关键词: 铝盐, 聚氯化铝, 硫酸铝, 行业现状, 发展趋势

Abstract: Introduced the main products（aluminum sulfate， PAC， and aluminum potassium sulfate），enterprise size, manufacturing technique level，equipments，and products′ applying status of aluminum industry in China. Aluminum products are mainly used in the fields of water treatment,paper,and food additives etc..With the rapid growth of paper and water treatment industries，the production scale of the aluminum industry in China expanded continuously，the technical level improved constantly，and industrial concentration degree was steadily going up.Furthermore，the product export volume was also growing year by year in addition to meet the Chinese domestic demands.Meanwhile, the existing problems，such as low-level redundant construction and disordered market competition of the industry were also put forward.It was also pointed out the industry′s development trends，such as the researches on continuous increasment of total product demand volume，new products and on new applications will attract more attentions.

Key words: aluminums, polyaluminum chloride, aluminum sulfate, industry status, development trendency