Crystallization seed-containing composition
US4174291A · kind A · utility
11Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1974 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | Jul 8, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/75
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition of matter capable of rapidly reducing free metal ion concentration in an aqueous solution when added thereto containing a material capable of forming a water-insoluble reaction product with said free metal ions and a crystallization seed which provides growth sites for said reaction product so as to cause rapid precipitation of said reaction product. The rapid precipitation of the reaction product has the effect of rapidly reducing the free metal ion concentration of the aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.