Preparing sulfur solvent compositions comprising treating a sulfide and polyalkyleneoxyamine or polyalkyleneoxypolyamine mixture with an alkylamine or alkanolamine
US5186848A · kind A · utility
2Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1991 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Mar 28, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/932
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for preparing a composition having improved solvent power for sulfur wherein a composition comprising a sulfide having the general formula RSSaSR' wherein R and R' are defined carbon-containing radicals and a is 0 to 3, and a catalyst for improving the ability of said composition to take up sulfur is treated, either before, during or after the addition of said catalyst to said composition, with a primary or secondary amine in an effective amount and for an effective time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.