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Analysis and detection method of gold element in smelting material

A detection method and gold element technology, applied in the direction of color/spectral characteristic measurement, etc., can solve problems such as difficult to master the analysis process, difficult to master the operation process, high labor intensity, etc., and achieve simple and easy measurement method, high accuracy and low investment small effect

Inactive Publication Date: 2013-08-28
JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because these enrichment and separation methods need expensive equipment, special materials, and a large amount of chemical reagents, the operation process is difficult to master, and the process is long and labor-intensive, such as the determination of gold by fire assay (national standard GB / T7739. 1-2007 Gold Concentrate Chemical Analysis Method) requires expensive instruments and equipment such as gold assay furnace, ash blowing furnace, microbalance and a large amount of melting reagents. The analysis process is not easy to master and requires certain practical experience. Therefore, these analysis methods are not general The analytical laboratory can establish

Method used

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  • Analysis and detection method of gold element in smelting material
  • Analysis and detection method of gold element in smelting material
  • Analysis and detection method of gold element in smelting material

Examples

Experimental program
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Embodiment

[0026] Embodiment: Analysis and detection of gold element in lead anode slime

[0027] draw standard curve

[0028] Get gold particles (Au ≥ 99.99%) and add aqua regia to dissolve, and prepare a standard solution containing gold 10 μg / ml, perform standard series measurements and draw a standard curve according to the method steps of the present invention. The specific operation process is: pipette 0.00ml, 1.00ml, 3.00ml, 5.00ml, 7.50ml, 10.00ml of gold standard solution (1ml=10μg) into a series of 50ml volumetric flasks, add 5ml of aqua regia, dilute with water, shake uniform. Use the atomic absorption spectrometer to measure the absorbance value of the standard series, draw the standard curve with the standard concentration as the abscissa and the absorbance value as the ordinate.

[0029] Sample Determination (Sample 30-4)

[0030] Weigh 10.00 grams of lead anode slime sample in a 400ml beaker, add 2 grams of tartaric acid, 200ml of nitric acid (4mol / L), and heat to disso...

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Abstract

The invention relates to an analysis and detection method of gold element in a smelting material. The method comprises the following steps: adding samples to nitric acid and tartaric acid to be pre-heated; filtering the filtrate by filter paper and transferring residues completely to the filter paper and washing; placing the filter paper and the residues to a porcelain crucible and placing in a muffle furnace to ash completely; adding fresh aqua regia to dissolve ash at low temperature; selecting the fuel / assistant ratio of 5:1, slit: 0.2mm, lamp current: 2mA and negative high voltage: 300V, measuring the light absorption value of gold element by an atomic absorption spectrometer, and calculating and analyzing the result. The analytic method to the gold element in the smelting material is simple and feasible, short in flow, low in investment, high in measuring accuracy and good in reproducibility.

Description

[0001] This application is a divisional application, the original application number is 200810240115.2, the original application date is December 18, 2008, and the original title of the invention is "Analysis and Detection Method for Gold Elements in Smelting Materials". technical field [0002] The present invention relates to the analysis and detection method of gold element, especially the analysis and detection method of gold element in smelting materials, which is applicable to the smelting of lead anode slime, lead-bismuth alloy, high-silver slag, crude lead, crude bismuth, crude silver, crude copper, etc. Analysis and detection of gold elements in materials. Background technique [0003] Among the existing analysis and detection methods of gold elements, the enrichment and separation of gold elements is an indispensable process, and there are various methods: fire assay gold method, activated carbon enrichment and separation method, foam plastic enrichment and separati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
Inventor 梁玉兰刘文花李熙王小玲彭玲
Owner JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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