Copper-nickel sulphide ore floatation collector

Abstract

The invention relates to a copper-nickel sulphide ore floatation collector, which is prepared from isobutanol, phosphorus pentasulfide, ammonia water, hydroximic acid and ethionine ester. A preparation method comprises the following steps of: adding the isobutanol into a kettle, adding the phosphorus pentasulfide with stirring, introducing steam to heat to the temperature of the between 70 and 80 DEG C, performing reaction for 2 hours, injecting water into a jacket until the temperature is reduced to 40 DEG C, adding into an ammoniation kettle, injecting water for dilution with stirring, introducing the ammonia water for ammoniation when the concentration is diluted to 70 percent, controlling the ammoniation temperature to be 45 DEG C, and stopping introducing the ammonia water when the pH value reaches 8-9; continuously stirring for 20 minutes to obtain a substance for later use; weighing the substance for later use, the hydroximic acid and the ethionine ester based on weight part; and putting into the kettle sequentially, stirring at normal temperature for 1 hour, and discharging when the pH value is over 7 to obtain the finished product. The copper-nickel sulphide ore floatation collector has the advantages of strong selectivity and high recovery rate.

Description

technical field [0001] The invention relates to a sulfide mineral flotation collector, in particular to a copper-nickel sulfide ore flotation collector. Background technique [0002] At present, the flotation method of copper-nickel sulfide minerals at home and abroad is generally to use mixed collectors to strengthen the flotation of copper-nickel minerals in weak alkaline media, usually using the combination of xanthate and black powder, xanthate and esters Or high and low xanthate combination. Among them, the combination of tertiary xanthate and butylamine black is the most widely used as a mixed collector. The grade of nickel concentrate can generally reach 4-8%, and the recovery rate of nickel metal is between 70-85%. This method has been widely used. Used in industrial production. As we all know, xanthate has strong collection ability but low selectivity and no foaming performance; black medicine has weak collection ability but has strong selectivity and foaming perf...

AI Technical Summary

Problems solved by technology

As we all know, xanthate has strong collection ability but low selectivity and no foaming performance; black medicine has weak collection ability but has strong selectivity and foaming performance

However, in the flotation of copper-nickel sulfide ore, nickel metal is mainly enriched in pyrite, and the ability of black powder to collect iron sulfide is weak, which makes the application effect of black powder unsatisfactory, resulting in xanthate and pyrite in production practice. The black drug mixed collector has strong collection capacity but poor selectivity, which is not conducive to the improvement of nickel concentrate grade and recovery rate, affects the technical indicators of ore dressing, and reduces the economic benefits of the dressing plant