Inverse floatation collecting agent for carbonate phosphorus ore

Abstract

The invention relates to a reverse flotation collector of carbonate phosphate ores and a preparation method thereof. The collector is essentially composed of the following raw materials by weight proportion: 0.5-0.8 part of acidified raw bran oil, 0.5-0.2 part of acidified soy oil, 0.01-0.1 part of foamer which takes semi-finished products after saponification as benchmark. The preparation method of the collector is that: the mixture of the acidified raw bran oil and the acidified soy oil is taken as raw material, which is heated to 80-100 DEG C, added with soda lye and stirred for saponification, the pH value is controlled between 7 to 8, and then the foamer is added into the mixture to obtain finished products. The collector has the advantages of strong collecting capability, high selectivity, small dosage and low temperature resistance, etc., and is suitable for the ore dressing production of carbonate phosphate ores and various phosphorus ores; even when the grade of carbonate phosphate ores is reduced to 17%, the quality of the produced phosphate concentrate still can meet qualification requirements; in addition, the invention has simple preparation technique, easy operation, high recover rate of ore concentrate, low content of MgO in ore concentrate and low ore dressing cost.

Description

A kind of carbonate phosphate rock reverse flotation collector technical field The invention relates to an ore flotation collector, in particular to a carbonate phosphate rock reverse flotation collector and a preparation method thereof. Background technique my country's phosphorus resources rank second in the world. However, the average grade of phosphate rock in the country is only 16.95%, and there are only 110.8 billion tons of rich ore with a P2O5 grade of more than 30%, and more than 85% of the low- and medium-grade phosphate rock is collophanite that is not easy to select and enrich. Due to the backward development technology of phosphate rock and too few large-scale state-owned backbone mines, phosphate rock is far from meeting the needs of the development of phosphorus chemical industry; in addition, random digging by townships and private enterprises has caused serious waste of resources. For the reverse flotation collectors of carbonate phosphate rock currently...

AI Technical Summary

Problems solved by technology

When the P2O5 content of raw ore is less than 22%, it is difficult to produce qualified phosphorus concentrate products. Even if qu