New post-treatment process of working solution for producing hydrogen peroxide by anthraquinone method

• Main Authors: BAI LIGUANG, CHAI CHUNLING, SHEN CHONG, XU YINGRUI, MA JUN, ZHAO XIAODONG, PANG FEI
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a novel post-treatment process of a working solution for producing hydrogen peroxide by an anthraquinone method, which comprises a fibrous membrane alkali tower, an alkali settler, an alkali evaporator, a concentrated alkali liquor storage tank, a carclazyte bed and a working solution storage tank, and is characterized in that the working solution from an extraction procedure and the concentrated alkali liquor from the concentrated alkali storage tank jointly pass through the fibrous membrane alkali tower and fully react in the fibrous membrane alkali tower; the reacted working solution and dilute alkali liquor are discharged from the fiber membrane alkali tower and enter an alkali settler; the dilute alkali liquor flows to the alkali evaporator from the alkali settler, and forms concentrated alkali liquor again after water is removed in the alkali evaporator, and the concentrated alkali liquor flows to the concentrated alkali liquor storage tank and then enters the fiber membrane alk