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CN103025899A 萃取和回收钒的方法 无效 - 驳回 转让 复审申请

萃取和回收钒的方法
摘要：
一种从钒矿中萃取和回收钒的方法(10)，所述方法(10)的特征在于以下步骤：(i)将含有钒和铁的矿石进行酸浸(12)，将钒和铁萃进溶液；(ii)将浸出步骤(i)的产物(78)进行固液分离(80)；(iii)将分离步骤(ii)的液体产物(82)进行溶剂萃取(14)，其中将钒和铁从液体产物中萃取入有机萃取剂；(iv)将步骤(iii)中的有机萃取产物进行反萃取(16、18)，其中使用酸选择性地有序地从有机萃取剂中将钒和铁反萃取出来；(v)回收（104）步骤(iv)含有钒的反萃取溶液。
摘要（英）：

A method (10) for the extraction and recovery of vanadium from its ores, the method (10) characterised by the steps of: (i) Acid leaching (12) of an ore containing vanadium and iron to extract vanadium and iron into solution; (ii) Passing the product (78) of the leach step (i) to a solid/liquid separation step (80); (iii) Passing the liquid product (82) of separation step (ii) to a solvent extraction step (14) in which vanadium and iron are extracted into an organic extractant from that liquid product; (iv) Passing the loaded organic extractant produced in step (iii) to a stripping step (16, 18) in which acid is used to selectively and sequentially strip the vanadium and iron from the organic extractant; and (v) Passing the vanadium containing strip solution of step (iv) to a recovery step (104).

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