Method for preparing sulfuric acid by incineration of refined benzene regeneration acid


Application Number: 00110673
Application Date: 2000.07.18
Publication Number: 1287968
Publication Date: 2001.03.21
Priority Information:
International: C01B17/50;C01B17/76
Applicant(s) Name: Benxi Iron & Steel (Group) Co., Ltd.
Address:
Inventor(s) Name: Cui Hongjiang;Liu Qingyou;Liu Wenli
Patent Agency Code: 21214
Patent Agent: dong hongbei
Abstract The present invention relates to the recovery and utilization of waste acid produced during the washing of refined benzene. During the high temperature cracking process regenerated acid, after being precipitated and filtered is burned and cracked together with pyrite in an incinerator, and after the unsaturated hydrocarbon polymer is removed, it is converted into SO2 which is used directly to produce sulfuric acid. This can utilize the regenerated acid effectively, save pyrite, increase the yield of sulfuric acid and realize closed loop circultation of refined benzene acid washing system and sulfuric acid manufacturing system.