GB987777A - Phenol sulphonation process - Google Patents

Phenol sulphonation process

Info

Publication number
GB987777A
GB987777A GB4156362A GB4156362A GB987777A GB 987777 A GB987777 A GB 987777A GB 4156362 A GB4156362 A GB 4156362A GB 4156362 A GB4156362 A GB 4156362A GB 987777 A GB987777 A GB 987777A
Authority
GB
United Kingdom
Prior art keywords
sulphone
phenol
acid
weight
phenolsulphonic acid
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
GB4156362A
Inventor
John Edwin Deakin
Arthur Marshell Spivey
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals 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 Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB4156362A priority Critical patent/GB987777A/en
Priority to DE19631493969 priority patent/DE1493969A1/en
Priority to FR952521A priority patent/FR1372976A/en
Publication of GB987777A publication Critical patent/GB987777A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/30—Electroplating: Baths therefor from solutions of tin
    • C25D3/32—Electroplating: Baths therefor from solutions of tin characterised by the organic bath constituents used
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
    • C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A mixture containing phenolsulphonic acid and at least 5% (based on the weight of phenolsulphonic acid) of dihydroxydiphenyl sulphone is prepared by contacting phenol with a sulphonating agent, preferably at 70-180 DEG C.; if the sulphone content is less than the required minimum a second stage process is effected at an elevated temperature, preferably at 80-200 DEG C., until the minimum sulphone content is attained.ALSO:An aqueous electrolyte for use in electroplating tin or iron or steel contains stannous sulphate and a mixture of phenolsulphonic acid with at least 5%, based on the weight of the sulphonic acid, or dihydroxydiphenylsulphone. An example is given wherein the said per cent of sulphone is 17, 21 or 19.6.
GB4156362A 1962-11-02 1962-11-02 Phenol sulphonation process Expired GB987777A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4156362A GB987777A (en) 1962-11-02 1962-11-02 Phenol sulphonation process
DE19631493969 DE1493969A1 (en) 1962-11-02 1963-10-28 Sulfonation process
FR952521A FR1372976A (en) 1962-11-02 1963-10-31 Sulphonation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4156362A GB987777A (en) 1962-11-02 1962-11-02 Phenol sulphonation process

Publications (1)

Publication Number Publication Date
GB987777A true GB987777A (en) 1965-03-31

Family

ID=10420276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4156362A Expired GB987777A (en) 1962-11-02 1962-11-02 Phenol sulphonation process

Country Status (2)

Country Link
DE (1) DE1493969A1 (en)
GB (1) GB987777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6604703A (en) * 1965-04-10 1966-10-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6604703A (en) * 1965-04-10 1966-10-11

Also Published As

Publication number Publication date
DE1493969A1 (en) 1969-05-14

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