Sulfur-containing lignins as magnesium sulfite tri-hydrate dispersants
US4326962A · kind A · utility
7Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1976 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Jul 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to a method for treating an aqueous medium containing magnesium sulfite tri-hydrate under precipitating conditions which method comprises adding to the medium an effective amount for the purpose of a sulfur-containing lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.