Title: Closed circulation process for continuously thickening dreg-flushing liquid in wet phosphoric acid filter
Application Number: 92108530 Application Date: 1992.08.10
Publication Number: 1081928 Publication Date: 1994.02.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B01D36/00,C01B25/22,C05B11/00
Applicant(s) Name: Shanghai Chemical Inst., Ministry of Chemical Indu Address: 200062
Inventor(s) Name: Wang Zongren
Attorney & Agent: GAO SHIQUN
Abstract:
     Dreg slushing water is first treated in continuous filtering concentrator to obtain thick slurry and sera. Then the thick slurry goes through steam or hot water to be used as technological washing water and the additional water added, it can be used as flushing water of filtering cloth. Said cyclic technology features simple process, high efficiency, saving energy and continuous production.
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