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公开(公告)号：US20080050293A1
公开(公告)日：2008-02-28
申请号：US10578533
申请日：2004-11-03
CPC分类号： C22B15/0071 , Y02P10/236
摘要： There is provided a method for leach extraction of copper/iron/sulphur ores and concentrates including leaching the mineral with an aqueous stream containing ferric ions and sulphuric acid in the presence of oxygen, the aqueous stream including a solution formed by reaction of basic ferric sulphate with excess suphuric acid. Integrated methods of forming and releaching basic ferric sulphate are also described.
摘要翻译： 提供了一种铜/铁/硫矿石和精矿的浸提方法，包括在氧气存在下用含有铁离子和硫酸的含水流浸出矿物，水流包括通过碱式硫酸铁反应形成的溶液 与过量的suphuric酸。 还描述了形成和分离碱式硫酸铁的综合方法。
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公开(公告)号：US20050269208A1
公开(公告)日：2005-12-08
申请号：US11141043
申请日：2005-06-01
申请人： David Dixon , Alain Tshilombo
发明人： David Dixon , Alain Tshilombo
CPC分类号： C22B3/08 , C22B3/045 , C22B15/0071 , Y02P10/234 , Y02P10/236
摘要： A method of leaching copper from copper sulphide-containing concentrates, such as chalcopyrite, includes using pyrite as a catalyst for ferric reduction in order to eliminate passivation of the chalcopyrite surface, the process being carried out under conditions whereby the pyrite is not materially oxidized, for example by maintaining the operating solution potential at a suitable level. The leaching is carried out in an acidic sulphate medium and may include oxidation by oxygen-containing gas. The leached copper is then recovered, for example by solvent extraction and electrowinning. The leaching process can result in the virtually complete extraction of copper at atmospheric pressure in as little as four hours.
摘要翻译： 从含硫化铜的浓缩物如黄铜矿中浸出铜的方法包括使用黄铁矿作为还原铁的催化剂，以消除黄铜矿表面的钝化，该方法在黄铁矿未被实质氧化的条件下进行， 例如通过将操作溶液电位维持在合适的水平。 浸出在酸性硫酸盐介质中进行，可能包括含氧气体的氧化。 然后回收浸出的铜，例如通过溶剂萃取和电解提取。 浸出过程可以在短短四个小时内大气压下几乎完全提取铜。
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公开(公告)号：US06929677B2
公开(公告)日：2005-08-16
申请号：US10451196
申请日：2001-12-11
申请人： Matti Hämäläinen
发明人： Matti Hämäläinen
CPC分类号： C22B3/10 , C22B15/0069 , Y02P10/234 , Y02P10/236
摘要： This invention relates to a method where sulfidic iron-bearing copper concentrate is leached on the countercurrent principle, in a chloride environment. The leaching takes place with the aid of bivalent copper and an oxygen-bearing gas as a multi-stage continuous process, under normal pressure, at a temperature, which as highest corresponds to the boiling point of the solution. Part of the insoluble solid matter is returned, counter to the main flow of solid matter, to one of the previous leaching stages or reactors where, as a result of the extended leaching time, the leach waste iron is recovered mostly as hematite.
摘要翻译： 本发明涉及一种在氯化物环境中以逆流原理浸出含硫铁的铜精矿的方法。 在常压下，在最高对应于溶液沸点的温度下，借助二价铜和含氧气体作为多级连续方法进行浸出。 一部分不溶性固体物质与固体物质的主要流动相对返回到之前的浸出阶段或反应器之一，由于浸出时间的延长，浸出废铁主要以赤铁矿回收。
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公开(公告)号：US20050103163A1
公开(公告)日：2005-05-19
申请号：US10501277
申请日：2003-10-01
申请人： Christopher Ward
发明人： Christopher Ward
CPC分类号： C25B1/21 , C22B3/08 , C22B47/0063 , C22B47/0081 , Y02P10/234
摘要： A process for the hydrometallurgical processing of manganese containing materials, the process characterised by the combination of a manganese dioxide containing feedstock and an acidic solution to form a leach solution, and passing a volume of sulphur dioxide gas through that leach solution, whereby the levels of dithionate ion generated in the leach solution are less than about 5 gl/l. Also described is a process for the production of electrolytic manganese dioxide.
