environmental friendly gold extraction agent
| Agentia |
Sodium cyanide |
Environmental friendly gold extraction agent |
| PH |
11+1 |
11~12 |
| Dosage(g/T) |
350 |
300 |
| Temperature |
Normal temperature |
Normal temperature |
| Extraction time(h) |
24 |
24 |
| Leaching efficiency(%) |
93.65 |
94.31 |
| Follow-up treatment process |
Activated carbon,Ion-exchange resin |
Activated carbon,Ion-exchange resin |
Introduction:
environmental friendly gold extraction agent is an environmental protection gold extraction agent that can completely replace highly toxic sodium cyanide. The product has low toxicity and environmental protection. It is suitable for heap leaching, pool leaching and carbon slurry production processes of oxidized gold ore.
Advantages of products:
1, Low toxicity and environmental protection
As tested by the "Testing Center under Shanghai Research Institute of Chemical", The product is non-flammable, non-explosive, non-oxidant-dangerous, free of radiation danger, with low toxicity. It belongs to environmental and safe ordinary chemicals.
2,High leaching efficiency
Higher complexing power, capable of leaching gold and silver effectively at higher ore leaching rate.
3, Faster leaching speed
Shorter leaching cycle than cyanide (leaching time can be shortened by 15-30%), faster recovery.
4,Anti-interference capacity
Stable product performance, strong anti-interference capacity, free of adverse impact from a small amounts of arsenic, sulphur and other harmful substances in ore.
5,Easy to use
Soluble in water; consistent using methods with sodium cyanide for easy preparation and use.
6,Higher adaptability
Adaptable to various applications such as heap leaching, pond leaching and carbon slurry at various sizes.
7,Lower costs
Safe and environmental, effectively reducing higher expenses in sodium cyanide purchasing transportation, warehousing, storage, and environmental protection facilities.
Product Safety Report:
environmental friendly gold extraction agent is general cargo, and does not belong to flammable hazardous article, oxidants and organic peroxides oxide, or toxic and infectious substances, free of radiation, corrosive hazard, and other danger.
Its products are identified and certified by "Shanghai Classification and Test Center of Dangerous Chemicals" as authorized by State Production Safety Administration. The gold leaching agent is classified as general cargo, non-explosive, non-oxidant-dangerous, not belonging to flammable, radioactive or corrosive substances etc. Thus it can be transported safely via road, rail, sea, or air. It is shown from test results by "Henan Center for Disease Control and Prevention" that the product is of low toxicity, which toxicity is only equivalent of caustic soda. Its production waste water is tested as fully compliant with national emission standards by "Henan Test Center of Rock and Mineral" through tailings water quality analysis.
Product transportation and warehousing
1. The gold leaching agent is classified as general cargo, non-explosive, non-oxidant-dangerous, not belonging to flammable, radioactive or corrosive substances, etc., thus it can be transported safely via road, rail, sea, or air;
2. The product is easy to absorb moisture, and it should be moisture-proof, damp-proof, water-proof, sealed properly and placed in a cool and dry place.
3. The product should be isolated and should not be mixed with other chemicals or food items, thus to prevent human or livestock from intaking or eating.
4. According to the relevant national provisions, the user shall establish and improve the production and use safety system for the product.
Instructions for use
Application scope: adaptable to various applications such as heap leaching, pond leaching and carbon slurry
Main components: sodium oxide, iron, sulfur, ammonium, chloride, etc.
Product form: white powdery solid
Pharmaceutical dosage: 100-1500 g / ton.
Usage: heap leaching process: mix the product with water to formulate solution at a mass concentration of 0.03-0.1%;
Agitation leaching process: prepare solution at a mass concentration of 10% -15%, or added directly into a stirred tank in solid form; the agent concentration of leaching pulp ranges from 0.03-0.1% is generally .
