%メソフェーズぎツチを製造する際上層に分離さ
れる全くメソフェーズを含有せぬ非メソピッチ(H,成
分2.0囁乃至6.0%、B、成分22.0%乃至33
.0%、Q、 S、成分60.0%乃至82.0%、Q
.i.成分0.4%乃至4.0 % )は前述の前駆体
と混合し、100 %メソフェーズぎツチを製造するた
めの原料とすることが出来る。
100% Mesophase Non-mesopitch containing no mesophase (H, component 2.0% to 6.0%, B, component 22.0% to 33%) separated into the upper layer when producing 100% mesophase.
.. 0%, Q, S, component 60.0% to 82.0%, Q
.. i. The components (0.4% to 4.0%) can be mixed with the aforementioned precursors and used as raw materials for producing 100% mesophase joints.

同100%メソ7エーズピツチ製造用の原料の前駆体の
非メソピッチ(H11成10.0%乃至17.0 s。
Non-mesopitch (H11 formation 10.0% to 17.0 s) as a precursor of the raw material for producing 100% meso-7Aze pitch.

B、成分22.0%乃至46.0%、Q、 S、成分4
2.0%乃至62.0%、Q、i、成分0.5%以下)
を製造する好ましい加熱処理条件は温度390℃乃至4
10℃、時間4時間乃至8時間、好ましい熟成M7N条
件は温良310℃乃至330℃、時間10時間乃至(9
)時間で、更に1tJO%メソフェーズピッチをs造す
る好ましい加熱処理条件は温度390℃乃至410℃1
時間1時間乃主4時間で、それの熟成MN条件は前駆体
を製造する熟成M81着条件と殆ど同じである。
B, component 22.0% to 46.0%, Q, S, component 4
2.0% to 62.0%, Q, i, component 0.5% or less)
The preferred heat treatment conditions for manufacturing are a temperature of 390°C to 4.
10℃, time 4 hours to 8 hours, preferable aging M7N conditions are temperature 310℃ to 330℃, time 10 hours to (9
) time, and the preferable heat treatment conditions for further forming 1 tJO% mesophase pitch are at a temperature of 390°C to 410°C.
The aging time was 1 hour to 4 hours, and the aging MN conditions were almost the same as the aging M81 conditions for producing the precursor.

これ等の加熱処理及び熟成融着処理に使用する非酸化性
ガスはエタン、プロ、eン、ブタン、沸点の低い1負化
しない留分及び最も優れているガスは石油ピッチから減
圧蒸留し造る留分を加熱処理する際細生するドライガス
(例えは水素6.0%、メタン74.6%、エタン13
.3暢、プロ/973.6%、ブタン1.3%、ペンタ
ン0.9%、オレフィン約0.3%)を挙げることが出
来る。
The non-oxidizing gases used in these heat treatments and aging fusion treatments are ethane, pro, ene, butane, fractions with low boiling points that do not turn negative, and the best gases are distilled under reduced pressure from petroleum pitch. Dry gas (e.g. 6.0% hydrogen, 74.6% methane, 13% ethane) that forms when heat-treating the fraction.
.. 3%, pro/973.6%, butane 1.3%, pentane 0.9%, olefin approximately 0.3%).

実施例1脱硫減圧軽油の熱接触分解(FCC)に依って副生する
石油系ピッチ(H,成分76.18%、B、成分23.
82俤、Q.i.成分0.1%、無機質物0.1暢以下
)を減圧蒸留して85優カツトし念留分(初留460℃
乃至終留560℃、H11成43.8%、B、成分55
.2%、Q.i.成分O,S S、無機質物0.1%)
にプロパンガスを吹き込み攪拌しながら加熱温度400
℃で6時間加熱処理し、後生成ピッチをプロ/Qンガス
下温度320℃で田時間熟成させ、生成ピッチ中のメソ
フェーズのみを融着巨大化させ、その熟成温度で比重の
差に依り上層に全くメソフェーズを含有せぬ非メソピッ
チ(H,成分11.34%、B.成分42.42俤、Q
、S、成分45.86%、Q.i.成分0.38%)を
下層にメソフェーズピッチをと画然と分*t、taする
Example 1 Petroleum pitch (H, component 76.18%, B, component 23.1%) produced by thermal catalytic cracking (FCC) of desulfurized vacuum gas oil.
82 yen, Q. i. 0.1% of components, less than 0.1% of inorganic substances) are distilled under reduced pressure to cut 85% of the total fraction (initial distillation at 460°C).
to final distillation 560°C, H11 composition 43.8%, B, component 55
.. 2%, Q. i. Ingredients O, SS, inorganic substances 0.1%)
Blow in propane gas and heat to 400 ml while stirring.
After heat treatment at ℃ for 6 hours, the resulting pitch is aged for an hour at 320℃ under Pro/Q gas, and only the mesophase in the generated pitch is fused and becomes gigantic. Non-mesopitch containing no mesophase (H, component 11.34%, B. component 42.42 yen, Q
, S, component 45.86%, Q. i. 0.38%) and mesophase pitch as the lower layer.

