Sulfonating method
US4185030A · kind A · utility
0Cited by
5References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1977 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Nov 10, 1997 |
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.