GB1420191A - Purification of anthraquinone suophonic acids - Google Patents

Purification of anthraquinone suophonic acids

Info

Publication number
GB1420191A
GB1420191A GB5064071A GB5064071A GB1420191A GB 1420191 A GB1420191 A GB 1420191A GB 5064071 A GB5064071 A GB 5064071A GB 5064071 A GB5064071 A GB 5064071A GB 1420191 A GB1420191 A GB 1420191A
Authority
GB
United Kingdom
Prior art keywords
anthraquinone
purification
suophonic
acids
sulphide
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
GB5064071A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5064071A priority Critical patent/GB1420191A/en
Publication of GB1420191A publication Critical patent/GB1420191A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/33—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems
    • C07C309/38—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems formed by at least three rings

Landscapes

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

Abstract

1420191 Purification of anthraquinone sulphonic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Jan 1973 [1 Nov 1971] 50640/71 Heading C2C Anthraquinone sulphonic acids obtained by a mercury catalysed sulphonation of anthraquinone are purified by diluting the reaction product mixture with water, adding di-(#- mereaptoethyl) sulphide, and isolating the insoluble Hg complex of di-(#-mercaptoethyl)- sulphide. Oleum is specified as a sulphonating agent. Examples are given which illustrate the process. Reference has been directed by the Comptroller to Specification 1,370,413.
GB5064071A 1971-11-01 1971-11-01 Purification of anthraquinone suophonic acids Expired GB1420191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5064071A GB1420191A (en) 1971-11-01 1971-11-01 Purification of anthraquinone suophonic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5064071A GB1420191A (en) 1971-11-01 1971-11-01 Purification of anthraquinone suophonic acids

Publications (1)

Publication Number Publication Date
GB1420191A true GB1420191A (en) 1976-01-07

Family

ID=10456733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5064071A Expired GB1420191A (en) 1971-11-01 1971-11-01 Purification of anthraquinone suophonic acids

Country Status (1)

Country Link
GB (1) GB1420191A (en)

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Legal Events

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