Method for preparing a powder in a plasma arc and device for carrying out said method
US5723027A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | May 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J19/088
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the continuous preparation of a powder by reacting at least two reagents in a plasma arc, in which a first and a second reagent are fed to the plasma arc, which is maintained by a voltage applied between a first and a second electrode. At least the first reagent is electrically conductive and comprises the first electrode. The first reagent is fed to the plasma arc in a fluid form. A device for carrying out the method is provided. The device includes a parabolic shaped plasma chamber, a means for feeding at least the first reagent to the plasma chamber, and at least two electrodes for generating a plasma arc in the plasma chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.