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1.发明申请公开(公告)号：US20180363098A1
公开(公告)日：2018-12-20
申请号：US15736874
申请日：2016-06-16
发明人： Xiaowei Huang , Yang Xu , Jinyu Wang , Liangshi Wang , Zongyu Feng , Dali Cui , Zhiqi Long , Xu Sun , Na Zhao
CPC分类号： C22B7/007 , C01F7/04 , C01F7/0693 , C01F7/22 , C01F7/24 , C01F7/26 , C01F17/0006 , C01F17/0043 , C01F17/0068 , C01F17/0075 , C22B7/00 , C22B21/0023 , C22B59/00 , Y02P10/234
摘要： Disclosed is a method of recovering rare earth, aluminum and silicon from rare earth-containing aluminum-silicon scrap. The method comprises: S1, acid-leaching the rare earth-containing aluminum-silicon scrap with an inorganic acid aqueous solution to obtain a silicon-rich slag and acid leached solution containing rare earth and aluminum element; S2, adding an alkaline substance into the acid leached solution containing the rare earth and aluminum element and controlling a PH value of the acid leaching solution between 3.5 to 5.2, performing a solid-liquid separation to obtain a aluminum hydroxide-containing precipitate and a rare earth-containing solution filter; S3, reacting the aluminum hydroxide containing precipitate with sodium hydroxidee to obtain sodium metaaluminate solution and aluminum-silicon slag, and preparing a rare earth compound product with the rare earth-containing filtrate. The method dissolves an the aluminum and the rare earth with the acid and then via step wise alkaline conversion, convert aluminum icons to an aluminum hydroxide precipitate separated from rare earth ions, and then adds excessive amounts of sodium hydroxide to convert the aluminum hydroxide to a sodium metaaluminate solution, thereby realizing high-efficiency recovery of both rare earth and aluminum while significantly reducing the consumption of the sodium hydroxide and thus recovery cost.
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公开(公告)号：US09556500B2
公开(公告)日：2017-01-31
申请号：US14687909
申请日：2015-04-15
申请人： ORBITE ALUMINAE INC.
IPC分类号： C22B34/00 , C22B34/12 , C01B13/18 , C01F7/06 , C01F7/22 , C01F7/30 , C01G23/00 , C01G23/02 , C01G23/053 , C01G23/07 , C01G49/06 , C01G51/00 , C01G51/04 , C01G53/00 , C01G53/04 , C01D5/02 , C22B21/00 , C22B7/00
CPC分类号： C22B34/1245 , C01B13/18 , C01D5/02 , C01F7/066 , C01F7/22 , C01F7/306 , C01G23/001 , C01G23/022 , C01G23/0536 , C01G23/07 , C01G49/06 , C01G51/003 , C01G51/04 , C01G53/003 , C01G53/04 , C22B7/007 , C22B21/0023 , C22B34/1259 , Y02P20/129
摘要： There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO2, SiO2 etc.
摘要翻译： 提供了处理红泥的方法。 例如，该方法可以包括用HCl浸出红泥，以获得包含第一金属（例如铝）和固体的离子的渗滤液，并将所述固体与所述浸出液分离。 可以从渗滤液（Fe，Ni，Co，Mg，稀土元素，稀有金属等）中提取其他几种金属。 各种其他组分可以从固体如TiO2，SiO2等提取。
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3.发明授权Processes for preparing alumina and magnesium chloride by HCl leaching of various materials 有权通过各种材料的HCl浸出制备氧化铝和氯化镁的方法公开(公告)号：US09353425B2
公开(公告)日：2016-05-31
申请号：US14429017
申请日：2013-09-26
申请人： ORBITE ALUMINAE INC.
