USE OF AN EMULSIFIER IN A FLOATATION AGENT COMPOSITION Russian patent published in 2019 - IPC B03D1/08 B03D1/02 

FIELD: technological processes.

SUBSTANCE: disclosed group of inventions relates to use of emulsifiers in compositions of secondary floatation agents containing a branched alcohol and / or alkoxylate, and to use of such compositions for froth flotation of non-sulphide ores, especially phosphate ores, in combination with a primary floatation agent which is an anionic or amphoteric surface-active compound. Use of the mixture as a secondary floatation agent in the non-sulphide ore foam flotation in combination with a primary floatation agent selected from a group of amphoteric and anionic surface-active compounds, where the mixture contains at least one compound (i), selected from a group of alkoxylates of branched fatty alcohols with 12–16 carbon atoms, having a branching degree of 1–3.5, with an ethoxylation degree of up to 4 and at least one compound (ii) selected from a group of alkoxylates of non-ionic hydrocarbon compounds with a degree of ethoxylation higher than 3. If both compounds (i) and (ii) are ethoxylated alcohols, the mixture has a bimodal distribution of the degree of ethoxylation.

EFFECT: higher efficiency of froth flotation.

13 cl, 2 tbl, 2 dwg