Use of thiouracils as selective depressants for the...

Details Use of thiouracils as selective depressants for the... Use of thiouracils as selective depressants for the...

B - Operations, Transporting

03

D

361/4

B03D 1/02 (2006.01) B03B 1/04 (2006.01) B03D 1/00 (2006.01) C11D 7/32 (2006.01) C11D 7/34 (2006.01) C22B 23/00 (2006.01)

Patent

CA 1096514

CIL 580 ABSTRACT FOR THE DISCLOSURE A process is disclosed for separating nickel sulphide minerals from copper sulphide minerals with which they are associated in a metallurgical concentrate through use, as nickel sulphide depressant, 2-thiouracil or 6- methyl-2-thiouracil. As compared with conventionally used sodium cyanide, the new proposed depressants provide equal or superior metallurgy, are less pH dependent and allow greater flexibility in floatation circuit conditions.

315616

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