Bauxite reverse-flotation blowing agent

Abstract

A foaming agent for reverse floatation of bauxite is disclosed, which is methyl pentanol. Its advantages are generation of more foam, high separation efficiency, high recovery rate of Al2O3 and less consumption of trapping agent.

Description

technical field [0001] The invention relates to a method for using a foaming agent used in reverse flotation of diaspore type bauxite ore, and belongs to the field of mineral processing engineering. Background technique [0002] More than 80% of my country's bauxite resources are medium-low-grade diaspore-type ores with an aluminum-silicon ratio of 5-8. The key to the successful use of this resource is to increase the aluminum-silicon ratio of bauxite through beneficiation, flotation It is the main method of beneficiation and desiliconization. Bauxite reverse flotation desiliconization technology is based on the content characteristics of main minerals in diaspore type bauxite, adopts the principle of floating less and suppressing more, and uses silicon-containing gangue minerals with less content in the ore as foam products After floating out, the diaspore concentrate with a yield of 70% to 80% remains in the flotation cell, thereby realizing desiliconization of bauxite ore...

AI Technical Summary

Problems solved by technology

At present, the foaming agents for bauxite reverse flotation desiliconization mainly include terpineol oil of alcohols, ethers, butyl ether alcohols of ether alcohols, etc. These agents are used to float silicon-containing gangue minerals in bauxite. The main disadvantages are: strong foaming ability, large bubbles formed, strong toughness of the bubbles, and high foam viscosity, resulting in serious entrainment during mineral separation, which is not conducive to the selective separation of minerals; Co-adsorption and mutual interpenetration, when pine alcohol oil, ethers, butyl ether alcohol, etc. are used as foaming agents, the amount of collectors will be large