Process for producing directly esterified fatty acyl isethionate by a mixed zinc oxide-sulfonic acid catalyst
US4405526A · kind A · utility
17Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C303/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention discloses a method of producing directly esterified fatty acyl isethionate having a yellowness index less than about 6.0, which consists essentially of reacting a fatty acid with an alkali metal isethionate in the presence of a catalyst comprising a mixture of ZnO and an organic sulfonic acid wherein the molar ratio of ZnO to organic solfonic acid is about 1:1.7 or less and heating at about 200.degree. C. to about 255.degree. C. for sufficient time to produce the desired directly esterified fatty acyl isethionate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.