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Title:
PROCESS FOR OBTAINING METALS, AND COMPOUNDS AND ALLOYS THEREOF, FROM ORES
Document Type and Number:
WIPO Patent Application WO/1994/012674
Kind Code:
A1
Abstract:
In the process according to the invention for obtaining metals and compounds and alloys thereof from ore, the charge is prepared by mixing the crushed ore with additives comprising chemical elements found in the ore compounds; oxidized through roasting, the gaseous oxides produced being removed and used; and reduced, the metals and their compounds being subsequently separated out. During preparation of the charge, oxygen-containing compounds of the above-mentioned chemical elements are added to the mixture, the ratio of oxygen to the other elements being between 1:1 and 1:100, the total quantity of additives in the charge being at least 5 per cent. The oxidization is carried out in an oxygen-containing environment at a temperature of 1400-1600 �C, the solid oxides thus obtained then being cooled, crushed and subsequently mixed before undergoing thermal reduction with an appropriate reducing metal, the ratio of metal oxides/alloys to reducing agent being between 1:0.3 and 1:0.7. The reduction is carried out at a temperature of 2000-2300 �C.

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Inventors:
BERENSHTEIN MIKHAIL ALEXANDROV (RU)
MARTYNENKO VYACHESLAV MIKHAILO (RU)
MASLOV VITALY MIKHAILOVICH (RU)
SHTESSEL EMIL ABRAMOVICH (RU)
Application Number:
PCT/RU1993/000140
Publication Date:
June 09, 1994
Filing Date:
June 23, 1993
Export Citation:
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Assignee:
BERENSHTEIN MIKHAIL ALEXANDROV (RU)
MARTYNENKO VYACHESLAV MIKHAILO (RU)
MASLOV VITALY MIKHAILOVICH (RU)
SHTESSEL EMIL ABRAMOVICH (RU)
International Classes:
C22B1/02; C22B1/04; C22B5/04; (IPC1-7): C22B1/04; C22B5/04
Domestic Patent References:
WO1981000418A11981-02-19
Foreign References:
SU258588A1
SU37849A11934-07-31
SU1002378A11983-03-07
SU1668439A11991-08-07
SU443083A11974-09-15
SU954468A11982-08-30
SU380727A11973-05-15
SU360384A1
SU12091A11929-12-31
SU697585A11979-11-15
SU615702A11989-08-07
GB1475781A1977-06-10
GB2048309A1980-12-10
DE2000085B21980-04-17
DE3303097A11983-09-08
DE2839794B21980-08-14
US4047942A1977-09-13
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