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1.发明授权Recovery of rare earth metals from waste material by leaching in non-oxidizing acid and by precipitating using sulphates 有权通过在非氧化性酸浸提从废料稀土金属的恢复，并通过用硫酸盐沉淀
公开(公告)号：EP2444507B1
公开(公告)日：2015-03-04
申请号：EP10188264.5
申请日：2010-10-20
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2.发明公开Recovery of tungsten from waste material by ammonium leaching 审中-公开Rückgewinnungvon Wolfram aus Abfallmaterial mittels Ammoniumauslaugung
公开(公告)号：EP2450312A1
公开(公告)日：2012-05-09
申请号：EP10189904.5
申请日：2010-11-03
CPC分类号： C01G41/02 , C01G41/00 , C01P2004/03 , C01P2004/38 , C01P2006/80 , C22B7/008 , C22B34/36 , Y02P10/234
摘要： A method of recycling tungsten within a waste material comprises roasting the waste material in an oxidizing atmosphere for converting the tungsten and/or tungsten carbide into tungsten oxide, directly after the roasting, leaching the roasted waste material for separating tungsten components from remaining components, wherein the tungsten components are leached in an alcaline ammonia solution so that the tungsten oxide is selectively dissolved, and separating remaining solid components of the leached roasted waste material from the dissolved tungsten oxide.
摘要翻译： 在废料中回收钨的方法包括在氧化气氛中焙烧废料，用于在焙烧之后直接将钨和/或碳化钨转化为氧化钨，浸出用于将钨组分与剩余组分分离的焙烧废料，其中 将钨成分浸出在碱性氨溶液中，使得氧化钨被选择性溶解，并从溶解的氧化钨中分离出浸出的焙烧废物的剩余固体成分。
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3.发明公开Recovery of rare earth metals from waste material by leaching in non-oxidizing acid and by precipitating using sulphates 有权通过在非氧化性酸浸提从废料稀土金属的恢复，并通过用硫酸盐沉淀
公开(公告)号：EP2444507A1
公开(公告)日：2012-04-25
申请号：EP10188264.5
申请日：2010-10-20
CPC分类号： C22B59/00 , C22B3/10 , C22B3/44 , C22B7/007 , H01M8/008 , H01M10/54 , Y02P10/234 , Y02W30/84 , Y02W30/86
摘要： A method of recycling rare earth metals included in a waste material, wherein the method comprises acidic leaching of the waste material using a non-oxidizing acid for solubilizing at least a part of metals included in the waste material while maintaining at least a part of non-metallic materials of the waste material in solid form, separating the remaining solid components of the leached waste material from a solution of the solubilized metals, and precipitating selectively at least a part of the rare earth metals in the solution while maintaining other metals in dissolved form, wherein the precipitating comprises adding sulphates to the solution of the solubilized metals and adding an alkaline solution to the solution of the solubilized metals for increasing the pH-value. As a non-onidizing acid, it is preferable to use hydrocloric acid in a concentration between 10% and 40%. As added sulphate, sodium sulphate is advantageously used as an aqueous solution.
摘要翻译： 回收的稀土金属的方法，包括在废料，worin该方法包括使用增溶的非氧化性的酸的至少金属的一部分包含在废料，同时保持至少非一部分废物的酸性浸提 固体形式的废料的-metallic材料，从溶解的金属的溶液中分离出浸出废物材料的剩余的固体组分，和沉淀选择性至少稀土金属的一部分在该溶液中，同时保持溶的其它金属 形状，worin沉淀包括将硫酸盐的溶解金属的溶液并加入到碱性溶液中，溶解的金属的溶液提高pH值。 作为非onidizing酸中，优选使用酸hydrocloric以浓度10％和40％之间。 作为添加硫酸，硫酸钠有利地用作在wässrige溶液。
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