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Method for recovering specular stone from debris containing specular stone

A technology for mica tailings and mica, which is applied in solid separation, flotation and other directions, can solve the problems of high cost, harsh medium conditions and environment, low recovery rate, etc., and achieve the effects of low cost, high flotation efficiency and simple process

Inactive Publication Date: 2008-05-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two existing technologies need to carry out desliming of mineral powder in advance, and the medium conditions and environment are harsh. Although the process is not complicated, the recovery rate is low and the cost is high

Method used

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  • Method for recovering specular stone from debris containing specular stone

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] After the tailings powder containing mica is removed through a cyclone or chute to remove single minerals and cuttings above 100 mesh, it is prepared into a slurry with a concentration of 20-40%; then add inhibitors, regulators and collectors in sequence, After stirring evenly, pour it into the flotation tank for flotation.

[0015] Take 1000g of tailings from Shandong Jiaojia Metal Mine Concentration Plant, remove rock debris > 160 mesh particles and single minerals such as feldspar, quartz and hornblende through a cyclone, and add water to the remaining slurry to adjust its concentration to 30%, add 0.5g cornstarch successively, dissolve cornstarch in hot water above 70℃, and stir until transparent, lead sulfate 0.5g, sulfuric acid 0.002L, dodecylamine 0.05g, dodecylamine 0.05g Add after dissolving in 0.25L of 10% sulfuric acid, stir evenly and pour into flotation tank for flotation. After the first flotation, the mica grade is over 90%, and the second selected mica ...

Embodiment 2

[0017] After the tailings powder containing mica is removed through a cyclone or chute to remove single minerals and cuttings above 100 mesh, it is prepared into a slurry with a concentration of 20-40%; then add collectors, inhibitors and regulators in sequence, After stirring evenly, pour it into the flotation tank for flotation.

[0018] Take 1000g of tailings from Shandong Zhaoyuan Metal Mine Concentration Plant, remove rock debris > 160 mesh particles and single minerals such as feldspar, quartz and hornblende through a cyclone, and add water to the rest to adjust the concentration to 40%, add in sequence, cornstarch 0.4g / , dissolve cornstarch in hot water above 70°C, and stir until transparent, lead-containing nitrate 0.35g, add sulfuric acid 3L with a concentration of 90%, dodecylamine 0.08 g, 0.08g of dodecyl ammonium is dissolved in 0.4L of 7% sulfuric acid and added, stirred evenly and then poured into a flotation tank for flotation. After the first flotation, the gr...

Embodiment 3

[0020] After the tailings powder containing mica is removed through a cyclone or chute to remove single minerals and cuttings above 100 mesh, it is prepared into a slurry with a concentration of 20-40%; then add collectors, inhibitors and regulators in sequence, After stirring evenly, pour it into the flotation tank for flotation.

[0021] Take 1000g of tailings from Shandong Jincheng Metal Mine Concentration Plant, and remove rock debris > 160 mesh particles and single minerals such as feldspar, quartz and hornblende through a cyclone, and add water to the rest to adjust the concentration to 20 %, cornstarch 0.3g, cornstarch dissolved in hot water above 70°C, and stirred until transparent, lead hydrochloride 0.2g, hydrochloric acid with a concentration of 90% 0.002L, dodecylamine 0.1g, 0.1g dodecyl Ammonium is dissolved in 0.5L of 5% hydrochloric acid and added, stirred evenly and then poured into a flotation cell for flotation. After the first flotation, the mica grade is o...

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Abstract

The invention relates to a separation process of non-metallic minerals, in particular to a method of recovering mica from tailings of clean mill in metal mines. After getting rid of single minerals and cuttings of over 100 meshes by a hydrocyclone or a chute, tailing powder that contains mica is mixed to slurry with the concentration of 20% to 40%, is added in sequence with inhibitor, regulator and collector, and is poured into a flotation cell for flotation after fully churning. The method needs no predesliming, mica of over 90% purity can be acquired by one separation, 99% purity can be acquired by twice separation, the flotation efficiency is high, the technique is simple and the cost is low.

Description

Technical field: [0001] The invention relates to a sorting process of non-metallic ore, in particular to a method for recovering mica from the tailings of a metal ore concentrating plant. Background technique: [0002] Mica is a non-metallic mineral with a wide range of applications, especially fine mica, which is widely used in material industry, coating industry, chemical industry, cosmetics and other industries. Most of the concentrator tailings of metal mines in old metamorphic rock areas contain mica. In the past, they were discarded as waste residues into tailing pits, or backfilled into waste tunnels as waste residues, and were hardly used. In recent years, due to the development of the cosmetics industry and the paint industry, people have begun to pay attention to mica. The existing methods for sorting mica include acidic cation flotation method and alkaline anion-cation flotation method, acidic cation flotation method, 100-200 mesh ore sand needs to be deslimed in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/01B03D1/004B03D1/002B03D1/018B03B1/00B03B1/04B03D101/02B03D101/06B03D103/04
Inventor 张渊李俊锋张五荣
Owner JILIN UNIV
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