Process for production of ultrafine nickel powder
US6500227B1 · kind B1 · utility
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4References
4Claims
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Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for production of ultrafine nickel powder, raw material gas having a partial pressure of nickel chloride vapor within a range from 0.2 to 0.7 is fed into a reducing furnace and the nickel chloride vapor is reduced with hydrogen while flowing the raw material gas in this reducing furnace at a space velocity (SV) within a range from 0.02 to 0.07 sec−1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.