公开(公告)号：US06039790A

公开(公告)日：2000-03-21

申请号：US11228

申请日：1998-02-05

申请人： Stig-Erik Hultholm ,  Sigmund Peder Fugleberg

发明人： Stig-Erik Hultholm ,  Sigmund Peder Fugleberg

IPC分类号： C22B3/04 ,  C21B15/00 ,  C22B20060101 ,  C22B3/08 ,  C22B3/20 ,  C22B3/44 ,  C22B7/04 ,  C22B23/00 ,  C22B23/02

CPC分类号： C22B23/0461 ,  C22B23/043

摘要： The invention relates to a method for recovering nickel in one and the same process from two pyrometallurgically produced nickel mattes, one of which contains a remarkable percentage or iron. The leaching of iron-bearing nickel matte is carried out in one step by conducting solution from the leaching cycle of a less iron containing matte into the leaching of a more iron containing matte at a stage where the iron of the less iron containing matte is in soluble form. The iron contained in the mattes is advantageously precipitated as jarosite and the solution created in the leaching of the more iron containing matte is conducted back into the leaching cycle of the less iron containing matte.

摘要翻译： PCT No.PCT / FI96 / 00432 Sec。 371日期：1998年2月5日 102（e）日期1998年2月5日PCT提交1996年8月6日PCT公布。 出版物WO97 / 07248 日期1997年2月27日本发明涉及一种从两个火法冶金制造的镍锍中同一工艺回收镍的方法，其中一种含有显着的百分数或铁。 含铁镍锍的浸出是通过在较少的含铁锍的浸出循环中将较少的含铁锍的铁浸入含铁锍的铁中，在较少的含铁锍的铁处于 可溶形式。 含有的哑光中的铁有利地作为黄钾铁矾沉淀，并且将在更多的含铁锍中的浸出中产生的溶液回流到较少的含铁锍的浸出循环中。

公开(公告)号：US5504053A

公开(公告)日：1996-04-02

申请号：US502187

申请日：1990-04-03

申请人： Pen-Yuan Chou ,  Madan M. Bhasin ,  Hwaili Soo ,  Erlind M. Thorsteinson

发明人： Pen-Yuan Chou ,  Madan M. Bhasin ,  Hwaili Soo ,  Erlind M. Thorsteinson

IPC分类号： B01J23/66 ,  B01J20060101 ,  B01J23/06 ,  B01J23/68 ,  B01J27/053 ,  C07D301/10 ,  C22B20060101 ,  B01J23/50

CPC分类号： B01J23/68 ,  C07D301/10 ,  Y02P20/52

摘要： Catalysts for the production of alkylene oxide by the epoxidation of alkene with oxygen comprise a silver impregnated support containing a sufficient amount of manganese component to enhance at least one of activity and/or efficiency and/or stability as compared to a similar catalyst which does not contain manganese component.

摘要翻译： 用于通过用氧环氧化烯烃生产环氧烷的催化剂包含含有足够量的锰组分的银浸渍载体，以增加活性和/或效率和/或稳定性中的至少一种，与不使用的类似催化剂相比，活性和/或效率和/或稳定性中的至少一种 含锰成分。

公开(公告)号：US4701215A

公开(公告)日：1987-10-20

申请号：US830642

申请日：1986-02-18

申请人： Kenneth W. Bates ,  William A. Griffiths

发明人： Kenneth W. Bates ,  William A. Griffiths

IPC分类号： C22B9/10 ,  B22D1/00 ,  C21B20060101 ,  C21C20060101 ,  C21C5/46 ,  C21C5/48 ,  C21C7/00 ,  C21C7/04 ,  C21C7/072 ,  C22B20060101 ,  F27B20060101 ,  F27D3/00 ,  F27D3/16 ,  F27D3/18 ,  G03C7/18 ,  G03C8/48

