FIELD: manufacture of powders of highly purified refractory metals, valve sub-oxides of refractory metals and valve metals or their alloys suitable for making large number of electric, optical and rolled articles/parts.
SUBSTANCE: above mentioned electric, optical and rolled parts are produced from their respective oxides by thermal reduction in solid or liquid oxides with use of reducing agent which sustains after inflammation highly exothermic reaction preferably realized at continuous or cyclic feed of oxide, for example moved by gravity action. Method comprises steps of collecting metal in receptacle; removing oxide of reducing metal in the form of gas or in other suitable state and removing non-reacted derivatives of reducing agent by leaching or by other similar processes.
EFFECT: enhanced efficiency, continuous controlled process for producing powders of refractory metals with improved morphology and high purity.
32 cl, 10 dwg, 8 tbl, 16 ex
| Title | Year | Author | Number |
|---|---|---|---|
| REMOVAL OF MAGNESIUM FROM POWDERS RECOVERED BY MAGNESIUM | 2005 |
|
RU2406593C2 |
| METALLOTHERMIC REDUCTION OF REFRACTORY METAL OXIDES | 2005 |
|
RU2404880C2 |
| METALLIC POWDERS PRODUCED BY REDUCING OXIDES BY MEANS OF GASEOUS MAGNESIUM | 1999 |
|
RU2230629C2 |
| PROCEDURE FOR PRODUCTION OF PRIMARY REFRACTORY METAL (VERSIONS) | 2006 |
|
RU2415957C2 |
| PROCEDURE FOR PRODUCTION OF POWDER OF HIGH-MELTING METAL | 2009 |
|
RU2401888C1 |
| PROCEDURE FOR COATING SURFACE OF SUBSTRATE AND PRODUCT WITH APPLIED COATING | 2006 |
|
RU2434073C9 |
| NANOSTRUCTURES CONSISTING OF GATE METALS AND GATE METAL SUB OXIDES AND METHODS OF THEIR PRODUCTION | 2008 |
|
RU2493939C2 |
| METHOD OF PRODUCING TANTALUM ALLOYS | 2014 |
|
RU2677399C2 |
| METHOD OF APPLYING COATING ON SUBSTRATE SURFACE AND COATED PRODUCT | 2007 |
|
RU2469126C2 |
| OBTAINING HIGH-PURITY NIOBIUM MONOXIDE AND MANUFACTURING OF CAPACITOR OUT OF IT | 2004 |
|
RU2346891C2 |