IPC分类号： C22B3/10 , C01F5/00 , C01F5/10 , C01F7/22 , C22B26/22 , C01B9/02 , C01B33/12 , C01B7/07 , C01G23/053 , C01G49/06 , C01G49/10 , C01G1/02 , C01G1/06 , C22B3/46 , C22B7/00 , C22B7/02 , C22B7/04 , C22B21/00
CPC分类号： C22B3/10 , C01B7/0706 , C01B9/02 , C01B33/126 , C01F5/00 , C01F5/10 , C01F7/22 , C01G1/02 , C01G1/06 , C01G23/0536 , C01G49/06 , C01G49/10 , C21B15/00 , C22B3/46 , C22B7/007 , C22B7/02 , C22B7/04 , C22B21/0015 , C22B21/0023 , C22B23/0423 , C22B23/0469 , C22B26/22 , Y02P20/129
摘要： The disclosed processes can be effective for treating various materials comprising several different metals. These materials can be leached with HCl for obtaining a leachate and a solid. Then, they can be separated from one another and a first metal can be isolated from the leachate. Then, a second metal can further be isolated from the leachate. The first and second metals can each be substantially selectively isolated from the leachate. This can be done by controlling the temperature of the leachate, adjusting pH, further reacting the leachate with HCl, etc. The metals that can be recovered in the form of metal chlorides can eventually be converted into the corresponding metal oxides, thereby allowing for recovering HCl. The various metals can be chosen from aluminum, iron, zinc, copper, gold, silver, molybdenum, cobalt, magnesium, lithium, manganese, nickel, palladium, platinum, thorium, phosphorus, uranium, titanium, rare earth element and rare metals.
摘要翻译： 所公开的方法对于处理包含几种不同金属的各种材料是有效的。 这些材料可以用HCl浸出以获得浸出液和固体。 然后，它们可以彼此分离，并且第一金属可以从渗滤液中分离出来。 然后，第二金属可以进一步与渗滤液隔离。 第一和第二金属可以各自基本上与渗滤液选择性隔离。 这可以通过控制渗滤液的温度，调节pH值，进一步使浸出液与HCl等进行反应来完成。可以以金属氯化物形式回收的金属最终可以转化为相应的金属氧化物，从而可以回收 HCl。 各种金属可以选自铝，铁，锌，铜，金，银，钼，钴，镁，锂，锰，镍，钯，铂，钍，磷，铀，钛，稀土元素和稀有金属。
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公开(公告)号：US20150159239A1
公开(公告)日：2015-06-11
申请号：US14413940
申请日：2013-07-12
申请人： ORBITE ALUMINAE INC.
IPC分类号： C22B21/00 , C22B34/12 , C01B33/193 , C22B26/22 , C22B59/00 , C22B3/44 , C22B3/10 , C01G49/06
CPC分类号： C22B21/0015 , C01B7/035 , C01B33/193 , C01F7/22 , C01F7/306 , C01F7/56 , C01G23/02 , C01G23/047 , C01G49/06 , C01G53/04 , C22B3/10 , C22B3/44 , C22B26/22 , C22B34/1245 , C22B34/1259 , C22B59/00
摘要： There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting titanium and various other metals from various materials, thereby allowing for preparing products such as titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom.
摘要翻译： 提供了从各种材料制备各种产品的方法。 例如，这些方法对从各种材料中提取钛和各种其它金属是有效的，从而允许制备诸如氯化钛和氧化钛的产物。 这些方法可以包括用HCl浸出原料以获得渗滤液和固体。 可以处理固体以便基本上选择性地从其中提取钛，同时处理渗滤液以便基本上选择性地从其中回收第一金属氯化物。
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公开(公告)号：US4548795A
公开(公告)日：1985-10-22
申请号：US608806
申请日：1984-05-10
IPC分类号： C01F7/22 , C01F7/30 , C01F7/46 , C01F7/56 , C04B35/101
摘要： A leaching process employing acidic chloride solutions, whereby the iron content of aluminous materials such as lower grade iron-containing bauxite ores is reduced, enabling the obtention of valuable products such as metallurgical grade alumina and refractory grade bauxite, previously obtainable only from higher grade low-iron aluminous materials.
