Research Report on the Properties of Gold Concentrate in Tonggou Gold Mine, Henan Province


The gold concentrate major minerals are: pyrite, pyrrhotite, yellow copper ore, quartz; secondary minerals well and lead ore, sphalerite; a small amount of mineral mica, calcite, carbonaceous, limonite .

Gold was not observed under the microscope, and it was mainly analyzed by ultramicroscopic gold. The phase analysis of gold accounted for 53.51%, and the gold contained in the sulfide accounted for 36.75%, in carbonates and silicates. The packaged gold accounted for 16.76%, making its conventional cyanidation recovery rate not high.

The ore contains 0.22% arsenic and 0.281% bismuth has a certain effect on cyanidation. The carbon content is 1.24%. It is recommended to do a carbon phase analysis later to find out the proportion of various carbons and whether there is any influence on cyanide. Organic carbon and graphitic carbon.

The gold concentrate contains 1.75% copper and about 13% pyrrhotite. Copper and pyrrhotite consume a large amount of cyanide and oxygen in the ore during the cyanidation process.

The cyanidation leaching rate was 85.61% by cyanidation.

Due to the time and funding relationship, the cyanidation test was carried out under the condition that the ore property was unclear. In addition, the cyanidation test was only carried out for simple cyanidation conditions. It is recommended that the detailed cyanide beneficiation test be carried out later. Will bring greater economic benefits to your unit.

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