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Method for producing high-grade fluorite concentrate through multistage discharge flotation method

A high-grade, flotation technology, applied in flotation, solid separation and other directions, can solve the problems of low proportion of high-grade fluorite concentrate, low grade of fluorite concentrate, coarse grinding process, etc. The process is simple, avoiding the deterioration of the selected environment, and reducing the effect of site construction

Inactive Publication Date: 2014-09-03
何凯夫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the comprehensive recovery rate of fluorite in this invention has been improved, its treatment process is slightly insufficient, the grinding process is rough, the grade of fluorite concentrate is not high, and the proportion of high-grade fluorite concentrate obtained is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Using 50% CaF2-containing fluorite ore from a certain place in Guizhou Province as raw material, with a silicate content of 12% and a carbonate content of 15%, this technological process is used for production, and the product meets the design requirements. The technological process is as follows:

[0023] a. In the pretreatment process, before the pulp enters roughing, according to the content of CaF2, silicate and carbonate in the raw ore, the pH value of the pulp is adjusted to 8-10, and the optimum water temperature is controlled at 20°C-25 At the same time, inject inhibitors and collectors in stages to control the dosage of inhibitors and collectors.

[0024] b. In the roughing process, use a flotation machine with four or five slots for roughing, and further improve the flotation machine, reduce the speed of the motor in the last slot of the flotation machine, Use an 8-stage motor to replace the original 6-stage motor, and at the same time close the intake pipe of...

Embodiment 2

[0030] Using fluorite ore containing 25% CaF2 in a certain place in Guangxi as raw material, its carbonate content is 30%, and its silicate content is 22%. It is produced by this technological process, and the product meets the design requirements. The technological process is as follows:

[0031] Select the flotation machine with five grooves for use as the roughing equipment, select the flotation machine with three grooves for use as the fine selection equipment, the improvement of the flotation equipment is the same as that of embodiment 1, the motor of the last groove of the flotation machine is reduced Speed, replace the original 6-stage motor with an 8-stage motor, and close the intake pipe of the last slot at the same time.

[0032] The CaF2 grade of the raw ore is 25%, the carbonate content is 30%, and the silicate content is 22%. The second inhibitor should be added in the roughing process. All the other methods are the same as in Example 1.

[0033] This technical p...

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Abstract

The invention discloses a method for protruding high-grade fluorite concrete through a multistage discharge flotation method. One flotation machine with four or five grooves is used for conducting rough flotation work, three floatation machines respectively with three grooves are connected in series to conduct continuous fine floatation work of the first fine floatation, the second fine floatation and third fine floatation, a motor of the last groove of each floatation machine is decelerated, an eight-stage motor is used for replacing an original six-stage motor, an air inlet pipe of the last groove is closed, the stirring amount of the last groove is reduced, impurities are settled in the grooves, multistage discharge is achieved, the impurities of tailings are prevented from being sequentially returned, and therefore the fine floatation environment is prevented from being deteriorated. Decontamination and purification are continuously conducted in the fine floatation procedure, high-grade concentrate is obtained, the comprehensive recovery rate of the concentrate is more than 95 percent, and the grade is more than 97 percent. The scavenging procedure in the prior art is omitted in the method, the technology procedures are simple, operation is easy and convenient to conduct, and the method is suitable for be popularized in small and medium size beneficiation enterprises.

Description

technical field [0001] The invention relates to a beneficiation technology of fluorite ore, more specifically to a method for producing high-grade fluorite concentrate from fluorite ore by using multistage tailing flotation. Background technique [0002] Fluorite is also known as fluorspar, and its chemical composition is CaF2. It emits blue or purple fluorescence when it is irradiated by ultraviolet rays, cathode rays or heated, hence its name. Fluorspar is one of my country's strategic non-metallic ore resources and the leading raw material for the fluorine chemical industry. my country is located in the circum-Pacific metallogenic belt, and fluorite resources are very rich, accounting for 35% of the world's fluorite reserves, but the proportion of high-grade fluorite ore in my country is small, most of which are low-grade paragenetic ore, and the grade is generally 35% to 40%. , and with the continuous development of my country's mineral resources, single rich ore fluorit...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03B1/00
Inventor 何凯夫
Owner 何凯夫
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