Overview
Steps of using gold reagent:
1. Firstly, use lime or other alkali to adjust the alkalinity of the ore heap or slurry, and adjust the pH value to 11-12;
2. During heap leaching or pool leaching, prepare a certain concentration of gold leaching agent solution for spraying or soaking based on the optimal leaching concentration determined by the experiment;
3. When stirring and leaching, leach according to the optimal slurry concentration, gold leaching agent concentration, leaching time and other conditions determined by the experiment;
4. During the leaching process, the concentration of the leaching agent should be regularly measured. When the concentration decreases, the gold leaching agent should be added in a timely manner;
5. Due to the different composition and acidity of the ore, the optimal reagent concentration should be determined based on the actual amount of ore and the experimental results of the ore sample, and the gold leaching agent should be added proportionally.
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Working principle
Using sodium cyanide (NaCN) in the gold dressing agent to react with gold to form a water-soluble complex Na [Au (CN) 2].
Then, gold is removed from the solution as a metal through a displacement reaction using active metals such as zinc.
The reaction equation is:
4Au+8NaCN+2H2O+O2=4Na[Au（CN）2] + 4NaOH
2Na[Au（CN）2] +Zn=2Au+Na2[Zn（CN）4]
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Features & Benefits
1. Ordinary chemical industry, not classified as hazardous chemical industry
Testing and identification: The product is non flammable, non explosive, has no risk of oxidizing agents, no radiation hazard, and belongs to ordinary chemical products. It is environmentally friendly and safe.
2. High leaching efficiency
Strong chelating ability, capable of effectively leaching gold and silver from ores with high leaching rate.
3. Fast leaching speed
Shorter leaching cycle (can shorten leaching time by 15-30%) and faster recovery.
4. Strong anti-interference ability
The product has stable performance and strong anti-interference ability. The presence of small amounts of harmful substances such as arsenic As and sulfur S in the ore does not affect the leaching effect.
5. Easy to use
The product is easily soluble in water, making it easy to prepare and use.
6. Strong adaptability
Suitable for the production of oxidized gold ore through heap leaching, pool leaching, carbon slurry processes, etc., with varying scales.
7. Lower usage cost
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Specifications
Main ingredients: Sodium oxide, iron, sulfur, ammonium ions, chloride ions, etc
Product Form: White powdery solid (soluble)
Dosage: 100-1500 grams/ton of ore
Application : heap leaching, pool leaching, carbon slurry process, etc
Precautions for use
1. Non combustible, non explosive, non hazardous to oxidants, non radioactive, and non hazardous to transportation. It can be transported by road, railway, sea, or air.
2. The product is prone to moisture absorption and should be moisture-proof, moisture-proof, waterproof, and sealed. It should be stored in a cool and dry place and sealed.
3. The product should be stored separately and strictly prohibited from being mixed with other chemicals or edible items;
4. Prevent human and animal ingestion.
5. Establish and improve the safety production and use system of this product in accordance with relevant national regulations
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Inquiry
Please write down your requirement and contact details in the following form. You can also send a message to us by this email sales@staurk.com, we will reply to you within 24 hours.
Inquiry