Process for producing sodium percarbonate
US4409197A · kind A · utility
11Cited by
11References
4Claims
0Family size
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Key dates
| Filing date | Oct 27, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Oct 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B15/103
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing sodium percarbonate which comprises reacting sodium carbonate with hydrogen peroxide in a working solution of sodium carbonate, hydrogen peroxide and water, said reaction being carried out in the presence of at least one N,N,N',N'-tetra(phosphonomethyl)diaminoalkane of the following formula ##STR1## wherein R is either ##STR2## and n is 0 or 1 to 4, and at least one salt selected from the group consisting of phosphates, silicates and magnesium salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.