Method and device for preparing sulphonic acids derived from paraffinic hydrocarbons
US4000049A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1974 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Sep 18, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S204/903
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The instant invention relates to a method for preparing paraffin-sulphonic acids by photochemical sulphoxidation of paraffinic hydrocarbons. The invention also relates to a device for carrying out this method. The invention relates more particlarly to a method for continuously preparing paraffin-sulphonic acids by photochemical sulphoxidation of paraffinic hydrocarbons comprising the steps of reacting a gaseous mixture of sulphurous acid anhydride and oxygen with a liquid paraffiaic phase and injecting at least a portion of said gaseous mixture into said liquid phase in the form of a finely divided dispersion in a recycling fraction of said paraffinic phase which carries said gaseous mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.