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1. 发明公开

EP2388238A1 Process for preparing vanadium pentoxide 审中-公开
标题翻译：韦尔法罕zur Herstellung eines钒 - Pentoxids
公开(公告)号：EP2388238A1
公开(公告)日：2011-11-23
申请号：EP11164001.7
申请日：2011-04-28
申请人： Greenshores Patent BV
发明人： Mambote, Cyril Roger Mpai
IPC分类号： C01G31/00 , C01G31/02 , C01G49/00 , C01G53/00 , C22B3/08 , C22B7/00 , C22B34/22 , C01G9/00 , C01F5/22
CPC分类号： C01G31/02 , C01G9/00 , C01G31/003 , C01G49/0009 , C01G53/00 , C22B3/42 , C22B7/007 , C22B7/04 , C22B34/22 , C22B34/225 , Y02P10/23 , Y02P10/234
摘要： The invention is directed to a process for preparing vanadium pentoxide from an ash composition comprising solid ash particles, vanadium, iron and nickel compounds optionally present in an aqueous solution. The process comprises the following steps:
(i) leaching the ash composition by contacting the ash composition with an acid aqueous solution at a pH of below 1,
(ii) adding a reducing agent to the aqueous solution,
(iii) contacting the aqueous solution obtained in step
(ii) with an ion exchange resin in its H + ionic form,
(iv) desorption of the vanadium compounds from the ion exchange resin rich in vanadium compounds by contacting the ion exchange resin with an aqueous solution of H 2 SO 4 to obtain an aqueous solution rich in vanadium compounds, and
(v) converting and isolating the vanadium compounds as present in the aqueous solution to vanadium pentoxide.
摘要翻译：本发明涉及一种由灰分组合物制备五氧化二钒的方法，其包含任选存在于水溶液中的固体灰分颗粒，钒，铁和镍化合物。该方法包括以下步骤：（i）通过使灰份组合物与酸水溶液接触，使其在pH低于1的条件下浸出灰分组合物，（ii）向该水溶液中加入还原剂，（iii）使该水溶液（ⅱ）中得到的离子交换树脂为H +离子形式，（iv）通过使离子交换树脂与H 2 SO 4水溶液接触，使钒化合物从富含钒化合物的离子交换树脂中解吸以获得富含钒化合物的水溶液，和（v）将存在于水溶液中的钒化合物转化并分离成五氧化二钒。

2. 发明公开

EP2412675A1 Process for isolating vanadium 审中-公开
标题翻译： Verfahren zum Isolieren von钒
公开(公告)号：EP2412675A1
公开(公告)日：2012-02-01
申请号：EP11170342.7
申请日：2011-06-17
申请人： Greenshores Patent BV
发明人： Mambote, Cyril Roger Mpai
IPC分类号： C01G31/02 , C01F7/08 , C22B34/22 , C01G31/00 , C01G49/02 , B01J21/20 , B01J23/92
CPC分类号： C01G31/02 , C01F7/08 , C01G31/00 , C01G49/02 , C22B3/08 , C22B3/44 , C22B5/10 , C22B7/007 , C22B7/02 , C22B26/10 , C22B47/00 , Y02P10/234
摘要： The invention relates to a process for isolating vanadium as a vanadium compound from a solid composition comprising oxides and/or hydroxides of aluminium, oxides of vanadium and oxides of iron. The process comprises the following steps:
(i) calcination of the solid composition,
(ii) oxidation by means of salt roasting of the solid composition with an alkali compound to obtain a roasted composition,
(iii) contacting the roasted composition with an aqueous solution wherein the pH of the aqueous solution when in contact with the roasted composition is between 7 and 10 to obtain an aqueous solution comprising soluble salts of vanadium oxides and a remaining solid composition,
(iv) separating the aqueous solution comprising soluble salts of vanadium oxides and the remaining solid composition,
(v) obtaining the vanadium compound or a precursor of the vanadium compound by precipitation of the vanadium oxides with a suitable cation and wherein the resulting precipitated solids are separated from the aqueous solution by means of filtration.
摘要翻译：本发明涉及从包含铝的氧化物和/或氢氧化物，钒的氧化物和铁的氧化物的固体组合物中分离作为钒化合物的钒的方法。该方法包括以下步骤：（i）固体组合物的煅烧，（ii）通过固体组合物用碱性化合物的盐焙烧进行氧化以获得焙烧的组合物，（iii）使焙烤组合物与水溶液接触其中当与所述焙烧组合物接触时，所述水溶液的pH为7至10，以获得包含可溶性氧化钒盐和剩余固体组合物的水溶液，（iv）将包含可溶性钒氧化物的水溶液和剩余的固体组合物，（v）通过用合适的阳离子沉淀钒氧化物来获得钒化合物或钒化合物的前体，并且通过过滤将所得沉淀的固体与水溶液分离。

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