Ministry of Industry and Information Technology and five other departments: Promote the efficient purification of valuable components in photovoltaic modules and improve the purity of silicon materials using wet methods, dry methods, and other processes.

The Ministry of Industry and Information Technology and five other departments have issued guiding opinions on promoting the comprehensive utilization of photovoltaic modules, promoting the efficient purification of valuable components of photovoltaic modules. Encouraging the extraction of silver materials from the metal grid lines of polycrystalline silicon solar cells, exploring the use of non-acidic or weak acidic solvents for silver immersion extraction, and improving the environmental protection level of the process. Accelerating research on the recycling technology of reagents in the silver extraction process using acid, and increasing the reuse rate of acid solution. Studying the fine purification process of silver-depleted modules. Encouraging the extraction of copper, lead, tin and other metal elements from ribbon and busbars, and the graded utilization of silicon elements in photovoltaic modules, improving the purity of silicon materials using wet and dry processes according to the requirements of companies producing polysilicon, aluminum-silicon alloys, and silicone. Researching low-cost extraction technologies for low-value components such as glass, film, and back panels, improving the overall comprehensive utilization level of photovoltaic modules. Supporting enterprises engaged in comprehensive utilization to adopt advanced production processes and reduce environmental impacts during the dismantling and utilization process.