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公开(公告)号：EP2139814B1
公开(公告)日：2018-09-12
申请号：EP08728434.5
申请日：2008-01-29
申请人： University of Leeds
IPC分类号： C01G23/047 , C22B1/02 , C22B34/12
CPC分类号： C01G23/047 , C01P2006/80 , C22B1/02 , C22B34/1209 , C22B34/1213 , C22B34/1245
摘要： This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium, sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.
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公开(公告)号：EP2244980B1
公开(公告)日：2011-09-28
申请号：EP08871063.7
申请日：2008-12-29
发明人： PRETORIUS, Gerard
CPC分类号： C01G23/028 , C01P2002/72 , C01P2006/80 , C22B34/1213 , C22B34/1245 , C22B34/1259 , C22B34/1272 , C22B34/129
摘要： A method for the production of titanium trifluoride from a titanium-containing material, includes the steps of producing a fluoride solution of Ti(IV) from the titanium-containing material and reducing the Ti(IV) in the solution with a transition metal or an alloy of the transition metal. The transition metal is selected from manganese, iron, cobalt, nickel and zinc. An ammonium containing salt and either ammonia or ammonium fluoride are added to the resulting solution containing Ti(III) to produce a precipitate, and the precipitate is pyrolysed to produce titanium trifluoride.
摘要翻译： 从含钛材料生产三氟化钛的方法包括以下步骤：由含钛材料生产Ti（IV）的氟化物溶液并用过渡金属或还原剂还原溶液中的Ti（IV） 过渡金属的合金。 过渡金属选自锰，铁，钴，镍和锌。 向含有Ti（III）的所得溶液中加入含铵盐和氨或氟化铵以产生沉淀，并将沉淀热解以产生三氟化钛。
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公开(公告)号：EP2329051A1
公开(公告)日：2011-06-08
申请号：EP09785659.5
申请日：2009-09-17
发明人： JHA, Animesh , COOKE, Graham , LAHIRI, Abhishek
IPC分类号： C22B34/12 , C01G23/047
CPC分类号： C22B34/1209 , C01G23/047 , C01P2002/85 , C01P2004/03 , C22B3/165 , C22B34/1213 , C22B34/124 , C22B34/1259 , Y02P10/234
摘要： The present invention relates to a process for recovering a titanium dioxide product from a titanium oxide-containing roasted mass comprising subjecting the titanium oxide-containing roasted mass or a substantially waterinsoluble residue thereof to leaching in an organic acid solution to produce an acid leachate and the titanium dioxide product.
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公开(公告)号：EP0612854B1
公开(公告)日：1998-12-30
申请号：EP94301194.0
申请日：1994-02-18
发明人： Hoecker, Walter
CPC分类号： C21B13/0086 , C22B34/1213 , Y02P10/136
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公开(公告)号：EP0755459A4
公开(公告)日：1997-02-26
申请号：EP95915693
申请日：1995-04-18
CPC分类号： C22B34/124 , C22B3/06 , C22B34/1209 , C22B34/1213 , Y02P10/234
摘要： An industrially realistic process for upgrading of titaniferous materials is disclosed. The process comprises the following steps: (i) a pretreatment which has the effect of rendering silica amenable to leaching under the particular conditions of a subsequent leach, and (ii) an aqueous leach in the presence of an acid, the conditions of which are chosen such that silica which enters solution is not hydrolysed or precipitated as a silicate. The pretreatment step (i) may comprise alkaline leaching, roasting or smelting. The leaching step (ii) may be conducted at low solids densities.
摘要翻译： 公开了一种工业上现实的用于提升含钛材料的方法。 该方法包括以下步骤：（i）预处理，其具有使二氧化硅易于在随后浸出的特定条件下浸出的效果，和（ii）在酸存在下的水浸出物，其条件是 选择使得进入溶液的二氧化硅不被水解或沉淀为硅酸盐。 预处理步骤（i）可以包括碱浸，焙烧或熔炼。 浸提步骤（ii）可以在低固体密度下进行。
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公开(公告)号：EP0755459A1
公开(公告)日：1997-01-29
申请号：EP95915693.0
申请日：1995-04-18
CPC分类号： C22B34/124 , C22B3/06 , C22B34/1209 , C22B34/1213 , Y02P10/234
摘要： An industrially realistic process for upgrading of titaniferous materials is disclosed. The process comprises the following steps: (i) a pretreatment which has the effect of rendering silica amenable to leaching under the particular conditions of a subsequent leach, and (ii) an aqueous leach in the presence of an acid, the conditions of which are chosen such that silica which enters solution is not hydrolysed or precipitated as a silicate. The pretreatment step (i) may comprise alkaline leaching, roasting or smelting. The leaching step (ii) may be conducted at low solids densities.
