FLOTATION METHOD OF NOBLE METALS Russian patent published in 2009 - IPC B03D1/00 B03D1/16 

FIELD: mining.

SUBSTANCE: invention relates to field of enrichment of minerals, particularly to foam separation of noble metals and sulfide minerals with associated noble metals from grinned raw materials, and can be used at flotation of sulphide copper-nickel ores and industrial products, and also other ores and products, containing noble metals. Method includes conditioning of grinned pulp at room temperature at presence of additional collector of precious metals, introduction of new collector, foaming agent and extraction of noble metals into foamy product. In the capacity of additional collector it is used thermo-morph polymer, received on the basis of isopropyl-acryl-amide and N-acryl-ksysyccinemide, to molecule of which it is joined functional group, able to formation of durable complex compound with noble metals. Pulp after conditioning with additional collector is heated up to temperature 33-40°C.

EFFECT: increasing of selectivity of extraction of valued components from products into flotation concentrate and reduction of losses of valued components with total tail.

2 cl, 1 tbl, 2 ex