摘要
Chlor-alkali industry is a high energy-consuming,low value-added industry andmay bring negative impacts on theenvironment.Among all caustic soda pro-duction processes,the mercury cell methodfeatures highest energy consumption,se-verest pollution,and has been phased outlong ago in China.Among the diaphragmprocesses,those use graphite anode andordinary DSA(dimensionally stable anode)plates also have shortcomings like high en-