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Collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid and application of collector

A technology of aromatic phosphonic acid and collector, which is applied in solid separation, flotation, etc., can solve the problems of insufficient hydroxamic acid collection capacity, reduced selectivity, and poor water solubility, and is suitable for large-scale industrial applications, Enhanced selectivity and strong hydrophobicity

Active Publication Date: 2018-06-22
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selectivity of fatty acid and alkyl sulfosuccinic acid collectors is extremely poor, the collection ability of hydroxamic acid is insufficient, and the use of arsenic acid collectors is prohibited due to their toxicity. Only phosphonic acid collectors can be used in industry Among the phosphonic acid collectors, short-chain alkyl phosphonic acid can be used for flotation to recover cassiterite, but the collection capacity is insufficient, and heavy metal salts (such as lead nitrate) need to be used for synergistic effect. Causes problems such as rising costs and water pollution; long-chain alkylphosphonic acid has strong collection capacity, but poor water solubility and greatly reduced selectivity, which limits its application in industry

Method used

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  • Collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid and application of collector
  • Collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid and application of collector
  • Collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid and application of collector

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Effect test

Embodiment 1

[0026] Flotation of Artificial Mixed Ore

[0027] (1) The pure minerals of cassiterite and quartz pure minerals, fluorite pure minerals, and calcite pure minerals are prepared into artificial mixed ore according to the mass ratio of 1:1, and the particle size of all pure minerals is -45 μm;

[0028] (2) Get artificial mixed ore 2g and 20mL distilled water to be placed in the hanging tank flotation machine of 30mL, under the stirring speed of 1992r / min, adjust slurry for 3min, obtain cassiterite ore slurry;

[0029] (3) Use sodium hydroxide and sulfuric acid to adjust the pH value of cassiterite pulp to 7, add cassiterite collector (phenylphosphonic acid and / or phenylphosphonic acid and its salts), and the concentration of cassiterite collector is 60mg / L, after stirring for 3min, add foaming agent (methyl isobutyl carbinol), the concentration of foaming agent is 100mg / L, after stirring for 3min, inflate flotation, obtain foam product and remaining tailings in the tank;

[003...

Embodiment 2

[0035] The raw ore of a cassiterite mine in Inner Mongolia is selected as the raw material. The tin grade in the raw ore is 0.37%, and the gangue minerals are quartz, feldspar, mica, calcite and kaolin.

[0036] The amount of chemicals used in the flotation process is as follows: in the roughing process, the amount of carboxymethyl cellulose added to the original ore is 250g / t, the amount of sodium silicate added to the original ore is 250g / t, phenylphosphonic acid and its salts The amount added relative to the original ore is 1500g / t, the amount of methyl isobutyl carbinol added relative to the original ore is 120g / t; during the sweeping process, the amount of phenylphosphonic acid and its salts added relative to the original ore is 750g / t , the amount of methyl isobutyl carbinol relative to the original ore is 80g / t; during the beneficiation process, the amount of carboxymethyl cellulose relative to the original ore is 100g / t, and the amount of sodium silicate relative to the...

Embodiment 3

[0043] The raw ore of a cassiterite mine in Jiangxi Province is selected as the raw material. The tin grade in the raw ore is 0.34%, and the gangue minerals are quartz, feldspar, mica and fluorite.

[0044] The amount of chemicals used in the flotation process is as follows: in the roughing process, the amount of carboxymethyl cellulose added to the original ore is 200g / t, the amount of sodium silicate added to the original ore is 200g / t, phenylphosphonic acid and its salt The amount of phenylphosphonic acid and its salts added to the raw ore is 1200g / t, the amount of methyl isobutyl carbinol added to the raw ore is 120g / t; during the sweeping process, the amount of phenylphosphonic acid and its salts added to the raw ore is 600g / t, the amount of methyl isobutyl carbinol relative to the original ore is 80g / t; during the beneficiation process, the addition of carboxymethyl cellulose relative to the original ore is 100g / t, and the addition of sodium silicate relative to the origin...

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Abstract

The invention discloses a collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid and application of the collector, and belongs to the technical field of flotation. The collector comprising aromatic phosphonic acid and salt of aromatic phosphonic acid comprises phenylphosphinic acid and salt of phenylphosphinic acid and / or phenyl phosphonic acid and salt of phenyl phosphonic acid and is applied to flotation separation of cassiterite and gangue minerals. The aromatic phosphonic acid and salt of aromatic phosphonic acid are used as the cassiterite collector, the collector water solubility is improved, the collector has good selectivity, cassiterite and the gangue minerals such as quartz, fluorite and calcite can be effectively separated, and the collector can achieve flotation of cassiterite under the condition with a wide pulp pH range.

Description

technical field [0001] The invention relates to the technical field of cassiterite flotation, in particular to an aromatic phosphonic acid and its salt collector and its application. Background technique [0002] Tin is one of the earliest metal materials developed and utilized by human beings. It plays an irreplaceable role in today's medical equipment, chemical industry, national defense, electronic appliances, marine engineering and other fields. Cassiterite is the only mineral that exists in nature that can be used to smelt metal tin, so the flotation recovery of cassiterite minerals is of great significance to ensure the development of the national economy. Due to the large specific gravity of cassiterite, coarse-grained cassiterite can be effectively recovered by gravity separation; however, cassiterite is brittle, and it is easy to produce a large amount of fine mud during the crushing and grinding process. When the particle size of cassiterite is less than 20μm , th...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02B03D101/04B03D101/06B03D103/04
CPCB03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 刘杰宫贵臣朱一民
Owner NORTHEASTERN UNIV
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