Process of manufacturing high-concentration olefin sulfonate solution
US4139498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1976 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Dec 16, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C309/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process of manufacturing C.sub.10 -C.sub.20 .alpha.-olefin sulfonate solution of high concentration, which comprises subjecting .alpha.-olefin sulfonates having 10-20 carbon atoms to neutralization and hydrolysis in the presence of (a) an alkaline material equivalent to the sum (A+B) of an amount of alkali (A) necessary for performing neutralization and hydrolysis of said sulfonates stoichiometrically and an amount of alkali (B) equivalent to 0.2-1.5 times as much as said amount of alkali (A) by weight, (b) an alkylene oxide derivative and/or a polyvinyl alcohol equivalent to 0.2-2 times as much as said amount of alkali (B) by weight, and (c) water necessary for making the water content of the neutralization-hydrolysis product less than 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.