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1. 发明公开

EP1228000A1 PRODUCTION OF FUMED SILICA 审中-公开
标题翻译：热解法二氧化硅的生产
公开(公告)号：EP1228000A1
公开(公告)日：2002-08-07
申请号：EP00918288.2
申请日：2000-03-21
申请人： Goldendale Aluminum Company
发明人： BARNETT, Robert, J. , MEZNER, Michael, B.
IPC分类号： C01B33/12 , C01B33/08 , C01B7/19 , C01F7/02 , C01D5/00
CPC分类号： C01B7/191 , C01B7/193 , C01B33/18 , C01C1/244 , C01D5/00 , C01F7/141 , C01F7/26 , C01F7/50 , C01F7/56 , C01F11/24 , C01F11/46 , C03C1/002 , C04B7/24 , C04B18/0481 , C04B35/185 , C04B35/62204 , C22B21/0015 , C22B21/0046 , C22B21/0069 , Y02P10/234 , Y02P40/145 , Y02W30/91
摘要： A method for producing fumed silica and a fluorine-containing product from a source of silica in solid form and a solid material containing fluorine, the solid material selected from the group consisting of sodium aluminum tetrafluoride, cryolite, aluminum fluosilicate, ammonium bifluoride, sodium aluminum silicofluoride, and sodium flurosiliate. The method comprises the steps of digesting the silica in solid form and the solid material selected from the group consisting of sodium aluminum tetrafloride, cryolite, aluminum fluosilicate, ammonium bifluoride, sodium aluminum silicofluoride, and sodium flurosiliate in a sulfuric acid digester. The digesting step produces a first gas component comprised of silicon tetrafluoride, hydrogen fluoride and water vapor. The first gas component is removed from the digester. The gas component recovered from the digester is heated to a temperature sufficiently high to convert the silicon tetrafluoride to fumed silica in the presence of the hydrogen fluoride and the fumed silica is separated from the hydrogen fluoride.

2. 发明授权

EP0024131B1 A method of obtaining alumina from clay and other alumino-silicates and alumina obtained by this method 失效
标题翻译：从该方法获得的粘土和其他铝酸盐和铝的氧化铝的方法
公开(公告)号：EP0024131B1
公开(公告)日：1984-03-21
申请号：EP80302522.0
申请日：1980-07-24
申请人： Garcia Clavel, Maria Emilia , Martinez Lope, Maria Jesus , Casais Alavarez, Maria Teresa
发明人： Garcia Clavel, Maria Emilia , Martinez Lope, Maria Jesus , Casais Alavarez, Maria Teresa
IPC分类号： C01F7/30
CPC分类号： C01F7/26 , C01F7/20 , C01F7/34

3. 发明公开

EP3060690A1 DERIVING HIGH VALUE PRODUCTS FROM WASTE RED MUD 有权
标题翻译： ABLEITUNG HOCHWERTIGER PRODUKTE AUS ABFALL-ROTSCHLAMM
公开(公告)号：EP3060690A1
公开(公告)日：2016-08-31
申请号：EP14855405.8
申请日：2014-10-21
申请人： Peloton Resources Pty Ltd.
发明人： MORRIS, Richard , TODD, Matthew, Charles, Leighton , LENYSZYN, David, Adam , O'CONNOR, Terence, John
IPC分类号： C22B3/44 , C22B3/06 , C22B1/02 , C22B21/00 , C22B34/12 , C01F7/20 , C01G23/04 , C01G49/02 , C01B33/12 , C22B7/00 , B09B3/00
CPC分类号： C22B7/007 , B09B3/0016 , C01B33/12 , C01F7/066 , C01F7/141 , C01F7/26 , C01G23/047 , C01G23/053 , C01G49/02 , C22B1/02 , C22B3/44 , C22B21/0023 , C22B34/124 , Y02P10/234 , Y02P20/129
摘要： Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.
摘要翻译：本文公开的是从赤泥铝土矿残渣或类似物中回收有价金属和/或其氧化物的方法。该方法包括：煅烧pH小于约10的红泥残渣以提供煅烧的红泥残渣; 浸酸煅烧的红泥渣，提供富二氧化硅固体成分和酸浸出液; 分离富含二氧化硅的固体组分和酸性浸出液; 从酸性浸出液中沉淀出富含铁的固体组分; 并将沉淀的富含铁的固体组分与酸性浸出液分离以提供富含铝的液体。

