JPS5626009A - Production of carbon fiber - Google Patents

Production of carbon fiber

Info

Publication number
JPS5626009A
JPS5626009A JP10074279A JP10074279A JPS5626009A JP S5626009 A JPS5626009 A JP S5626009A JP 10074279 A JP10074279 A JP 10074279A JP 10074279 A JP10074279 A JP 10074279A JP S5626009 A JPS5626009 A JP S5626009A
Authority
JP
Japan
Prior art keywords
coal
depolymerized
fibers
carbonized
product
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
JP10074279A
Other languages
Japanese (ja)
Inventor
Mikio Oyabu
Kenji Fukuda
Keiichi Hirata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Coke Co Ltd
Original Assignee
Mitsui Coke Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Coke Co Ltd filed Critical Mitsui Coke Co Ltd
Priority to JP10074279A priority Critical patent/JPS5626009A/en
Publication of JPS5626009A publication Critical patent/JPS5626009A/en
Pending legal-status Critical Current

Links

Landscapes

  • Working-Up Tar And Pitch (AREA)
  • Inorganic Fibers (AREA)

Abstract

PURPOSE: A coal is depolymerized in a hydrocarbon solvent under pressurized hydrogen and specific conditions, then melt spun into fibers, which are made infusible and carbonized to produce high-quality titled fibers because of their void freeness, high surface smoothness and uniformity.
CONSTITUTION: A coal is depolymerized in a hydrocarbon solvent under conditions that are represented by the equation where the pressure of hydrogen is kept between 20W250kg/cm2G, the reaction temperature is given as T in °C, which ranges from 380 to 470°C, and the time as t in min. The insoluble solid part is removed and the solvent is distilled off to give a coal depolymerized product. The product is melt spun, made infusible, carbonized and subjected to graphitization to produce the objective carbon and graphite fibers. The coal depolymerized product preferably contains 40W70wt% of benzene-insoluble fraction, has an atomic ratio of less than 0.05 oxygen/carbon and gives 73wt% or higher carbonization yield and 2.0 or lower average length of alkyl side chains on aromatic rings.
COPYRIGHT: (C)1981,JPO&Japio
JP10074279A 1979-08-09 1979-08-09 Production of carbon fiber Pending JPS5626009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10074279A JPS5626009A (en) 1979-08-09 1979-08-09 Production of carbon fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10074279A JPS5626009A (en) 1979-08-09 1979-08-09 Production of carbon fiber

Publications (1)

Publication Number Publication Date
JPS5626009A true JPS5626009A (en) 1981-03-13

Family

ID=14282002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10074279A Pending JPS5626009A (en) 1979-08-09 1979-08-09 Production of carbon fiber

Country Status (1)

Country Link
JP (1) JPS5626009A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512076A1 (en) * 1981-08-29 1983-03-04 Mitsui Coke Co PROCESS FOR THE PREPARATION OF CARBON FIBERS WITH HIGH MECHANICAL RESISTANCE AND HIGH MODULE FROM BRAI
DE3242629A1 (en) * 1981-11-18 1983-05-26 Nippon Oil Co., Ltd., Tokyo INITIAL SPEECH FOR CARBON FIBERS
US4397830A (en) * 1981-04-13 1983-08-09 Nippon Oil Co., Ltd. Starting pitches for carbon fibers
US4606808A (en) * 1983-04-22 1986-08-19 Director-General Of The Agency Of Industrial Science & Technology Method for the preparation of pitches for spinning carbon fibers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584421A (en) * 1978-12-21 1980-06-25 Mitsui Cokes Kogyo Kk Method of making fibrous carbon
JPS5590620A (en) * 1978-12-25 1980-07-09 Mitsui Cokes Kogyo Kk Production of fibrous carbon from coal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584421A (en) * 1978-12-21 1980-06-25 Mitsui Cokes Kogyo Kk Method of making fibrous carbon
JPS5590620A (en) * 1978-12-25 1980-07-09 Mitsui Cokes Kogyo Kk Production of fibrous carbon from coal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397830A (en) * 1981-04-13 1983-08-09 Nippon Oil Co., Ltd. Starting pitches for carbon fibers
FR2512076A1 (en) * 1981-08-29 1983-03-04 Mitsui Coke Co PROCESS FOR THE PREPARATION OF CARBON FIBERS WITH HIGH MECHANICAL RESISTANCE AND HIGH MODULE FROM BRAI
DE3242629A1 (en) * 1981-11-18 1983-05-26 Nippon Oil Co., Ltd., Tokyo INITIAL SPEECH FOR CARBON FIBERS
US4460557A (en) * 1981-11-18 1984-07-17 Nippon Oil Co., Ltd. Starting pitches for carbon fibers
US4606808A (en) * 1983-04-22 1986-08-19 Director-General Of The Agency Of Industrial Science & Technology Method for the preparation of pitches for spinning carbon fibers

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