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Direct flotation regulator for collophanite containing high-power semi-oxide, and method and application thereof

A positive flotation and adjusting agent technology, applied in flotation, solid separation and other directions, can solve the problems of poor chemical selectivity, large loss, and large influence of ore sludge, and achieve the effect of firm adsorption and enhanced flocculation.

Inactive Publication Date: 2020-12-01
BLUESTAR LEHIGH ENG INST CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] In my country, phosphate rock resources are mainly concentrated in Yunnan, Guizhou, Sichuan, Hunan, Hubei and other places, mainly composed of sedimentary phosphorites, among which low-grade collophosite is the main one, and some of the low-grade siliceous collophosites contain aluminum and Iron sesquioxide (R 2 o 3 ) is relatively high, in the traditional wet production of phosphoric acid, iron and aluminum elements can not only cause phosphoric acid to form sludge, but also greatly affect the growth of calcium sulfate crystals, eventually causing P in the subsequent concentration process 2 o 5 Therefore, in order to reduce the impact on the process of wet phosphoric acid and acid fertilization, it is necessary to reduce the content of iron and aluminum sesquioxide in phosphorus concentrate as much as possible
[0003] At present, for high-alumina, high-iron and low-grade silicon-calcium collophosite, reverse flotation and direct flotation deferric aluminum are mainly used. The collector is selected from amine reagents. The process has poor reagent selectivity and the process is affected by the sludge The impact is relatively large, and the removal rate of iron and aluminum minerals is low. However, due to the fine-grained mud in the backwater and the Ca 2+ , Mg 2+ The problem of high concentration, the disadvantage of large fluctuations in the index of the positive flotation process

Method used

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  • Direct flotation regulator for collophanite containing high-power semi-oxide, and method and application thereof
  • Direct flotation regulator for collophanite containing high-power semi-oxide, and method and application thereof
  • Direct flotation regulator for collophanite containing high-power semi-oxide, and method and application thereof

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Embodiment 1

[0018] Embodiment 1, a kind of positive flotation adjustment agent that is used to contain high sesquioxide colloides, main component is polyacrylamide-p-methylstyrene hydroxamic acid sodium, and its structural formula is:

[0019]

[0020] In the formula: 87X+94Y+71Z+120n=1.6×10 6 ; X, Y, Z and n are all positive integers.

[0021] When it is used for the positive flotation of high-sesquioxide-containing collophosphine, the positive flotation desiliconization process is adopted, the grinding fineness is -0.074mm, and the particle size is 90%; the pH during the positive flotation process is 9.5 , the dosage of regulator sodium carbonate is 3.0kg / t, the dosage of regulator polyacrylamide-p-methylstyrene hydroxamic acid sodium is 50g / t; the dosage of inhibitor water glass is 2.5kg / t; the collector C18 unsaturated fatty acid saponification The material consumption is 1.0kg / t. After pulping, it enters the positive flotation tank for positive flotation desiliconization operati...

Embodiment 2

[0023] Embodiment 2, a kind of positive flotation adjustment agent that is used to contain high sesquioxide colloides, main component is polyacrylamide-p-methylstyrene base hydroxamic acid potassium, and its structural formula is:

[0024]

[0025] Where: 87X+94Y+71Z+120n=1.8×10 6 ; X, Y, Z and n are all positive integers.

[0026] (2) The method of use is as follows: the flotation adopts the positive flotation desiliconization process, the grinding fineness is -0.074mm and the particle size is 95%; the pH is 10 during the positive flotation process, and the dosage of the regulator sodium carbonate is 2.0kg / t , the dosage of regulator polyacrylamide-sodium p-methylstyrene hydroxamate is 60g / t; the dosage of inhibitor water glass is 4.0kg / t; the dosage of collector C18 unsaturated fatty acid saponification is 1.3kg / t. After pulping, it enters the positive flotation tank for positive flotation desiliconization operation, the foam product is concentrate, and the product in th...

Embodiment 3

[0028] Embodiment 3, a kind of positive flotation adjustment agent that is used to contain high sesquioxide collophanite, it is a kind of modified macromolecular compound, main component is polyacrylamide-p-methylstyrene base hydroxamic acid potassium , whose structural formula is:

[0029] Where: 87X+94Y+71Z+120n=1.7×10 6 ; X, Y, Z and n are all positive integers.

[0030] (2) The method of use is: the flotation adopts the positive flotation desiliconization process, the grinding fineness is -0.074mm, and the particle size is 80%; the pH is 10 during the positive flotation process, and the dosage of the regulator sodium carbonate is 3.0kg / t , the dosage of regulator polyacrylamide-sodium p-methylstyrene hydroxamate is 50g / t; the dosage of inhibitor water glass is 2.0kg / t; the dosage of collector C18 unsaturated fatty acid saponification is 1.2kg / t. After pulping, it enters the positive flotation tank for positive flotation desiliconization operation, the foam product is con...

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Abstract

The invention discloses a direct flotation regulator for collophanite containing high-power semi-oxide. The main component of the direct flotation regulator is polyacrylamide-p-methylstyryl hydroxamicacid salt. The invention further discloses a direct flotation method for the collophanite containing high-power semi-oxide. The fineness of an ore grinding product is controlled to be-0.074 mm, the grain size fraction accounts for 85%-97% through ore grinding operation, the pH of a flotation system is controlled to be 9-11, a pH regulator, the regulator, inhibitor sodium silicate and collecting agent unsaturated fatty acid are sequentially added, and after size mixing, the ore grinding product enters a direct flotation tank to be subjected to direct flotation desilication operation. The invention also discloses an application of the polyacrylamide-p-methylstyryl hydroxamic acid salt. The method is applied to the direct flotation process of collophanite containing high-power semi-oxide, the selective inhibition effect on fine-fraction silicon-containing minerals can be enhanced, meanwhile, the influence of Ca < 2 + > and Mg < 2 + > on the collecting agent can be eliminated to a certainextent, and the direct flotation effect of collophanite is improved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and relates to a positive flotation regulator for collophosite containing high sesquioxide, and also relates to a flotation method and application thereof. Background technique [0002] In my country, phosphate rock resources are mainly concentrated in Yunnan, Guizhou, Sichuan, Hunan, Hubei and other places, mainly composed of sedimentary phosphorites, among which low-grade collophosite is the main one, and some of the low-grade siliceous collophosites contain aluminum and Iron sesquioxide (R 2 o 3 ) is relatively high, in the traditional wet production of phosphoric acid, iron and aluminum elements can not only cause phosphoric acid to form sludge, but also greatly affect the growth of calcium sulfate crystals, eventually causing P in the subsequent concentration process 2 o 5 Therefore, in order to reduce the impact on the process of wet phosphoric acid and acid fertilization, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D103/06
CPCB03D1/01B03D2203/06
Inventor 李丰刘星强刘云涛
Owner BLUESTAR LEHIGH ENG INST CO LTD
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