Method for manufacturing refractory grains containing chromium(III) oxide
US9505663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2012 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Mar 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for manufacturing sintered refractory grains containing Cr2CO3 from an initial refractory product including one or more chromium that includes: A) optionally, crushing the starting refractory material; B) grinding a filler, comprising said starting refractory material in a liquid medium to obtain a suspension of particles of said starting refractory material; C) preparing a starting mixture including at least 1 wt % of particles of the suspension obtained during the preceding step; D) shaping the starting mixture into the shape of a preform; E) optionally drying the preform obtained in step D); F) sintering the preform so as to obtain a sintered body; G) optionally grinding the sintered body; and H) the optional selection by particle size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.