Process for the elimination of hydrogen sulfide by using water-in-oil emulsions
US5284635A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1993 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Jan 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the removal of hydrogen sulfide present in a composition comprising treating the composition with a water-in-oil emulsion wherein said water-in-oil emulsion containing by weight about: 20 to 80% of a dispersed aqueous phase containing about 20 to 70% of one or more aldehydes chosen from the group constituted by formaldehyde, glyoxal, glutaraldehyde, glycolaldehyde or glyoxylic acid and 80 to 30% of an aqueous solution containing 90 to 100% water and 10 to 0% of a buffer agent pH=5.5.+-.1.5; and 80 to 20% of a continuous oil phase containing about 90 to 99% of one or more saturated and liquid C.sub.6 -C.sub.16 hydrocarbons, and 10 to 1% of an emulsifying system constituted by one or more water-in-oil emulsifying agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.