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Nanometer metal-organic carboxylic acid complex colloid collector and production and application as metallic mineral flotation collector thereof

A technology of organic carboxylic acid and nano-metal, which is applied in flotation, solid separation, etc., can solve the problems of low resource utilization rate, difficult to improve selectivity, poor selectivity, etc., and achieve strong harvesting capacity Effect

Active Publication Date: 2019-09-13
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, calcium-containing minerals and gangue minerals have similar surface chemical properties, and it is difficult for these traditional anion collectors to improve their selectivity and novelty qualitatively.
For example: scheelite, fluorite, calcite, etc. are all calcium-containing minerals. Traditional collectors interact with the mineral surface through calcium particles at the same time, and the selectivity is poor; a large amount of copper, iron, lead, calcium and other metals in the cassiterite flotation system Ions are adsorbed on the surface of minerals, which makes the surface properties of cassiterite and gangue minerals converge. Traditional anion collectors are difficult to efficiently and selectively adsorb, resulting in low resource utilization, high energy consumption and cost in the production process, and prominent environmental problems in the beneficiation process.

Method used

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  • Nanometer metal-organic carboxylic acid complex colloid collector and production and application as metallic mineral flotation collector thereof
  • Nanometer metal-organic carboxylic acid complex colloid collector and production and application as metallic mineral flotation collector thereof
  • Nanometer metal-organic carboxylic acid complex colloid collector and production and application as metallic mineral flotation collector thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Prepare 8mL of 0.5mol / L calcium chloride solution and 100mL of 0.1mol / L oleic acid ethanol solution respectively, add sodium hydroxide to the oleic acid solution to adjust the pH to 9, heat it to about 60°C, and slowly add to the oleic acid solution Add calcium chloride solution, and the reaction time is 1.5h; transfer the obtained oleic acid-calcium complex solution into a stirring tank, add 30g of magnetite powder with a particle size range of 10-37μm, mix and stir for 15min, and then use the magnetic strength as The 1000GS dry-type permanent magnet magnetic separator is magnetically separated, and the magnetic products are collected and filtered; the magnetite powder is transferred into an ethanol solution, and is shaken and washed by an ultrasonic scrubber, so that the oleic acid adsorbed on the surface of the magnetite - Desorption of the calcium complex to obtain the oleic acid-calcium complex-ethanol mixture. The mixture was dried at room temperature to obtain ol...

Embodiment 2

[0066] The experimental conditions were the same as in Example 1, except that the ratios of 20 mL of 0.5 mol / L calcium chloride solution and 100 mL of 0.1 mol / L oleic acid ethanol solution to oleic acid were different:

[0067] The example is C Ca / C 油酸 =Nano oleic acid-calcium complex colloidal collector prepared under the condition of 1:1.

Embodiment 3

[0069] The experimental conditions were the same as in Example 1, except that the ratio of calcium chloride to oleic acid was different: 40 mL of 0.5 mol / L calcium chloride solution and 100 mL of 0.1 mol / L oleic acid ethanol solution.

[0070] The example is C Ca / C 油酸 =Nano oleic acid-calcium complex colloidal collector prepared under the condition of 2:1.

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Abstract

The invention discloses a nanometer metal-organic carboxylic acid complex colloid collector and a production method and application thereof. The nanometer metal-organic carboxylic acid complex colloidcollector is nanometer colloid particles formed by a metal-organic carboxylic acid complex; and the metal-organic carboxylic acid complex is generated from organic carboxylic acid and metal ions witha valance 2 or above under an alkaline condition. The collector has strong selective collection capability for metal minerals of calcite, scheelite, fluorite and the like, and can be used individually or can be subjected to functional synergistic assembly with an assistant surfactant to improve the collection capability and a foam structure of the collector so as to form an efficient flotation agent of metal minerals which contain tungsten, calcium, phosphorus and the like, and the production method of the nanometer metal-organic carboxylic acid complex colloid collector is simple and low incost, so that industrial production is benefited.

Description

technical field [0001] The present invention relates to an organometallic ion complex, in particular to a nanometer metal-organic carboxylic acid complex colloidal collector and methods for its preparation, separation and purification, and also to a nanometer metal-organic carboxylic acid complex colloidal collector It is used as a flotation collector for metal minerals such as scheelite, fluorite, calcite, etc., and belongs to the field of mineral processing technology. Background technique [0002] The Nanling metallogenic belt is one of the 16 metallogenic belts in China. The output of tungsten, tin, bismuth, lead, zinc, and rare earth ranks among the top in the country. Among them, tungsten and tin are important strategic mineral resources, and their protection is related to the national Long-term stable economic development and national security. However, the composition of low-grade associated resource ores, which account for the main resource reserves, is becoming mo...

Claims

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Application Information

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IPC IPC(8): B03D1/008B03D101/02B03D103/02
CPCB03D1/008B03D2201/02B03D2203/02
Inventor 韩海生孙文娟孙伟胡岳华王若林卫召王丽杨越唐鸿鹄
Owner CENT SOUTH UNIV
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