摘要翻译： 使用酸性氯化物溶液的浸出方法，由此降低了含铝材料如低含量的含铝铝土矿的铁含量，从而能够获得先前仅从较高等级的低级别获得的有价值的产品如冶金级氧化铝和耐火级铝土矿 铁铝材料。
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公开(公告)号：US4239735A
公开(公告)日：1980-12-16
申请号：US72957
申请日：1979-09-06
IPC分类号： C01F7/22
CPC分类号： C01F7/22
摘要： A method for producing substantially pure alumina from kaolin clay by removing in a soluble form impurities which contaminate the alumina while the aluminum is maintained in an insoluble form. This is accomplished by leaching calcined kaolin clay with at least 36 weight percent hydrochloric acid to dissolve the impurities and convert the aluminum to insoluble aluminum chloride and maintaining the hydrochloric acid concentration in the leach liquor at at least 36 weight percent by the injection of hydrochloric acid gas. The insoluble aluminum chloride is then separated from the dissolved impurities and subjected to a second leaching step to solubilize and separate it from the silica gangue. Substantially pure AlCl.sub.3.sup.. 6H.sub.2 O crystals are recovered from solution and converted to alumina by conventional means. In an alternate embodiment, the process may be practiced on uncalcined clay and includes the addition of a source of fluoride ions, such as H.sub.2 SiF.sub.6, to the at least 36 weight percent hydrochloric acid leach liquor. An optional preleaching step utilizing 2N to 6N mineral acid is also disclosed.
摘要翻译： 一种从高岭土生产基本上纯的氧化铝的方法，通过以可溶形式除去在铝保持不溶形式时污染氧化铝的杂质。 这是通过用至少36重量％盐酸的煅烧高岭土浸出来溶解杂质并将铝转化成不溶性氯化铝并通过注入盐酸将浸出液中的盐酸浓度保持在至少36重量％来实现的 加油站。 然后将不溶性氯化铝与溶解的杂质分离，并进行第二浸出步骤以溶解并将其与二氧化硅g石分离。 从溶液中回收基本纯的AlCl3.6H2O晶体，并通过常规方法转化为氧化铝。 在一个替代实施方案中，该方法可以在未煅烧的粘土上实施，并且包括向至少36重量％的盐酸浸出液中加入氟离子源，例如H 2 SiF 6。 还公开了使用2N至6N无机酸的任选的预漂洗步骤。
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7.发明授权
公开(公告)号：US4237102A
公开(公告)日：1980-12-02
申请号：US35440
申请日：1979-05-08
申请人： Joseph Cohen , Alain Adjemian
发明人： Joseph Cohen , Alain Adjemian
CPC分类号： C01F7/306 , C01F7/22 , C01P2006/80
摘要： A cyclic process for obtaining very pure alumina by the hydrochloric acid attack of a silico-aluminous material, the said process comprising, in a first stage, the precipitation of at most 75% of the alumina present in the liquor originating from the attack in the form of hexahydrated aluminum chloride which is subsequently decomposed by heating, then, in a second stage, the treatment of the liquor leaving the first stage with HCl gas in order to precipitate dissolved Al.sub.2 O.sub.3 in the form of hexahydrated aluminum chloride which is recycled into the liquor leaving the attack, while the hydrochloric liquor leaving the second stage and impoverished in Al.sub.2 O.sub.3 but rich in impurities, is treated with a recycled sulphuric liquor in order to precipitate impurities as their corresponding sulphates.
摘要翻译： 用于通过硅铝酸盐材料的盐酸侵蚀获得非常纯的氧化铝的循环方法，所述方法包括在第一阶段中沉淀出至少75％的来自于在 六水氯化铝的形式，其随后通过加热分解，然后在第二阶段中，用HCl气体处理离开第一阶段的液体，以便将六水氯化铝的溶解的Al 2 O 3沉淀，将其再循环到液体中 留下攻击，而离开第二阶段并在Al2O3中贫瘠，但富含杂质的盐酸溶液用再循环的硫酸溶液处理，以便将杂质沉淀为相应的硫酸盐。
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公开(公告)号：US4224287A
公开(公告)日：1980-09-23
申请号：US32904
申请日：1979-04-24
CPC分类号： C01F7/306 , C01F7/22 , C22B3/0012 , C22B3/0068 , C01P2006/11 , C01P2006/12 , Y02P10/234
摘要： In the process for the preparation of pure aluminum oxide by the steps of hydrochloric acid decomposition of mechanically or thermally activated clay or alumina containing minerals, separating the insoluble residue, removing the iron from the solution, crystallizing the aluminum chloride in the iron-free solution, thermally decomposing the crystallizate to aluminum oxide and recovering the hydrochloric acid from the decomposition gases, the improvement comprising effecting the process by the steps of mechanically pretreating the clay, drying the pretreated clay, thermally or mechanically activating the clay, subjecting the activated clay to circulating leaching, separating the leached material into an SiO.sub.2 containing residue and an AlCl.sub.3 solution, extracting the AlCl.sub.3 solution to an evaporating crystallization and thermally decomposing the crystals to produce .alpha.-Al.sub.2 O.sub.3. All of the stages are interrelated one to the other for maximum recovery of byproducts, heat, acid and the like. The .alpha.-Al.sub.2 O.sub.3 is directly produced in a form of high purity suitable for most applications.
