Staged floatation method for separating low-grade calcite-barite-fluorite type ore

A step-by-step flotation, low-grade technology, which is applied in the field of step-by-step flotation for separating low-grade calcite-barite-fluorite-type ores, can solve the problem of low recovery rate of useful minerals, failure of minerals to float, and high content of useful minerals. problem, to achieve the effect of comprehensive recycling, good resistance to hard water, and good sorting effect

Active Publication Date: 2015-08-12
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the conventional process, there is a large amount of slime in the pulp during roughing, and the slime itself will be adsorbed on the surface of the mineral, so that the mineral cannot interact with the ...

Method used

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  • Staged floatation method for separating low-grade calcite-barite-fluorite type ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, a kind of step-by-step flotation method of separating low-grade calcite-barite-fluorite type ore, its steps are as follows:

[0029] (1) Crush the raw ore of low-grade fluorite ore to -1mm, and feed the crushed material into a ball mill. The part that is ground to -0.074mm accounts for 70% of the total weight of all materials, and then add water to make it with a weight concentration of 20%. Crude pulp;

[0030] (2) Put the raw ore pulp into the flotation equipment, under the condition of stirring speed of 1200rpm, firstly add the regulator sodium carbonate 1500g / t, adjust the pH value of the pulp to 9.5, then add the dispersant water glass 1200g / t, stir, Then add collector CA 300g / t, stir, carry out desliming flotation, and sort out the tailings containing quartz and calcite;

[0031] (3) The mixed coarse concentrate obtained by desliming flotation is subjected to a normal flotation roughing to obtain a fluorite coarse concentrate. During flotation, the ...

Embodiment 2

[0036] Embodiment 2, a kind of step-by-step flotation method of separating low-grade calcite-barite-fluorite type ore, its steps are as follows:

[0037] (1) Crush the raw ore of low-grade fluorite ore to -1mm, and feed the crushed material into a ball mill. The part that is ground to -0.074mm accounts for 95% of the total weight of all materials, and then add water to make it with a weight concentration of 40%. Crude pulp;

[0038](2) Put the raw ore pulp into the flotation equipment, under the condition of stirring speed of 1800rpm, first add the regulator sodium carbonate 2500g / t, adjust the pH value of the pulp to 10.5, then add the dispersant water glass 2000g / t, stir, Then add collector CA 600g / t, stir, carry out desliming flotation, and sort out the tailings containing quartz and calcite;

[0039] (3) The mixed coarse concentrate obtained by desliming flotation is subjected to one positive flotation roughing to obtain fluorite coarse concentrate. During flotation, the ...

Embodiment 3

[0044] Embodiment 3, a kind of step-by-step flotation method of separating low-grade calcite-barite-fluorite type ore, its steps are as follows:

[0045] (1) Crush the raw ore of low-grade fluorite ore to -1mm, and feed the crushed material into a ball mill. The part that is ground to -0.074mm accounts for 75% of the total weight of all materials, and then add water to make it with a weight concentration of 25%. Crude pulp;

[0046] (2) Put the raw ore pulp into the flotation equipment, under the condition of stirring speed of 1400rpm, firstly add the regulator sodium carbonate 1800g / t, adjust the pH value of the pulp to 9.8, then add the dispersant water glass 1500g / t, stir, Then add collector CA400g / t, stir, carry out desliming flotation, and sort out the tailings containing quartz and calcite;

[0047] (3) The mixed coarse concentrate obtained by desliming flotation is subjected to one positive flotation roughing to obtain fluorite coarse concentrate. During flotation, the...

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Abstract

The invention relates to a staged flotation method for separating low-grade calcite-barite-fluorite type ore, belonging to the technical field of mineral processing. The staged flotation method comprises the following steps: crushing raw ore of low-grade fluorite to -1.0mm, feeding the crushed raw ore to a ball grinder, grinding and adding water to prepare raw ore pulp, wherein a part finely ground to -0.074mm accounts for 70-95 percent; putting the ore pulp into a desliming floatation machine, adding sodium carbonate serving as a regulator while stirring, and then adding sodium silicate and a collecting agent CA to adjust the pH value of the ore pulp; feeding foams obtained by desliming floatation to a rougher flotation machine, adding a combined inhibitor YS first and stirring, then adding a direct flotation collecting agent CA and stirring, carrying out direct rougher flotation, and separating barite-containing tailings; carrying out direct fine flotation on rough concentrate obtained by direct rougher flotation to obtain fluorite concentrate, carrying out direct fine flotation on the tailings obtained by direct rougher flotation to obtain barite concentrate. The staged flotation process provided by the invention has a favorable separation effect aiming at barite-fluorite ore, and achieves the purposes of saving energy, reducing emission and easily realizing comprehensive recycling of barite and fluorite.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to a step-by-step flotation method for separating low-grade calcite-barite-fluorite type ores. Background technique [0002] Fluorite is a strategic mineral resource and the main raw material for producing fluorine-containing compounds. It is not only widely used in metallurgy, chemical industry, ceramics, building materials, machinery, electrical machinery, aviation, agriculture, medicine, precision instruments and other industrial sectors, but also is a Important high-energy materials for cutting-edge science and emerging industries such as atomic energy, rockets, and aerospace. At present, with the rapid development of fluorocarbons, fluoropolymers and fluorine-containing fine chemicals in the world, the international market is facing a serious shortage of fluorite fine powder. Fluorite has become a very important resource. Therefore, how to use and It is of great prac...

Claims

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Application Information

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IPC IPC(8): B03D1/00
Inventor 李丰杨勇刘国举李青海刘星强刘云涛
Owner BLUESTAR LEHIGH ENG INST CO LTD
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