Continuous chemical process for the manufacture of sodium and potassium peroxydisulfate
US3954952A · kind A · utility
2Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1975 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Mar 24, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B15/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of sodium and potassium peroxydisulfates by continuously reacting a 10 to 75 weight percent solution of the corresponding sodium or potassium hydroxide with a 20 to 70 weight percent solution or slurry of ammonium peroxydisulfate, at a temperature between 15.degree. and 45.degree.C and at a pH between 11 and 13. Air or an inert gas is passed through the reaction medium to remove ammonia and the product is recovered by conventional means, preferably by spray drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.