Environmentally Friendly Gold Dressing Agent

Product name:Gold Extraction For Raw Materials

1. Application Scope
WANGPAI product is suitable for containing gold and silver oxide ore, primary ore, gold concentrate, sulfuric acid slag, copper lead and zinc slag, cyanide tailings, anode mud, electronic materials, gravity separation flotation tailings and other materials containing gold and silver leaching, heap leaching, pool leaching, carbon slurry production process of leaching. WANGPAI and sodium cyanide production process is exactly the same, can be mixed use.
2. Shape and Solution
(1) The product is powdery and grainy.
(2) With the mixing bucket, ore pile backwater, over carbon place connecting one more opening, carbon bucket etc. flowing water ways to dissolve are the the fastest.
3. Alkalinity Adjustment
With lime, sodium hydroxide (caustic soda) adjust PH value to 10.5 - 12, check often and adjust timely. PH value is too high, affecting carbon adsorption, too low will hydrolyze, increase dosage.

4. Calculation of Dosage
(1) According to the grade of gold and silver materials and the harmful elements of leaching, the best dosage was determined by small test, may refer to sodium cyanide dosage, the theoretical dosage of WANGPAI is 0.1 - 0.6 kg / gram-ton ore (i. e., per gram gold of per ton ore, the higher the grade, the less WANGPAI dosage), the initial production concentration of WANGPAI may be higher, the normal production concentration is 0.1 - 0.7‰ (1-7 per 10,000). Determine the optimum concentration according to actual production.
(2) When the concentration of WANGPAI is below the optimum value in normal production, calculate the supplement dosage according to the water quantity: supplement dosage = (optimum concentration − measured concentration) × production water quantity, If the optimum concentration is 0.6‰, the measured concentration is 0.09‰, the water quantity is 600 m3, and the supplement dosage = (0.6−0.09) × 600=306 kg.

5. Others
(1) WANGPAI is prohibited to store and transport with acid chemicals, food.
(2) Complex ores may be referred to conventional methods of pretreatment, the use of lead nitrate, hydrogen peroxide solution, ammonia, sodium peroxide (potassium) as oxidant and inhibitor, is good for leaching of gold and silver, but excessive dosage will increase the amount of WANGPAI, increase the cost of production.
(3) WANGPAI dissolves the gold and silver faster than the sodium cyanide, timely detect, timely adsorpt of dissolved gold and silver.
(4) WANGPAI refers to the temperature required for the production of sodium cyanide.
(5) After the dissolution of WANGPAI some water turns grey and remaining a small amount of undissolved substance does not affect the leaching.
(6) Apricot shell charcoal, coconut shell charcoal, zinc powder and zinc wire all can be used as auxiliary collectors, gold special coconut shell charcoal adsorpts gold more thoroughly.
1. Product won the ISO14001 environmental certification, lSO9001 quality certification
2. The product has been tested by third parties, with a total of 1‰(1 per thousand) of thiocyanate and cyanate. It is the root of environmental protection, belongs to environmental friendly inorganic salt.
3. It was identified as common chemicals by the authority of the state in Shanghai and Tianjin.
4. Completely replace sodium cyanide, which is the same as traditional process.
5. Long effect, leaching of gold and silver is stable, less interference of harmful elements
6. Quick leaching,less time , easy transport and purchase, simple operation and environment friendly.