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Metallic Ore Dressing Agent / Eco-Friendly Gold Leaching Agent for mining
Environmental protection gold extractant is introduced in detail
Environmental protection gold agent can replace sodium- cyanide environmental protection products, the detection proves that the product belongs to common goods, low toxicity environmental protection, products in the original "cyanide gold" process under the premise of perfect replacement of sodium- cyanide use. The product has the characteristics of low toxicity and environmental protection, strong anti-interference ability, stable performance, strong applicability, high leaching rate, faster recovery, consumption saving, low cost, easy to use, easy to transport and so on.
Product features
1. Low toxicity and environmental protection
The product does not burn, does not explode, does not have the oxidant danger, does not have the radiation danger, the low toxicity. It is a common chemical product, environmental protection and safety.
2. High leaching efficiency
Strong complexation ability, can effectively leach gold and silver from the ore, high leaching rate.
3. Strong anti-interference ability
The product has stable performance and strong anti-interference ability. A small amount of harmful substances such As ars-enic As and sulfur S in the ore will not affect the leaching effect.
4. Easy to use
The product is easily soluble in water, and the use method is the same as that of sodium- cyanide, so it is easy to prepare and use.
5. Strong adaptability
It is suitable for heap leaching, pool leaching, stirring leaching process and other production processes of oxidized gold mine.
6. Lower use cost
Due to the safety and environmental protection of the product, it can effectively reduce the high cost of purchasing, transportation, storage, storage, use, safety and environmental protection facilities caused by the use of sodium-- cyanide.
Product instructions
1. Applicable ore types
Gold and ore, primary ore, tailings, smelting slag, fine powder, flue ash, etc.;
2. Applicable process typ
Heap leaching, pool leaching, tank leaching, stirring leaching + activated carbon adsorption (resin exchange or zinc- powder, zinc wire replacement);
3. Product ingredients:
Alkali, chloride, ammonium, oxygen, sulfur, calcium, iron and other components;
4.Product form
Gray powder, soluble in water;
5. Product dosage:
200-1500 g/ton ore;
6. Product usage
The use of environmental protection gold agent and sodium- cyanide application process is the same, in the production of expensive liquid, poor liquid can be reused, expensive liquid gold adsorption with activated carbon (zinc- powder, zinc wire replacement or exchange resin). The leaching effect of gold is best when the ambient temperature is above 10ºC, and it can be added with sodium- cyanide at the same time.
(1) Heap leaching (pool leaching) process: 0.03-0.1% solution prepared with clean water for spraying (or pool leaching);
(2) Stirring leaching process: it can be configured to add 10%-15% solution, or directly added to the stirring tank in the form of solid, the concentration of reagent in the leaching pulp is generally in the range of 0.03-0.1%.
Product usage process
1. First of all, use lime or other alkali to adjust the alkalinity of ore heap or pulp, and adjust the pH value to 11-12;
2. Heap leaching or pool leaching, according to the best leaching concentration determined by the test, prepare a certain concentration of gold agent solution for spraying or soaking.
3. Stirring leaching, according to the test determined the best pulp concentration, gold concentration, leaching time and other conditions, leaching;
4. During the leaching process, the concentration of gold leaching agent should be measured regularly. When the concentration is reduced, the gold extraction agent should be added in time.
5. Because of the composition and ph of the ore is different, should be based on the actual amount of ore and the ore sample experiment obtained the best drug concentration, according to the proportion of the gold agent. The concentration of gold leaching agent can be detected according to the method provided by our company.
Method for determination of drug concentration
(1) Instruments and reagents required for testing
1. 1000 mL brown volumetric bottle, 1 100ml conical bottle, 1 100ml brown wide mouth bottle, 2 10ml pipettes, 1 red dropper;
2. The test agent (preparation method: 1.7000 grams of silver nitrate and distilled water constant volume to 1000 ml of brown volumetric bottle, put in the dark to save for use);
3. Color agent (preparation method: 0.02 ~ 0.05 grams of test silver ling [Taobao has sold] added to the mouth of 100 ml ace-tone bottle, stored in the dark for use).
