Low-temperature floatation composite collecting agent of low-grade bauxite

Abstract

The invention relates to a low-temperature floatation composite collecting agent of low-grade bauxite. The agent is capable of effectively solving the problems of being poor in low-temperature adaptability, high in preparation cost and low in resource utilization rate in the conventional bauxite floatation collecting agent. The technical proposal provided by the invention is as follows: the low-temperature floatation composite collecting agent is formed by sufficiently dissolving and homogenizing 90-95wt% of a first component and 5-10wt% of a second component; the first component is obtained by compounding 40-60wt% of sodium oleate, 20-40wt% of fatty alcohol polyethylene glycol ether sodium acid and 20-30wt% of senior alkyl C16-18-alcohol; the second component is sodium hexametaphosphate; various compositions of the low-temperature floatation composite collecting agent disclosed by the invention are solubilised and homogenized with one another, so that a synergy effect is generated; due to the synergistic action among the various components, the composite collecting agent is easily and uniformly dispersed in ore pulp; the collecting capability of the collecting agent is enhanced; simultaneously, the benefication temperature is 10-20 DEG C; and the low-temperature floatation composite collecting agent has the advantages of being good in low-temperature resistant property, low in use amount of the collecting agent, obvious in economical benefit and wide in application prospect.

Description

technical field [0001] The invention relates to a low-grade bauxite low-temperature flotation composite collector. Background technique [0002] More than 90% of my country's alumina resources belong to diaspore-type bauxite, and the proven reserves of bauxite before 1985 have an aluminum-silicon ratio (A / S) of 4 or more and only 523 million tons. Before 1995, the aluminum-silicon ratio of the raw ore of the alumina plant was generally maintained above 10. In 2002, the ratio of aluminum-silicon of the raw ore of the alumina plant could still be maintained at 8.5. In 2012, the aluminum-silicon ratio of raw ore in alumina plants was basically maintained at 4-6. After the last 10 years of predatory mining, bauxite resources have been severely depleted and depleted. At present, my country's alumina industry needs about 40-60 million tons of domestic bauxite resources every year, and a large amount of domestic alumina production capacity will face the situation that there will ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a low-grade bauxite low-temperature flotation composite collector, which can effectively solve the poor low-temperature adaptability of the existing bauxite flotation collector. The problem of high preparation cost and low resource utilization