摘要翻译： 一种用于含锰材料的湿法冶金加工的方法，该方法的特征在于将含二氧化锰的原料与酸性溶液组合以形成浸出溶液，并将一定体积的二氧化硫气体通过该浸出溶液， 在浸出溶液中产生的二硫酸根离子小于约5g / l。 还描述了生产电解二氧化锰的方法。
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公开(公告)号：US5993635A
公开(公告)日：1999-11-30
申请号：US913552
申请日：1998-01-06
IPC分类号： C22B3/04 , C22B3/08 , C22B3/20 , C22B3/44 , C22B11/00 , C22B15/00 , C22B19/00 , C22B19/02 , C22B19/20 , C22B23/00 , C25C1/00 , C25C1/06 , C25C1/12 , C25C1/20
CPC分类号： C22B3/20 , C22B19/22 , C22B23/04 , C22B3/08 , Y02P10/234
摘要： A method is provided for processing a sulphide mineral composition which at least partly comprises an iron-containing mineral. The method includes the steps of: (a) milling said composition to a particle size P80 of 20 microns or less; (b) leaching said composition with a solution comprising sulphuric acid and ferric ions at ambient pressure while sparging with an oxygen-containing gas in an open tank reactor at a temperature of up to about the boiling point of the solution, whereby at least some of the acid and at least some of the ferric ions are obtained from dissolution of the iron-containing mineral, and ferrous ions generated by the leaching reaction are substantially re-oxidised to ferric ions in the leaching solution; (c) precipitating excess iron and separating said iron together with any solid materials from the leaching solution; (d) extracting desired metal ions from the leaching solution by solvent extraction with an organic solvent, such that the raffinate comprises sulphuric acid and ferric ions; (e) returning the raffinate to the leaching tank and blending with further milled composition; and (f) separating the metals from the organic phase obtained in step (c) by stripping with electrolyte and electrowinning.
摘要翻译： PCT No.PCT / AU96 / 00157 Sec。 371日期：1998年1月6日 102（e）日期1998年1月6日PCT 1996年3月22日PCT公布。 公开号WO96 / 29439 日本1996年9月26日提供了一种加工至少部分含有铁的矿物的硫化物矿物组合物的方法。 该方法包括以下步骤：（a）将所述组合物研磨至20微米或更小的粒度P80; （b）在环境压力下用包含硫酸和铁离子的溶液浸出所述组合物，同时在开罐状态的反应器中在最高约溶液沸点的温度下用含氧气体喷射，由此至少一些 酸和至少一些铁离子是由含铁矿物的溶解获得的，并且通过浸出反应产生的亚铁离子基本上再次氧化成浸出溶液中的铁离子; （c）沉淀过量的铁，并将所述铁与来自浸出溶液的任何固体材料一起分离; （d）用有机溶剂通过溶剂萃取从浸出溶液中提取所需的金属离子，使得萃余液包含硫酸和铁离子; （e）将萃余液返回到浸出罐中并与另外研磨的组合物混合; 和（f）通过用电解质和电解提取法分离步骤（c）中获得的有机相的金属。
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公开(公告)号：US5976218A
公开(公告)日：1999-11-02
申请号：US845941
申请日：1997-04-29
CPC分类号： C01G53/003 , C22B23/0461 , C22B3/0017 , Y02P10/138 , Y02P10/234
摘要： A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of the nickel by a solvent extraction of the nickel from the aqueous ammoniacal solution with an organic phase of a water insoluble oxime extractant dissolved in a water-immiscible hydrocarbon solvent and the nickel recovered by electrowinning the nickel from the aqueous acid stripping solution employed to strip the nickel from the organic phase.
摘要翻译： 一种从含镍矿石中回收镍的方法，其中矿石，特别是红土矿石最初用酸水溶液浸出，之后通过向酸浸液溶液中加入氢氧化物将镍沉淀为氢氧化镍 含有镍，然后用氨水溶液再次浸出镍，通过溶解在水溶性肟提取剂的有机相中，从氨水溶液中溶剂萃取镍回收镍， 通过从用于从有机相剥离镍的酸性汽提溶液中电解镍来回收镍。
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公开(公告)号：US5709731A
公开(公告)日：1998-01-20
申请号：US676853
申请日：1996-07-08
申请人： William P. Armstrong
发明人： William P. Armstrong
CPC分类号： C22B1/00 , C22B3/04 , Y02P10/234
摘要： A method for concurrently transporting and leaching metal values from an ore or concentrate containing said metal values from an originating site such as an elevated site to a delivery site comprising the steps of crushing and/or grinding the ore or concentrate to form a particulate having a size range suitable for transport by gravity or a combination of pumping and gravity as a solid constituent in an aqueous slurry, forming an aqueous slurry of from about 30 to about 70 percent by weight of said particulate in an aqueous medium, and adjusting said aqueous slurry to contain an effective amount of a lixiviant for dissolution of said metal values into the aqueous medium. The aqueous slurry with lixiviant is transported in an elongated pipeline under a static pressure and for a residence time sufficient for dissolution of a substantial portion of the metal values, and the aqueous medium with the metal values is separated from the solids constituent of the slurry by a hydrocone, settling tank, thickener, lagoon, pond or heap, or counter-current decantation or washing circuit for recovery of values therefrom. The ore or concentrate may contain metal oxides, metal sulphides, native metal or a combination thereof, such as for example, a copper oxide concentrate or an ore, and the lixiviant may be sulphuric acid.