(2) Detection methods
1. Extract 5ml of the liquid to be tested with a 10ml pipette and put it into a conical bottle;
2. Add 2 drops of chromogenic agent (about 0.1ml) into the conical bottle with the dropper, and the color of the liquid becomes light yellow;
3. Use 10ml pipette to extract the test agent and slowly drop it into the conical bottle (shake the conical bottle while titrating, observe the color change);
4. When the liquid color changes from light yellow to light orange red as the end point of titration, read the test agent consumed on the pipette scale.
5. The consumption of test agent ml is the detection of ten thousand fraction concentration (potion ratio concentration), such as consumption of 0.05 ml test agent, the concentration is zero point five thousand (0.005‰); If 0.3 ml is consumed, the concentration is 0.3 ‰ (i.e. 0.03‰); If 1.0 ml is consumed, the concentration is 1/10,000 (i.e. 0.1‰);
If 5.0 ml is consumed, the concentration is 5 parts per thousand (i.e. 0.5‰) and so on.
Tailings processing
After the leaching toxicity analysis and test of the tailing slag after using the product, the tailing slag meets the environmental protection requirements. Products are common chemical products, greatly reduce environmental pollution and poisoning harm.
Product transportation and storage
1. The product is non-combustible, non-explosive, non-oxidant, non-radioactive, no other transportation risk, can be carried out by road, railway, sea, air transport;
2. The product is easy to absorb moisture, should be moisture-proof, moisture-proof, waterproof, sealed, placed in a cool and dry place sealed packaging preservation;
3. Product isolation storage, is strictly prohibited with acid chemicals, food mixed storage;
4. Establish and improve the system of safe production and use of the product according to relevant national regulations;
5. Prevent people and animals from eating.
Precautions and safety protection measures
1. The reagents used should be stored in dark (brown) reagent bottles in a cool place and away from light during transportation, storage and use;
2.The product configuration process must wear gloves, masks and other protective equipment;
3. In case of discomfort caused by human and animal contact, please immediately use bleach powder to deal with it;
4. The temperature above 10ºC to use the best effect;
5. It is recommended to regularly test the grade, pH value and concentration of your liquid;
6. A small amount of black residue does not affect the leaching effect after the solution is dissolved;
7. Can be used with sodium- cyanide at the same time.
Product usage FAQ analysis
| 1. What process is suitable for my gold mine to extract gold? A: The ore is suitable for which beneficiation method is determined by the nature of the ore! Be sure to test and verify! General primary sulfide gold ore and polymetallic gold ore are mainly recovered by flotation process. Gold bearing quartz vein type gold ore, oxidation type gold ore and other relatively simple properties generally adopt leaching process gold extraction (heap leaching, pool leaching, carbon slurry, etc.). In the case of more gold, gravity separation equipment should be used for pre-recovery. |
| 2. What is the recovery rate of gold extraction in my gold mine? A: Accurate and reliable recovery rate should be determined by leaching test! According to the actual situation of the site, heap leaching, pool leaching and carbon slurry stirring leaching can be compared in the laboratory, and the appropriate process and recovery rate can be determined according to the effect. At the same time, the cost of the whole process and the dosage of the drug are also clear. |
| 3. How to deal with on-site reagent backwater and leaching tailings? A: The backwater in the process of on-site use contains residual agents and a small amount of residual gold. It is generally recycled after replenishing and dosing, and there is no waste. Leaching tailings with clean water or lime water for washing treatment, while using bleaching powder for treatment, can meet the environmental standards. |
| 4. How to deal with the problems encountered in the preliminary drug effect test and actual use process? A: when customers are worried about the effect of reagent use, they can mail ore samples to our hospital for test verification and laboratory analysis to find out the nature of ore and verify the recovery rate! We can also mail pharmaceutical samples to customers, by the mining enterprise to verify the effect of pharmaceutical! Our hospital can provide detailed technical guidance or on-site guidance before, during and after use. |
| 5. Technical consultation, test, testing, inspection and guidance, etc |
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