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Method and Application of Reducing Nitrification Degradation of Hydroxime Extractant

A technology for extracting agent and hydroxime is applied in the field of reducing nitrification and degradation of hydroxime extractant, which can solve the problems of deterioration of organic phase performance and affecting the normal operation of production, and achieves good commercial prospects, good stability, and the effect of reducing nitrification and degradation.

Active Publication Date: 2021-02-09
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the degradation products of "cannon fodder" continue to accumulate in the organic phase, leading to deterioration of the performance of the organic phase in all aspects, and in severe cases, it will affect the normal operation of production

Method used

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  • Method and Application of Reducing Nitrification Degradation of Hydroxime Extractant

Examples

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Embodiment 1

[0017] Example 1 proposes a method for reducing the nitrification degradation of the hydroxamate extractant, which includes the following steps: adding a hydroxamate protecting agent with a mass fraction of 5% in the organic phase of the hydroxame extractant. Wherein, the hydroxime extractant is 5-nonyl salicylaldoxime; the hydroxime protective agent is β-diketone.

Embodiment 2

[0019] Example 2 proposes a method for reducing the nitrification degradation of the hydroxamate extractant, which includes the following steps: adding a hydroxamate protecting agent with a mass fraction of 20% to the organic phase of the hydroxame extractant. Wherein, the hydroxime extractant is 2-hydroxy-5 nonyl-acetophenone oxime, and the hydroxime protecting agent is cyclopentanone.

Embodiment 3

[0021] Example 3 proposes a method for reducing the nitrification degradation of the hydroxamate extractant, which includes the following steps: adding a hydroxamate protecting agent with a mass fraction of 12% in the organic phase of the hydroxame extractant. Wherein, the hydroxime extractant is 5-nonylsalicylaldoxime, and the hydroxime protective agent is 2-decanone with a carbon content of C10. The hydroxime protective agent includes at least one of β-diketone, cyclopentanone, 2-methyl-4-methylnonanone, 2-decanone and 2-undecanone.

[0022] The method for reducing the nitrification degradation of the hydroxime extractant of the present invention can significantly reduce the nitrification degradation of the extractant without changing the extraction process, and the stability of the protection reagent is good without continuous addition, and the phase separation and extraction of the organic phase The performance impact is small and has good commercial prospects.

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Abstract

The invention relates to a method for reducing nitrification degradation of a hydroxime extractant and an application thereof. The method comprises the following steps: adding a hydroxime protective agent with a preset mass fraction into the organic phase of the hydroxamin extractant. The method for reducing the nitrification degradation of the hydroxime extractant of the present invention can significantly reduce the nitrification degradation of the extractant without changing the extraction process, and the stability of the protection reagent is good without continuous addition, and the phase separation and extraction of the organic phase The performance impact is small and has good commercial prospects.

Description

technical field [0001] The invention relates to a method for reducing nitrification degradation of a hydroxime extractant and an application thereof. Background technique [0002] The extraction and separation of valuable elements by solvent extraction is widely used in metal smelting, and from the perspective of environmental protection and economy, solvent extraction has become an important method for some metal smelting. At present, copper smelting using solvent extraction has become an important process in new copper smelting enterprises. The extractant currently used in copper solvent extraction is hydroxime extractant. Judging from the extraction characteristics of hydroxime extractant, it has high selectivity and hardly extracts other impurity elements, so the extraction process of copper becomes particularly simple, so that even though the price of hydroximin extractant is very expensive, it is still is widely used. [0003] In actual production, the composition o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/30
CPCC22B3/30Y02P10/20
Inventor 常宏涛张福顺彭军张芳
Owner INNER MONGOLIA UNIV OF SCI & TECH