Sulfonating method
US4267119A · kind A · utility
0Cited by
7References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 21, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic reactant is sulfonated by injecting it into a stream of gas comprising sulfur trioxide, at a venturi, and the resulting reaction mixture is quenched with a stream of cooled, recycled reaction product immediately downstream of the venturi in a conduit in which particles of reaction mixture are agglomerated into a film of the recycle stream and in which additional sulfonation reaction occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.