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A kind of detection method of rapid determination gold amount in cyanide solution

A technology of rapid determination and detection method, which is applied in the field of analysis and testing, can solve the problems that cannot satisfy the detection of cyanide liquid samples, etc., and achieve the effects of shortening the detection time, high accuracy and precision, and good applicability

Active Publication Date: 2018-09-28
FUJIAN ZIJIN MINING & METALLURGY TESTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0026] As can be seen from Table 1, among the analysis methods of gold in the cyanide solution studied in the literature, except for the MIBK-spectrophotometric method applicable to the determination of gold in the electroplating cyanide solution less than 2 mg / L, the single sample of the other methods The pretreatment time is more than or close to 1 hour, these methods are unable to meet the detection of a large number of cyanide liquid samples in a short time

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  • A kind of detection method of rapid determination gold amount in cyanide solution
  • A kind of detection method of rapid determination gold amount in cyanide solution
  • A kind of detection method of rapid determination gold amount in cyanide solution

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Embodiment 1

[0056] Embodiment 1: the amount of gold in the cyanide water sample of a certain cyanide beneficiation test adopts the detection result of the present invention and the detection result of foam plastic adsorption method to compare as follows:

[0057]

[0058] The comparison results show that, for the cyanide gold-containing solution, the determination results using this method are basically consistent with the detection results after separation and enrichment by the foam adsorption method. Therefore, the effect of fast and accurate detection can be achieved by adopting the present invention.

Embodiment 2

[0059] Embodiment 2: the amount of gold in a certain alkaline gold-containing wastewater adopts the detection result of the present invention and the detection result of foam plastic adsorption method to compare as follows:

[0060]

[0061] The comparison result shows that, for the cyanide gold-containing solution, the measurement result of the present invention is also basically consistent with the detection result after separation and enrichment by the foam adsorption method. Therefore, the effect of fast and accurate detection can be achieved by adopting the present invention.

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Abstract

The invention discloses a detection method for quickly determining the gold content in a cyanide solution. The detection method comprises the following steps: preparing same matrix blanks for each sample to be detected from tributyl phosphate; determining the absorbance of gold at a wavelength of 242.8nm through a flame atomic absorption spectrophotometer by means of air-acetylene flame; simultaneously calculating the gold contents of the samples and the same matrix blanks thereof through a standard curve method; and finally, directly calculating the gold content in a cyanide solution through a subtraction method. For a gold-containing cyanide solution, the determination result of the detection method for quickly determining the gold content in a cyanide solution is substantially consistent with the detection result obtained after separation and enrichment through a foam plastic adsorption method; and the detection method disclosed by the invention realizes quick pretreatment of gold determination samples in the cyanide leach solution, greatly shortens the detection time, and has the advantages of high accuracy and precision and good applicability.

Description

technical field [0001] The present invention relates to the test method of the amount of gold in the technical field of analysis and testing, in particular to a method for rapidly measuring the amount of gold in cyanide solution, in particular to the direct and rapid determination of gold in cyanide solution by preparing the sample to be tested and the same matrix blank-subtraction method Quantitative technical methods. Background technique [0002] Cyanide solution is the leaching solution produced in the cyanide gold extraction process. Due to the complex chemical composition in the cyanide solution, the determination of the amount of gold in the solution must be carried out after separation and enrichment. The separation and enrichment methods mainly include fire Assay gold separation method, co-precipitation method, solvent extraction method, ion exchange method, extraction resin method, liquid membrane separation method, adsorbent method, etc. [1]. There is no ideal an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33G01N21/78
CPCG01N21/33G01N21/78
Inventor 龙秀甲夏珍珠夏秀娟
Owner FUJIAN ZIJIN MINING & METALLURGY TESTING TECH