JPS5770184A - Preparation of needle coke - Google Patents

Preparation of needle coke

Info

Publication number
JPS5770184A
JPS5770184A JP14611680A JP14611680A JPS5770184A JP S5770184 A JPS5770184 A JP S5770184A JP 14611680 A JP14611680 A JP 14611680A JP 14611680 A JP14611680 A JP 14611680A JP S5770184 A JPS5770184 A JP S5770184A
Authority
JP
Japan
Prior art keywords
needle coke
treated
mixture
heat
content
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.)
Granted
Application number
JP14611680A
Other languages
Japanese (ja)
Other versions
JPH0114273B2 (en
Inventor
Hidemi Murata
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical Industries 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 Mitsubishi Chemical Industries Ltd filed Critical Mitsubishi Chemical Industries Ltd
Priority to JP14611680A priority Critical patent/JPS5770184A/en
Publication of JPS5770184A publication Critical patent/JPS5770184A/en
Publication of JPH0114273B2 publication Critical patent/JPH0114273B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Coke Industry (AREA)

Abstract

PURPOSE: To prepare needle coke capable of forming graphite of low expansion coefficient, by using a raw coal oil which, after removal of quinoline-insolubles (Q.I.), has been heat-treated to have a specific Q.I. value.
CONSTITUTION: A mixture of coal tar (pitch), etc. and a solvent (e.g. cyclohexanone or kerosene ) is left to stand and then a clear liquid containing substantially wo Q.I. (the content of Q.I. being about 0.8wt% or less) is formed by separating and removing the settled insoluble matter from the mixture. Subsequently, the clear liquid is heat-treated at about 380W430°C for several hours to about 20hrs to adjust the content of Q.I. at 1.5W25wt%, and the resulting raw coal oil in subjected to delayed coking.
COPYRIGHT: (C)1982,JPO&Japio
JP14611680A 1980-10-18 1980-10-18 Preparation of needle coke Granted JPS5770184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14611680A JPS5770184A (en) 1980-10-18 1980-10-18 Preparation of needle coke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14611680A JPS5770184A (en) 1980-10-18 1980-10-18 Preparation of needle coke

Publications (2)

Publication Number Publication Date
JPS5770184A true JPS5770184A (en) 1982-04-30
JPH0114273B2 JPH0114273B2 (en) 1989-03-10

Family

ID=15400513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14611680A Granted JPS5770184A (en) 1980-10-18 1980-10-18 Preparation of needle coke

Country Status (1)

Country Link
JP (1) JPS5770184A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067590A (en) * 1983-09-23 1985-04-17 Nippon Steel Chem Co Ltd Pitch coke
JPH02142889A (en) * 1988-11-25 1990-05-31 Mitsubishi Kasei Corp Method for producing coal-based needle coke
RU2754538C1 (en) * 2017-11-14 2021-09-03 Чайна Петролиум & Кемикал Корпорейшн Coking system and coking method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067590A (en) * 1983-09-23 1985-04-17 Nippon Steel Chem Co Ltd Pitch coke
JPH02142889A (en) * 1988-11-25 1990-05-31 Mitsubishi Kasei Corp Method for producing coal-based needle coke
RU2754538C1 (en) * 2017-11-14 2021-09-03 Чайна Петролиум & Кемикал Корпорейшн Coking system and coking method

Also Published As

Publication number Publication date
JPH0114273B2 (en) 1989-03-10

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