Gas feeder for sulfonation apparatus
US4072470A · kind A · utility
15Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1977 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Mar 23, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J4/001
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A sulfonation apparatus comprising a gas feeder for feeding a first stream of SO.sub.3 -containing gas and a second stream of inert gas into contact with an annular film of sulfonatable material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.