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Reagent and method for discriminating organic extractants by using same

A technology of organic extractant and reagent, applied in the field of hydrometallurgy, can solve the problem of low accuracy

Active Publication Date: 2011-07-20
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The four organic extractants P204, HR, N235 and TBP are all colorless and transparent liquids, which are difficult to distinguish by seeing or smelling.
Qualitative chemical analysis mainly distinguishes organic extractants by determining the content of C and P ions in organic matter, and the accuracy of this method is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Dissolve the solid copper sulfate into the cobalt sulfate solution, and then use an appropriate amount of H 2 SO 4 Or NaOH to adjust the pH value of the solution, the cation content in the solution: Co 2+ 27g / L, Cu 2+ 6.5g / L, Zn 2+ 0.079g / L, Cd 2+ 1.8g / L, Mn 2+ 0.1g / L, pH=3. Because solid copper sulfate contains impurities, it will bring a small amount of zinc, cadmium or manganese plasma, as long as the content of impurity ions is not too high, it will have no effect on the differentiation effect of the reagent.

[0047] Take a small amount of the 4 kinds of organic extractants and place them in the separatory funnel respectively, add the prepared reagents to the 4 kinds of organic extractants respectively, shake the separatory funnel, then let it stand for a while, and observe the color of the organic phase:

[0048] The color of the organic phase is dark blue, then the organic extractant is P204;

[0049] If the color of the organic phase is dark green, then t...

Embodiment 2

[0053] Dissolve the solid copper sulfate into the cobalt sulfate solution, and then use an appropriate amount of H 2 SO 4 Or NaOH to adjust the pH value of the solution, the cation content in the solution: Co 2+ 21.3g / L, Cu 2+ 4.2g / L, Zn 2+ 0.06g / L, Cd 2+ 1.1g / L, Mn 2+ 0.08g / L, pH=2.78.

[0054] Take a small amount of the 4 kinds of organic extractants and place them in the separatory funnel respectively, add the prepared reagents to the 4 kinds of organic extractants respectively, shake the separatory funnel, then let it stand for a while, and observe the color of the organic phase:

[0055] The color of the organic phase is dark blue, then the organic extractant is P204;

[0056] If the color of the organic phase is dark green, then the organic extractant is HR;

[0057] The color of the organic phase is milky white, then the organic extractant is N235;

[0058] If the color of the organic phase does not change to colorless, then the organic extractant is TBP.

Embodiment 3

[0060] Dissolve the solid copper sulfate into the cobalt sulfate solution, and then use an appropriate amount of H 2 SO 4 Or NaOH to adjust the pH value of the solution, the cation content in the solution: Co 2+ 33.4g / L, Cu 2+ 8.1g / L, Zn 2+ 0.08g / L, Cd 2+ 1.7g / L, Mn 2+ 0.08g / L, pH=2.21.

[0061] Take a small amount of the 4 kinds of organic extractants and place them in the separatory funnel respectively, add the prepared reagents to the 4 kinds of organic extractants respectively, shake the separatory funnel, then let it stand for a while, and observe the color of the organic phase:

[0062] The color of the organic phase is dark blue, then the organic extractant is P204;

[0063] If the color of the organic phase is dark green, then the organic extractant is HR;

[0064] The color of the organic phase is milky white, then the organic extractant is N235;

[0065] If the color of the organic phase does not change to colorless, then the organic extractant is TBP.

[00...

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Abstract

The invention provides a reagent, comprising the following components: Co<2+> 20g / L to 36g / L, Cu<2+> 4g / L to 9g / L, and anion SO4<2->, and the pH value of the reagent is less than and equal to 3. The method utilizing the reagent to discriminate organic extractants such as P204, HR, N235 and TBP comprises the following steps: adding the reagent into the organic extractants, and then evenly mixing; standing; observing the color of organic phases; and discriminating the organic extractants such as P204, HR, N235 and TBP according to colors after reaction. The reagent provided by the invention is utilized to discriminate the normally used organic extractants P204, HR, N235 and TBP in metallurgy, therefore, the method is simple, rapid and accurate.

Description

technical field [0001] The invention relates to the field of hydrometallurgy, in particular to a reagent and a method for using the reagent to distinguish organic extractants P204, HR, N235 and TBP in metallurgy. Background technique [0002] Hydrometallurgy is a metallurgical process that uses a certain solvent to extract and separate metals from raw materials by means of chemical action. In the metallurgical process, organic extractants are needed to extract metal ions. There are many kinds of organic extractants used to extract metal ions. The ones used for production are generally packed in 200-liter barrels. The outer packaging is relatively similar. Some organic extractants have similar appearances, and some of them are the same organic extractant. Due to different manufacturers and different production batch numbers, the color can be dark or light, and in the process of production and application, the phenomenon of trademark falling off is easy to occur in transportat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 李正根李维鉴
Owner ZHUZHOU SMELTER GRP