Recycling and sustainable development of lithium hydroxide

Today, as the new energy industry is booming, lithium hydroxide (LiOH), as an important basic material, is being widely used in many fields such as batteries, aluminum smelting, and medicine.

However, with the continuous increase in its usage, how to efficiently and environmentally treat waste lithium hydroxide and realize the recycling of resources has become an important issue we face. This article will explore the recycling path of lithium hydroxide and its significance for sustainable development.

The recycling of Industrial lithium hydroxide refers to the conversion of waste or inefficiently used lithium hydroxide into high-quality lithium hydroxide products through a series of technical treatments, thereby reducing dependence on primary resources, reducing production costs, and reducing pressure on the environment.

However, the recycling of lithium carbonatealso faces many challenges. First, the sources of waste lithium hydroxide are complex, the components are different, and it is difficult to handle. Secondly, if the wastewater, waste residue and other pollutants generated during the recycling process are not properly handled, they may cause secondary pollution to the environment.

Technical methods:

Chemical precipitation method: By adding specific chemical reagents, the impurities in the waste Lithium hydroxide monohydrate are precipitated and separated, thereby obtaining a relatively pure lithium hydroxide solution. This method is easy to operate, but attention should be paid to wastewater treatment.

Electrolysis: Using the principle of electrolysis, the lithium ions in the waste lithium hydroxide solution are reduced to metallic lithium, and then converted into lithium hydroxide through chemical reaction. This method can efficiently recover lithium resources, but the energy consumption is high.

Ion exchange method: Using the adsorption and exchange effect of ion exchange resin, the lithium ions in the waste lithium hydroxide solution are exchanged with other ions to obtain a high-purity lithium hydroxide solution. This method is complicated to operate, but it can achieve high-purity recovery.

The recycling of lithium hydroxide not only helps to solve the problem of resource shortage and reduce production costs, but also significantly reduces environmental pollution and promotes the green transformation of the industry. Specifically, its significance is mainly reflected in the following aspects: Saving resources: Through recycling, the mining and consumption of primary lithium resources can be reduced, thereby protecting limited natural resources. Reducing costs: Recycling can reduce the production cost of lithium hydroxide and improve the competitiveness of enterprises. Reducing pollution: Through scientific treatment methods, harmful substances in waste lithium hydroxide can be removed or converted into harmless substances to reduce environmental pollution. Promoting green transformation: The recycling of lithium hydroxide is one of the important directions of industrial green transformation, which helps to promote the sustainable development of the new energy industry.