CPC分类号： C21C7/0037 ,  B22D1/005 ,  C21C7/072 ,  C22B9/103 ,  G03C7/18 ,  G03C8/48

摘要： For introducing gases, wires and powders to metal melts, a multi-ducted refractory body (11) is installed in the wall (14) of a vessel (15) for the melt. The body has passage closing elements (24, 34, 35) preventing melt entering the passages (A, B, C). Two passages (A and C) serve respectively for introducing gas, and fluidized powders, to the melt: each has a movable pipe (36.91) (for gas or fluidized powder). Upon moving gas pipe (36) towards the melt, it dislodges closing element (24) whereby gas from the pipe can enter the melt via capillary bores (25). Similarly, by moving pipe (91), closing element: when it reaches the closing element (34) the wire can itself dislodge this element to gain access to the melt. A method of introducing substances to liquid related to uses of this apparatus is disclosed, as well as metallurgical processes involving the method.

摘要翻译： 为了将气体，电线和粉末引入金属熔体，多管道耐火体（11）安装在用于熔体的容器（15）的壁（14）中。 主体具有防止熔体进入通道（A，B，C）的通道关闭元件（24,34,35）。 两个通道（A和C）分别用于将气体和流化粉末引入熔体中; 每个具有可动管（36,91）（用于气体或流化粉末）。 当气体管道（36）朝向熔体移动时，其移除闭合元件（24），由此来自管道的气体可以经由毛细管孔（25）进入熔体。 类似地，通过移动管（91），关闭元件（35）被移除，从而流化粉末可以从管道（91）排出。 电线沿着通道（B）送入熔体中，当其到达封闭元件（34）时，电线本身可以移动该电极以进入熔体。 公开了将物质引入与使用该装置有关的液体的方法，以及涉及该方法的冶金方法。

公开(公告)号：US4687514A

公开(公告)日：1987-08-18

申请号：US502726

申请日：1983-06-09

申请人： Hermann Renner ,  Karlheinz Kleiss ,  Rainer Schlodder

发明人： Hermann Renner ,  Karlheinz Kleiss ,  Rainer Schlodder

IPC分类号： C22B11/00 ,  C01G20060101 ,  C02F1/70 ,  C22B20060101 ,  C22B3/24 ,  C22B7/00 ,  C22B11/04

CPC分类号： C22B11/04

摘要： There is described a process for the recovery of noble metals from dilute aqueous or non-aqueous solution which contain salts of non-noble metals and/or difficulty volatile inorganic or organic compounds, which is generally usable, simple to carry out and supplies high yields of noble metals. There is added to the noble metal solution elemental tellurium or a reducible tellurium compound at a temperature of 100.degree. to 250.degree. C. and the precipitate formed worked up in known manner.

摘要翻译： 描述了从含有非贵金属盐和/或难挥发性无机或有机化合物的稀水溶液或非水溶液中回收贵金属的方法，其通常可用，易于进行并提供高收率 的贵金属。 在贵金属溶液元素碲或可还原碲化合物的温度为100〜250℃下加入，形成的沉淀以已知的方式处理。

公开(公告)号：US4615731A

公开(公告)日：1986-10-07

申请号：US578630

申请日：1985-02-09

申请人： John A. Thomas ,  Norman C. Nissen ,  Malcolm C. E. Bell ,  Alexander Illis

发明人： John A. Thomas ,  Norman C. Nissen ,  Malcolm C. E. Bell ,  Alexander Illis

IPC分类号： C22B3/00 ,  C01B19/00 ,  C01B19/02 ,  C01B19/04 ,  C22B20060101 ,  C22B3/44 ,  C22B7/00 ,  C22B7/04 ,  C22B11/00 ,  C22B11/06 ,  C22B11/04

CPC分类号： C22B11/04 ,  Y02P10/234

摘要： A hydrometallurgical process is provided for separating heavy metal nuisance elements such as As, Sb, Bi, Sn and Pb from precious metals and/or selenium. The process can be used as a step in an overall hydrometallurgical process for treating refinery residues such as anode slimes for the separation and recovery of valuable metal values.

