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公开(公告)号：US09447483B2
公开(公告)日：2016-09-20
申请号：US13837158
申请日：2013-03-15
IPC分类号： C22B3/02 , C25B9/00 , C25C1/12 , C22B60/02 , C22B3/26 , B01D11/04 , C25C1/00 , C22B3/44 , C22B3/00 , C22B19/00 , C22B34/34 , C22B59/00 , C22B61/00
CPC分类号： C25C1/22 , B01D11/0488 , C22B3/0005 , C22B3/02 , C22B3/44 , C22B11/04 , C22B19/00 , C22B23/0407 , C22B23/0453 , C22B23/0461 , C22B34/34 , C22B59/00 , C22B60/0221 , C22B60/0252 , C22B60/0278 , C22B61/00 , C25C1/00 , C25C1/08 , C25C1/10 , C25C7/00 , Y02P10/234
摘要： The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.
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公开(公告)号：US20110296951A1
公开(公告)日：2011-12-08
申请号：US13130890
申请日：2009-11-24
申请人： Gary Vernon Rorke
发明人： Gary Vernon Rorke
CPC分类号： C22B3/06 , C22B3/02 , C22B3/44 , C22B15/0067 , C22B23/0415 , C22B60/0221 , Y02P10/234 , Y02P10/236
摘要： A process for producing a ferric containing solution by the controlled oxidation of a ferrous containing solution, said process including providing a solution containing at least ferrous ions; treating the solution with one or more inlet gases containing sulfur dioxide and oxygen in order to oxidize said ferrous ions to ferric ions, wherein the delivery rate of the sulfur dioxide gas is oxidation rate limiting; and controlling the concentration of dissolved oxygen in said solution at an optimum value.
摘要翻译： 一种通过受控含铁溶液氧化生产含铁溶液的方法，所述方法包括提供至少含有亚铁离子的溶液; 用含有二氧化硫和氧气的一种或多种入口气体处理溶液，以便将所述亚铁离子氧化成铁离子，其中二氧化硫气体的输送速率是限制氧化速率; 并将所述溶液中的溶解氧浓度控制在最佳值。
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3.发明授权
公开(公告)号：US4269808A
公开(公告)日：1981-05-26
申请号：US065051
申请日：1979-08-09
申请人： Shigekatsu Kawabata
发明人： Shigekatsu Kawabata
CPC分类号： C22B60/0221 , C22B3/04 , Y02P10/234 , Y10S423/15
摘要： There is provided a method for simultaneously carrying out pulverization of ores and their leaching or extraction within a vertical abrasion mill.
摘要翻译： 提供了一种在垂直研磨机内同时进行矿石粉碎及其浸出或萃取的方法。
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公开(公告)号：US4185872A
公开(公告)日：1980-01-29
申请号：US934933
申请日：1978-08-18
申请人： Edward T. Habib, Jr.
发明人： Edward T. Habib, Jr.
CPC分类号： C22B60/0221 , E21B43/28
摘要： Process for the in-situ leaching of uranium from a subterranean ore deposit comprising introducing into the deposit an aqueous lixiviant having a pH of at least 6.0 and containing an alkali metal sulfate leaching agent. The alkali metal sulfate may be employed in combination with an alkali metal carbonate or bicarbonate with the sulfate comprising the predominant leaching agent. The lixiviant may be at a pH of at least 7.5 and contain an alkali metal sulfate leaching agent and a hypochlorite oxidizing agent.