摘要翻译： 公开了一种工业上现实的用于提升含钛材料的方法。 该方法包括以下步骤：（i）预处理，其具有使二氧化硅易于在随后浸出的特定条件下浸出的效果，和（ii）在酸存在下的水浸出物，其条件是 选择使得进入溶液的二氧化硅不被水解或沉淀为硅酸盐。 预处理步骤（i）可以包括碱浸，焙烧或熔炼。 浸提步骤（ii）可以在低固体密度下进行。
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公开(公告)号：EP0658214A4
公开(公告)日：1996-07-03
申请号：EP93917451
申请日：1993-08-12
CPC分类号： C22B1/243 , C22B1/02 , C22B3/10 , C22B34/1204 , C22B34/1209 , C22B34/1213 , Y02P10/234
摘要： The application discloses a process for upgrading a titaniferous material by removal of impurities contained in the material especially radionuclides. The process involves heating the titaniferous material to a temperature of less than 1300 C to form a solid titaniferous phase and a liquid oxide or glassy phase in the presence of a material that promotes the formations of such phases, cooling the product at a rate that maintains the glassy phase in an amorphous state and leaching the solidified material with an acid or an alkali to remove the impurities. Materials that promote the formation of the desired phases include compounds of alkali metals and boron. Examples include borax, caustic soda, soda ash and silica.
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公开(公告)号：EP0585347A1
公开(公告)日：1994-03-09
申请号：EP92911984.0
申请日：1992-05-01
发明人： CHAO, Tze
CPC分类号： C22B34/1213
摘要： Procédé d'enrichissement d'un minerai contenant du titane, choisi à partir du groupe essentiellement composé de minerais titanifères, de leucoxène, de rutile, de perovskite et de sphène, le procédé consistant (a): à mettre ledit minerai en contact avec une solution aqueuse d'un acide inorganique en une concentration comprise entre environ 3 et 30 % en poids, ledit contact étant effectué à une température comprise entre environ 160 et 300 °C, jusqu'à ce que la quantité d'impuretés requise soit solubilisée et qu'une solution de lixivation soit formée; (b) et à extraire la solution de lixivation du produit de l'étape (a).
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公开(公告)号：EP2139814A4
公开(公告)日：2011-10-26
申请号：EP08728434
申请日：2008-01-29
IPC分类号： C01G23/047 , C22B1/02 , C22B34/12
CPC分类号： C01G23/047 , C01P2006/80 , C22B1/02 , C22B34/1209 , C22B34/1213 , C22B34/1245
摘要： This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium, sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.
摘要翻译： 本发明涉及一种有利于含钛矿石的方法。 该方法包括在氧气存在下煅烧含钛矿石，至少一种碱金属或碱土金属盐和至少一种含氧化铝的材料，以形成煅烧矿石混合物，然后将煅烧矿石混合物用包含铵， 氯化钠或氯化镁，以形成浸出的矿石混合物，并使浸出的矿石与酸接触以形成精矿。
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公开(公告)号：EP2177636A1
公开(公告)日：2010-04-21
申请号：EP10000646.9
申请日：2005-12-14
发明人： Pretorius, Gerard
CPC分类号： C22B34/1213 , C22B34/1245 , C22B34/1259 , C22B34/1263 , C22B34/129 , Y10T428/12181 , Y10T428/12681
摘要： A method of making titanium metal powder, the method including the step of
reducing TiF 3 with aluminium to produce a reduction product comprising titanium metal powder and AlF 3 .摘要翻译： 一种制备钛金属粉末的方法，该方法包括用铝还原TiF 3以制备包含钛金属粉末和AlF 3的还原产物的步骤。
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