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Low-temperature quick-dissolving phosphate ore flotation collector and preparation method thereof

An instant phosphate rock technology, applied in flotation, solid separation, etc., can solve the problems of high consumption of flotation collectors, low dissolution efficiency at low temperature, and high failure rate of equipment, so as to increase the cost of beneficiation and reduce the kraft Features, the effect of reducing productivity

Active Publication Date: 2016-12-21
HUBEI FORBON NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-temperature instant phosphate rock flotation collector to solve the problems of low temperature dissolution efficiency, high energy consumption, high consumption of flotation collector and high equipment failure rate of the above-mentioned flotation collector. agent and preparation method, the flotation collector provided by the invention has a fast dissolution rate at low temperature, and under the condition of 40°C, the collector solution with a mass concentration of 5% can be dissolved within 40min, and the low-temperature ore dressing effect is good, and it remains stable at 20°C It has a good beneficiation effect and reduces energy consumption; low temperature does not gel, reduces equipment failure rate, and improves the production capacity of the beneficiation plant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of polyhydroxy fatty acid:

[0018] Oleic acid in the present embodiment, formic acid, AEO3, mass concentration are 30% hydrogen peroxide solution, caustic soda direct purchase.

[0019] Add 3000kg of oleic acid and 1875kg of formic acid to the 10000L reactor in turn, stir at 30-35°C for 0.5h, then add 2625kg of hydrogen peroxide solution with a mass concentration of 30% dropwise, and react at 65-70°C after the dropwise addition After 5h, the lower water layer was separated, and the upper oil layer was the polyhydroxy fatty acid, which was discharged for use;

[0020] (2) Add 3100kg of polyhydroxy fatty acid, 1900kg of oleic acid, 1700kg of water, and 1000kg of AEO3 prepared in step (1) into the 14000L reactor in sequence, heat up to 80°C, keep stirring for 30min, and make a mixed material, which will be used in the next process .

[0021] (3) Add 2300kg of caustic soda solution with a mass concentration of 30% into the above-mentioned 14000L reaction ...

Embodiment 2

[0026] (1) Preparation of polyhydroxy fatty acid:

[0027] Oleic acid in the present embodiment, formic acid, AEO3, mass concentration are 30% hydrogen peroxide solution, caustic soda direct purchase.

[0028] Add 3000kg of oleic acid and 1875kg of formic acid to the 10000L reactor in turn, stir at 30-35°C for 0.5h, then add 2625kg of hydrogen peroxide solution with a mass concentration of 30% dropwise, and react at 65-70°C after the dropwise addition After 5h, the lower water layer was separated, and the upper oil layer was the polyhydroxy fatty acid, which was discharged for use;

[0029] (2) Add 3300kg of polyhydroxy fatty acid, 2000kg of oleic acid, 1800kg of water and 400kg of AEO3 in sequence in a 14000L reactor, heat up to 70°C, keep stirring for 40min, and make a mixed material for use in the next process.

[0030] (3) Add 2500kg of caustic soda solution with a mass concentration of 30% into the above-mentioned 14000L reactor, after the addition is completed, heat up ...

Embodiment 3

[0035] In this example, 9,10-dihydroxystearic acid, oleic acid, AEO3 and caustic soda are all purchased. Caustic soda is adjusted to a 30% solution in advance.

[0036] (1) Add 3360kg of 9,10-dihydroxystearic acid, 2080kg of oleic acid, 1840kg of water, and 720kg of AEO3 into a 14,000L reactor in sequence, raise the temperature to 90°C, keep stirring for 20 minutes, and make a mixed material for use in the next process.

[0037] (2) Add 2000kg of caustic soda solution with a mass concentration of 30% into the above-mentioned 14000L reactor, after the addition is completed, heat up to 100°C for 100min, and then cool. A low-temperature instant phosphate rock flotation collector is prepared and packaged.

[0038] At 40°C, the collector solution with a mass concentration of 5% can be completely dissolved in 36 minutes, and the dissolution rate of common fatty acid collectors is increased by 69.45%.

[0039] At 17°C, this collector will reduce raw ore P 2 o 5 P 2 o 5 35.18%, ...

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Abstract

The invention relates to a low-temperature quick-dissolving phosphate ore flotation collector and a preparation method thereof. The preparation method comprises the steps that raw materials comprising, by weight, 40-44% of multiple-hydroxy fatty acid, 25-27% of oleic acid, 22-24% of water and 5-13% of AEO3 are added into a reaction kettle and are stirred and mixed at 70-90 DEG C for 20-40 minutes to obtain mixed materials; a caustic soda solution which accounts for 25-35% of the mixed materials is added into the mixed material, wherein the mass concentration of the caustic soda solution is 30%, the reaction temperature is controlled to be 90-100 DEG C, and the reaction is subjected to heat insulation for 100-140 min; and cooling is conducted, and the low-temperature quick-dissolving phosphate ore flotation collector is obtained. The low-temperature quick-dissolving phosphate ore floatation collector has the advantages that the product is quickly dissolved at low temperatures, and a collector solution with the mass concentration being 5% is dissolved within 40 min at the temperature of 40 DEG C; the product low-temperature mineral separation effect is good, a good mineral separation effect can still be achieved at 20 DEG C, and energy consumption is lowered; the product still does not gels at 15-17 DEG C, the equipment fault rate is lowered, and separation concentrator capacity is improved; and the Krafft point of the collector is lowered, the dissolving performance is improved, the collector has high lime soap dispersion, and softening water capability is high.

Description

technical field [0001] The invention belongs to the technical field of ore dressing collectors, and relates to a low-temperature instant phosphate rock flotation collector and a preparation method. Background technique [0002] Most phosphate rock beneficiation plants are equipped with sulfuric acid plants, which can use the steam generated in the sulfuric acid production process for heating and dispensing. However, in Guizhou, Sichuan and other places, there are still some concentrators with only ore concentrators and no steam. During the dispensing process, electric heating rods need to be used to heat water for dispensing. This method not only has low heating efficiency and slow heating speed, but also leads to incomplete dissolution of conventional fatty acid collectors, resulting in high consumption of flotation collectors. What's more serious is that conventional fatty acid collectors tend to gel at low temperatures, which can block pipelines and cause the processing ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02B03D103/06
CPCB03D1/018B03D2201/02B03D2203/06
Inventor 王仁宗肖碧鹏
Owner HUBEI FORBON NEW MATERIAL CO LTD
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