Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1981-03-09
1983-01-11
Yudkoff, Norman
Classifying, separating, and assorting solids
Fluid suspension
Liquid
252 61, B03D 114
Patent
active
043681166
ABSTRACT:
Beneficiation of metallic oxide ores by froth flotation process using polyhydroxy fatty acids collector-frothers in the presence of silica, silicates, and the like gangue minerals to obtain pure concentrates of desired metal values; comprises, adding to a water suspension of finely divided ore material of polyhydroxy fatty acids to collect the metal value, leaving unaffected gangue minerals.
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patent: 3859208 (1975-01-01), Knocke
patent: 3909399 (1975-09-01), Petrovich
patent: 4148720 (1979-04-01), Wang
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