Low-grade fluorite silicon reduction mineral processing process

A low-grade, high-tech technology, applied in the direction of flotation, solid separation, etc., can solve the problems of no inhibitor application introduction, etc., and achieve the effect of being conducive to selection and removal of impurities, enhanced defoaming effect, and easy control

Inactive Publication Date: 2011-06-15
SHANDONG ZHAOJIN GROUP
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, no ideal solutions and methods have been proposed for fluorite mines with extremely low grades, extremely fine quartz embedded pa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Rough separation: After the ore is crushed, it enters the ball mill for grinding to form a slurry, and Na is added during the grinding process. 2 CO 3 , sodium silicate to adjust the pulp, add oleic acid in the mixing tank to adjust the pulp, and then use the flotation machine for rough separation, the foam product produced by flotation is concentrated ore, which enters the selection process, and the remaining products enter the sweeping process as medium ore , the tailings produced by sweeping are pumped into the tailings dam by the tailings pump;

[0019] 2) The first beneficiation: the first beneficiation of the rough-selected concentrate is carried out with a flotation machine, the produced concentrate enters the regrinding process, and the middle ore returns to the upper-level flotation operation;

[0020] 3) Regrinding process: the concentrate after primary refining enters the ball mill for regrinding. In order to increase the monomer dissociation degree of fl...

Embodiment 2

[0023] Embodiment 2: the difference with embodiment 1 is:

[0024] The sulfuric acid, water glass and oxalic acid in the inhibitor are diluted respectively to reach 6%, 6% and 9% respectively, and then mixed according to the volume ratio of 1:2:2.

[0025] This method is suitable for low-grade fluorspar mines with less mud content.

Embodiment 3

[0026] Embodiment 3: the difference with embodiment 1 is:

[0027] The sulfuric acid, water glass and oxalic acid in the inhibitor are diluted respectively to reach 9%, 5.5% and 5.5% respectively, and then mixed according to the volume ratio of 1:2:2.

[0028] This method is suitable for low-grade fluorspar mines with high quartz content and close symbiotic relationship.

[0029] The configuration steps of the above inhibitors: first dilute sulfuric acid, water glass, and oxalic acid as required, then put 1 volume of dilute sulfuric acid solution in a container, then pour 2 volumes of water glass solution into sulfuric acid, and stir for 2 minutes , and finally pour 2 volumes of oxalic acid solution into the above mixed solution and stir for 2 minutes.

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PUM

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Abstract

The invention relates to a low-grade fluorite silicon reduction mineral processing process. In addition to comprising the processes of roughing, fine selecting for at least five times and scavenging, the low-grade fluorite silicon reduction mineral processing process is characterized in that a regrinding process is added after first fine selection, and inhibitors are added into the second fine selection and the fourth fine selection. Accordingly, the invention can effectively separate quartz from fluorite and effectively prolong the medicine effect time, has the advantages of easiness of manufacture, convenience in use and obvious effect, can favorably improve the floating environment, reduce the influence of slurry on fluorite flotation and greatly improve the fluorite concentrate grade and is especially suitable for silicon reduction mineral processing of low-grade fluorite mineral.

Description

Technical field: [0001] The invention relates to a beneficiation process for reducing silicon in low-grade fluorite ore, and is especially suitable for selecting first-grade fluorite concentrate from low-grade magmatic rock fluorite ore. Background technique: [0002] At present, the beneficiation method of fluorite silicon reduction at home and abroad is mainly the flotation method. Through the appropriate beneficiation process, the monomer is cleaved, and the appropriate flotation reagent is selected to achieve the purpose of its separation. From the analysis of the current fluorite mineral processing: the utilization of low-grade fluorite ore is still very rare in foreign and domestic reports. Many low-grade fluorite mines in China, due to the CaF in the ore 2 Lower content (CaF 2 content of 20-30%), there has been no breakthrough in the mining and processing of this type of fluorite ore for many years. With the depletion of advantageous fluorspar deposits and the incr...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03B1/00B03D101/06B03D103/02
Inventor 窦源东李守生王慧刘云杰杨殿基贾珍王文胜杨爱军
Owner SHANDONG ZHAOJIN GROUP
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