Method for removing contaminants from boron powder
US8409537B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B35/023
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for removing an organic contaminant from contaminated boron powder are provided. One method includes providing a contaminated boron powder, the boron powder being comingled with an organic contaminant. The method also includes placing the contaminated boron powder and the organic contaminant comingled therewith onto an inert container. The method includes placing the inert container, the contaminated boron powder, and the organic contaminant comingled therewith, into an enclosed space. A heat source is provided in the enclosed space. The method also includes heating the contaminated boron powder and the organic contaminant comingled therewith to an elevated temperature. The method includes altering the organic contaminant so as to reduce the amount of the organic contaminant comingled with the boron powder. Another method includes reducing the amount of the organic contaminant comingled with the boron powder to not more than about 0.1 weight percent of soluble residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.