Recovery and treatment of iridium plated titanium mesh: effective utilization of resources

With the rapid development of industry, the demand for metal materials is also constantly increasing. Among them, iridium plated titanium mesh is widely used in fields such as electrochemistry, electroplating, seawater desalination, and sewage treatment due to its excellent corrosion resistance, oxidation resistance, and high strength. However, as the service life approaches, iridium plated titanium mesh also needs to undergo reasonable recycling treatment to achieve resource recycling and environmental protection requirements. This article will introduce the importance of iridium plated titanium mesh recycling and related technical methods.

1、 The importance of recycling and processing iridium plated titanium mesh

Resource saving: Iridium plated titanium mesh is mainly composed of two metals: titanium and iridium, among which iridium is a rare metal with very limited resources. By recycling and processing, iridium can be reused, reducing the extraction of new resources, reducing energy consumption, and achieving the goal of resource conservation. Environmental requirements: Iridium plated titanium mesh will generate certain waste during use, and if not recycled, it may cause pollution to the environment. By recycling and treating the waste iridium plated titanium mesh, harmful substances can be harmless and their impact on the environment can be reduced. Economic benefits: The metal materials recovered and treated with iridium plated titanium mesh can re-enter the market, reduce production costs, and improve the economic benefits of the enterprise.

2、 Technical methods for recycling and treating iridium plated titanium mesh

Mechanical treatment: Firstly, the waste iridium plated titanium mesh needs to be disassembled and separated from other waste materials. Next, the iridium plated titanium mesh is cut into segments of a specified size through methods such as cutting and grinding, which facilitates subsequent processing. Chemical treatment: There is a strong bonding force between the iridium layer and the titanium substrate in the iridium plated titanium mesh, and chemical methods need to be used for separation. An effective method is to use acid leaching to immerse the iridium plated titanium mesh in an acidic solution and separate the iridium and titanium through a reaction. Due to the high stability of iridium in acidic environments, efficient recovery of iridium can be achieved. Smelting purification: The iridium solution generated during chemical treatment needs further purification. Generally, methods such as electrolysis or chemical precipitation are used to separate iridium from other impurities to obtain high-purity iridium products. In addition, the titanium substrate in the waste iridium plated titanium mesh can also be regenerated through methods such as pyrometallurgy and vacuum purification. Environmental protection treatment: The waste liquid, waste gas, etc. generated during the recycling process must be treated in accordance with environmental regulations. The harmful substances in the waste liquid can be harmless treated through methods such as precipitation and neutralization, while the waste gas needs to be purified through technologies such as adsorption and catalysis to ensure that the emissions meet the standards. Preparation of recycled iridium titanium mesh: The recovered iridium and titanium metal can be re prepared into iridium titanium mesh. Firstly, by using surface treatment techniques such as acid pickling and polishing on titanium substrates, the specified surface quality can be achieved. Then, a layer of iridium is deposited on the titanium substrate by electroplating or chemical plating to prepare a regenerated iridium titanium mesh. This not only reduces production costs but also achieves resource recycling.

The recycling and treatment of iridium plated titanium mesh is of great significance for resource conservation and environmental protection. By adopting modern technological methods, efficient recovery and treatment of waste iridium titanium plating mesh can be achieved, which is beneficial for reducing production costs, improving enterprise economic benefits, and achieving sustainable development goals.

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