Application method of ammonium sulfate prepared from smelting offgas

The invention relates to an application method of ammonium sulfate prepared from smelting offgas, belongs to the field of chemical industry and metallurgy and aims at providing an application method of ammonium sulfate prepared from smelting offgas. The method comprises the following steps: (a) prep...

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Bibliographische Detailangaben
Hauptverfasser:	WANG YING, LIU LILI, GAN XINDE, WAN LONGFEI, WANG CHAO, MU XIAOLING, PENG YICUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMONIA CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF CYANOGEN 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:	The invention relates to an application method of ammonium sulfate prepared from smelting offgas, belongs to the field of chemical industry and metallurgy and aims at providing an application method of ammonium sulfate prepared from smelting offgas. The method comprises the following steps: (a) preparation of a vanadium precipitator liquid dissolving the ammonium sulfate prepared from smelting offgas in a solvent with a temperature higher than or equal to 85 DEG C to obtain an ammonium sulfate solution with a mass percentage concentration of 40-50%; filtering and removing water insoluble matters; and adding an oxidizing agent to obtain a vanadium precipitator solution; and (b) vanadium precipitation: adjusting the pH value of vanadium liquid using sulfuric acid, and adding the vanadium precipitator solution for ammonium salt vanadium precipitation to obtain ammonium polyvanadate or ammonium metavanadate; and washing and purifying to obtain vanadium products such as vanadium oxide. The method provided by the i