Method for making silver powder by aerosol decomposition
US5439502A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 8, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Apr 8, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F9/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for the manufacture of finely divided silver particles comprising the sequential steps: PA1 A. Forming an unsaturated solution of thermally decomposable silver-containing compound in a volatilizable solvent; PA1 B. Forming an aerosol from the unsaturated solution and a carrier gas; PA1 C. Heating the aerosol to a temperature above the decomposition temperature of the silver compound, but below the melting point of silver metal by which the silver compound is decomposed to form finely divided particles of pure densified silver; and PA1 D. Separating the precipitated silver particles from the carrier gas, reaction by-products and solvent voltilization products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.