Process for preparing bismuth compounds
US5904766A · kind A · utility
0Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a process for preparing a bismuth compound at a heat treatment temperature lower than conventional. A bismuth compound is prepared by the steps of heating under vacuum to form a reduced phase and heating under oxidizing environment of normal or lower pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.