Continuous preparation device of vanadium pentoxide

• Main Authors: WANG YAOMING, FANG QINXIANG, WEI XINLAI, JIANG CHENXIAO, XU TONGWEN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention discloses a continuous preparation device of vanadium pentoxide. The continuous preparation device comprises a bipolar membrane electrodialysis system and a vanadium separation system, the bipolar membrane electrodialysis system comprises a cathode plate, a first bipolar membrane, an anion exchange membrane, a second bipolar membrane and an anode plate which are arranged in sequence; the vanadium separation system is connected with the acid chamber in a fluid communication manner; the vanadium separation system comprises a heating device and a solid-liquid separation device, the heating device is used for heating the enriched reaction liquid introduced from the acid chamber, and the solid-liquid separation device is used for carrying out solid-liquid separation operation on a solid-liquid mixture generated after heating. The purity of the V2O5 crude product prepared by the method disclosed by the invention is up to 98%, and the industrial product grade requirement of V2O5 is met. Therefore, the