Zinc oxide composite floating agent and preparation method and application thereof

Abstract

The invention discloses a zinc oxide composite floating agent and a preparation method and application thereof. The floating agent is prepared from the following components of, by mass, 30-40 parts ofoctadecylamine acetate, 15-20 parts of dodecylamine, 15-20 parts of primary amine, 30-40 parts of methyl isobutyl carbinol, 7-15 parts of copper sulfate and 3-5 parts of an emulgator. The preparationmethod comprises the steps that the octadecylamine acetate, the dodecylamine, the primary amine and the solid copper sulfate are put into a container, then, the methyl isobutyl carbinol and the emulgator are added into the container, stirring is uniformly conducted at the temperature of 30-40 DEG C to obtain a mixed solution, the mixed solution is subjected to emulsification treatment, and the zinc oxide composite floating agent is obtained. When the composite floating agent is used for processing low-grade high-slime zinc oxide ore, raw ore does not need to be subjected to desliming treatment, and floating is directly conducted. The technical process is simple, and the zinc oxide composite floating agent is free of environment pollution and environmental friendly and has broad application prospects.

Description

technical field [0001] The invention relates to a composite flotation agent of zinc oxide, a preparation method and application thereof, and belongs to the technical field of ore dressing flotation agents. Background technique [0002] Zinc is mainly used in the galvanizing industry. A large part of the zinc produced in the world is used in the galvanizing industry, and the rest is mainly used in die-casting alloys, brass, and rolled products. At present, high-purity zinc-silver batteries have the advantages of small size and high energy, and are used as instrument power supplies for aircraft and spacecraft. The organic compounds of zinc diaryl zinc dithiophosphate and dialkyl zinc dithiophosphate can be used to prepare internal combustion engine oil to improve anti-wear, anti-oxidation and anti-corrosion performance; as a granular compound mainly containing zinc element Nitrogen fertilizer urea zinc, its main function is to make the roots of crops more and stronger, the st...

AI Technical Summary

Problems solved by technology

However, the grade of zinc oxide ore in our country is low, and the recovery index is not ideal. A large amount of zinc oxide ore is abandoned or piled up for a long time. The main difficulties in the recovery of zinc oxide ore are as follows. It hinders the contact between the agent and the mineral, thereby reducing the collection efficiency; second, the flotation conditions of different minerals in the ore are different, and the interference between the agents at each stage is serious; third, the surface of the zinc oxide mineral is often oxidized Iron pollution, loss of original flotation performance

[0004] At present, there are generally amine and xanthate collectors for zinc oxide flotation reagents, but the effect of simply using amine or xanthate collectors is not ideal, and the index is low. The patent application number is "201610629984.9" and it is published A preparation method of a zinc oxide ore collector, the method is to mix methyl oleate and methanol in a molar ratio of 1~2:1~3 to obtain a solution 1, and then prepare a solution 1 with a mass percent concentration of 25~30 % sodium hydroxide was added to solution 1 at a mass ratio of 1~2:2~3, stirred and reacted at 120~125°C for 2~2.5 hours to obtain solution 2, and then phosphorus pentoxide was added at 90°C According to the mass ratio of 1~2:1.5~4, add it into the solution 2 and stir it, and finally add sodium hydroxide to neutralize and dry it. The collection ability of zinc is poor, and the recovery index is low. It is of great significance to develop a composite flotation agent for zinc oxide ore with low grade and high mud