Low-grade copper mine flotation agent and preparation method thereof

Abstract

The invention relates to a low-grade copper mine flotation agent, which is prepared with the following materials in part by weight: 25 to 30 parts of 208 dithiophosphate, 12 to 14 parts of ethyl isopropylxanthogenic formate, 9 to 12 parts of ammonium dibutyl dithiophosphate, 2 to 3 parts of dihenylethyl phenol polyoxyethylene ether, 1 to 2 parts of polyethyleneglycol monooleate, 3 to 4 parts of triethylene tetramine, 5 to 7 parts of menthol, 5 to 8 parts of phytic acid, 2 to 3 parts of calcium oxide, 2 to 4 parts of soda and 4 to 5 parts of activator. The foam of the flotation agent is stable, the flocculation effect is good, the flotation agent has good collecting capability within the pH range between 7 and 10, the capability of copper collection is high, yield is high, the selectivity of the agent is good, and the grade of copper is high; becauase the activator contains components such as fumed silica, dispersion is stable, moreover, permeability is good, activation is good, the duration of the activation effect is long, and the yield and grade of copper can be increased.

Description

technical field [0001] The invention relates to the field of mineral flotation agents, in particular to a low-grade copper ore flotation agent and a preparation method thereof. Background technique [0002] At present, the raw materials of copper mineral dressing and smelting in my country are mainly chalcopyrite, chalcocite, bornite, malachite and so on. According to the technical conditions of dressing and smelting, copper ore is divided into three natural types according to the ratio of copper oxide and copper sulfide. That is, sulfide ore, containing less than 10% copper oxide; oxidized ore, containing more than 30% copper oxide; mixed ore, containing 10% to 30% copper oxide. [0003] The collectors that occupy a dominant position in the current copper ore flotation process are flotation agents such as xanthate, thiophosphate and mercaptan, thiamine ester, xanthate, black drug ester, and xanthate. However, in the actual beneficiation, the results often fail to mee...

AI Technical Summary

Problems solved by technology

[0003] The collectors that occupy a dominant position in the current copper ore flotation process are flotation agents such as xanthate, thiophosphate, mercaptan, thiamine ester, xanthate, black drug ester, and xanthate. However, in the actual beneficiation, the results often fail to meet the design requirements, and the separation of copper and sulfur often occurs unsatisfactorily, and the sulfur content in copper concentrate products exceeds the standard; in addition, the yield of copper is low, and the recovery rate of copper concentrate is low. , resulting in a waste of mineral resources