Gold containing rhenium refers to the gold alloy containing rhenium element. Recovery of rhenium in gold can be done through the following steps:
1. Pretreatment: First, the gold sample containing rhenium is pretreated to remove impurities and unwanted metals, such as copper, nickel, etc.
2. Dissolve: Dissolve the pre-treated gold sample in an appropriate solvent, commonly used solvents include aqua regia (a mixture of concentrated nitric acid and hydrochloric acid) or cyanide.
3. Separation: rhenium is separated from gold by chemical reaction or physical method. The commonly used separation methods include oxidative decomposition, reduction separation or centrifugal precipitation.
4. Refining: The separated rhenium element is refined to make its purity meet the requirements. Methods of refining rhenium include extraction, distillation or electrolysis.
5. Reuse: After obtaining high-purity rhenium, it can be reused as a precious metal catalyst, alloy additives, electronic components and other fields.
It should be noted that the recovery of gold containing rhenium is a complex process that requires professional equipment and technology. It is recommended that this work be handled by a factory or company that specializes in precious metals recycling. At the same time, depending on local laws and regulations, it may be necessary to obtain relevant permits or certificates to recover gold containing rhenium. Therefore, before recycling gold containing rhenium, please consult professional precious metals recovery institutions or relevant departments.