Composite collecting agent and application thereof in chalcopyrite flotation

A technology of composite collectors and agents, applied in flotation, solid separation, etc., can solve problems such as poor merger effect, sticky flotation foam, serious entrainment of flotation foam, etc., to reduce foam entrainment and improve foam stickiness , low cost effect

Active Publication Date: 2021-04-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, in sulfide ore flotation, due to the characteristics of the reagents, the flotation fo

Method used

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  • Composite collecting agent and application thereof in chalcopyrite flotation

Examples

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Example Embodiment

[0031]Example 1:

[0032]A composite collector of the present invention, 2-phosphonate-1,2,4-triecarboxylic acid and dibly hydrazine of mass ratio of 8: 2.

[0033]The composite inhibitor of the present embodiment is applied to a brass mine in Gansu (Cu product is 0.45%, and the pulse stone is mainly quartz, square solution, Huangli and magnetite).figure 1As shown, the specific process is as follows: First, the brass mine is mainly grounded to 70.074 mm, and the mass ratio of -0.074 mm ore is 70%, the slurry concentration is 45%, and then the sodium carbonate is adjusted to 8, and the composite inhibitor is added. (Mixture of water glass, propanoic acid and sodium carboxymethylcellulose sodium mass) and a composite collector (1-phosphonate-1,2,4-tricarboxylic acid) , Then add but yellow medicine, 2-phosphonate-1,2,4-tricarboxylic acid and butterpartum mass ratio of 8: 2, and the agent of the composite capture agent needs to be separated separately. After room temperature, a crude four-fre...

Example Embodiment

[0055]Example 2:

[0056]A composite trapping of the present invention comprises a mass ratio of 6: 4 having a trimethylphosphonoate and acetine nitrogen.

[0057]The composite inhibitor of the present embodiment is applied to a high-grade brass mine in Tibet (Cu product is 0.65%, and the pulse mineral is mainly the flotation process of quartz, Changshi and Hui Stone, and the yellow iron ore content. The process is as follows: Under -0.074 mm, the mass ratio of -0.074 mm ore is 65%, the slurry concentration is 40%, then the sodium carbonate is adjusted to 9, and the composite inhibitor (mass of 6) is added. : 3: 1 water glass, oxalic acid and carboxymethylcellulose sodium) and composite collectors (first addition of trimethylphosphonomethyl acetate, then ethyl nitrogen, trimethylphosphonoate and B The mass ratio of the sulfur nitrogen is 6: 4, and the agent of the composite capture agent needs to be added separately during the subsequent process), and a crude three-precision is 350 g / t ...

Example Embodiment

[0058]Example 3:

[0059]A composite trapping of the present invention comprising 2-hydroxyphosphononic acid and butlammonium butmony ammonium drugs having a mass ratio of 7: 3.

[0060]The composite inhibitor of the present embodiment is applied to a high-sulfur low-copper-copper-copper mine (Cu product is 0.34%, and the pulse mineral is mainly the flotation process of Huangding, Changshi and Dolomite, and a small quantity of quartz). The specific process is as follows: Under -0.074 mm, the mass ratio of ore is 60%, and the slurry concentration is 35%, then the sodium carbonate is adjusted to 10, and the composite inhibitor (mass ratio is 6: 1). 3 of the mixture of water glass, malonic acid and carboxymethylcellulose sodium sodium) and composite trapping (2-hydroxyphosphonic acid first, additional butmite black drug, and 2-hydroxyphosphonic acid and The mass ratio of butmantantal black medicine is 7: 3, and the drugs of the composite capture agent are added separately from the subsequent...

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Abstract

The invention discloses a composite collecting agent which comprises an organic carboxylic acid organic matter and a xanthate medicament in a mass ratio of (6-8): (2-4). The invention also discloses application of the composite collecting agent in chalcopyrite flotation, which comprises the following steps: crushing and grinding chalcopyrite, adding the composite collecting agent and an inhibitorinto ore pulp under the conditions of proper ore pulp concentration, fineness and pH, stirring, adding a foaming agent, and carrying out flotation. When the composite collecting agent is applied to mineral separation of chalcopyrite and gangue, oxygen in phosphonic acid (phosphonyl) and carboxylic acid (carboxylate) functional groups in organic carboxylic acid organic matters of a main agent can be selectively combined with copper and iron sites on the surface of the chalcopyrite, so that selective separation of the chalcopyrite and the gangue is realized; and the strong collecting property ofthe auxiliary agent xanthate can strengthen recovery of the chalcopyrite and improve foam merging, the synergistic effect of the two agents greatly improves the grade and the recovery rate of copperconcentrate, and the effect is superior to that of a traditional xanthate collecting agent.

Description

technical field [0001] The invention belongs to the technical field of chalcopyrite flotation separation and impurity removal, and in particular relates to a composite collector and its application in chalcopyrite flotation. Background technique [0002] Copper is an important non-ferrous metal, which is widely used in construction industry and defense industry. Chalcopyrite is the main occurrence mineral of copper, but it often coexists with sulfide minerals such as pyrite. Flotation is the most common separation method for sulfide minerals such as chalcopyrite and pyrite, but due to the similar buoyancy of the two minerals, it is difficult to separate the two minerals. At the same time, due to the activation of metal ions such as copper and the entrainment of foam during the flotation process, aluminosilicate gangues such as quartz, feldspar and dolomite float up, reducing the grade of chalcopyrite. [0003] In order to realize the separation of sulfide minerals such as ...

Claims

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Application Information

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IPC IPC(8): B03D1/014B03D1/02B03D101/02B03D103/02
CPCB03D1/014B03D1/02B03D2201/02B03D2203/02
Inventor 孙伟王建军高志勇胡岳华江哲伊景高贵陶黎明汪聪伍思回苗泽坤范瑞华
Owner CENT SOUTH UNIV
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