Separation of solid metal impurities from zinc sulphate solutions

Method for the continuous separation of the solid phase in the purification of zinc sulphate solutions. The solutions are filtered on chamber disc filters under an elevated pressure up to 4 atm. The precipitate is removed mechanically from the filtering elements by the action of a strong jet of zinc...

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Bibliographische Detailangaben
Hauptverfasser:	STAREV, LYUBEN RANGELOV, KIREV, KIRIL SPASSOV, YOVKOV, YOVKO NIKOLOV, ZASHEV, IVAN ZAHARIEV, IVANOV, GEORGI ILIEV, STOILOV, IVAN KOSTADINOV, MUTAFCHIEV, STOYCHO IVANOV, KORUDANOV, GEORGI NIKOLOV, GRIGOROV, IVAYLO YANEV, APOSTOLOV, KOSTADIN DIMITROV, SHIKOV, TODOR VASSILEV, RALCHEV, PENCHO IVANOV
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Method for the continuous separation of the solid phase in the purification of zinc sulphate solutions. The solutions are filtered on chamber disc filters under an elevated pressure up to 4 atm. The precipitate is removed mechanically from the filtering elements by the action of a strong jet of zinc sulphate solution at a temperature of 40 DEG -60 DEG C. The recovery of the filtrability of the filter cloth of the chamber disc filter is achieved by washing it with hot water.