GB454668A - Improvements in the manufacture and production of mercaptans of high molecular weight - Google Patents
Improvements in the manufacture and production of mercaptans of high molecular weightInfo
- Publication number
- GB454668A GB454668A GB1436035A GB1436035A GB454668A GB 454668 A GB454668 A GB 454668A GB 1436035 A GB1436035 A GB 1436035A GB 1436035 A GB1436035 A GB 1436035A GB 454668 A GB454668 A GB 454668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercaptan
- alcohol
- octodecenyl
- molecular weight
- alcohols
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
- C07C319/08—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by replacement of hydroxy groups or etherified or esterified hydroxy groups
Abstract
Mercaptans of high molecular weight are prepared by passing the vapour of saturated or unsaturated aliphatic or cycloaliphatic alcohols containing at least twelve carbon atoms together with hydrogen sulphide over dehydrating catalysts at elevated temperature, preferably 150--450 DEG C. Increased or reduced pressure may be employed and inert gases or vapours, e.g. nitrogen, carbon dioxide or steam, may be present. Catalysts mentioned are the oxides, phosphates, halides, sulphates and sulphides of beryllium, magnesium, calcium, strontium, barium, manganese, cadmium, zinc, copper, nickel, iron, titanium, zirconium, cerium, thorium, lead, phosphorus, vanadium, chromium, molybdenum, tungsten and uranium; surface-active catalysts are also suitable. The products are useful for the manufacture of textile assistants and dyestuffs. Examples describe the preparation of (1) octodecyl mercaptan from octodecyl alcohol using granular zirconium dioxide, or a mixture of zirconium dioxide and pumice meal, or active charcoal which may be activated with phosphoric acid; (2) octodecenyl mercaptan from octodecenyl alcohol using an aluminium oxide catalyst; (3) dodecyl mercaptan from dodecyl alcohol using titanium dioxide; (4) octodecenyl mercaptan from octodecenyl alcohol using the catalyst of (1); decahydro-a -naphthol is similarly converted into the mercaptan; (5) cetyl mercaptan from cetyl alcohol using zirconium oxide; (6) 1-mercapto-octodecylene from octodecane-1 : 12-diol using a bauxite catalyst. The treatment of alcohols obtained by oxidizing paraffin waxes or by hydrogenating the fatty acids of natural glycerides is referred to. Mixtures of the high-molecular alcohols with alcohols of low molecular weight may also be treated, in which case mixtures of mercaptans of high and low molecular weight are obtained. Octodecenyl alcohol is prepared by the partial hydrogenation of oleyl aldehyde.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1436035A GB454668A (en) | 1935-05-16 | 1935-05-16 | Improvements in the manufacture and production of mercaptans of high molecular weight |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1436035A GB454668A (en) | 1935-05-16 | 1935-05-16 | Improvements in the manufacture and production of mercaptans of high molecular weight |
Publications (1)
Publication Number | Publication Date |
---|---|
GB454668A true GB454668A (en) | 1936-10-06 |
Family
ID=10039791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1436035A Expired GB454668A (en) | 1935-05-16 | 1935-05-16 | Improvements in the manufacture and production of mercaptans of high molecular weight |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB454668A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2472470A (en) * | 1945-08-04 | 1949-06-07 | Standard Oil Dev Co | Process for the preparation of mercaptans |
US2950323A (en) * | 1958-04-10 | 1960-08-23 | Pennsalt Chemicals Corp | Mercaptan synthesis |
US3198839A (en) * | 1962-10-05 | 1965-08-03 | Aquitaine Petrole | Process for the preparation of mercaptans |
-
1935
- 1935-05-16 GB GB1436035A patent/GB454668A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2472470A (en) * | 1945-08-04 | 1949-06-07 | Standard Oil Dev Co | Process for the preparation of mercaptans |
US2950323A (en) * | 1958-04-10 | 1960-08-23 | Pennsalt Chemicals Corp | Mercaptan synthesis |
US3198839A (en) * | 1962-10-05 | 1965-08-03 | Aquitaine Petrole | Process for the preparation of mercaptans |
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