この分離精製した高強度高弾性炭素繊維製造用の非メソ
ピッチを製造すると共に下層に分離する融着巨大化し九
メソ7エーズビツチ中に石油系ピッチ中に既存するキノ
リンネ溶分及び触媒の微小無機質物を包含させ、これ等
の夾雑物を全く含有せぬ前述の非メソピッチ100部に
対して後述の非メソピッチ(H,成分3.73優、B、
成分31.82%、Q、S。
This separated and refined non-mesopitch for producing high-strength, high-elastic carbon fibers is produced, and the quinolinated content and catalyst minute inorganic substances existing in the petroleum-based pitch are removed during the fusion process, which is separated into the lower layer and becomes gigantic. To 100 parts of the above-mentioned non-mesopitch containing no impurities, the below-mentioned non-mesopitch (H, component 3.73%, B,
Ingredients 31.82%, Q, S.

成分63.95%、Q.i.成分0.5096) 10
0部を混合しプロパンガスを吹き込み攪拌しながら加熱
温度400℃で2時間加熱処理しメソフェーズを44.
5%含有するピッチを造り、この生成ピッチをプロパン
ガス下温度320℃で加時間熟成させ、ピッチ中のメソ
フェーズのみを融着巨大化させ、温度320℃で上層に
全くメソフェーズを含有せぬ非メソピッチ(H,成分3
.73%、B、成分31.82%、Q、 8.成分63
.95%、Q.i.成分0.50%)を下層に100%
メソフェーズピッチ(H,成分2.60%、B、成分1
8.82%、Q、 S、成分48.60%、Q.i.成
分29.98 es )とに比重の差に依シ画然と分j
IIhI製し、この100 %メソフェーズピッチをヘ
プタンの溶剤で抽出して得られるラフィネートの100
%メソフェーズピッチ(H0成分0.16%、B、成分
18.85%、Q、B、成分48.67俤、Q.i.成
分32.32%)を得ることができる。この高強度高弾
性炭素繊維製造用の原料のラフィネートの100%メソ
フェーズピッチの軟化点は252℃、粘度は320℃で
124ポイズである。
Ingredients: 63.95%, Q. i. Component 0.5096) 10
0 parts were mixed and heated at a heating temperature of 400°C for 2 hours while blowing propane gas and stirring to form a mesophase of 44.0 parts.
Pitch containing 5% is produced, and the resulting pitch is aged under propane gas at a temperature of 320°C for a time to fuse only the mesophase in the pitch to a large size. (H, component 3
.. 73%, B, component 31.82%, Q, 8. Ingredient 63
.. 95%, Q. i. component 0.50%) in the lower layer 100%
Mesophase pitch (H, component 2.60%, B, component 1
8.82%, Q, S, component 48.60%, Q. i. It clearly depends on the difference in specific gravity between component 29.98 es) and
100% of the raffinate obtained by extracting this 100% mesophase pitch with a solvent of heptane.
% mesophase pitch (H0 component 0.16%, B component 18.85%, Q, B component 48.67, Qi component 32.32%). The softening point of 100% mesophase pitch of raffinate, which is a raw material for producing this high-strength, high-modulus carbon fiber, is 252°C, and the viscosity is 124 poise at 320°C.

紡糸用のラフィネートの原料の100%メン7エーズピ
′ツチを製造する際に使用する非メンピッチ(H,成分
3.73%、B、成分31.82%、Q、S、成分63
.95%、Q.i.成分0.50優)には100係メソ
フエーズピツチを製造するlim!&ij生する上層の
全くメソフェーズを含有せぬ非メンピッチを分離して之
に当てることが出来る。
Non-men pitch (H, component 3.73%, B, component 31.82%, Q, S, component 63
.. 95%, Q. i. Ingredients 0.50%) is lim to produce 100 mesophase pitches! &ij The upper layer of non-mempic which does not contain any mesophase can be separated and applied thereto.

