Which downstream sectors offer the best growth potential for aluminum sulfate in China?

Which downstream sectors offer the best growth potential for aluminum sulfate in China?
Beyond traditional water treatment and papermaking, aluminum sulfate is finding higher-value applications. In leather processing, it serves as a pre-tanning agent that can cut chromium tanning agent use by 15-20%, improving leather uniformity and fullness while aligning with stricter environmental rules. In advanced ceramics, high-purity aluminum sulfate acts as a precursor for alumina ceramics and porous catalyst supports via sol-gel methods. Specialty paper grades, such as photographic and filter papers, require precise purity and reactivity for rosin sizing. Additionally, in urea-formaldehyde adhesives, aluminum sulfate functions as a cheap hardener and formaldehyde scavenger, replacing costlier ammonium chloride and saving several hundred yuan per tonne of adhesive.