Application of phosphoric acid ester compound to flotation of calcium-containing minerals
A phosphate ester and mineral flotation technology, applied in flotation, solid separation, etc., can solve the problems of small dosage of chemicals, difficulty in flotation and separation of minerals containing calcium salts, etc., achieve low production cost, low cost, and meet the requirements of industrial The effect of production
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[0027] Example 1
[0028] In a 300mL three-necked flask equipped with a stirrer, thermometer, condenser, and dropping funnel, add 10g ethylene glycol, 40g ethylene glycol monoethyl ether, 40g polyoxyethylene ether glycerol (molecular weight 1500), 30g ethylene glycol mono Diethyl ether, heated to 75℃ under stirring and mixing, then slowly add 20g of phosphorus pentoxide, control the reaction temperature to reach 130-140℃ after adding phosphorus pentoxide, and then add 30g of ethylene glycol monoethyl ether, and add it to 140 Keep the temperature at ℃ for 1h, add water to cool the product, and get the required calcite inhibitor. Its infrared spectrum analysis such as figure 1 . It is used to separate calcite from fluorite flotation.
[0029] The phosphate compound obtained above was used for the flotation separation of fluorite and calcite. Table 1 shows the comparison results of the new agent and the traditional calcite inhibitor acidified water glass. The results show that the n...
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[0033] Example 2
[0034] In a 300mL three-necked flask equipped with a stirrer, thermometer, condenser, and dropping funnel, add 10g ethylene glycol, 40g ethylene glycol monoethyl ether, 40g polyoxyethylene ether glycerol (molecular weight 1200), 30g ethylene glycol mono Diethyl ether, heated to 80℃ under stirring and mixing, then slowly add 20g phosphorus pentoxide, control the reaction temperature to reach 130-140℃ after adding phosphorus pentoxide, then add 30g ethylene glycol monoethyl ether, and add it to 140 Keep the temperature at ℃ for 2h, add water to cool the product, and get the required calcite inhibitor. Its infrared spectrum analysis such as figure 1 . It is used to separate calcite from fluorite flotation.
[0035] The phosphate compound obtained above was used for the flotation separation of Shizhuyuan tungsten ore and calcite. Table 2 shows the comparison results of the new agent and the traditional calcite inhibitor salted water glass. The results show that the...
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