GB1452548A - Production of pitch substantially soluble in quinoline - Google Patents

Production of pitch substantially soluble in quinoline

Info

Publication number
GB1452548A
GB1452548A GB2256674A GB2256674A GB1452548A GB 1452548 A GB1452548 A GB 1452548A GB 2256674 A GB2256674 A GB 2256674A GB 2256674 A GB2256674 A GB 2256674A GB 1452548 A GB1452548 A GB 1452548A
Authority
GB
United Kingdom
Prior art keywords
pitch
pressure
oil fraction
heat treatment
heavy
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.)
Expired
Application number
GB2256674A
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.)
Domtar Inc
Original Assignee
Domtar Inc
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 Domtar Inc filed Critical Domtar Inc
Publication of GB1452548A publication Critical patent/GB1452548A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/04—Working-up tar by distillation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/19—Working-up tar by thermal treatment not involving distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

1452548 Pitch DOMTAR Ltd 21 May 1974 [22 May 1973] 22566/74 Heading C5E A pitch is produced from a heavy oil fraction having at least 90% of its constituents boiling above 300‹ C., of a coal tar distillate by heat treatment at between 400‹ and 470‹ C. under pressure, the pitch having a content insoluble in dimethyl formamide of 10 to 30%, insoluble in quinoline not greater than 2%. Upon coking the coke has a preferred orientation ratio greater than 80. The pitch is produced by distilling a coal tar material under atmospheric or subatmospheric pressure to produce a pitch and distillate oil, separating the heavy creosote oil fraction from the distillate oil and subjecting the creosote oil fraction to the heat treatment. The heat treatment is carried out at between 15 and 500 p.s.i.g. pressure for between 1 and 24 hours, in a closed vessel under autogenous pressure or the heavy creosote oil fraction may be passed continuously through a heating zone under pressure and the desired pitch continuously withdrawn.
GB2256674A 1973-05-22 1974-05-21 Production of pitch substantially soluble in quinoline Expired GB1452548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA171,941A CA1001976A (en) 1973-05-22 1973-05-22 Production of pitch substantially soluble in quinoline

Publications (1)

Publication Number Publication Date
GB1452548A true GB1452548A (en) 1976-10-13

Family

ID=4096793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2256674A Expired GB1452548A (en) 1973-05-22 1974-05-21 Production of pitch substantially soluble in quinoline

Country Status (2)

Country Link
CA (1) CA1001976A (en)
GB (1) GB1452548A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317809A (en) * 1979-10-22 1982-03-02 Union Carbide Corporation Carbon fiber production using high pressure treatment of a precursor material
EP2363446A3 (en) * 2001-05-11 2013-05-15 Koppers Delaware, Inc. Mesophase pitch and preparation from quinoline insoluble free coal tar pitch distillate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405524A (en) * 1993-10-29 1995-04-11 Alliedsignal Inc. Process for the catalytic conversion of low molecular weight aromatic hydrocarbons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317809A (en) * 1979-10-22 1982-03-02 Union Carbide Corporation Carbon fiber production using high pressure treatment of a precursor material
EP2363446A3 (en) * 2001-05-11 2013-05-15 Koppers Delaware, Inc. Mesophase pitch and preparation from quinoline insoluble free coal tar pitch distillate

Also Published As

Publication number Publication date
CA1001976A (en) 1976-12-21

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940520