Method for production of bismuth (III) oxide
US4873073A · kind A · utility
11Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Mar 7, 1989 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Mar 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/62
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Minute spherical bismuth (III) oxide particles are produced by adding a monocarboxylic acid to an aqueous solution containing trivalent bismuth ions thereby inducing formation of a bismuth-monocarboxylic acid complex in the aqueous solution, further adding an alkali to the aqueous solution thereby inducing precipitation of the complex, separating the precipitated complex from the solution, and firing the separated complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.