Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group viib metal
Patent
1993-08-30
1996-03-05
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group viib metal
423DIG4, 423594, 75749, 209 11, 209 39, 241 23, C22B 4700, C22B 100, C01G 4900, B03C 130
Patent
active
054965268
ABSTRACT:
A process for producing intermediate grade manganese concentrate from low grade manganiferous ores is disclosed. A low grade manganiferous ore containing silicon, iron, between 1 and 20 per cent manganese and oxides of silicon, iron and manganese is first crushed to reduce the size of the manganiferous ore to a fraction of its original size. The crushed manganiferous ore is then heated to a temperature sufficient to chemically transform the manganese and iron in the manganiferous ore to an artificial magnetic, manganese-iron spinel. The heat treated manganiferous ore is cooled, preferably by air, and then beneficiated by further crushing and grinding to liberate the artificial manganese iron spinel from the silicon and other oxides within the ore. Finally, the artificial manganese-iron spinel is magnetically separated from the silicon and other oxides within the ore to increase the concentration of the manganese and thereby provide an intermediate grade manganese concentrate.
REFERENCES:
patent: 1710522 (1929-04-01), Trumbo et al.
patent: 1937039 (1933-11-01), Johnston et al.
patent: 1939119 (1933-12-01), Holt et al.
patent: 2038399 (1936-04-01), Westby
patent: 2191819 (1940-02-01), Albin
patent: 2468586 (1949-04-01), Braund
patent: 2990124 (1961-06-01), Cavanagh et al.
patent: 3037856 (1962-06-01), Udy
patent: 3502271 (1970-03-01), Hays
patent: 3864118 (1975-02-01), Schumacher
patent: 5190740 (1993-03-01), Narutani et al.
Richards, R. H., et al, Textbook of Ore Dressing, 1940, pp. 300-303.
Nigro John C.
Pojar Michael G.
Bos Steven
Koltos E. Philip
The United States of America as represented by the Secretary of
LandOfFree
Production of intermediate grade manganese concentrate from low does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of intermediate grade manganese concentrate from low , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of intermediate grade manganese concentrate from low will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1411072