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A kind of preparation technology of fluorite concentrate

A preparation process and technology for fluorite ore, applied in the field of fluorite beneficiation, can solve the problems of complex composition of fluorite ore, low yield of fluorite concentrate, complicated process, etc. good performance

Active Publication Date: 2020-05-08
ANHUI JINYANG FLUORINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The composition of fluorite ore is relatively complicated. The traditional mineral processing process generally heats the pulp, uses sodium carbonate to adjust the pH value of the pulp, suppresses gangue with water glass, etc., uses oleic acid as a collector, and obtains fluorite through multiple selections. Stone concentrate, the current yield of fluorite concentrate is low, the process is complicated, and the cost is high, which needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A low-cost and high-recovery fluorite concentrate preparation process comprises the following steps:

[0021] S1. Put the pentaerythritol stearate into the blender and stir, add pentaerythritol oleate and zircoaluminate successively under the stirring state to continue stirring, add water to mix and stir evenly, add fluorite ore to grind to obtain a pulp;

[0022] S2. Add sodium carbonate to the slurry to adjust the pH of the system to 7.6, add water glass and stir evenly, add fluorite collector and stir to obtain coarse ore;

[0023] S3. Adding salted sodium silicate to the coarse ore to remove quartz impurities, followed by one-stage beneficiation, two-stage beneficiation, and three-stage beneficiation to obtain low-cost and high-recovery fluorite concentrate.

Embodiment 2

[0025] A low-cost and high-recovery fluorite concentrate preparation process comprises the following steps:

[0026] S1. Put 10 parts of pentaerythritol stearate into the mixer in parts by weight, stir at a speed of 1000r / min, add 3 parts of pentaerythritol oleate and 0.1 part of zircoaluminate successively under stirring, continue stirring for 12 minutes, add Mix and stir 10 parts of water evenly, add 120 parts of fluorite ore and grind for 10 minutes to obtain ore slurry, the grinding speed is 10000r / min, and the grinding pressure is 0.12kPa;

[0027] S2. Add sodium carbonate to the slurry to adjust the pH of the system to 7.8, add 1 part of water glass and stir evenly, add 0.4 part of fluorite collector and stir for 10 minutes to obtain coarse ore;

[0028] S3, adding salted water glass to the coarse ore to remove quartz impurities, the first choice is to carry out the first flotation, followed by blank flotation under neutral conditions, and then add acidified water glass ...

Embodiment 3

[0030] A low-cost and high-recovery fluorite concentrate preparation process comprises the following steps:

[0031] S1. Put 4 parts of pentaerythritol stearate into the mixer in parts by weight, stir at a speed of 1200r / min, add 2 parts of pentaerythritol oleate and 0.2 parts of zircoaluminate successively under stirring, continue stirring for 5 minutes, add Mix and stir 20 parts of water evenly, add 100 parts of fluorite ore and grind for 20 minutes to obtain ore slurry, the grinding speed is 5000r / min, and the grinding pressure is 0.4kPa;

[0032] S2. Add sodium carbonate to the slurry to adjust the pH of the system to 7.4, add 3 parts of water glass and stir evenly, add 0.1 part of fluorite collector and stir for 20 minutes to obtain coarse ore;

[0033] S3, adding salted water glass to the coarse ore to remove quartz impurities, the first choice is to carry out the first flotation, followed by blank flotation under neutral conditions, and then add acidified water glass fo...

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Abstract

The invention discloses a preparation process of fluorite concentrate with low cost and high recovery rate. The preparation process comprises the following steps of sending pentaerythritol stearate into a mixer to be mixed, adding pentaerythritol oleate and zirconium aluminum acid ester in sequence in a mixing state to be continuously mixed, adding water to be uniformly mixed, and adding fluoriteore to be ground so as to obtain ore pulp; adding sodium carbonate to the ore pulp so as to adjust pH of the system to be 7.4 to 7.8, adding water glass to be uniformly mixed, and adding fluorite collectors to be mixed so as to obtain coarse ore; and adding salted water glass to the coarse ore so as to remove quartz impurities, and performing first-stage concentration, second-stage concentration and third-stage concentration in sequence so as to obtain the fluorite concentrate with low cost and high recovery rate. The preparation process has the advantage of high stability, and the produced fluorite concentrate has the advantages of high quality, high recovery rate, low beneficiation and processing cost and less environmental pollution.

Description

technical field [0001] The invention relates to the technical field of fluorite beneficiation, in particular to a low-cost and high-recovery fluorite concentrate preparation process. Background technique [0002] Fluorite is the main raw material for producing calcium fluoride, and because of its low melting point, it is widely used in steelmaking, non-ferrous metal smelting, cement, glass, ceramics and other industries. Colorless and transparent large fluorite crystals can also be used as optical fluorite and Craft fluorite. With the rapid development of the global market economy, especially the rapid development of my country's non-ferrous metallurgy industry, the demand for fluorite concentrate is increasing day by day, thus accelerating the progress of new technology for fluorite beneficiation. [0003] The composition of fluorite ore is relatively complicated. The traditional beneficiation process generally heats the pulp, uses sodium carbonate to adjust the pH value o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/001B03D101/02B03D101/06B03D103/04
CPCB03D1/001B03D2201/005B03D2201/007B03D2201/02B03D2201/06B03D2203/04
Inventor 曹玉宽
Owner ANHUI JINYANG FLUORINE CHEM
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