GB957065A - Process for the production of terphenyl - Google Patents

Process for the production of terphenyl

Info

Publication number
GB957065A
GB957065A GB2638761A GB2638761A GB957065A GB 957065 A GB957065 A GB 957065A GB 2638761 A GB2638761 A GB 2638761A GB 2638761 A GB2638761 A GB 2638761A GB 957065 A GB957065 A GB 957065A
Authority
GB
United Kingdom
Prior art keywords
terphenyls
benzene
pyrolysis
sulphur
diphenyl
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
GB2638761A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB957065A publication Critical patent/GB957065A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Terphenyls are obtained by the pyrolysis of benzene and recycled benzene diphenyl and polyphenyls higher than terphenyls, at 750-850 DEG C., the feed having a weight ratio of benzene to diphenyl being 2-4 : 1 and the weight ratio of higher polyphenyls to diphenye being 0.2-1 : 1. The pyrolysis is effected for a time of 0.1-25 seconds at normal pressure. Tube furnaces may be used or a moving heat carrier. 0.1-1% of sulphur in the form of sulphur, hydrogen sulphide or carbon disulphide may be added to reduce corrosion of steel surfaces. The terphenyls separated by fractional condensation or distillation contain about 10% ortho, 60% meta and 30% para isomer. Specification 865,302 is referred to.
GB2638761A 1960-07-22 1961-07-20 Process for the production of terphenyl Expired GB957065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0031735 1960-07-22

Publications (1)

Publication Number Publication Date
GB957065A true GB957065A (en) 1964-05-06

Family

ID=7094334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2638761A Expired GB957065A (en) 1960-07-22 1961-07-20 Process for the production of terphenyl

Country Status (1)

Country Link
GB (1) GB957065A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113636908A (en) * 2021-08-13 2021-11-12 涉县津东经贸有限责任公司 Terphenyl composition and preparation method thereof
CN114149299A (en) * 2021-12-08 2022-03-08 涉县津东经贸有限责任公司 Preparation method of biphenyl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113636908A (en) * 2021-08-13 2021-11-12 涉县津东经贸有限责任公司 Terphenyl composition and preparation method thereof
CN114149299A (en) * 2021-12-08 2022-03-08 涉县津东经贸有限责任公司 Preparation method of biphenyl

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