首页>
外国专利>
SYSTEM FOR EXTRACTING VANADIUM FROM LEACHING SOLUTION CONTAINING VANADIUM CHROMIUM SILICON AND FOR PREPARING VANADIUM PENTOXIDE AND PROCESSING METHOD THEREFOR
SYSTEM FOR EXTRACTING VANADIUM FROM LEACHING SOLUTION CONTAINING VANADIUM CHROMIUM SILICON AND FOR PREPARING VANADIUM PENTOXIDE AND PROCESSING METHOD THEREFOR
展开▼
机译:从含钒铬硅的浸出液中提取钒,制备五氧化二钒的系统及其处理方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system for extracting vanadium from a leaching solution containing vanadium chromium silicon and for preparing vanadium pentoxide, and a method therefor, the system comprising, in sequence: an inpurity removal system, an extraction system, a reverse-extraction and vanadium precipitation system, a washing system and a calcining system. The method comprises the following steps: removing silicon in a leaching solution by using a silicon removal agent, extracting most of the vanadium to an organic phase by using centrifugal extraction, reverse-extracting the vanadium of a vanadium-rich organic phase by using a mixed solution containing a basic solution and an ammonium salt, and precipitating ammonium metavanadate to obtain an ammonium metavanadate solid, washing and drying, and then calcining at a certain temperature to obtain a low chromium, low silicon, low aluminum and high-purity vanadium pentoxide product.
展开▼