Ruthenium Chloride Recycling

Ruthenium chloride (RuCl₃) is a compound consisting of ruthenium and chlorine, usually in the form of black or dark green crystals or powder. It is a common compound of ruthenium and is widely used in catalytic reactions, especially in processes such as organic synthesis and hydrogen production. Ruthenium chloride has good thermal stability at high temperatures and strong catalytic activity, so it is often used as a catalyst or catalyst precursor. It can also be used to produce ruthenium metal and as a raw material for ruthenium-based alloys and materials. Ruthenium chloride is also used in fuel cells, electrocatalysis, certain chemical analyses, and materials science research.

The common production process for ruthenium chloride is as follows:

1. Reaction of ruthenium metal with chlorine: The most direct way to produce ruthenium chloride is to react ruthenium metal with chlorine. Ruthenium metal usually reacts with chlorine gas at high temperatures (about 500-600°C) to form ruthenium chloride (RuCl₃). In this process, the concentration of chlorine and the reaction temperature must be controlled so that ruthenium can completely react with chlorine to produce black or dark green ruthenium chloride crystals. During this process, the amount of chlorine must be precisely controlled to avoid side reactions and the formation of other ruthenium chlorides due to excess chlorine. After the reaction is complete, ruthenium chloride is obtained by cooling, separating and purifying.

2. Synthesis from ruthenium chloride solution: Another common method is to dissolve ruthenium metal in concentrated hydrochloric acid or aqua regia. In this process, ruthenium metal reacts with concentrated hydrochloric acid or aqua regia to produce ruthenium chloride solution. Aqua regia (a mixture of concentrated hydrochloric acid and concentrated nitric acid) is a strong oxidizing agent that can effectively dissolve ruthenium metal and convert it to ruthenium chloride. After dissolution is complete, ruthenium chloride crystals can be obtained by evaporating the solution. This method is relatively simple and can be easily carried out in the laboratory. Finally, the ruthenium chloride product is obtained through the process of filtration and drying.

3. Ruthenium compound conversion method: The ruthenium compound conversion method is a method in which ruthenium oxide (such as ruthenium dioxide RuO₂) is reacted with hydrogen chloride (HCl) gas to obtain ruthenium chloride. This reaction is usually carried out at a relatively high temperature (about 400-500°C), where ruthenium dioxide reacts with hydrogen chloride to produce ruthenium chloride and water. The advantage of this reaction is that it can be started from existing ruthenium oxide and does not require pure ruthenium metal as a raw material, making it suitable for the recovery of ruthenium waste and ruthenium oxide. After the reaction is completed, ruthenium chloride is obtained through cooling and further purification processes. The advantage of this method is that it is highly efficient and can process waste containing ruthenium oxide.

Waste ruthenium chloride is one of the recycling sources of ruthenium-containing precious metal catalyst waste. Recycling of ruthenium-containing precious metal catalyst waste also includes ruthenium oxide recycling, ruthenium acetate recycling, ruthenium carbon recycling, ruthenium zinc catalyst recycling, ruthenium iodide recycling, ruthenium aluminum oxide catalyst recycling, etc. If you need to recycle ruthenium-containing scrap, please call our 24-hour service hotline. Dingfeng's precious metal recycling and refining manufacturers have their own recycling and refining plants without any middlemen that create price differences, and our first-class technical team and customer service personnel provide one-on-one service and ensure customer privacy during the recycling process.