摘要翻译： 用于从地下矿床原位浸出铀的方法，其包括将具有至少6.0的pH并含有碱金属硫酸盐浸出剂的水溶液引入沉积物中。 碱金属硫酸盐可以与碱金属碳酸盐或碳酸氢盐与含有主要浸出剂的硫酸盐组合使用。 浸渍剂的pH可以至少为7.5，并含有碱金属硫酸盐浸出剂和次氯酸盐氧化剂。
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公开(公告)号：US2964380A
公开(公告)日：1960-12-13
申请号：US48197655
申请日：1955-01-14
发明人： MORRIS KOLODNEY , HYMAN SEYMOUR C
CPC分类号： C22B34/22 , C22B60/0221
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公开(公告)号：US08708422B1
公开(公告)日：2014-04-29
申请号：US13084391
申请日：2011-04-11
IPC分类号： E21B43/28 , E21C41/16 , C01F13/00 , C01F15/00 , C01G43/00 , C01G56/00 , B01D11/00 , B01F1/00 , C22B60/02 , C02F1/00 , C02F1/68 , E02B15/00
CPC分类号： E21B43/28 , C02F1/683 , C02F2101/006 , C22B60/0221 , E21C41/16
摘要： An in situ recovery of uranium operation involves circulating reactive fluids through an underground uranium deposit. These fluids contain chemicals that dissolve the uranium ore. Uranium is recovered from the fluids after they are pumped back to the surface. Chemicals used to accomplish this include complexing agents that are organic, readily degradable, and/or have a predictable lifetime in an aquifer. Efficiency is increased through development of organic agents targeted to complexing tetravalent uranium rather than hexavalent uranium. The operation provides for in situ immobilization of some oxy-anion pollutants under oxidizing conditions as well as reducing conditions. The operation also artificially reestablishes reducing conditions on the aquifer after uranium recovery is completed. With the ability to have the impacted aquifer reliably remediated, the uranium recovery operation can be considered inherently safe.
摘要翻译： 铀操作的原位回收涉及通过地下铀矿床循环反应流体。 这些液体含有溶解铀矿石的化学物质。 在将它们泵回表面之后，从流体中回收铀。 用于实现这一目的的化学品包括有机物，易降解的和/或在含水层中具有可预计寿命的络合剂。 通过开发针对复合四价铀而不是六价铀的有机物来提高效率。 该操作提供了一些氧阴离子污染物在氧化条件下的原位固定以及还原条件。 铀矿回收完成后，人为地恢复了含水层的还原条件。 有能力使受影响的含水层得到可靠的补救，铀恢复操作可以被认为是固有安全的。
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公开(公告)号：US06241800B1
公开(公告)日：2001-06-05
申请号：US09389673
申请日：1999-09-02
申请人： Edward J. Lahoda , Khoa T. Ha
发明人： Edward J. Lahoda , Khoa T. Ha
IPC分类号： C22B304
CPC分类号： C22B60/0221 , C22B7/002 , C22B7/04 , C22B60/0213 , C22B60/0226 , G21F9/30 , Y02P10/212
摘要： A method of recovering contaminating or valuable components from a solid feed material (10), includes feeding the material (10) into an optional grinder as a pretreatment (12), then into a heated melter (14) along with a material (16) that provides fluorine, to provide a molten or semi-molten material, where the molten material is then reacted with water or an acid solution (22) in vessel (20), to form a dissolved molten or semi-molten salt in solution, which can be passed to extractor (26) or the like and provide a concentrated stream of the valuable or contaminating components (30).
摘要翻译： 从固体进料（10）回收污染或有价值的组分的方法包括将材料（10）作为预处理（12）进料到可选的研磨机中，然后与材料（16）一起进入加热的熔化器（14） 提供氟以提供熔融或半熔融材料，其中熔融材料然后与水或容器（20）中的酸性溶液（22）反应，以在溶液中形成溶解的熔融或半熔融盐，其中 可以送到萃取器（26）等，并提供有价值或污染成分（30）的浓缩流。
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公开(公告)号：US4892715A
公开(公告)日：1990-01-09
申请号：US451699
申请日：1982-12-20
申请人： Robert L. Horton
发明人： Robert L. Horton
CPC分类号： C22B3/04 , C22B1/02 , C22B60/0208 , C22B60/0221 , Y02P10/234 , Y10S423/15
摘要： Mineral values, particularly uranium, are recovered from ground mineral-containing ore by contacting the ground ore with an oxidizing gas and leaching with an acidic or alkaline leach solution. The oxidizing gas treatment significantly increases minerals recovery and/or significantly reduces the severity of the conditions required, particularly the temperature and the concentration of leach chemicals. Further improvements are attained by separating a total ore into a coarse fraction and a fines fraction and separately treating at least a part of these two fractions. The sequence of operations, i.e., treating with oxidizing gas and leaching, the manner of leaching and the conditions of leaching are varied to obtain significantly improved results, based on the discoveries that a coarse fraction is substantially easier to leach than the total ore or the fines fraction and treatment with an oxidizing gas significantly improves the ease of leaching, particularly of the fines fraction.
