A kind of suspension and method for improving the efficiency of phosphate rock reverse flotation carbonate

A reverse flotation and carbonate technology, which is applied in the field of suspension for improving the reverse flotation efficiency of phosphate rock and carbonate, and can solve the problem of limited surface area of ​​carbonate minerals, etc. problems, to achieve the effect of improving flotation efficiency, enhancing collection, and improving flotation

Active Publication Date: 2017-05-31
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second reaction occurs only on the surface of the mineral, but the surface area of ​​carbonate minerals is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1, a suspension that improves the efficiency of phosphate rock reverse flotation carbonate, the suspension is composed of a solid phase and a liquid phase with a weight ratio of 1:1, and the solid phase has a particle size of 10- 20 μm, magnesium carbonate with a mass content of 80%, and the liquid phase is sulfuric acid with a mass content of 40%.

Embodiment 2

[0019] Embodiment 2, a kind of suspension liquid that improves the reverse flotation efficiency of carbonate of phosphate rock, this suspension liquid is made up of solid phase and liquid phase that the weight ratio is 1: 5, and described solid phase is that particle size is 5- 15 μm, magnesium carbonate with a mass content of 85%, and the liquid phase is sulfuric acid with a mass content of 60%.

Embodiment 3

[0020] Example 3, a suspension that improves the efficiency of phosphate rock reverse flotation carbonate, the suspension is composed of a solid phase and a liquid phase with a weight ratio of 1:2, and the solid phase has a particle size of 3- 10 μm, magnesium carbonate with a mass content of 88%, and the liquid phase is sulfuric acid with a mass content of 45%.

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PUM

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Abstract

The invention provides turbid liquid for improving efficiency of reverse flotation of carbonate from phosphorus. The turbid liquid is composed of a solid phase and a liquid phase according to the weight ratio of 1:1-5. The solid phase is magnesium carbonate with the granularity not larger than 20 micrometers and the mass content not smaller than 80%. The liquid phase is sulfuric acid with the mass content being 40-60%. The invention further discloses a method for improving efficiency of reverse flotation of carbonate from phosphorus. Under the same reverse floatation condition, the sulfuric acid preprocessing is additionally conducted on the magnesium carbonate with the surface being loose, porous and cellular and the granularity being not larger than 20 micrometers, the magnesium carbonate easily covers the surfaces of carbonate minerals and easily forms more CO2 micro bubbles in acid media, collectors can better capture the carbonate, and the elimination factor of carbonate gangue minerals is improved.

Description

technical field [0001] The invention relates to the field of phosphate ore beneficiation, in particular to a suspension for improving the efficiency of phosphate rock reverse flotation carbonates, and the invention also provides a method for improving the efficiency of phosphate rock reverse flotation carbonates. Background technique [0002] At present, most of the phosphorous concentrate powder is obtained through ore dressing. The purpose of beneficiation is to remove gangue minerals in phosphate rock. Carbonate gangues in phosphate rock are mainly dolomite and calcite. In phosphate rock beneficiation, reverse flotation is generally used to inhibit phosphate reverse flotation to remove magnesium from dolomite, because dolomite has better floatability than phosphate, especially in under acidic conditions. This process is relatively mature at present, and can remove the collophanite containing MgO4~5% to concentrate containing MgO0.8% or less. Large-scale flotation plant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B1/04B03D1/001
Inventor 杨勇刘国举李丰李青海
Owner BLUESTAR LEHIGH ENG INST CO LTD
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