Method for producing pyrophosphate
US9315473B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B25/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A producing method of a high-purity pyrophosphate comprising a calcination of the orthophosphate under the condition of 120° C.-350° C.; and a producing method suitable for manufacturing effectively the high-purity melamine pyrophosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.