Method for preparation of vegetable fatty acid and citric alkyl ester saponin compounded collecting agent

A technology of vegetable fatty acid and citric acid, applied in solid separation, flotation and other directions, can solve the problems of poor low-temperature flotation effect, high beneficiation cost, large dosage of chemicals, etc., and achieve high flotation efficiency, low price, and reduced beneficiation cost. Effect
CN104874487AInactive Publication Date: 2015-09-02WUHAN INSTITUTE OF TECHNOLOGY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN INSTITUTE OF TECHNOLOGY
Publication Date
2015-09-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a compound collecting agent for flotation of phosphorus ores, in particular to a method for preparation of a vegetable fatty acid and citric alkyl ester saponin compounded collecting agent. The method includes the steps: 1) subjecting alkyl alcohol and citric acid to esterification reaction to obtain a reaction product which is a citric alkyl ester surfactant; 2) adding vegetable fatty acid with iodine value being 135 into the citric alkyl ester surfactant obtained at the step 1), heating and well mixing; 3) adding the mixture obtained at the step 2) to sodium hydroxide solution to realize saponification, and well mixing to obtain the vegetable fatty acid and citric alkyl ester saponin compounded collecting agent. The method has the advantages that by utilization of the vegetable fatty acid and citric alkyl ester saponin compounded collecting agent, phosphorus selectivity is evidently improved, flotation temperature is lowered, and flotation efficiency is improved; in addition, easiness in purchase of raw materials, low cost, simple production lines, safety in production process and avoidance of irritating odors are realized, ore dressing cost is reduced, and defects in the prior art are overcome.
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Description

technical field

[0001] The invention relates to a compound collector for phosphate rock flotation, in particular to a preparation method for the compound collector of plant fatty acid citric acid hydrocarbyl ester soap. Background technique

[0002] Phosphate rock is an essential basic raw material for the production of phosphate fertilizers and fine phosphorus chemical products, and is an important strategic mineral resource in my country. my country has abundant reserves of phosphate rock resources, but most of them are medium and low-grade phosphate rocks with low phosphorus content. The high-grade phosphate rocks that can be directly used can only be mined for more than ten years. Due to the complex mosaic relationship of various minerals, fine mosaic particle size, poor dissociation, and high content of silicate and carbonate minerals, the development and utilization of middle and low-grade collophosite is a worldwide problem. In phosphate rock flotation, the existing ...

Claims

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