Combined collecting agent for improving molybdenum recovery rate of low-copper high-molybdenum ore and application process thereof

Abstract

The invention discloses a combined collecting agent for improving the molybdenum recovery rate of low-copper high-molybdenum ore and an application process of the combined collecting agent. The combined collecting agent is prepared from the following raw materials in parts by weight: 2-5 parts of fractionation-grade kerosene higher than 220 DEG C, 1-2 parts of heavy wax, 2-3 parts of motor oil, 1-2 parts of tricyclic aromatic hydrocarbon, and 1-3 parts of v fatty acid polyglycolate serving as an emulsifier. The process is simple, high in applicability, low in production cost, high in molybdenum recovery rate and easy to industrially popularize. A novel combined collecting agent which is good in stability, high in viscosity, capable of easily adsorbing coarse-particle ore and high in collecting capacity and has a certain number of large-molecule aromatic hydrocarbon is synthesized after emulsifying is conducted through the emulsifier, and the recovery rate of molybdenum in the low-copper high-molybdenum ore can be effectively increased. According to the application process, copper concentrate and molybdenum concentrate with good indexes are finally obtained through the steps of adding the combined collecting agent, conducting copper-molybdenum bulk flotation, conducting copper-molybdenum separation, conducting molybdenum rough concentrate concentration and the like, and efficient recovery of molybdenum in the low-copper high-molybdenum ore can be achieved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and specifically relates to a combined collector for improving the molybdenum recovery rate of low-copper and high-molybdenum ores and an application process thereof. Background technique [0002] my country's molybdenum resources are very rich, its reserves account for about 25% of the world's total molybdenum reserves, second only to the United States, ranking second in the world, and it is one of the six major mineral resources in my country. Copper-molybdenum ore is one of the main sources for obtaining molybdenum concentrate. Foreign countries that process copper-molybdenum ore mainly include the United States, Canada, and Chile. The consumption of copper-molybdenum mineral resources in my country is relatively large, and it is of far-reaching significance to strengthen the development and utilization of low-grade copper-molybdenum ore. [0003] In the existing production process...

AI Technical Summary

Problems solved by technology

[0003] In the existing production process of low-copper and high-molybdenum ore, because the grinding fineness does not meet the requirements, the ore particles are relatively coarse; at the same time, due to the low copper content of low-copper and high-molybdenum ore, the yield of copper-molybdenum mixed flotation is low, often There are problems such as high molybdenum content in tailings and low molybdenum recovery rate

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