JPS5777016A - Manufacture of small mesocarbon sphere - Google Patents

Manufacture of small mesocarbon sphere

Info

Publication number
JPS5777016A
JPS5777016A JP55153318A JP15331880A JPS5777016A JP S5777016 A JPS5777016 A JP S5777016A JP 55153318 A JP55153318 A JP 55153318A JP 15331880 A JP15331880 A JP 15331880A JP S5777016 A JPS5777016 A JP S5777016A
Authority
JP
Japan
Prior art keywords
pitch
small
mesocarbon
spheres
manufacture
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
JP55153318A
Other languages
Japanese (ja)
Other versions
JPS631241B2 (en
Inventor
Takane Miyazaki
Shigeki Tomono
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 Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP55153318A priority Critical patent/JPS5777016A/en
Publication of JPS5777016A publication Critical patent/JPS5777016A/en
Publication of JPS631241B2 publication Critical patent/JPS631241B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To manufacture small mesocarbon spheres in a high yield by adding hydrocarbon oil with a specified b.p. and repeating heat treatment when pitch is heat treated to manufacture small mesocarbon spheres.
CONSTITUTION: Pitch such as soft coal tar pitch is heated to 350W500°C to form small mesocarbon spheres, and the spheres are separated from the pitch matrix by solvent extraction, solvent fractionation, centrifugal separation, pressure filtration or other method. At this time, ≥1/4 time as much hydrocarbon oil as pitch is added, and heat treatment is carried out again at 350W500°C. The b.p. of the hydrocarbon oil is 300°C to the heat treatment temp. Thus, the yield of small mesocarbon spheres can be increased considerably.
COPYRIGHT: (C)1982,JPO&Japio
JP55153318A 1980-10-31 1980-10-31 Manufacture of small mesocarbon sphere Granted JPS5777016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153318A JPS5777016A (en) 1980-10-31 1980-10-31 Manufacture of small mesocarbon sphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153318A JPS5777016A (en) 1980-10-31 1980-10-31 Manufacture of small mesocarbon sphere

Publications (2)

Publication Number Publication Date
JPS5777016A true JPS5777016A (en) 1982-05-14
JPS631241B2 JPS631241B2 (en) 1988-01-12

Family

ID=15559867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153318A Granted JPS5777016A (en) 1980-10-31 1980-10-31 Manufacture of small mesocarbon sphere

Country Status (1)

Country Link
JP (1) JPS5777016A (en)

Also Published As

Publication number Publication date
JPS631241B2 (en) 1988-01-12

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