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Gold Purification Processes

     

Comparison and Analysis of Gold Purification Processes

Comparison of Advantages and Disadvantages

1. Automation Level

All-wet Process: High automation level, with PLC control, equipment fault alarm function, and operation record parameters remotely transmitted to the central control room.

Pyrometallurgy + Hydrometallurgy Process: Low automation level. Some procedures such as smelting slag formation and slag skimming involve poor operating environments.

2. Environmental Protection Investment

All-wet Process: Generates small amounts of waste gas, wastewater, and waste liquid.

Pyrometallurgy + Hydrometallurgy Process: Generates large amounts of waste gas, wastewater, and waste liquid, resulting in high environmental protection investment.

3. Product Purity

All-wet Process: Can produce products with relatively high purity (the purity of gold can reach 99%-99.99%).

Pyrometallurgy + Hydrometallurgy Process: Low product purity (the purity can only reach around 84-90% after preliminary purification).

4. Energy Consumption

All-wet Process: Low energy consumption.

Pyrometallurgy + Hydrometallurgy Process: High energy consumption.

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