GB987777A - Phenol sulphonation process - Google Patents
Phenol sulphonation processInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6604703A (en) * | 1965-04-10 | 1966-10-11 |
-
1962
- 1962-11-02 GB GB4156362A patent/GB987777A/en not_active Expired
-
1963
- 1963-10-28 DE DE19631493969 patent/DE1493969A1/en active Pending
Cited By (1)
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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