Process for crystallization of mineral salts
US5716419A · kind A · utility
5Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/51
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Mineral salts, e.g., potassium chloride, are crystallized from aqueous solutions thereof in the presence of a crystal growth promoting amount of lecithin or lecithin containing compositions. Mineral salts include alkali metal and alkaline-earth metal chloride, sulfate, carbonate, phosphate and nitrate salts. The process is described as providing increased amounts of large crystals and a narrower and more uniform crystal size distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.