摘要翻译： 提供了用于从贵金属和/或硒分离重金属有害元素如As，Sb，Bi，Sn和Pb的湿法冶金工艺。 该方法可用作整体湿法冶金工艺中用于处理炼油残余物（如阳极泥浆）以分离和回收有价金属值的步骤。

公开(公告)号：US4571264A

公开(公告)日：1986-02-18

申请号：US707923

申请日：1985-03-04

申请人： Donald R. Weir ,  Roman M. Genik-Sas-Berezowsky

发明人： Donald R. Weir ,  Roman M. Genik-Sas-Berezowsky

IPC分类号： C22B11/00 ,  C22B20060101 ,  C22B1/10 ,  C22B3/00 ,  C22B3/04 ,  C22B3/08 ,  C22B3/20 ,  C22B11/08 ,  C22B11/04

CPC分类号： C22B3/08 ,  C22B11/04 ,  Y02P10/234

摘要： A process for recovering gold from refractory auriferous iron-containing sulphidic ore which comprises feeding ground ore as an aqueous slurry to an acidic pretreatment step. The ground ore in the acidic pretreatment step is treated with aqueous sulphuric acid solution to decompose carbonate and acid consuming gangue compounds, and subjecting the treated slurry to a first liquid-solids separation step to produce a sulphate solution and separated solids. Water is added to the separated solids in a first repulping step to form a slurry having a pulp density in the range of from about 25 to about 60% by weight solids. The first repulped slurry is oxidized in a pressure oxidation step at a temperature in the range of from about 135.degree. to about 250.degree. C. under a pressurized oxidizing atmosphere while maintaining a free acid concentration of from about 5 to 40 g/L sulphuric acid to cause dissolution of iron, formation of sulphuric acid and oxidation of substantially all oxidizable sulphide compounds to sulphate form with less than about 20% of oxidized sulphur being present as elemental sulphur during the oxidation step. Water is added to the oxidized slurry in a seocnd repulping step to produce a repulped oxidized slurry with a pulp density in the range of from about 5 to 15% by weight, and subjecting the repulped oxidized slurry to a second liquid-solids separation step to produce an acid and iron containing solution and oxidized separated solids. The acid and iron containing solution is recycled to at least one of the first and second repulping steps.

摘要翻译： 一种从难熔含铁含铁硫化矿石中回收金的方法，包括将研磨矿石作为含水浆料进料至酸性预处理步骤。 酸性预处理步骤中的研磨矿石用硫酸水溶液处理以分解碳酸盐和酸消耗的脉石化合物，并将经处理的浆料进行第一液固固体分离步骤以产生硫酸盐溶液并分离固体。 在第一再制浆步骤中将水加入到分离的固体中，以形成浆料，浆料的固体重量为约25至约60重量％。 在压力氧化步骤中，在加压氧化气氛下，在约135℃至约250℃的温度范围内，将第一个再浆化浆料氧化，同时保持约5至40g / L硫酸的游离酸浓度 导致铁的溶解，硫酸的形成和基本上所有可氧化的硫化物化合物氧化成硫酸盐形式，在氧化步骤期间以小于约20％的氧化的硫作为元素硫存在。 在再造浆步骤中将水加入到氧化浆料中，以产生纸浆密度在约5至15重量％范围内的再浆化的氧化浆料，并将再淤化的氧化浆料进行第二液 - 固分离步骤 产生含酸和铁的溶液和氧化的分离固体。 将含酸和铁的溶液再循环至第一和第二再制浆步骤中的至少一个。

公开(公告)号：US4521627A

公开(公告)日：1985-06-04

申请号：US577514

申请日：1984-02-06

申请人： Peter W. D. Mitchell

发明人： Peter W. D. Mitchell

IPC分类号： C07B61/00 ,  B01J20060101 ,  B01J23/00 ,  B01J23/56 ,  B01J23/74 ,  B01J27/00 ,  B01J27/122 ,  B01J27/128 ,  B01J27/138 ,  B01J31/04 ,  B01J31/20 ,  B01J31/22 ,  C07C20060101 ,  C07C67/00 ,  C07C209/00 ,  C07C209/66 ,  C07C211/09 ,  C07F1/00 ,  C22B20060101 ,  C07C87/14

CPC分类号： C07C209/68

摘要： The disclosure is of a method of preparing alkaline metal salts of organic diamines. The method comprises, in brief, reacting the alkaline metal with a molar excess of the diamine in the presence of a catalytic proportion of a transition metal compound, at a temperature of from about 20.degree. C. to reflux temperature for the reaction mixture.