摘要翻译： 通过使研磨矿石与氧化气体接触并用酸性或碱性浸出溶液浸出，从含矿物矿石中回收矿物价值，特别是铀。 氧化气处理显着增加矿物回收率和/或显着降低所需条件的严重性，特别是沥滤化学品的温度和浓度。 通过将总矿石分离成粗级分和细粒级分并分别处理这两种级分的至少一部分来实现进一步的改进。 基于发现，粗分数比总矿石或总矿石更容易浸出的发现，改变操作顺序，即用氧化气体处理和浸出，浸出方式和浸出条件，以获得显着改进的结果。 细粉碎部分和用氧化气体处理显着提高了浸出的容易性，特别是细粉碎部分。
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公开(公告)号：US4324764A
公开(公告)日：1982-04-13
申请号：US171394
申请日：1980-07-23
申请人： Shoichi Hasegawa , Thoru Yamashita , Mitsuo Kameda
发明人： Shoichi Hasegawa , Thoru Yamashita , Mitsuo Kameda
IPC分类号： C22B3/00 , C22B3/04 , C22B23/00 , C22B34/22 , C22B60/02 , B01D11/02 , B01J4/00 , B01J8/02 , C22B3/02
CPC分类号： C22B60/0221 , C22B3/04 , Y02P10/234
摘要： A process for the continuous leaching of ores and an apparatus for practising this continuous leaching process are disclosed. According to this process, a plurality of unit layers composed of a pulverized uranium ore or other ore are continuously laminated while a minimum necessary amount of an acid, alkali or organic solvent (hereinafter referred to as "solvent") is uniformly sprinkled on the flat surfaces of these unit layers. In the state where the concentration of the solvent mixed into the ore is maintained at a high level, the heat generated by exothermic reaction caused by contact among the solvent, ore and water is effectively stored and used for thermally curing the ore. According to this process, the speed of extraction of the intended metal component can be increased, the leaching time shortened and the filtration characteristics improved, whereby a highly concentrated pregnant liquor can be recovered at a high efficiency.
摘要翻译： 公开了一种用于连续浸出矿石的方法和用于实施这种连续浸出方法的装置。 根据该方法，连续层叠由粉碎的铀矿或其他矿石构成的多个单位层，同时将最少量的酸，碱或有机溶剂（以下称为“溶剂”）均匀地喷洒在平面上 这些单元层的表面。 在混合到矿石中的溶剂的浓度保持在高水平的状态下，由溶剂，矿石和水之间的接触引起的放热反应产生的热量被有效地储存并用于热处理矿石。 根据该方法，可以提高目标金属成分的提取速度，浸出时间缩短，过滤特性提高，能够高效率地回收高浓度的怀疑液。
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公开(公告)号：US4302429A
公开(公告)日：1981-11-24
申请号：US15207
申请日：1979-02-26
申请人： Bernard C. Lawes , John C. Watts
发明人： Bernard C. Lawes , John C. Watts
CPC分类号： C22B60/0247 , C22B60/0221 , C22B60/0278 , E21B43/28
摘要： In a process for the solution mining of a uranium ore formation using an aqueous alkaline carbonate leaching solution containing hydrogen peroxide as oxidant, the solution is passed through the ore formation in the presence of an alkylidene-1,1-diphosphonic acid. Such an acid has been found to be unique in its capability for stabilizing the peroxide against decomposition in the presence of the uranium ore.
摘要翻译： 在使用含有过氧化氢作为氧化剂的碱性碳酸盐水溶液的水溶液开采铀矿石地层的方法中，在亚烷基-1,1-二膦酸的存在下使溶液通过矿石形成。 已经发现，这种酸在其在铀矿存在下稳定过氧化物不会分解的能力是独一无二的。
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