Manufacture of potassium sulfate
US3998935A · kind A · utility
22Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1975 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Jan 30, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D5/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Potassium sulfate (K.sub.2 SO.sub.4) is prepared by contacting potassium chloride with an aqueous solution containing potassium bisulfate at a temperature of about 65.degree.-110.degree. C., cooling the solution and permitting the potassium sulfate to crystallize from solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.