Located in Yantai City, Shandong Province, YANTAI XINHAI MATERIALS TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in services including environmentally-friendly gold ore refining, design, R&D, production and sales.
Produced by YANTAI XINHAI MATERIALS TECHNOLOGY CO., LTD., CNFREE eco-friendly gold leaching reagent is a high-tech product for gold extraction, which can 100% replace sodium cyanide without changing the original leaching process and equipment, as well as meet the advantages of both sodium cyanide and eco-friendly leaching reagents.
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Adsorbs gold from cyaniding pulp by active carbon
Simultaneously leaching & adsorbing gold
A flexible & economic mineral processing method
Extracts gold from pregnant solution by zinc powder
Comparison with Sodium Cyanide
In order to investigate the difference of NaCN leaching reagent and CNFREE leaching reagent in the leaching effect on gold ore, we choose six kind of gold ore samples which are oxidized gold ore in Sultan Kush, oxidized gold ore in Tanzania , oxidized ore and mixed ore of gold mine in Tanzania , oxidized gold ore gravity separation tailings in Tanzania (T5) for leaching comparison test.
| Name of Ore Sample | Category of Ore Sample | Leaching Rate of AU （%） | Final dosage （kg/t) | Carbon Adsorption Rate（%） | Leaching Cost Comparison $/ton | ||||||||
| NaCN | CNFREE | CNFREE-NaCN | NaCN | CNFREE | CNFREE-NaCN | NaCN | CNFREE | CNFREE-NaCN | NaCN | CNFREE | CNFREE-NaCN | ||
| Gold Ore in Sultan Kush | Oxidized GoldOre | 91.45 | 91.44 | -0.01 | 3.6 | 4 | 0.4 | 98.24 | 98.21 | -0.03 | 10.45 | 9.29 | -1.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tanzania BM Gold Mine | Oxidized GoldOre | 94.17 | 94.13 | -0.04 | 1.2 | 1.2 | 0 | 96.90 | 96.79 | -0.14 | 3.48 | 2.79 | -0.69 |
| MMG Gold Mine | Oxidized GoldOre | 93.68 | 93.71 | 0.03 | 2 | 2.4 | 0.4 | 97.95 | 97.91 | -0.04 | 5.81 | 5.57 | -0.24 |
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