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Organic modified montmorillonite adsorbent for removing xanthate and application of adsorbent

A montmorillonite and adsorbent technology, applied in the field of organically modified montmorillonite adsorbents, can solve problems such as complex operation, high processing cost, and long time period, and achieve stable physical and chemical properties, wide sources, and mechanical stability Good results

Inactive Publication Date: 2019-04-19
JIANGXI UNIV OF SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

Most of these methods have the disadvantages of complicated operation, high processing cost and long time period.

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  • Organic modified montmorillonite adsorbent for removing xanthate and application of adsorbent
  • Organic modified montmorillonite adsorbent for removing xanthate and application of adsorbent
  • Organic modified montmorillonite adsorbent for removing xanthate and application of adsorbent

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0037] The invention provides an organically modified montmorillonite adsorbent for removing xanthate and application thereof.

[0038] The adsorbent of the present invention uses montmorillonite as the original modified matrix, and is obtained by modifying the montmorillonite with 1,4-butyl-bis(dodecyldimethylammonium bromide). The specific preparation steps are as follows:

[0039] (1) Mix and dissolve a certain amount of dodecyldimethylammonium bromide and 1,4-dibromobutane in ethanol, and reflux at 75-90°C for 2-3 days to obtain solution A1;

[0040](2) Place solution A1 in a vacuum rotary evaporator set at 70-85°C under reduced pressure and react for 1-2 hours to obtain 1,4-butyl-bis(dodecyldimethylammonium bromide) crude product;

[0041] (3) The...

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Abstract

The invention provides an organic modified montmorillonite adsorbent for removing xanthate and application of the adsorbent, and belongs to the technical field of environment repairing reagents. The adsorbent is obtained by using montmorillonite as the original modification matrix and modifying the montmorillonite through organically-synthesized 1,4-butyl-bis(dodecyl dimethyl ammonium bromide). The adsorption amounts of the adsorbent for ethyl, isobutyl and isoamyl xanthate can reach 76.1 mg / g, 92.9 mg / g and 105.0 mg / g respectively. The adsorbent has the large and uniform interlayer space, theinterlayer hydrophobicity and lipophilicity are enhanced, and the adsorbent has the advantages of being high in adsorption efficiency, rapid in speed, large in adsorption capacity and the like for the xanthate and is suitable for the mining industrial wastewater field and particularly suitable for beneficiation wastewater subsequent purifying treatment with the xanthate as the flotation agent.

Description

technical field [0001] The invention relates to the technical field of environmental restoration agents, in particular to an organically modified montmorillonite adsorbent for removing xanthate and its application. Background technique [0002] Xanthate, also known as hydrocarbyl xanthate, consists of hydrocarbyl (R), solidophilic group (OCSS–) and basic metal Me(Na + 、K + ), its general formula is——ROSSMe. Xanthate is often used in the flotation production of pyrite and non-ferrous metal minerals, and is the most commonly used anion collector in the mineral processing industry. Xanthate is in the form of light yellow powder with a strong pungent odor, is easily soluble in water, and is very easy to damage the water environment, resulting in foul smelling water and seriously affecting the ecological balance of nearby waters. The toxicity of xanthate to human body and animals is mainly reflected in the damage to the nervous system, liver and other organs, and even damage t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/30
CPCB01J20/12B01J20/22B01J2220/46B01J2220/4806B01J2220/4812C02F1/281C02F1/285C02F2101/30
Inventor 罗武辉黄祈栋李鑫任嗣利黄志强
Owner JIANGXI UNIV OF SCI & TECH
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