《Ozone-nitric acid combined oxidation method for side chain of benzene ring containing electron withdrawing group》ZL200710161150.0 2021-05-08 16:56:03 浙江嘉化能源化工股份有限公司 Viewd 696 Previous《Industrial production method of alkylbenzenesulfonyl chloride》ZL200710044413.X Next《Chlorosulfonic acid preparation process and equipment》ZL200710045499.8