4. 发明公开

EP0938452A4 VALUE IMPROVEMENT OF CLAYS 失效
标题翻译：增粘土的恢复
公开(公告)号：EP0938452A4
公开(公告)日：2000-01-12
申请号：EP97918842
申请日：1997-09-25
申请人： MCLAUGHLIN GEOSURVEYS PTY LIMI
发明人： MCLAUGHLIN ROBERT JAMES
IPC分类号： C01B33/187 , C01F7/20 , C01F7/26 , C01F7/76 , C01F7/46
CPC分类号： C01F7/765 , C01B33/187 , C01F7/20 , C01F7/26 , C01P2002/84 , C01P2006/80
摘要： PCT No. PCT/AU97/00636 Sec. 371 Date Dec. 31, 1998 Sec. 102(e) Date Dec. 31, 1998 PCT Filed Sep. 25, 1997 PCT Pub. No. WO98/14401 PCT Pub. Date Apr. 9, 1998A process which allows the conversion of clay minerals of the kalonite group, to a relatively pure form of alumina and silica respectively comprising the steps of (a) heating the kaolinite group minerals to greater than 500 DEG C., which causes dehydroxylation of the crystallographic lattice and formation of an intermediate meta-kaolin; (b) reacting the intermediate with only one of a selection of reagents including acids, alkalines or metalliferous compounds followed by heating of the mixture to form an aluminium salt in solution and residue of silica; (c) separation of the aluminium salt solution from the residue of silica by filtration and further treatment of the silica residue to produce a relatively pure form of fine particled silica; (d) formation of an alum by addition of ammonium sulphate in solution to the aluminium salt solution and further treatment of the alum to produce a relatively pure form of aluminium hydroxide.

5. 发明公开

EP3060690A4 DERIVING HIGH VALUE PRODUCTS FROM WASTE RED MUD 有权
标题翻译： ABLEITUNG HOCHWERTIGER PRODUKTE AUS ABFALL-ROTSCHLAMM
公开(公告)号：EP3060690A4
公开(公告)日：2017-06-07
申请号：EP14855405
申请日：2014-10-21
申请人： PELOTON RESOURCES PTY LTD
发明人： MORRIS RICHARD , TODD MATTHEW CHARLES LEIGHTON , LENYSZYN DAVID ADAM , O'CONNOR TERENCE JOHN
IPC分类号： C22B3/44 , B09B3/00 , C01B33/12 , C01F7/06 , C01F7/14 , C01F7/26 , C01G23/047 , C01G23/053 , C01G49/02 , C22B1/02 , C22B3/06 , C22B7/00 , C22B21/00 , C22B34/12
CPC分类号： C22B7/007 , B09B3/0016 , C01B33/12 , C01F7/066 , C01F7/141 , C01F7/26 , C01G23/047 , C01G23/053 , C01G49/02 , C22B1/02 , C22B3/44 , C22B21/0023 , C22B34/124 , Y02P10/234 , Y02P20/129
摘要： Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red mud residue; acid leaching the calcinated red mud residue to provide a silica rich solid component and an acid leachate; separating the silica rich solid component and the acid leachate; precipitating an iron rich solid component from the acid leachate; and separating the precipitated iron rich solid component from the acid leachate to provide an aluminium rich liquor.
摘要翻译：本文公开了一种从赤泥铝土矿残渣或类似物中回收有价值的金属和/或其氧化物的方法。该方法包括：煅烧具有小于约10的pH的赤泥残渣以提供煅烧的赤泥残渣; 酸浸出煅烧的赤泥残渣以提供富含二氧化硅的固体组分和酸浸出物; 分离富含二氧化硅的固体组分和酸浸出液; 从酸浸出液中沉淀出富含铁的固体组分; 并将沉淀的富铁固体组分与酸浸提液分离以提供富铝液体。

