GB1437077A - Process for upgrading coal tar materials - Google Patents

Process for upgrading coal tar materials

Info

Publication number
GB1437077A
GB1437077A GB3892972A GB3892972A GB1437077A GB 1437077 A GB1437077 A GB 1437077A GB 3892972 A GB3892972 A GB 3892972A GB 3892972 A GB3892972 A GB 3892972A GB 1437077 A GB1437077 A GB 1437077A
Authority
GB
United Kingdom
Prior art keywords
coal tar
shear
aug
conducted
rate
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
GB3892972A
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.)
British Steel Corp
Original Assignee
British Steel 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 British Steel Corp filed Critical British Steel Corp
Priority to GB3892972A priority Critical patent/GB1437077A/en
Priority to DE19732341702 priority patent/DE2341702A1/en
Publication of GB1437077A publication Critical patent/GB1437077A/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
    • C10C1/20—Refining by chemical means inorganic or organic compounds

Landscapes

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

Abstract

1437077 Coal tar of increased viscosity BRITISH STEEL CORP (CHEMICALS) Ltd 17 Aug 1973 [21 Aug 1972] 38929/72 Heading C5E The viscosity of coal tar material is increased by subjecting the material to shear in an oxidizing atmosphere. The process may be conducted at 140‹ to 277‹ C. The material may be crude or refined coal tar, oils and pitches, such as the coal tar fractions naphthalene oil, wash oil, anthracene or heavy oil. The process may be conducted using coal tar pitch at 140‹ to 190‹ C. with the oxidizing atmosphere produced by flowing atmospheric air over the pitch at the rate of 1100 to 2300 mls. per kg per minute. Heat is removed during the process to prevent undesirable distillation and the shear may be applied by a shearing head comprising a rotor and shearing ring, the rate of shear being above 18,000 sec<SP>-1</SP>.
GB3892972A 1972-08-21 1972-08-21 Process for upgrading coal tar materials Expired GB1437077A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3892972A GB1437077A (en) 1972-08-21 1972-08-21 Process for upgrading coal tar materials
DE19732341702 DE2341702A1 (en) 1972-08-21 1973-08-17 METHOD OF CONVERTING COAL TEAR INTO MORE COMPLEX PRODUCTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3892972A GB1437077A (en) 1972-08-21 1972-08-21 Process for upgrading coal tar materials

Publications (1)

Publication Number Publication Date
GB1437077A true GB1437077A (en) 1976-05-26

Family

ID=10406552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3892972A Expired GB1437077A (en) 1972-08-21 1972-08-21 Process for upgrading coal tar materials

Country Status (2)

Country Link
DE (1) DE2341702A1 (en)
GB (1) GB1437077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295946A (en) * 2010-06-28 2011-12-28 上海宝钢化工有限公司 Tar modifying method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664774A (en) * 1984-07-06 1987-05-12 Allied Corporation Low solids content, coal tar based impregnating pitch
CN102504852B (en) * 2011-11-03 2014-01-22 中润天海（北京）环保科技有限公司 Improved Litwin coal tar processing technic
CN104726122B (en) * 2015-04-09 2017-01-18 河南开炭新材料有限公司 Technology for producing modified pitch by one-step heating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295946A (en) * 2010-06-28 2011-12-28 上海宝钢化工有限公司 Tar modifying method
CN102295946B (en) * 2010-06-28 2013-05-08 上海宝钢化工有限公司 Tar modifying method

Also Published As

Publication number Publication date
DE2341702A1 (en) 1974-02-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees