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Method for analyzing copper in chloridized extract

A technology of chlorination leaching and analysis methods, which is applied in the direction of material analysis by observing the influence on chemical indicators, chemical analysis by titration, and analysis by making materials undergo chemical reactions. It can solve data deviation and analysis results. Instability and other issues

Inactive Publication Date: 2007-03-07
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production process, using the analysis data of the above method to analyze the material balance of the production process, data deviation often occurs, and the analysis results are extremely unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Take 1 ml of copper chloride leaching solution, add 2 ml of 6 mol / L hydrochloric acid and 3 ml of 30% hydrogen peroxide, cover with a watch glass, boil and steam until nearly dry (battery), add 10 ml of water after cooling slightly, and boil again Until there are no fine bubbles in the solution, add 30 ml of water after cooling, and analyze by sodium thiosulfate titration. The results of the analysis were reproducible.

Embodiment 2

[0011] Take 2 milliliters of copper chloride leaching solution, add 2 milliliters of 6 mol / liter hydrochloric acid, 4 milliliters of 30% hydrogen peroxide, cover with a watch glass, boil and steam until nearly dry (pasty), add 10 milliliters of water after cooling slightly, Boil again until no fine bubbles occur in the solution, add 30 ml of water after cooling, and analyze by sodium thiosulfate titration.

Embodiment 3

[0013] Take 5 milliliters of copper chloride leaching solution, add 2 milliliters of 6 mol / liter hydrochloric acid, 2 milliliters of 30% hydrogen peroxide, cover with a watch glass, boil and steam until nearly dry (pasty), add 10 milliliters of water after cooling slightly, Boil again until no fine bubbles occur in the solution, add 30 ml of water after cooling, and analyze by sodium thiosulfate titration.

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PUM

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Abstract

This invention relates to chloridization leachate copper analysis method of one analysis method especially to the copper analysis method, which is characterized by the following: adding alcaine and auricome into chloridization leachate and boiling it to drying extent; converting leachate Cu<+ into Cu<2+; then adding water to boil the remaining auricome and then using natrium hyposulfidum method to test copper content.

Description

technical field [0001] The invention relates to an analysis method for copper in chlorinated leaching solution, which relates to an analytical method, in particular to an analysis method for copper in chlorinated leaching solution. Background technique [0002] At present, the usual method for analyzing copper in chlorinated leaching solution is to add ammonium hydrogen fluoride to the chlorinated leaching solution, control the pH of the solution to be 3.5-4, add potassium iodide and Cu 2+ Function, using starch as indicator, titrate with sodium thiosulfate standard titration solution until the blue color of the solution disappears, which is the end point. This is the classic solution copper ion analysis method. However, in the production process, if the analysis data of the above method is used to analyze the material balance of the production process, data deviation often occurs, and the analysis results are extremely unstable. Contents of the invention [0003] The ob...

Claims

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Application Information

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IPC IPC(8): G01N31/16G01N21/79
Inventor 王军
Owner JINCHUAN GROUP LIMITED
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