|
II. Technology and Equipment Transfer
1. The process engineering and equipment for hot pressing cyanide-free desorption～electrowinning of gold-loaded carbon.
Low production cost, the direct cost can be controlled at ≤550yuan/ton dry carbon
High resolution rate, with the grade of carbon tailing ≤0.1g/kg carbon.
Handling of Materials has been mechanized.
2. The process engineering and equipment for combined refining of highly pure gold by chlorination～extraction.
Low production cost, with the direct cost ≤0.1yuan/g.
The chlorination～extraction combined technique has been introduced, resulting in high production efficiency, fine product purity, stable quality and little stockpiling of gold.
Good appearance and quality of the gold bullion
Small area of land occupation and less equipment investment
3. The process engineering and equipment for regeneration of active carbon
by vertical-type constant-current heating.
Low production cost, with the direct cost ≤500 yuan/ton dry carbon.
Less carbon loss and high recovery rate of iodine value, with the recovery rate at ≥90%.
No noise and little soot while the equipment is running, which is environment friendly.
The material turnover has been mechanized.
|