〔発明の効果〕〔Effect of the invention〕

扁強度高弾性炭素繊維の原料の100優メンフエーズピ
ツチの組成がH0成分、B、成分、Q、 S、成分及び
Q.i.成分よシ桝成されていること依シ、原料の石油
系ピッチの組成のH6成分及びB、成分の加熱処理及び
熟成処理の工程の変化にともなう変遷を退%解明するこ
とに依シ常に物性の安定した100 %メソフェーズピ
ッチを造り、更にこれからH0成分のみを除去すること
に依夛、浴融紡糸性も極めて優れたものとなシ、これを
原料とする長繊維の炭素繊維は高強度超高弾性で全く画
期的物性を発揮することが出来る。
The composition of 100-yellow phase pitch, which is a raw material for flat strength and high modulus carbon fiber, is H0 component, B component, Q, S component, and Q. i. The physical properties of the H6 and B components of the petroleum-based pitch used as a raw material depend on the composition of the raw material, and it is important to elucidate the changes caused by changes in the heat treatment and aging process of the components. By creating a stable 100% mesophase pitch and removing only the H0 component from it, it has extremely excellent bath melt spinnability, and the long fiber carbon fiber made from this as a raw material has high strength and ultra-high strength. It can exhibit completely innovative physical properties due to its elasticity.

Claims (1)