摘要翻译： 本公开是制备有机二胺的碱金属盐的方法。 该方法简单地包括在催化剂比例的过渡金属化合物的存在下，在约20℃至反应混合物的回流温度下使碱金属与摩尔过量的二胺反应。

公开(公告)号：US4394357A

公开(公告)日：1983-07-19

申请号：US321575

申请日：1981-11-16

申请人： Diana M. Mounsey ,  David B. Mobbs

发明人： Diana M. Mounsey ,  David B. Mobbs

IPC分类号： B01D20060101 ,  C01G20060101 ,  C01G51/00 ,  C01G51/04 ,  C01G53/00 ,  C01G53/10 ,  C07F15/04 ,  C22B20060101 ,  C22C19/00 ,  C25C1/20

CPC分类号： C22B23/0484

摘要： The invention relates to the preferential precipitation of cobalt from aqueous acidic sulphate solutions of nickel and cobalt.The separation is carried out by introducing at least a stoichiometric amount of Caro's Acid containing no more than a small amount of hydrogen peroxide into the nickel/cobalt solution progressively over a period of at least an hour, while maintaining the solution of a pH from 3.1 or 3.5 up to 4.7 by addition of an alkali metal hydroxide carbonate or bicarbonate, or at 4.3 to 4.7 with the corresponding ammonium compound, and, thereafter separating the precipitate from the aqueous cobalt depleted solution.In preferred features, the Caro's Acid solution used contains hydrogen peroxide in a mole ratio to peroxomonosulphuric acid of not more than 1:10; the Caro's Acid solution is introduced continuously or in increments of less than 1% of the total over a period of at least an hour; the Caro's Acid is produced by reaction between 93-98% sulphuric acid and 65-72% aqueous hydrogen peroxide in a mole ratio of 2.7:1 to 3.5:1; the Caro's Acid solution is diluted before use; and particular amounts of Caro's Acid are used depending upon the nature of the nickel/cobalt solution, the mode of treatment, and the nature of the neutralizing agent. Further separation can be effected by subsequent water and particularly not acid washing of the precipitate.

摘要翻译： 本发明涉及钴从镍和钴的酸性硫酸盐水溶液中优先沉淀。 通过在至少1小时的时间内将至少含有不超过少量过氧化氢的化学计量量的Caro酸向镍/钴溶液中逐渐引入，同时保持pH为3.1的溶液来进行分离 或通过加入碱金属氢氧化物碳酸盐或碳酸氢盐，或在4.3至4.7℃下加入相应的铵化合物，然后从含钴贫化溶液中分离出沉淀物，3.5至4.7。 在优选的特征中，所用Caro's酸溶液含有与过氧二硫酸的摩尔比不大于1:10的过氧化氢; Caro酸溶液在至少一小时内持续或以小于总量的1％的增量引入; 卡罗酸是通过93-98％硫酸和65-72％过氧化氢水溶液之间的摩尔比为2.7:1至3.5:1的反应产生的; 使用前将Caro's Acid溶液稀释; 并且根据镍/钴溶液的性质，处理方式和中和剂的性质，使用特定量的Caro酸。 进一步的分离可以通过随后的水进行，特别是不是酸洗该沉淀物。

