A phosphate rock reverse flotation collector for calcite removal

A phosphate rock, reverse flotation technology, applied in flotation, solid separation, etc., to achieve the effect of excellent selectivity and high recovery rate of concentrate

Active Publication Date: 2018-08-28
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is only suitable for phosphorites with high dolomite content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1 Put 12g cottonseed oil, 12g soybean oil, 8g rosin, 20g rice bran oil, and 28g palm oil into a 500ml flask, start heating and stirring to fully dissolve the raw material oil in the flask, and when the temperature of the raw material oil in the flask rises to 70°C , slowly add 40g of NaOH aqueous solution with a mass concentration of 30%; control the slurry temperature in the flask to 90-100°C; react for 1 hour, add 5g of dioctyl sodium sulfosuccinate, 5g of sodium methyl palmitate, Add diethyl phthalate to the flask; continue to stir for 15 minutes to obtain a collector for phosphate rock reverse flotation to remove calcite.

[0012] Utilize the phosphate rock reverse flotation that present embodiment 1 makes to remove calcite collector to P 2 o 5 Content is 21.90%, MgO content is 0.51%, and CaO content is 51.80% Phosphorite is added 1.0kg per ton of raw ore to carry out reverse flotation to remove calcite, and obtain P 2 o 5 Concentrate of 32.48%, MgO conte...

Embodiment 2

[0013] Example 2 Take 12.75g cottonseed oil, 12.75g soybean oil, 8.5g rosin, 21.25g rice bran oil, and 29.75g palm oil and add them to a 500ml flask, start heating and stirring to fully dissolve the raw material oil in the flask; When rising to 70°C, slowly add 42g of NaOH aqueous solution with a mass concentration of 30%; control the slurry temperature in the flask to 90-100°C; react for 1 hour, add 3.75g of dioctyl sodium sulfosuccinate, 3.75g of palmitic acid Add sodium methyl sulfonate, 7.5g diethyl phthalate to the flask. Stirring was continued for 15 minutes to obtain a collector for phosphate rock reverse flotation to remove calcite.

[0014] Utilize the phosphate rock reverse flotation that embodiment 2 makes to remove calcite collector to P O content is 21.90%, and MgO content is 0.51%, and CaO content is 51.80% phosphate rock to add 1.0kg by every ton of raw ore and carry out reverse flotation Calcite was removed to obtain a concentrate with a P2O5 content of 31.78%...

Embodiment 3

[0015] Example 3 Take 13.5g cottonseed oil, 13.5g soybean oil, 9g rosin, 22.5g rice bran oil, and 31.5g palm oil and add them to a 500ml flask, start heating and stirring to fully dissolve the raw material oil in the flask, and wait until the temperature of the raw material oil in the flask rises. At 70°C, slowly add 44g of NaOH aqueous solution with a mass concentration of 30%; control the temperature of the slurry in the flask to 90-100°C, react for 1 hour, add 2.5g of dioctyl sodium sulfosuccinate, 2.5g of methyl palmitate Add sodium ester sulfonate and 5g diethyl phthalate to the flask; continue to stir for 15 minutes to obtain a collector for phosphate rock reverse flotation to remove calcite.

[0016] Utilize the phosphate rock reverse flotation that embodiment 3 makes to remove calcite collector to P O Content is 21.90%, MgO content is 0.51%, and CaO content is 51.80% Phosphorite to add 1.0kg per ton of raw ore and carry out reverse flotation Calcite was removed to obta...

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PUM

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Abstract

The invention relates to a phosphate ore reverse flotation collecting agent capable of removing calcite. The collecting agent is formed by compounding 80-90 % of a soaping agent with 10-20% of a composite surfactant by weight, wherein the soaping agent is formed by compounding 15% of cottonseed oil soap, 15% of soybean oil soap, 10% of rosin soap, 25% of rice bran oil soap and 35% of palm oil soap, and the composite surfactant is formed by compounding 25% of sodium diethylhexyl sulfosuccinate, 25% of sodium methyl palmitate sulfonate and 50% of diethyl phthalate. The collecting agent is suitable for the sedimentary type phosphate block rock reverse flotation foam floating process capable of removing calcite. The collecting agent has the characteristics of good selectivity and high concentrate recovery rate.

Description

technical field [0001] The invention relates to a phosphate rock reverse flotation collector, in particular to a collector for removing calcite from phosphate rock. It belongs to the field of surfactants. Background technique [0002] Phosphate rock is an important strategic resource, mainly used in the preparation of phosphate and phosphate fertilizer. The production of phosphate and phosphate fertilizer requires the raw material of phosphate rock to be P 2 o 5 The content is above 30%, and the MgO content is below 2%. In nature, there are limited phosphate rocks that can reach such an index, and most low-grade phosphate rocks need to be processed to meet the requirements of high-quality phosphate rocks. Foam flotation is currently the most widely used beneficiation method in the phosphorus chemical industry, among which reverse flotation is the most common process for removing dolomite. This process is only applicable to phosphorites with high dolomite content. In na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/06
CPCB03D1/018B03D2201/02B03D2203/06
Inventor 王仁宗熊良峰
Owner HUBEI FORBON TECH
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