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Cassiterite flotation combined inhibitor and application thereof

A combined inhibitor and flotation technology, used in flotation, solid separation, etc., can solve the problem of lack of efficient selective inhibitors, and achieve the effect of improving grade, strong effect and less dosage

Active Publication Date: 2021-01-26
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cassiterite flotation combination inhibitor to solve the problem of lack of efficient and selective inhibitor for cassiterite flotation separation of calcium-containing minerals in the above-mentioned prior art

Method used

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  • Cassiterite flotation combined inhibitor and application thereof
  • Cassiterite flotation combined inhibitor and application thereof
  • Cassiterite flotation combined inhibitor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Combination inhibitor preparation:

[0031] Mix hydroxycitric acid and citric acid evenly according to the mass ratio of 1:1.

[0032] 2. Raw ore flotation:

[0033] The content of tin in the raw ore is 0.37%. The research results of craft mineralogy show that the main gangue minerals of this mine are quartz, fluorite and calcite. Specific steps are as follows:.

[0034] (1) After the raw ore is crushed, the ore is ground to -0.074mm, accounting for 80%. It is prepared into a slurry in the flotation tank and the pH value is adjusted to 6 with sodium hydroxide and sulfuric acid, and then 50g / t of combined inhibitor is added, 100g / t The SPA of t is used as a collector, and the 2# oil of 30g / t is used as a foaming agent. After roughing, roughing concentrate and roughing tailings are obtained;

[0035] (2) The rougher tailings after roughing are swept for three times, and 50g / t of SPA is added to each sweep, and the tailings obtained after three sweeps are the final t...

Embodiment 2

[0042] 1. Combination inhibitor preparation:

[0043] Mix hydroxycitric acid and citric acid evenly according to the mass ratio of 1:2.

[0044] 2. Raw ore flotation:

[0045] The content of tin in the raw ore is 0.34%. The research results of craft mineralogy show that the main gangue minerals of this mine are quartz, fluorite, calcite and feldspar. Specific steps are as follows:

[0046] (1) After the raw ore is crushed, the ore is ground to -0.074mm to account for 75%. It is prepared into a slurry in the flotation tank and adjusted to pH 8 with sodium hydroxide and sulfuric acid. Then add 40g / t combined inhibitor, 80g / t The SPA of t is used as a collector, and the 2# oil of 20g / t is used as a foaming agent, and roughing is carried out to obtain roughing concentrate and roughing tailings;

[0047] (2) The rougher tailings after roughing are swept three times, adding 40g / t of SPA for each sweep, and the tailings obtained after three sweeps are the final tailings;

[0048]...

Embodiment 3

[0054] 1. Combination inhibitor preparation:

[0055] Mix hydroxycitric acid and citric acid evenly according to the mass ratio of 1:1.5.

[0056] 2. Raw ore flotation:

[0057] The content of tin in the raw ore is 0.34%. The research results of craft mineralogy show that the main gangue minerals of this mine are quartz, fluorite, calcite and feldspar. Specific steps are as follows:

[0058] (1) After the raw ore is crushed, the ore is ground to -0.074mm to account for 75%. It is prepared into a slurry in the flotation tank and adjusted to pH 7 with sodium hydroxide and sulfuric acid. Then add 40g / t combined inhibitor, 80g / t The SPA of t is used as a collector, and the 2# oil of 20g / t is used as a foaming agent. After roughing, roughing concentrate and roughing tailings are obtained;

[0059] (2) The rougher tailings after roughing are swept three times, adding 40g / t of SPA for each sweep, and the tailings obtained after three sweeps are the final tailings;

[0060] (3) Afte...

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Abstract

The invention discloses a cassiterite flotation combined inhibitor and application thereof, and relates to the field of mineral flotation reagents, and the cassiterite flotation combined inhibitor isprepared by mixing hydroxy citric acid (HAC) and citric acid according to the mass ratio of 1: 1-1: 2. In the flotation process, 20-50 g of the combined inhibitor is correspondingly added into each ton of ore, the combined inhibitor has the advantages of being small in dosage, high in calcium-containing mineral acting effect, free of pollution to the environment and the like, and cassiterite and calcium-containing minerals can be effectively separated easily.

Description

technical field [0001] The invention relates to the field of mineral flotation reagents, in particular to a cassiterite flotation combined inhibitor and its application. Background technique [0002] At present, the gravity separation process is often used to obtain tin concentrate by processing cassiterite minerals, but this process has a better effect when processing tin ore with relatively simple properties. However, with the gradual reduction of easy-to-select ores, the flotation of complex and difficult-to-select tin ores has become the focus of flotation research. However, there are many problems in the flotation of complex and difficult tin ore. The main problem is that the calcium-containing minerals have good buoyancy and are difficult to suppress, which makes it difficult for the grade and recovery rate of tin concentrate to reach the standard. At the same time, traditional inhibitors will make the cassiterite Recycling is also affected to some extent. For comple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/008B03D1/02B03D1/08B03D101/06B03D103/04
CPCB03D1/008B03D1/02B03D1/082B03D1/087B03D2201/06B03D2203/04
Inventor 刘杰姜凯朱一民刘畅
Owner NORTHEASTERN UNIV