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
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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

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

Examples

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Example Embodiment

[0034] Example 1

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

[0036] Control the reaction temperature at 50℃, and combine the chloromethylated polystyrene-divinylbenzene crosslinked resin (chlorine ball) with diethanolamine, N,N-dioctylamine, N-methylimidazole, and diglycolic anhydride. Stir and react in methanol for 8 hours. After the reaction, it is filtered and washed with methanol 3 times. The resin is dried in vacuum at 55°C to obtain; chlorine ball, diethanolamine, N,N-dioctylamine, N-methylimidazole, The mass ratio of diethylene glycol anhydride is 10:10:25:10:10.

[0037] In this embodiment, the above-mentioned composite amine-based weakly basic anion exchange resin is used to recover rhenium from the arsenic sulfide residue leachate, such as figure 1 As shown, including the following steps:

[0038] 1) Take 1L of the above composite amine-based weakly basic anion ...

Example Embodiment

[0041] Example 2

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

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

[0044] In this embodiment, the method for recovering rhenium from the arsenic sulfide residue leachate by using the above-mentioned composite amine-based weakly basic anion exchange resin includes the following steps:

[0045] 1) Take 1L of the above composite amine-based weakly basic anion exchange resin into 4 ion exchange columns connected in series (each column i...

Example Embodiment

[0048] Example 3

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

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

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

[0052] 1) Take 1L of the above composite amine-based weakly basic anion exchange resin into 4 ion exchange columns connected in series (each colum...

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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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