Operation process
Scope of Application:
Applicable to the oxide ore containing micro fine gold and silver, primary ore, high arsenic and high sulfur, metal smelting residue containing gold and silver.
 
 Applicable process:
It is applicable to the traditional heap leaching process, tank leaching process, carbon in pulp (agitation leaching process).
 
 Product form:
Comes in a grey white block, granule, powder mixture.
 
 PH Adjustment:
The product is used in alkaline medium, generally with calcium oxide (CaO) and sodium hydroxide (NaOH), etc., adjusting the pH value between 11.5~13 During the leaching process if the pH value decreases, a alkali supplement should be timely added.
 
 Production Usage:
According to the ore properties, grade, a test to determine the optimal dosage should be done, (generally 0.1~0.5kg per g (gold)/t (ore)). According to the ore grade, the higher grade, the average dosage is reduced. Total amount applied = Total ore amount(ton) * Grade * Apply amount per g(gold)/t(ore)
 
 Treatment Method:
According to the considered GDA total amount:
Heap leaching add 20% in the first time, the remaining dosage should be added according to the required days until the production is completed. Add an average amount every day (for example, if the dosage is 80%, you need 10 days to complete the gold leaching process, so every day a GDA of 8% should added). 
 
Tank leaching: add 40% in the first time, the remaining dosage should be added according to the required days to add average amount every day. 
 
Carbon leaching: add 40% in the first time, the remaining dosage should be added according to the required hours divided by 3 or 4, it needs 20-15% every time (if you need 24 hours to leach the gold, add 4 times, every 6 hours, according to the total amount, a 15% of the total amount of GDA should be added.)
 
 
 

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