6. 发明公开

EP0938452A1 VALUE IMPROVEMENT OF CLAYS 失效
标题翻译：增粘土的恢复
公开(公告)号：EP0938452A1
公开(公告)日：1999-09-01
申请号：EP97918842.0
申请日：1997-09-25
申请人： Mclaughlin Geosurveys Pty. Limited
发明人： MCLAUGHLIN, Robert, James
IPC分类号： C01B33 , C01F7
CPC分类号： C01F7/765 , C01B33/187 , C01F7/20 , C01F7/26 , C01P2002/84 , C01P2006/80
摘要： A process which allows the conversion of clay minerals of the kalonite group, to a relatively pure form of alumina and silica respectively comprising the steps of: (a) heating the kaolinite group minerals to greater than 500 °C, which causes dehydroxylation of the crystallographic lattice and formation of an intermediate meta-kaolin; (b) reacting the intermediate with only one of a selection of reagents including acids, alkalines or metalliferous compounds followed by heating of the mixture to form an aluminium salt in solution and residue of silica; (c) separation of the aluminium salt solution from the residue of silica by filtration and further treatment of the silica residue to produce a relatively pure form of fine particled silica; (d) formation of an alum by addition of ammonium sulphate in solution to the aluminium salt solution and further treatment of the alum to produce a relatively pure form of aluminium hydroxide.

7. 发明授权

EP0005679B1 Procédé continu d'obtention d'alumine pure à partir d'une liqueur acide provenant de l'attaque chlorosulfurique d'un minerai alumineux et de purification de la liqueur débarrassée de l'alumine 失效
标题翻译：从酸性液体中获取酸性液体的酸性氧化铝的连续方法来自氧化铝的氯离子浸出和从氧化铝分离的液体的纯化
公开(公告)号：EP0005679B1
公开(公告)日：1982-09-08
申请号：EP79420023.8
申请日：1979-05-10
申请人： ALUMINIUM PECHINEY
发明人： Cohen, Joseph , Adjemian, Alain Résidence Sainte-Victoire , Ferran, Michel
IPC分类号： C01F7/26 , C01F7/20
CPC分类号： C01F7/20 , C01F7/26

8. 发明公开

EP0005679A1 Procédé continu d'obtention d'alumine pure à partir d'une liqueur acide provenant de l'attaque chlorosulfurique d'un minerai alumineux et de purification de la liqueur débarrassée de l'alumine 失效
标题翻译：对于衍生自酸性溶液铝矿物的含氯由硫酸浸提获得纯的氧化铝和用于清洁从溶液中分离的氧化铝的连续方法。
公开(公告)号：EP0005679A1
公开(公告)日：1979-11-28
申请号：EP79420023.8
申请日：1979-05-10
申请人： ALUMINIUM PECHINEY
发明人： Cohen, Joseph , Adjemian, Alain Résidence Sainte-Victoire , Ferran, Michel
IPC分类号： C01F7/26 , C01F7/20
CPC分类号： C01F7/20 , C01F7/26
摘要： Nouveau procédé continu d'obtention d'alumine pure comprenant en combinaison nouvelle, l'attaque chlorosulfurique (B) de minerais alumineux calcinés contenant des impuretés, suivie d'une concentration de la liqueur obtenue après attaque et séparation des stériles (S 2 ), le traitement sulfurique de la liqueur concentrée, puis sa chloruration (G) provoquant la précipitation de la quasi-totalité du chlorure d'aluminium hexahydraté, la séparation du précipité de chlorure d'aluminium hexahydraté (Se) et de la liqueur-mère chlorosulfurique (L6) chargée en impuretés, la pyrohydrolyse du précipité donnant l'alumine pure recherchée avec recyclage de l'acide chlorhydrique, le dégazage (K) de la liqueur chlorosulfurique d'impuretés avec recyclage de l'HCI gazeux en chloruration (G) et l'obtention d'une liqueur sulfurique d'impuretés (L 11), enfin l'élimination des impuretés présentes dans cette dernière liqueur sous forme d'une précipitation sulfurique par concentration (L) en présence d'ions potassium.