摘要翻译： 将来自含有所述金属值的矿石或浓缩物的金属值同时输送和浸出的方法，所述金属或浓缩物从起始位点如高架位置输送到输送位置，包括以下步骤：粉碎和/或研磨矿石或浓缩物以形成具有 尺寸范围适合于通过重力或泵送和重力的组合作为固体成分在水性浆料中的运输，在水性介质中形成约30至约70重量％的所述颗粒的水性浆料，并调节所述含水浆料 以含有有效量的用于将所述金属值溶解到水性介质中的浸渍剂。 具有浸渍剂的含水浆料在静态压力下在细长的管线中运输，并且足以溶解大部分金属值的停留时间，并且将金属值的水性介质与浆料的固体成分分离， 水龙头，沉淀池，增稠器，泻湖，池塘或堆，或用于从其中回收值的逆流倾析或洗涤回路。 矿石或浓缩物可以含有金属氧化物，金属硫化物，天然金属或其组合，例如氧化铜浓缩物或矿石，并且浸出剂可以是硫酸。
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公开(公告)号：US5618331A
公开(公告)日：1997-04-08
申请号：US566830
申请日：1995-12-04
申请人： Jorge Miller , Miguel Kling
发明人： Jorge Miller , Miguel Kling
IPC分类号： C01G23/053 , C22B34/12 , C22B3/08 , C01G23/047
CPC分类号： C01G23/0532 , C22B34/125 , Y02P10/212
摘要： An economic, non-polluting vapor-phase system of extracting titanium values from titanium ore or slag comprises solubilizing titanium (in ore or slag) with sulfuric acid to form titanyl sulfate, hydrolyzing the titanyl sulfate to form titanium oxide hydrate, converting the latter to pigment, and recycling sulfuric acid for extracting titanium values from further ore or slag. Methodology and equipment are provided.
摘要翻译： 从钛矿石或矿渣中提取钛值的经济，无污染的气相系统包括用硫酸溶解钛（矿石或矿渣）形成硫酸氧钛，水解硫酸氧钛，形成氧化钛水合物，将其转化为 颜料和回收硫酸，用于从进一步的矿石或矿渣中提取钛值。 提供方法和设备。
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79.发明授权Gold recovery from refractory carbonaceous ores by pressure oxidation and thiosulfate leaching 失效通过压力氧化和硫代硫酸盐浸出从难熔碳质矿石中回收金
公开(公告)号：US5536297A
公开(公告)日：1996-07-16
申请号：US389016
申请日：1995-02-10
CPC分类号： C22B11/04 , C22B3/08 , C22B3/24 , Y02P10/234
摘要： A process for recovering gold in which an ore slurry of refractory sulfidic and refractory carbonaceous ore having preg-robbing characteristics due to the presence of organic carbon is subjected to pressure oxidation in an autoclave. The oxidized ore slurry is mixed with a thiosulfate salt lixiviant, which mixture is maintained at a pH between 7 and 8.7 while the slurry is agitated in a stirred tank reactor system having agitated leach tanks. Gold is recovered from the gold-bearing leachate by cementation, adsorption on an adsorbent, or cyanidation.
摘要翻译： 一种回收金的方法，其中由于存在有机碳而具有预剥夺特性的难熔硫化物和难熔碳质矿石的矿浆在高压釜中进行压力氧化。 将氧化矿浆与硫代硫酸盐盐浸液混合，将该混合物保持在7至8.7之间的pH，同时在具有搅拌浸出罐的搅拌釜反应器系统中搅拌浆料。 通过胶结，吸附剂上的吸附剂或氰化物从含金渗滤液中回收金。
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公开(公告)号：US5437849A
公开(公告)日：1995-08-01
申请号：US64969
申请日：1993-05-20
申请人： Wolfgang Fennemann
发明人： Wolfgang Fennemann
CPC分类号： C22B3/08 , C22B34/22 , Y02P10/234
摘要： To process vanadium-containing residues, the residues are leached in an aqueous slurry with introduction of SO.sub.2, the undissolved solids are removed. To effect a processing which is simple, economical and ecologically satisfactory, vanadium content is precipitated as a tetravalent vanadium compound from the sulfate solution at a pH from 7 to 9 by an addition of alkali metal hydroxide and the precipitate is removed from the alkali metal sulfate solution.
摘要翻译： 为了处理含钒残渣，残留物通过引入SO2在含水浆液中浸出，除去未溶解的固体。 为了进行简单，经济和生态上令人满意的处理，通过加入碱金属氢氧化物，从硫酸盐溶液中将钒含量作为四价钒化合物沉淀，pH7〜9，从碱金属硫酸盐中除去沉淀物 解。
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