US 2026/0021492 A1Published application

Method of flotation separation for copper-sulfur polymetallic ore

AssigneesJiangxi Copper Company Limited, Jiangxi Copper (Dexing) Industrial Co., Ltd.

InventorsZhiqiang GENG, Rixin LIU, Zhaoyu ZHOU, Wu XIE, Wenhui ZHONG, Shuanglong CHENG, Jie XU, Miao CHEN, Ming DONG, Ke XIAO

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Abstract

Method of flotation separation for copper-sulfur polymetallic ore includes: S1, an ore grinding treatment is carried out on a raw ore to obtain a ground ore material with the exposure ratio of 112, 204, 312 facets of chalcopyrite of 55%-65%, 5%-18%, and 3%-10% respectively, and the exposure ratio of 100 facet of pyrite of 60%-80%; S2, the ground ore material, the collector A, the depressant B and the frother are mixed and undergo one-time roughing, so as to obtain the rougher concentrate and the rougher tailings; S3, the rougher concentrate and the collector A are mixed and undergo multiple-time cleaning to obtain the copper concentrate; and S4, the cascade-intensified flotation is carried out on the rougher tailings to obtain a sulfur-containing tailings, wherein the collector A includes and the depressant B includes sodium cyanamide, sodium dicyandiamide, sodium polycyanamide and sodium polysulfide.

Claims10

Dependent claims

A method of flotation separation for copper-sulfur polymetallic ore, comprising following steps:

S1, performing an ore grinding treatment on a raw ore, so as to obtain a ground ore material, wherein in the ground ore material, an exposure ratio of 112 facet of chalcopyrite is 55%-65%, an exposure ratio of 204 facet is 5%-18%, an exposure ratio of 312 facet is 3%-10%, and an exposure ratio of 100 facet of pyrite is 60%-80%;
S2, performing a slurry conditioning and a pH adjustment on the ground ore material in sequence, then adding a collector A, a depressant B and a frother into a resultant for a one-time roughing, so as to obtain a rougher concentrate and a rougher tailings;
S3, mixing the rougher concentrate and the collector A and carrying out a multiple-time cleaning, so as to obtain a copper concentrate;
and
S4, performing a cascade-intensified flotation on the rougher tailings, so as to obtain a sulfur-containing tailings, wherein
the collector A comprises
and
the depressant B comprises a sodium cyanamide, a sodium dicyandiamide, a sodium polycyanamide and a sodium polysulfide.

5 more elements

Dependencies are inferred from the claim text.