摘要翻译： 在通过盐酸分解机械或热活化的粘土或含氧化铝的矿物质的步骤制备纯氧化铝的过程中，分离不溶残余物，从溶液中除去铁，使无铁溶液中的氯化铝结晶 将结晶物热分解成氧化铝并从分解气中回收盐酸，其改进包括通过机械预处理粘土，干燥预处理的粘土，热或机械活化粘土，将活化的粘土 循环浸出，将浸出的材料分离成含SiO 2的残渣和AlCl 3溶液，将AlCl 3溶液萃取至蒸发结晶并热分解晶体以产生α-Al2O3。 所有的阶段都是相互关联的，用于副产物，热，酸等的最大回收。 直接以大多数应用的高纯度形式生产α-Al2O3。
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公开(公告)号：US4172879A
公开(公告)日：1979-10-30
申请号：US895085
申请日：1978-04-10
CPC分类号： C22B3/0095 , C01B7/191 , C01F7/20 , C01F7/22 , C01F7/50 , C01G49/0009 , C22B3/0093 , Y02P10/234
摘要： A process for the selective separation of ferric iron from an aluminum fluoride aqueous solution containing ferric iron is effected by contacting said solution with an organic extractant phase consisting essentially of a mixture of a mono (higher alkyl-substituted phenyl) phosphoric acid and a di(higher alkyl-substituted phenyl) phosphoric acid dissolved in an inert diluent to thereby transfer the ferric iron to said organic extractant phase. The efficiency of the process is further improved by adjusting the aluminum fluoride aqueous feed solution to a temperature in the range of about 140.degree. F. to about 175.degree. F. prior to contacting it with the organic extractant phase, maintaining the temperature within this range throughout the ferric iron extraction stage or stages, then heating the resulting iron-depleted aqueous raffinate to a temperature higher than 195.degree. F., and then crystallizing aluminum fluoride trihydrate out of the raffinate at this higher temperature.
摘要翻译： 通过使所述溶液与基本上由单（高级烷基取代的苯基）磷酸和二（高级烷基取代的苯基）磷酸酯的混合物组成的有机萃取剂相接触来实现从含有三价铁的氟化铝水溶液中选择性分离三价铁的方法 高级烷基取代的苯基）磷酸溶解在惰性稀释剂中，从而将三价铁转移到所述有机萃取剂相。 在将氟化铝水性进料溶液与有机萃取剂相接触之前将氟化铝水性进料溶液调节至约140°F至约175°F的温度，进一步提高了该方法的效率，将温度保持在该范围内 在整个三铁提取阶段或阶段，然后将得到的贫铁水提余液加热到高于195°F的温度，然后在更高的温度下从提余液中结晶出氟化铝三水合物。
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公开(公告)号：US4158042A
公开(公告)日：1979-06-12
申请号：US946345
申请日：1978-09-27
申请人： John E. Deutschman
发明人： John E. Deutschman
CPC分类号： C01F7/22
摘要： A process for the production of alumina from siliceous minerals containing substantial quantities of combined aluminium and calcium comprises the steps of treating the finely divided mineral with a hot acid liquor containing chloride, fluoride and calcium ions to extract alumina values from the mineral; recovering aluminium chloride from the liquid extract; recycling one fraction of the spent extract to the mineral extraction stage; and treating another fraction of the spent extract to regenerate hydrogen chloride gas for re-use in the process.
摘要翻译： 含有大量组合铝和钙的含硅矿物的氧化铝生产方法包括以下步骤：用含有氯化物，氟化物和钙离子的热酸液处理细碎矿物，从矿物中提取氧化铝值; 从液体提取物中回收氯化铝; 将一部分废弃的提取物回收到矿物提取阶段; 并处理另一部分的废提取物以再生氯化氢气体以便在该过程中重复使用。
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