JPS5770184A - Preparation of needle coke - Google Patents
Preparation of needle cokeInfo
- 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
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
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)
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 | Production of coal-derived needle coke |
RU2754538C1 (en) * | 2017-11-14 | 2021-09-03 | Чайна Петролиум & Кемикал Корпорейшн | Coking system and coking method |
-
1980
- 1980-10-18 JP JP14611680A patent/JPS5770184A/en active Granted
Cited By (3)
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 | Production of coal-derived 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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0136905A3 (en) | Method of purification of phosphoric acid | |
GB1500337A (en) | Liquefaction of coal | |
JPS5228501A (en) | Process for preparing acicular pitch coke | |
JPS5770184A (en) | Preparation of needle coke | |
DE2853366A1 (en) | METHOD FOR TREATING COAL REFINING NON-DISTILLABLE SOLID CARBONATE FRACTIONS | |
JPS5649791A (en) | Purification of coal heavy oil | |
JPS57141487A (en) | Preparation of raw pitch for needle coke | |
JPS573882A (en) | Method for separating and recovering of coke oven gas | |
JPS57180689A (en) | Preparation of needle coke | |
JPS5681386A (en) | Production of blast furnace coke | |
GB1528472A (en) | Manufacture of coke | |
JPS55102690A (en) | Heat treatment of aliphatic hydrocarbon heavy oil | |
JPS5440808A (en) | Mixture of coal and hydrocabbon oil | |
JPS55104387A (en) | Production of heavy oil as raw material for high-quality carbonaceous material | |
JPS53102304A (en) | Preparation of coke | |
JPS5927984A (en) | Liquefaction of coal | |
JPS5560587A (en) | Treatment of crude tar in coke preparation | |
JPS51112803A (en) | Process for producing coke composed of petroleum heavy oil and coal | |
JPS57139179A (en) | Preparation of hard pitch | |
JPS53114569A (en) | Apparatus for separating and dehydrating scale | |
SU721455A1 (en) | Method of producing electrode pitch | |
JPS57128787A (en) | Extraction of oil of oil shales and oil sand with gaseous solvent | |
JPS53101001A (en) | Production of metallurgical coke | |
JPS54101803A (en) | Preparation of binder | |
JPS5360373A (en) | Treating method for tar sludge |