Molybdenum-rhenium separation trialkylamine leaching resin and preparation method thereof

An alkylamine leaching resin, alkylamine leaching technology, applied in the direction of improving process efficiency, can solve problems such as difficulty in functional group bonding, complexity of synthesis, loss of extractant, etc., to achieve convenient storage and transportation, solvent The effect of fast extraction speed and large separation coefficient

Inactive Publication Date: 2011-12-07
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although extraction and separation technology has been widely used in the field of separation, the extractant is easy to form a third phase, resulting in difficulties in separation and loss of extractant.
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Method used

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  • Molybdenum-rhenium separation trialkylamine leaching resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1 Molybdenum-rhenium separation with trialkylamine extraction and leaching resin

[0016] Add 5 kg of extractant N235 and 10 kg of SiO with a pore size of 100-200 mesh in the reaction kettle 2 , after stirring for 30 minutes, put it into a drying oven, and dry it at 50°C for 24 hours. Put the dried product into the reactor again, add 5 kg of epoxy resin, 1.5 kg of triethylenetetramine, and 2 kg of ethylene glycol monobutyl ether, stir for 2 hours at 25 ° C, filter, and dry to obtain the extractant Molybdenum-rhenium separation trialkylamine leaching resin with 41% N235 content, particle size 100-200 mesh.

Embodiment 2

[0017] Example 2 Molybdenum-rhenium separation with trialkylamine leaching resin

[0018] Add 8 kg of extractant N235 and 10 kg of SiO with a pore size of 100-200 mesh in the reaction kettle 2 , after stirring for 30 minutes, put it into a drying oven, and dry it at 50°C for 24 hours. Put the dried product into the reactor again, add 8 kg of epoxy resin, 2.5 kg of triethylenetetramine, and 3 kg of ethylene glycol monobutyl ether, stir for 2 hours at 25 ° C, filter, and dry to obtain the extractant Molybdenum-rhenium separation resin with 42% N235 content and a particle size of 100-200 mesh.

Embodiment 3

[0019] Example 3 Molybdenum-rhenium separation with trialkylamine extraction and leaching resin

[0020] Add 10 kg of extractant N235 and 10 kg of SiO with a pore size of 100-200 mesh in the reaction kettle 2 , after stirring for 30 minutes, put it into a drying oven, and dry it at 50°C for 24 hours. Put the dried product into the reactor again, add 10kg of epoxy resin, 3.5kg of triethylenetetramine, and 3.5kg of ethylene glycol monobutyl ether, stir at 25°C for 2 hours, filter, and dry to obtain the extractant Molybdenum-rhenium separation resin with 48% N235 content and a particle size of 100-200 mesh.

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Abstract

The invention relates to a trialkylamine extraction resin for molybdenum-rhenium separation and a preparation method thereof. The technical scheme adopted is: the trialkylamine extraction resin for molybdenum-rhenium separation uses epoxy resin as the skeleton, silica as the carrier, the extraction agent is N235, its content is 40%-50%, and the particle size is 100-200 mesh. The invention also discloses a preparation method of the extraction resin. The extraction resin provided by the invention not only has the characteristics of fast solvent extraction speed and large capacity, but also has the advantages of solid-liquid separation and no organic solvent loss pollution. The extraction resin prepared by the invention can effectively separate molybdenum and rhenium, and the molybdenum-rhenium separation coefficient is large, which not only brings into play the advantages of the solvent extraction process, but also eliminates the emulsification problem caused by extraction, and can be widely used in industrial eluents, industrial Separation and recovery of rhenium in wastewater and polluted rivers.

Description

technical field [0001] The invention belongs to the field of leaching resins and preparation methods thereof, in particular to a leaching resin using trialkylamine as an extraction agent for separating molybdenum-rhenium and a preparation method thereof. Background technique [0002] Scattered metal rhenium is one of the non-ferrous metals with the least reserves on the earth. It has a high melting point, high strength, good plasticity, and excellent mechanical stability. It is a supporting material for today's high-tech and is widely used in information, aerospace, medical, Many sectors of the national economy, such as military industry and high-tech equipment, have increasingly attracted the attention of material scientists from various countries. However, there are almost no independent deposits of rhenium metals, and they mainly coexist with trace components in molybdenum concentrates. Since the chemical properties of molybdenum and rhenium are very similar, the separat...

Claims

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Application Information

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IPC IPC(8): C22B3/26C22B34/34C22B61/00
CPCY02P10/20
Inventor 熊英单炜军娄振宁房大维李鸿图
Owner LIAONING UNIVERSITY
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