Method of making inorganic gold compound
US10046976B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | Jan 25, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Jan 25, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/88
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making the inorganic gold compound, such as tetrachloroauric acid, sodium tetrachloroaurate, potassium tetrachloroaurate, sodium tetracyanoaurate, and potassium tetracyanoaurate, includes the step of: treating gold with a halogen-containing oxidizing agent in a hydrochloric acid to obtain the inorganic gold compound, wherein the halogen-containing oxidizing agent excludes chlorine gas. The method of making the inorganic gold compound is simple, safe, time-effective, cost-effective, and environment-friendly, and has the advantage of high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.