SCR denitration dead catalyst valuable metal basicity extraction recovery unit

• Main Authors: HAN CHANGMIN, ZHAO HONG, ZOU JIAJIA, SHI FENG
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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

The utility model discloses a SCR denitration dead catalyst valuable metal basicity extraction recovery unit, its adopts naOH solution, leaches the extract with tungsten, the vanadium of SCR denitration dead catalyst, and during the titanium stays the leached mud, realizes the separation of tungsten, vanadium and titanium, then adopt tungsten and vanadium in the alkaline extraction process separation extract, processes such as process crystallization again, dehydration, stoving are refined, are accorded with the ammonium paratungstate and the ammonium metavanadate of national standard high -purity, obtain the rich titanium slag of by -product simultaneously. The utility model discloses can retrieve the valuable metal in the SCR denitration dead catalyst, can be accorded with the ammonium paratungstate and the ammonium metavanadate of national standard's high -purity, obtain the rich titanium slag of by -product simultaneously. 本实用新型公开了种SCR脱硝废催化剂有价金属碱性萃取回收装置，它采用NaOH溶液，将SCR脱硝废催化剂的钨、钒浸出到浸出液中，而钛留在浸出渣中，实现钨、钒与钛的分离；