GB480886A - Improvements relating to the preparation of alkyl sulphates - Google Patents
Improvements relating to the preparation of alkyl sulphatesInfo
- Publication number
- GB480886A GB480886A GB28307/36A GB2830736A GB480886A GB 480886 A GB480886 A GB 480886A GB 28307/36 A GB28307/36 A GB 28307/36A GB 2830736 A GB2830736 A GB 2830736A GB 480886 A GB480886 A GB 480886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohols
- sulphates
- neutralization
- effected
- petroleum naphtha
- 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
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/24—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfuric acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Monohydric aliphatic secondary or tertiary alcohols having a chain of 8-25 carbon atoms are converted into sulphates by treating with concentrated chlorsulphonic acid at a temperature below 0 DEG C. The alcohols may be those prepared by limited oxidation of paraffin or naphthenic hydrocarbons, e.g. paraffin wax, or petrolatum, and the neutralization of the sulphates may be effected while cooling. In an example, the unsaponified fraction obtained from an oxidized petrolatum is extracted with methyl alcohol, and the resulting ketones and aldehydes in the extract, hydrogenated. The mixture of alcohols so produced is dissolved in petroleum naphtha and treated with chlorsulphonic acid at 0 DEG C. After neutralization, the unsulphonated material is removed by means of petroleum naphtha, the residue mixed with trisodiumphosphate to prevent decomposition and evaporated to dryness. The sulphonation may be effected in the presence of halogenated hydrocarbons. Specification 435,385 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US480886XA | 1935-11-29 | 1935-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480886A true GB480886A (en) | 1938-03-02 |
Family
ID=21952668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28307/36A Expired GB480886A (en) | 1935-11-29 | 1936-10-17 | Improvements relating to the preparation of alkyl sulphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB480886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767428C (en) * | 1940-12-12 | 1952-08-07 | Maerkische Seifen Ind | Process for the preparation of sulfonates of secondary alcohols |
-
1936
- 1936-10-17 GB GB28307/36A patent/GB480886A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767428C (en) * | 1940-12-12 | 1952-08-07 | Maerkische Seifen Ind | Process for the preparation of sulfonates of secondary alcohols |
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