Separation of chromite from metalliferous ores

Details Separation of chromite from metalliferous ores Separation of chromite from metalliferous ores

C - Chemistry, Metallurgy

22

B

53/14, 53/347

C22B 5/00 (2006.01) C22B 1/00 (2006.01) C22B 1/02 (2006.01) C22B 34/12 (2006.01) C22B 34/32 (2006.01)

Patent

CA 2001371

ABSTRACT The invention comprises a process for reducing the chromite content of metalliferous ores which involves four basic steps. These are as follows: (i) contacting the ore with a reducing agent at elevated temperature; (ii) cooling the product of step (i); (iii) leaching, aerating, or oxidatively roasting the cooled product; (iv) separating chromite rich fractions from the product of step (iii).

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