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Composite amido weak-base aion exchange resin and method for recycling rhenium from arsenic sulfide residue extracting solution

A weakly basic anion and exchange resin technology, which is applied in anion exchange, ion exchange, chemical instruments and methods, etc., can solve the problems of complicated rhenium recovery process and low recovery rate, and achieve good product stability, environmental protection, and The effect of reducing the loss of rhenium

Active Publication Date: 2017-12-29
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The second object of the present invention is to provide a method for recovering rhenium from the leaching solution of arsenic sulfide slag, so as to solve the technical problems of complex recovery process and low recovery rate of rhenium from the leaching solution of arsenic sulfide slag in the prior art

Method used

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  • Composite amido weak-base aion exchange resin and method for recycling rhenium from arsenic sulfide residue extracting solution

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Effect test

Embodiment 1

[0035] The composite amine-based weakly basic anion exchange resin of the present embodiment is prepared by a preparation method comprising the following steps:

[0036] Control the reaction temperature at 50°C, mix chloromethylated polystyrene-divinylbenzene cross-linked resin (chlorine balls) with diethanolamine, N,N-dioctylamine, N-methylimidazole, and diglycolic anhydride in Stir and react in methanol for 8 hours, filter after the reaction, wash with methanol three times, and dry the resin in vacuum at 55°C to obtain; The mass ratio of diglycolic anhydride is 10:10:25:10:10.

[0037] This embodiment adopts the method of reclaiming rhenium from the leaching solution of arsenic sulfide slag using the above-mentioned composite amine-based weakly basic anion exchange resin, such as figure 1 shown, including the following steps:

[0038] 1) Take 1L of the above composite amine-based weakly basic anion exchange resin and put them into 4 ion exchange columns connected in series...

Embodiment 2

[0042] The composite amine-based weakly basic anion exchange resin of the present embodiment is prepared by a preparation method comprising the following steps:

[0043] Mix chloromethylated polystyrene-divinylbenzene cross-linked resin (chlorine balls) with diethanolamine, N,N-dioctylamine, N-methylimidazole, and diglycolic anhydride in methanol at 70°C Stir the reaction for 6 hours, filter after the reaction, wash with methanol for 5 times, and then dry it in vacuum at 60°C to obtain; chlorine balls and diethanolamine, N,N-dioctylamine, N-methylimidazole, The mass ratio of alkyd anhydride is 10:15:30:8:12.

[0044] In this embodiment, the method for recovering rhenium from the leach solution of arsenic sulfide slag using the above-mentioned composite amine-based weakly basic anion exchange resin comprises the following steps:

[0045] 1) Take 1L of the above compound amine-based weakly basic anion exchange resin and put them into 4 ion exchange columns connected in series (...

Embodiment 3

[0049] The composite amine-based weakly basic anion exchange resin of the present embodiment is prepared by a preparation method comprising the following steps:

[0050] Mix chloromethylated polystyrene-divinylbenzene cross-linked resin (chlorine balls) with diethanolamine, N,N-dioctylamine, N-methylimidazole, and diglycolic anhydride in methanol at 80°C Stir the reaction for 6 hours, filter after the reaction, wash with methanol for 4 times, and then dry it in vacuum at 65°C to obtain; The mass ratio of alkyd anhydride is 10:20:30:15:8.

[0051] In this embodiment, the method for recovering rhenium from the leach solution of arsenic sulfide slag using the above-mentioned composite amine-based weakly basic anion exchange resin comprises the following steps:

[0052] 1) Take 1L of the above composite amine-based weakly basic anion exchange resin and put them into 4 ion exchange columns connected in series (each column is filled with 0.25L resin), and first soak it in 2L of 0.6...

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Abstract

The invention relates to a composite amido weak-base aion exchange resin and a method for recycling rhenium from arsenic sulfide residue extracting solution, and belongs to the fields of wet type metallurgy and comprehensive recycling of secondary resources. The composite amido weak-base aion exchange resin is prepared by a preparation method with the following steps of enabling chloride spheres, diethanol amine, N,N-dioctyl amine, N-methylimidazole and diglycol anhydride to react in an organic solvent for 6 to 12h at the temperature of 50 to 80 DEG C according to a mass ratio of 10:(8 to 20):(20 to 40):(5 to 15):(8 to 12) and then performing filtration. The composite ammine weak alkaline ion exchange resin has the advantages that the raw materials are common chemical reagents, the cost is low, the product stability is good, and the good selective adsorption on rhenium in the rhenium-containing solution with higher acidity and high concentration of impurity ions is realized.

Description

technical field [0001] The invention relates to a compound amine-based weakly basic anion exchange resin and a method for recovering rhenium from arsenic sulfide slag leaching solution, belonging to the fields of hydrometallurgy and comprehensive recovery of secondary resources. Background technique [0002] As a precious rare metal, rhenium plays an irreplaceable role in aerospace, electrical machinery, electronics and other fields due to its high melting point, excellent plasticity, and stable mechanical properties, so it has high military value. Rhenium has no independent deposits in nature, and is mainly distributed in molybdenite and chalcopyrite in porphyry copper-molybdenum deposits. At present, the raw materials for the production of rhenium mainly include arsenic sulfide slag produced by the copper pyrometallurgy system, waste acid from copper smelting, waste acid from molybdenum smelting, rhenium-containing alloys and waste rhenium-containing catalysts. In the cop...

Claims

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Application Information

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IPC IPC(8): B01J41/14C22B61/00C22B7/00
CPCB01J41/14C22B7/006C22B61/00Y02P10/20
Inventor 王威刘红召张博赵恒勤柳林王洪亮宁杨坤
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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