Method for treating aqueous mediums
US4136152A · kind A · utility
3Cited by
5References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1976 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Aug 30, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is disclosed for treating an aqueous medium containing magnesium sulfite tri-hydrate under precipitating conditions comprising adding in combination to the aqueous medium an effective amount for the purpose of an oligomer and a sulfur-containing lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.