Raw material proportioning and mixing of solar EVA adhesive film
The raw material of solar energy EVA adhesive film generally adopts EVA particles for photovoltaic from foreign original manufacturers such as DuPont, Mitsui and Bridgestone, which can be directly used for mixing without granulation. However, if EVA particles from domestic manufacturers, especially some small manufacturers, are used as raw materials, because their sources are often very complex, even including the leftover materials from photovoltaic module factories, this material needs to be reprocessed, crushed and granulated, and the corresponding process parameters and mixing proportion must be controlled. Even if this is done, the quality of the final finished EVA is still difficult to control. If it is continued to be used in the photovoltaic industry, especially in the manufacturing of large components, it will leave many hidden dangers.
In the process of mixing raw materials of EVA film, the proportion of some additives is very low (such as less than 0.1%), so how to make these low proportion additives mix evenly is a very important process problem. The method of multiple mixing can be adopted to mix the small proportion of additives with a small amount of other materials, then with more other materials, and finally with all other materials. After such mixing for many times, the problem of uniformity of low proportion additives can be solved.
In order to ensure the accuracy of proportioning and the uniformity of mixing, full-automatic vector weighing and mixing device can be selected. In order to prevent the overheating of EVA raw materials in mixing, low-temperature and low-speed mixer should be selected.
Rubber and plastic products - what are the main applications of TAIC?
As a multifunctional rubber additive, TAIC can be applied in the following three fields:
1. Plastic TAIC can improve the heat resistance, chemical stability and thermosetting properties of CPE, PE, PA, PBT, PVC and other plastic materials.
2. Rubber TAIC can provide a low compression set and improved thermal aging performance for a variety of synthetic rubbers (such as EPDM, HNBR, TPE, FKM, EVA).
3. The combination of photovoltaic TAIC and peroxide can improve the curing speed, improve production efficiency, save production costs, and enhance the efficiency / efficiency of solar modules by improving the transparency of EVA sealing materials.
Note: in order to obtain the necessary structural stability, EVA coating has to be crosslinked by peroxide during the lamination process. By using TAIC as a crosslinking additive in EVA coating, the crosslinking process is significantly improved, resulting in the following advantages / advantages:
A. Curing time reduction / cost savings
B. Increase of glue content / crosslinking degree
C. Increased transparency
D. Improved color stability by shorter curing time
Applications
Why Choose Us
Factory Scale
Changsha Zhongyi Chemical Co., Ltd. is a chemical additives company specializing in serving the fields of rubber, plastics and so on. The company is mainly engaged in TGIC curing agent; Gm3701, Si69, 171, 172, 550, 560, 570 and other silane coupling agents; BIPB, DCP, dhbp, tmch335 crosslinking agent; BPO, TbpB initiator and other peroxide series products; TAIC, TAC, TMPTMA vulcanization accelerators, antioxidants, TEP expanded microspheres, synergists, TBC flame retardants, SC sodium cyanate pharmaceutical intermediates, essence, polymer enhancers, foaming agents, plasticizers, fluorescent brighteners, solid degradation agents, UV irradiation crosslinkers and other products. Its products have passed IS09001 (2015) international quality system certification and ISO14001 (2015) international environmental management system certification. The products are mainly used in: CPE EPDM wires and cables, automotive rubber parts, EVA soles, floor mats and other sports materials, solar photovoltaic cell packaging films, thermoplastic plastics and resins, flame retardant textiles, flame retardant PP, flame retardant XPS, EPS, rubber conveyor belts, polymer material modification, pharmaceutical and pesticide intermediates, glass fibers, paint coatings, steel heat treatment, mining gold extraction and other fields.
The company will follow the policy of "professionalism, pragmatism, innovation, high quality and efficiency", seize opportunities, meet challenges and make new contributions to accelerating the development of China's chemical industry! Our aim is to serve our customers with professional standards, excellent product quality and considerate and perfect service.
The company pursues development through science and technology, survival through quality, and satisfaction through professional services. We are willing to work with colleagues in chemical industry and people of insight from all walks of life for common development and hand in hand; Always take "honesty and trustworthiness, quality assurance, customer first, high-quality service" as the goal, and realize "win-win interests, seek common development, and keep pace with the times" with merchants as its own responsibility, and make greater contributions to the country's economic take-off!
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