PHOSPHATE ORE PROCESSING METHOD Russian patent published in 2020 - IPC B03D1/08 B03D1/01 B03D1/12 

FIELD: chemistry.

SUBSTANCE: disclosed group of inventions relates to a method of treating non-sulphide ores, such as phosphate ores. Method for treatment of non-sulphide ores by composition of collector, containing primary and secondary collectors, containing between 3 and 60 % of secondary collector and between 40 and 97 % of primary collector, wt. % are based on total weight of components of collector. Primary collector is selected from a group of amphoteric and anionic surface-active compounds. Secondary collector is an ethoxylated fatty acid, where the average degree of ethoxylation is more than 0 and less than 2. Method of direct flotation of non-sulphide ores involves the following stages: a) ore pulp conditioning, where the ore contains a non-sulphide mineral, such as phosphate, and optionally additions to the float bath, in an aqueous solution; b) adding a collector composition containing a primary and a secondary collector containing between 3 and 60 % secondary collector and between 40 and 97 % primary collector, wt. % based on total weight of components of collector; b) optionally adding other additions to the floatation bath or depressants to the pulp and c) performing the froth flotation process in order to extract the mineral raw material.

EFFECT: technical result is higher efficiency of flotation process, as well as high extraction of valuable product contained in ore.

9 cl, 6 tbl, 5 ex, 1 dwg