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 Is iron a significant factor in the cyanidation process?

January 10, 2024 in /by

In ore processing, iron is not harmful or influential. Co-occurrence of iron and gold is quite common, and the specific recovery rate depends on the different types of ore. There are cases where iron content is high in gold-bearing iron oxide ore, yet the recovery rate is very good.

what silver content does it become worthwhile to make a separate selection? What temperature is required during smelting?

January 10, 2024 in /by

For separate silver processing, a concentration of 50 grams per ton or higher warrants the use of zinc wire or zinc powder for replacement. During smelting, a temperature of at least 1300 degrees Celsius is required. Both gold-containing and silver-containing materials can be melted at this temperature. It’s important to note that this temperature refers […]

What sulfur content is considered high sulfur?

January 10, 2024 in /by

There is no strict standard for sulfur content that represents its impact on the leaching rate. Generally, 4%-5% or higher sulfur content is considered relatively high, indicating a preference for flotation. However, many high-sulfur minerals still exhibit good leaching rates, so there isn’t a strict distinction criterion; judgment is typically based on individual experimental results.

The particle size for pit leaching?

January 10, 2024 in /by

Normally around 100 mesh, and if the permeability is good, slightly larger particles can also be used. The particle size for the crusher is generally 70-80 mesh and can be adjusted by changing the grinding time (or increasing the water level) to adjust the particle size, it’s recommended to keep it within 100 mesh.

How often should the leaching solution be tested during cyanidation? Is it necessary to add activated carbon or change it based on time?

January 10, 2024 in /by

Testing the leaching solution once or twice a day is adequate. Monitoring the difference in gold content between rich and poor solutions indicates the adsorption by the activated carbon; a significant difference suggests effective adsorption. The leaching solution should be tested diligently, with tests conducted 1-2 times daily for pH, reagent concentration, and gold-silver content. […]