Translated fromJapanese
【特許請求の範囲】1)H.成分:サンプル10grからヘプタン150c
cで温度98.4℃で抽出される成分。B.成分:前述のH.成分の溶剤抽出に依つて得られる
H.不溶分からベンゼン150ccで温度80.1℃で抽出される成分。Q.S.成分:前述のB.成分の溶剤抽出に依つて得ら
れるB.不溶分からキノリン150ccによつて、温度237℃で抽出される成分。Q.i.成分:前述のQ.S.成分の溶剤抽出に依つて
得られる不溶分。と定義し長繊維の高強度高弾性炭素繊維用原料のメソフェーズの
製造に当り、脱硫減圧軽油の熱接触分解(FCC)に依
つて副生する石油系ピッチ(初留220℃乃至終留56
0℃)を減圧蒸留し85%カットした留分(初留460
℃乃至終留560℃、H.成分20.0%乃至84.0
%、B.成分16.0%乃至80.0%、Q.i.成分
0.2%以下、無機質物0.1%以下)に非酸化性ガス
を吹き込み撹拌しつゝ温度380℃乃至430℃で加熱
処理してメソフェーズを5%乃至15%含有するピッチ
を造り、この生成ピッチを温度300℃乃至350℃で
熟成し生成ピッチ中のメソフェーズのみを熟成融着させ
、その熟成温度で下層のメソフェーズピッチと上層の全
くメソフェーズを含有せぬ非メソピッチ(H.成分10
.0%乃至17.0%、B.成分22.0%乃至46.
0%、Q.S.成分42.0%乃至60.0%、Q.i
.成分0.5%以下、このQ.i.は水添することに依
り可溶)とに比重の差に依り画然と分離精製し、この非
メソピッチを前駆体とし、この前駆体100部に対して
、後述の非メソピッチ(H.成分2.0%乃至6.0%
、B.成分22.0%乃至33.0%、Q.S.成分6
0.0%乃至82.0%、Q.i.成分0.4%乃至4
.0%、このQ.i.成分は水添することに依り可溶)
を60部乃至140部混合し、これ等の混合物に常圧或
は加圧下で非酸化性ガスを吹き込み攪拌しつゝ温度38
0℃乃至430℃で加熱処理してメソフェーズを15%
乃至60%含有するピッチを造り、この生成ピッチを温
度300℃乃至350℃、非酸化性ガス気流下で熟成し
、生成ピッチ中のメソフェーズのみを融着巨大化させ、
その熟成温度で上層の全くメソフェーズを含有せぬ非メ
ソピッチ(H.成分2.0%乃至6.0%、B.成分2
2.0%乃至33.0%、Q.S.成分60.0%乃至
82.0%、Q.i.成分0.4%乃至4.0%)と下
層の100%メソフェーズピッチとに比重の差に依り画
然と分離区分し、この100%メソフェーズピッチを炭
素数6乃至8の脂肪族炭化水素による溶剤抽出に付して
得られるラフネートの100%メソフェーズピッチ(H
.成分0.1%以下、B.成分8.0%乃至22.0%
、Q.S.成分42.0%乃至58.0%、Q.i.成
分29.0%乃至46.0%)を造り、軟化点250℃
乃至280℃、粘度320℃で100ポイズ乃至160
ポイズである100%メソフェーズピッチを使用す驍■■■■■■■髣n融紡糸法。2)長繊維の高強度高弾性炭素繊維用原料の100%メ
ソフェーズピッチを製造するための前述の非メソピッチ
(H.成分2.0%乃至6.0%、B.成分22.0%
乃至33.0%、Q.S.成分60.0%乃至82.0
%、Q.i.成分0.4%乃至4.0%)は石油系ピッ
チ(初留240℃乃至560℃)から直接造ることなく
、溶融紡糸用100%メソフェーズピッチを製造する際
に副生される非メソピッチを使用する請求範囲の第1の
方法。
[Claims] 1) H. Ingredients: sample 10g to heptane 150c
Components extracted at a temperature of 98.4°C. B. Ingredients: H. H. obtained by solvent extraction of the components. A component extracted from insoluble matter using 150 cc of benzene at a temperature of 80.1°C. Q. S. Ingredients: B. B. obtained by solvent extraction of the components. A component extracted from insoluble matter using 150 cc of quinoline at a temperature of 237°C. Q. i. Ingredients: Q. S. Insoluble matter obtained by solvent extraction of components. In producing mesophase, a raw material for long-fiber, high-strength, high-modulus carbon fibers, petroleum-based pitch (initial distillation temperature 220°C to final distillation temperature 56°C) is produced as a by-product through thermal catalytic cracking (FCC) of desulfurized vacuum gas oil
0°C) was distilled under reduced pressure and cut by 85% (initial distillation 460
°C to final distillation 560 °C, H. Ingredients 20.0% to 84.0
%, B. Ingredients 16.0% to 80.0%, Q. i. A pitch containing 5% to 15% of mesophase is produced by blowing a non-oxidizing gas into the pitch (components: 0.2% or less, inorganic matter: 0.1% or less) and heating at a temperature of 380°C to 430°C while stirring. This produced pitch is aged at a temperature of 300°C to 350°C to age and fuse only the mesophase in the produced pitch, and at that aging temperature, the lower layer of mesophase pitch and the upper layer of non-mesopitch containing no mesophase (H. Component 10
.. 0% to 17.0%, B. Ingredients 22.0% to 46.
0%, Q. S. Ingredients 42.0% to 60.0%, Q. i
.. Ingredients 0.5% or less, this Q. i. This non-mesopitch is used as a precursor, and 100 parts of this precursor is mixed with non-mesopitch (H. .0% to 6.0%
,B. Ingredients 22.0% to 33.0%, Q. S. Ingredient 6
0.0% to 82.0%, Q. i. Ingredients 0.4% to 4
.. 0%, this Q. i. Ingredients are soluble by hydrogenation)
A non-oxidizing gas was blown into the mixture under normal pressure or pressurization, and the mixture was heated to a temperature of 38% while stirring.
Heat treatment at 0℃ to 430℃ to reduce mesophase to 15%
Pitch containing 60% to 60% is produced, and the resulting pitch is aged at a temperature of 300° C. to 350° C. under a non-oxidizing gas flow, so that only the mesophase in the resulting pitch fuses and becomes gigantic.
At that aging temperature, the upper layer is a non-mesopitch containing no mesophase (H. component 2.0% to 6.0%, B. component 2).
2.0% to 33.0%, Q. S. Ingredients 60.0% to 82.0%, Q. i. 0.4% to 4.0%) and the lower layer 100% mesophase pitch based on the difference in specific gravity. 100% mesophase pitch (H
.. Ingredients 0.1% or less, B. Ingredients 8.0% to 22.0%
,Q. S. Ingredients 42.0% to 58.0%, Q. i. 29.0% to 46.0%) with a softening point of 250℃
100 poise to 160 at 280℃, viscosity 320℃
Melt spinning method using 100% mesophase pitch. 2) The above-mentioned non-meso pitch (H. component 2.0% to 6.0%, B. component 22.0%) for producing 100% mesophase pitch as a raw material for long fiber high strength and high elasticity carbon fiber.
~33.0%, Q. S. Ingredients 60.0% to 82.0
%, Q. i. The component (0.4% to 4.0%) is not produced directly from petroleum pitch (initial distillation temperature 240°C to 560°C), but uses non-mesopitch that is by-produced when producing 100% mesophase pitch for melt spinning. The first method of the claim.
JP2460087A1987-02-061987-02-06Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticityPendingJPS63196721A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP2460087AJPS63196721A (en)1987-02-061987-02-06Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticity

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP2460087AJPS63196721A (en)1987-02-061987-02-06Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticity

Publications (1)

Publication NumberPublication Date
JPS63196721Atrue JPS63196721A (en)1988-08-15

Family

ID=12142641

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP2460087APendingJPS63196721A (en)1987-02-061987-02-06Production of 100% mesophase for carbon yarn having high strength and high modulus of elasticity

Country Status (1)

CountryLink
JP (1)JPS63196721A (en)

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