公开(公告)号：US4386956A

公开(公告)日：1983-06-07

申请号：US212408

申请日：1980-12-03

申请人： David J. Roth ,  Lawrence R. Culler ,  Ralph D. Heifner

发明人： David J. Roth ,  Lawrence R. Culler ,  Ralph D. Heifner

IPC分类号： C22B7/00 ,  C22B20060101 ,  C22B7/04 ,  C22B15/00 ,  C22B21/00

CPC分类号： C22B7/04 ,  C22B21/0069 ,  C22B21/0092 ,  Y02P10/218

摘要： An improved method for recovery of metal, particularly aluminum, from metal bearing dross utilizes a trough for collection of the dross. A wedge member compresses the dross in the trough. In this manner, metal is decanted from the compressed dross and flows through slots in the bottom or passages in the walls of the trough for collection in a pan, or becomes concentrated at the edges or walls of the volume of dross. The trough and wedge members also serve to cool the dross material thereby diminishing metal loss due to thermite reaction. The compressed dross coalesces and solidifies, is broken and is mechanically separated. The larger dross components from the separation process are substantially metallic and may be recycled through the furnace. The remaining components are charged in a vortex melting furnace for the lowest possible melt loss. This also effects segregation of the remaining metal from the dross by melting the metal and allowing the dross to rise to the top of the bath. The improved method of the present invention provides for recovery of about 95% of aluminum metal from a dross which contains about 70% aluminum as compared with a recovery rate of about 50% aluminum metal utilizing a generally known prior art technique.

摘要翻译： 从金属轴承浮渣回收金属，特别是铝的改进方法利用了用于收集浮渣的槽。 楔形件压缩槽中的浮渣。 以这种方式，金属从压缩浮渣中倾出并流过槽底部的狭槽或槽的通道，用于收集在锅中，或者在渣槽的边缘或壁处集中。 槽和楔形构件还用于冷却浮渣材料，从而减少由于铝热反应引起的金属损失。 压缩的浮渣聚结并固化，破碎并机械分离。 来自分离过程的较大的浮渣组分基本上是金属的，并且可以通过炉再循环。 将其余组分装入涡流熔融炉中以获得尽可能低的熔体损失。 这也通过熔化金属并使浮渣上升到浴的顶部来实现残留的金属与浮渣的分离。 本发明的改进方法提供了使用通常已知的现有技术的技术，与含有约70％铝的浮渣相比，回收约95％的铝金属。

公开(公告)号：US4261737A

公开(公告)日：1981-04-14

申请号：US89837

申请日：1979-10-31

申请人： James A. Bradbury ,  Richard T. Um

发明人： James A. Bradbury ,  Richard T. Um

IPC分类号： C22B15/00 ,  B01D15/00 ,  C22B20060101 ,  C22B1/00 ,  C22B3/00 ,  C22B3/24 ,  C22B7/00 ,  C22B23/00 ,  C22B47/00 ,  C22B23/04

CPC分类号： C22B3/24 ,  Y02P10/234

摘要： The present process involves an improvement in the hydrometallurgical recovery of metal values from metal bearing sources such as ores and the like. The desired metal values are recovered by subjecting a metal bearing source to a reductive roast in a reducing atmosphere after having treated said source with at least one additive. Following the reductive roast the reduced metal bearing source is cooled and extracted by a leaching operation. The separation of various metal values in the metal bearing source may be effected by adding a solid adsorbent to the leach solution whereby selective metal ions are adsorbed thereon. The improvement in the present process comprises pretreating the solid adsorbent prior to use thereof with an acid thereby increasing the loading capacity of the metal ions in the adsorbents as well as kinetics of metal adsorption.

摘要翻译： 本发明的方法涉及从诸如矿石等金属轴承来源改进金属值的湿法冶金回收。 在用至少一种添加剂处理所述源之后，通过使金属轴承源在还原性气氛中经受还原性焙烧来回收所需的金属值。 还原烘烤后，还原金属轴承源被冷却并通过浸出操作提取。 金属轴承源中各种金属值的分离可以通过向浸出溶液中加入固体吸附剂来实现，其中选择性金属离子被吸附在其上。 本方法的改进包括在使用之前用酸预处理固体吸附剂，从而增加吸附剂中金属离子的负载能力以及金属吸附的动力学。