Carbon paste method is a new technology for gold recovery from gold-bearing ore. The method uses a combination of carbon paste and sodium cyanide to extract gold from ore. The process is relatively simple and requires little expertise.
The process begins by grinding gold-bearing ore into a fine powder. The powder is then mixed with a solution of sodium cyanide and carbon paste. The solution is then allowed to sit for several hours. During this time, the gold in the ore is absorbed into the carbon paste, forming a solid gold-cyanide complex.
Once the complex has been formed, it is filtered out of the solution and the remaining ore is collected. The gold-cyanide complex is then further treated with acid to remove any remaining cyanide. This leaves the pure gold behind in the form of a solid or powder.
The carbon paste method is relatively safe and efficient, making it a popular choice for small-scale gold recovery operations. Compared to conventional gold recovery methods, this method is cheaper, faster, and more environmentally friendly.
The process also has the advantage of being able to handle a wide range of gold grades, from low-grade ore to high-grade ore. This makes the method suitable for small-scale mining operations, as well as large-scale mining operations.
The only major downside to the carbon paste method is that it requires larger amounts of sodium cyanide than other gold recovery methods. This can lead to environmental issues if not done properly. It is important that any gold-bearing ore that is processed with carbon paste is tested beforehand to determine the quantity of cyanide needed for optimal gold recovery.
Overall, the carbon paste method is a safe and reliable way to recover gold from gold-bearing ore. It is relatively low cost and is suitable for both small and large-scale gold recovery operations. The method also has the advantage of being able to handle a wide range of gold grades. However, the need for larger quantities of sodium cyanide can be a potential environmental hazard. By following the proper protocols and taking precautionary measures, the carbon paste method can be a safe and efficient method of gold recovery.
