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Oleamide sodium type phosphorite floatation agent and preparation method thereof

A technology of sodium oleic acid amide and oleic acid amide, applied in flotation, solid separation and other directions, can solve the problems of large dosage of chemicals, odor, intolerant of hard water, etc.

Inactive Publication Date: 2011-11-16
YUEYANG BAILI IND GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original medicament and production process can no longer meet the production and market demand of phosphate ore beneficiation flotation
Anionic (fatty acid) collectors have disadvantages such as poor selectivity, resistance to hard water, high temperature requirements, large dosage of chemicals, high production costs, or odor, and relatively complicated production processes, while cationic (amine) collectors agent, selective, sensitive to mud, sticky foam, difficult to achieve flotation foam transport
But so far there is no relevant report and invention about sodium oleic acid amide type flotation agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] ①. Weigh 500g each of oleic acid and diethanolamine and place them in a three-necked flask; stopper one end with a glass tube plug, and insert the glass tube to the bottom of the flask, and connect the other end to the exhaust gas with a drying tube. Put the flask into a constant temperature oil bath with magnetic stirring; start stirring, heat up to 100°C, carry out amidation reaction, and react for 1 hour; then cool down to 70°C for use;

[0019] ②. Weigh 500ml of sodium hydroxide and dissolve it in water, control the temperature at 65°C, and put it into a pear-shaped bottle for later use; transfer the reacted oleic acid amide into a 500ML beaker; Carry out saponification reaction with unreacted fatty acid in the amidation reaction; saponification reaction temperature is controlled at 80°C for 20 minutes;

[0020] 3. When in use, use the oleic acid amide sodium type flotation agent and (surfactant Twen series and long-chain alkyl sulfonate) obtained from the above pro...

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PUM

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Abstract

The invention relates to a phosphorite flotation agent, and in particular relates to an oleamide sodium type phosphorite flotation agent and a preparation method thereof. The preparation method comprises the following steps of: carrying out an amidation reaction on oleic acid and diethanol amine, wherein the mol ratio of the oleic acid to the diethanol amine is 1: 1; and meanwhile, carrying out a saponification reaction on unreacted fatty acid in an amidation reactant and a 30% sodium hydroxide solution, wherein the iodine value of plant oleic acid is more than 110. When the phosphorite flotation agent is used, the produced oleamide, sodium type floatation agent as well as surfactant Twen series and long-chain alkyl sodium sulfonate are compounded in a certain proportion. Compared with the traditional conventional flotation agent, the phosphorite flotation agent provided by the invention has a better flotation effect, the mineral separation comprehensive efficiency is obviously improved, and the raw materials are available, the price is low, a synthetic route is simple, safe and reliable, and the abundant low-grade phosphorite resource in China can be fully utilized.

Description

technical field [0001] The invention relates to a phosphate rock flotation agent, in particular to a sodium oleic acid amide type and a preparation method thereof. Background technique [0002] Phosphate rock is an essential basic raw material for the production of phosphate fertilizers and phosphorus chemical products. my country's phosphate rock resource reserves are 16.786 billion tons, with an average grade of 16.95%. The high-grade ore that can be directly used can only be mined for more than ten years, while the middle and low-grade collophosphine has complex mosaic relationships, fine mosaic particle size, and poor dissociation. And other characteristics, its development and utilization is a worldwide problem. The research, development and utilization of flotation agents are of decisive significance to the utilization of the entire phosphate rock resource. [0003] The research on phosphate rock flotation process has made little progress at home and abroad in recent ...

Claims

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Application Information

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IPC IPC(8): B03D1/018
Inventor 黄俊罗惠华
Owner YUEYANG BAILI IND GREASE
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