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Extraction material for separating cerium and preparation method thereof

An extraction and zinc oxide technology, which is applied in the field of extraction materials and preparation of cerium separation, can solve the problem of low extraction rate of solid phase extraction agent, achieve the effect of improving microscopic electrical behavior, simple operation, improving orientation and extraction capacity

Active Publication Date: 2021-04-02
XUZHOU NANFANG YONGCI MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent No. CN201910648565.3 "Preparation method and application of P204-doped polythiophene light rare earth solid-phase extractant" discloses a P204 The preparation method and application of polythiophene-doped light rare earth solid-phase extractant, the solid-phase extractant prepared by doping polythiophene with extractant P204 extracts light rare-earth elements, and the doped polythiophene solid powder is used as solid-phase extractant, The rare earth elements are transferred from the rare earth solution to the solid powder by solid-liquid extraction, and separated by centrifugation to realize the extraction of rare earth from the aqueous solution. The separation operation of the invention is simple, and the doped polythiophene powder is used as the solid extractant. Inexpensive, high stability, difficult to produce emulsification, no need for saponification, reducing the discharge of ammonia nitrogen waste liquid, but the extraction rate of the P204 doped polythiophene light rare earth solid phase extraction agent is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation that separates the extraction material of cerium, comprises the steps:

[0030] S1, prepare modified trioctylamine, comprise the steps:

[0031] S11. Preparation of trioctylamine: put n-octyl alcohol and n-octylamine into the reaction cylinder with a molar ratio of 3:1.2 and stir, then add nickel catalyst and mordenite and stir to obtain a mixture, then add nickel catalyst and mordenite Stirring, wherein the addition of zeolite is 3wt%, and the nickel catalyst is selected as Raney nickel with a particle size of 300 μm, and the addition is 4.2wt%, to obtain a mixture; add cooling water to the mixture for heating; when the temperature rises to 110°C Open the steel cylinder when it is nearby, and control the ammonia flow to be stable and uniform with small bubbles; when the temperature rises above 165°C, the reaction starts, at this time, the reaction temperature is controlled at 165-178°C, and after more than 20 hours of continuous reaction, observe ...

Embodiment 2

[0039] A kind of preparation that separates the extraction material of cerium, comprises the steps:

[0040] S1, prepare modified trioctylamine, comprise the steps:

[0041] S11. Preparation of trioctylamine: Put n-octanol and n-octylamine into the reaction cylinder with a molar ratio of 3:1.3 and stir, then add nickel catalyst and mordenite and stir to obtain a mixture, then add nickel catalyst and mordenite Stirring, wherein the addition of zeolite is 4wt%, and the nickel catalyst is selected as Raney nickel with a particle size of 250 μm, and the addition is 4.4wt%, to obtain a mixture; add cooling water to the mixture for heating; when the temperature rises to 110°C Open the steel cylinder when it is nearby, and control the ammonia flow to be stable and uniform with small bubbles; when the temperature rises above 165°C, the reaction starts, at this time, the reaction temperature is controlled at 165-178°C, and after more than 20 hours of continuous reaction, observe the wa...

Embodiment 3

[0049] A kind of preparation that separates the extraction material of cerium, comprises the steps:

[0050] S1, prepare modified trioctylamine, comprise the steps:

[0051] S11. Preparation of trioctylamine: Put n-octyl alcohol and n-octylamine into the reaction cylinder with a molar ratio of 3:1.4 and stir, then add nickel catalyst and mordenite and stir to obtain a mixture, then add nickel catalyst and mordenite Stirring, wherein the addition of zeolite is 5wt%, and the nickel catalyst is selected as Raney nickel with a particle size of 200 μm, and the addition is 4.6wt%, to obtain a mixture; add cooling water to the mixture for heating; when the temperature rises to 110°C Open the steel cylinder when it is nearby, and control the ammonia flow to be stable and uniform with small bubbles; when the temperature rises above 165°C, the reaction starts, at this time, the reaction temperature is controlled at 165-178°C, and after more than 20 hours of continuous reaction, observe ...

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Abstract

The invention discloses an extraction material for separating cerium and a preparation method thereof. The extraction material for separating cerium is obtained by mixing and stirring a mixture of modified trioctylamine and acid-applied aluminum oxide zinc oxide polyacetylene, placing the mixture at 75-85 DEG C for heat preservation for 1-2 h, then cooling the mixture to the room temperature and stirring the mixture for 10-20 min at the room temperature, wherein the modified trioctylamine is formed by mixing and stirring di (2-ethylhexyl) phosphate and trioctylamine, the aluminum-zinc oxide polyacetylene mixture is formed by mixing and stirring cyclopentanoic acid and aluminum oxide-zinc oxide polyacetylene mixture, the preparation process is simple, the cost is low, the prepared extraction material is high in extraction rate of cerium in rare earth, and emission of ammonia nitrogen waste liquid can be reduced. The extraction material is green and environment-friendly and can be widelyused for extracting rare earth elements.

Description

technical field [0001] The invention belongs to the field of rare earth hydrometallurgy and the technical field of solid phase extraction, and specifically relates to an extraction material for separating cerium and a preparation method. Background technique [0002] Conventional methods for extracting rare earth elements include: separation methods such as step-by-step method, ion exchange method, and solvent extraction method. Among them, solvent extraction method can selectively separate very similar metals, and has become a common method for extracting and separating rare earth elements in domestic and foreign rare earth industrial production. main method. However, the traditional rare earth element extraction method has many problems in the process of extracting rare earth elements, such as organic solvent volatilization, complicated separation operation, easy emulsification, secondary pollution, and a large amount of organic waste that is difficult to handle, etc., whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C22B59/00C22B3/40
CPCB01J20/265B01J20/3085C22B59/00Y02P10/20
Inventor 张作州刘强
Owner XUZHOU NANFANG YONGCI MATERIAL
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