GB988306A - Increasing the yield of paradichlorbenzene and 1,2,4,5-tetrachlorobenzene - Google Patents

Increasing the yield of paradichlorbenzene and 1,2,4,5-tetrachlorobenzene

Info

Publication number
GB988306A
GB988306A GB2488863A GB2488863A GB988306A GB 988306 A GB988306 A GB 988306A GB 2488863 A GB2488863 A GB 2488863A GB 2488863 A GB2488863 A GB 2488863A GB 988306 A GB988306 A GB 988306A
Authority
GB
United Kingdom
Prior art keywords
sulphur
benzene
s2cl2
tetrachloro
isomer
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
GB2488863A
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.)
Hooker Chemical Corp
Original Assignee
Hooker Chemical 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 Hooker Chemical Corp filed Critical Hooker Chemical Corp
Publication of GB988306A publication Critical patent/GB988306A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds

Landscapes

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

Abstract

In a process of chlorinating benzene or a chloro-substituted benzene to the dichloro or tetrachloro stage by treating the benzene or chloro-substituted benzene with chlorine in the presence of a metal chloride catalyst, a source of sulphur is added to the starting material, whereby an increase in the amount of the paradichloro isomer or of the 1,2,4,5-tetrachloro isomer, respectively, is obtained. The source of sulphur may be elemental sulphur, sulphur monochloride (S2Cl2), or sulphur dichloride (SCl2) and it is preferably used in an amount not more than 0.015 mole per cent S as S2Cl2 or equivalent when using sulphur free feed stock. The metal chloride may be ferric or aluminium. Many examples are given.
GB2488863A 1962-07-05 1963-06-21 Increasing the yield of paradichlorbenzene and 1,2,4,5-tetrachlorobenzene Expired GB988306A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20780962A 1962-07-05 1962-07-05
US20781062A 1962-07-05 1962-07-05

Publications (1)

Publication Number Publication Date
GB988306A true GB988306A (en) 1965-04-07

Family

ID=26902612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2488863A Expired GB988306A (en) 1962-07-05 1963-06-21 Increasing the yield of paradichlorbenzene and 1,2,4,5-tetrachlorobenzene

Country Status (4)

Country Link
BE (1) BE666459A (en)
DE (1) DE1468004A1 (en)
GB (1) GB988306A (en)
NL (1) NL294755A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692850A (en) * 1970-07-31 1972-09-19 Tenneco Chem Process for the production of 2,4,5-trichlorotoluene
US3760014A (en) * 1968-06-07 1973-09-18 Hixon Martin J Chlorination of hydrocarbons
EP0829461A1 (en) * 1996-09-09 1998-03-18 Occidental Chemical Corporation Selective production of 1,4-dichloro-benzene and 1,2,4-trichlorobenzene

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538565A1 (en) * 1985-10-30 1987-05-07 Bayer Ag METHOD FOR REMOVING M-DICHLORBENZENE FROM DICHLORBENE MIXTURES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760014A (en) * 1968-06-07 1973-09-18 Hixon Martin J Chlorination of hydrocarbons
US3692850A (en) * 1970-07-31 1972-09-19 Tenneco Chem Process for the production of 2,4,5-trichlorotoluene
EP0829461A1 (en) * 1996-09-09 1998-03-18 Occidental Chemical Corporation Selective production of 1,4-dichloro-benzene and 1,2,4-trichlorobenzene

Also Published As

Publication number Publication date
NL294755A (en)
BE666459A (en) 1965-11-03
DE1468004A1 (en) 1968-12-12

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