9. 发明公开

EP2244979A2 PROCESS FOR NEUTRALIZING BAUXITE DISSOLUTION RESIDUAL SUBSTANCE AND PROCESS FOR PRODUCING ALUMINUM HYDROXIDE 审中-公开
标题翻译：方法铝土矿溶解残留用于生产铝中和过程
公开(公告)号：EP2244979A2
公开(公告)日：2010-11-03
申请号：EP08864610.4
申请日：2008-12-22
申请人： Showa Denko K.K.
发明人： ISHIKAWA, Isao
IPC分类号： C01F7/06 , B09B3/00 , C02F11/14
CPC分类号： C22B21/0015 , C01F7/066 , C01F7/26 , C02F1/66
摘要： A process for neutralization is provided which can maintain a high solid content of a bauxite dissolution residual substance slurry even after a neutralization treatment is completed and the stabilize pH within a short time of the neutralization treatment. Such a process for neutralizing a bauxite dissolution residual substance containing a desiliconizing product which is generated in the production process of aluminum hydroxide using Bayer process, includes: mixing a bauxite dissolution residual substance or a bauxite dissolution residual substance slurry with sulfuric acid in an amount ranging from 0.6 to 1.2 equivalence to the total amount of sodium contained in the bauxite dissolution residual substance or a bauxite dissolution residual substance slurry, such that the solid content after mixing becomes 400 to 700 g/1 to gelate the mixture, and thereafter obtaining a bauxite dissolution residual substance neutralized slurry.
摘要翻译：一种用于中和过程提供一种能够维持铝土矿溶解残留物浆料的高固体含量的中和处理完成之后，即使和中和处理的一个很短的时间内的稳定pH值。混合铝土矿溶解残留物或用硫酸测距铝土矿溶解残留物浆料中的量：用于中和含一个脱硅产物的所有其在氢氧化铝的生产过程中使用拜耳法产生的，包括铝土矿溶解残留物这样的过程从0.6至1.2等价于钠包含在铝土矿溶解残留物或铝土矿溶解残留物的浆液的总量，检测没有混合后的固体成分变为400〜700克/升，以螯合的混合物中，并且此后获取铝土矿溶解残留物浆料中和。

10. 发明公开

EP1264799A1 Process for the purification of aqueous metal salt solutions 审中-公开
标题翻译： Verfahren zur Reinigung vonwässrigenMetallsalzlösungen
公开(公告)号：EP1264799A1
公开(公告)日：2002-12-11
申请号：EP02445071.0
申请日：2002-06-05
申请人： Feralco AB
发明人： Jäfverström, Stefan , Clarke, Neil
IPC分类号： C01F7/74 , C01B17/96 , C01F7/26 , C01F7/56 , B01J19/00
CPC分类号： C01F7/748 , B01J2219/00006 , C01B17/96 , C01F7/26 , C01F7/56
摘要： Method for purifying an aluminium salt from a first aqueous aluminium salt solution of a raw material containing impurities which comprise salts of at least one more noble metal than aluminium dissolved therein and a method of purifying a metal salt from inorganic impurities in an aqueous solution.
摘要翻译：从包含杂质的原料的第一含水铝盐溶液中提取铝盐的方法，所述杂质含有比其中溶解有铝的至少一种贵金属的盐，以及从水溶液中的无机杂质中提纯金属盐的方法。

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