Aurum element analyzing and detecting method in smelting material

Abstract

The invention relates to a method for analyzing and detecting gold elements in smelting materials, which comprises the following steps: a sample is added into nitric acid or tartaric acid for heating pretreatment; the test solution is filtered by filter paper, and residue is fully transferred to the filter paper and is washed; the filter paper and the residue are put in a ceramic crucible and are put in a muffle furnace at a temperature of 750 DEG C for full incineration; fresh aqua fortis is added for dissolving and incinerating the residue at a low temperature; a combustion supporting ratio of 5:1, a slit of 0.2mm, a lamp current of 2mA and a negative high voltage of 300V are chosen, an atomic absorption spectrophotometer is used for determining the light absorption values of the gold elements, and results are calculated and analyzed. The method of the invention for analyzing the gold elements in the smelting materials has simplicity, convenience, easy implementation, short flow, small investment, high determination accuracy and good repeatability.

Description

technical field [0001] 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 [0002] 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 separation method, ion exchange Enrichment and separation methods, etc. 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 ...

AI Technical Summary

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

Images