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GB917921A - Improvements in or relating to a process for the manufacture of mercaptans - Google Patents

Improvements in or relating to a process for the manufacture of mercaptans

Info

Publication number
GB917921A
GB917921A GB1760758A GB1760758A GB917921A GB 917921 A GB917921 A GB 917921A GB 1760758 A GB1760758 A GB 1760758A GB 1760758 A GB1760758 A GB 1760758A GB 917921 A GB917921 A GB 917921A
Authority
GB
United Kingdom
Prior art keywords
mercaptan
lauryl
alcohol
acid
effected
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
GB1760758A
Inventor
Harold Coates
Peter Albert Theodore Hoye
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.)
Albright and Wilson Mfg Ltd
Original Assignee
Albright and Wilson Mfg 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 Albright and Wilson Mfg Ltd filed Critical Albright and Wilson Mfg Ltd
Priority to GB1760758A priority Critical patent/GB917921A/en
Publication of GB917921A publication Critical patent/GB917921A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/06Phosphorus compounds without P—C bonds
    • C07F9/16Esters of thiophosphoric acids or thiophosphorous acids
    • C07F9/165Esters of thiophosphoric acids
    • C07F9/17Esters of thiophosphoric acids with hydroxyalkyl compounds without further substituents on alkyl
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/02Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alkyl mercaptans are prepared by heating an inorganic salt of a dialkyl dithiophosphoric acid containing two alkyl-oxygen-phosphorus linkages to effect an isomerisation to produce a salt of a dialkyldithiophosphoric acid containing two alkyl-sulphur-phosphorus linkages, which is thereafter hydrolysed to liberate a free mercaptan. The dialkyldithiophosphoric acid salts used as starting materials are prepared by reacting an alkanol with P2S5, the alcohol preferably being a primary alcohol, and then reacting the resulting dialkyl dithiophosphoric acid with an alkali metal, alkaline earth metal or inorganic base, desirably using sodium sulphide in the presence of an antifoaming agent. The isomerisation is suitably effected in an inert organic polar solvent, e.g. a phenol. The hydrolysis may be effected by heating with aqueous mineral acid. Examples describe the conversion of (1) lauryl alcohol to lauryl mercaptan and a mixture of lauryl thioether and dilauryl disulphide, which mixture is reduced with zinc and acid to yield more lauryl mercaptan; (7) butanol to butyl mercaptan; (8) isooctanol to isooctyl mercaptan and (9) cetyl alcohol to cetyl mercaptan, the isomerisations being effected at temperatures ranging from 138 DEG to 220 DEG C.
GB1760758A 1958-06-02 1958-06-02 Improvements in or relating to a process for the manufacture of mercaptans Expired GB917921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1760758A GB917921A (en) 1958-06-02 1958-06-02 Improvements in or relating to a process for the manufacture of mercaptans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1760758A GB917921A (en) 1958-06-02 1958-06-02 Improvements in or relating to a process for the manufacture of mercaptans

Publications (1)

Publication Number Publication Date
GB917921A true GB917921A (en) 1963-02-13

Family

ID=10098107

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1760758A Expired GB917921A (en) 1958-06-02 1958-06-02 Improvements in or relating to a process for the manufacture of mercaptans

Country Status (1)

Country Link
GB (1) GB917921A (en)

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