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    Beneficiation process for low grade uranium ores
    1.
    发明申请
    Beneficiation process for low grade uranium ores 有权
    低品位铀矿的采收程序

    公开(公告)号：US20150267279A1

    公开(公告)日：2015-09-24

    申请号：US14435780

    申请日：2013-04-23

    申请人： URANIUM BENEFICIATION PTY LTD

    发明人： Murray Philip Hill

    IPC分类号： C22B60/02 ,  B03B7/00 ,  C22B3/06 ,  C22B1/00 ,  C22B3/12

    CPC分类号： C22B60/0208 ,  B03B7/00 ,  C22B1/00 ,  C22B3/06 ,  C22B3/12 ,  C22B60/0204 ,  C22B60/0226 ,  C22B60/0247

    摘要： The disclosure relates to a beneficiation process for low grade uranium ore, wherein the process comprises a primary beneficiation stage comprising: wet scrubbing the low grade uranium ore to separate the low grade ore into a fine fraction and a coarse fraction; screening the fine fraction according to a size separation parameter to provide an undersize fraction and an oversize fraction, wherein the uranium predominantly reports to the undersize fraction; and separating the undersize fraction to produce an intermediate uranium concentrate. The intermediate uranium concentrate may be further processed in a secondary beneficiation stage to produce a high grade uranium concentrate.

    摘要翻译： 本公开涉及低等级铀矿石的选矿方法，其中该方法包括主要选矿阶段，包括：湿法洗涤低品位铀矿石以将低品位矿石分离成细级馏分和粗级分; 根据尺寸分离参数筛选细分，以提供过小部分和过大分数，其中铀主要报告给过小部分; 并分离过小的馏分以产生中间体铀浓缩物。 中间铀浓缩物可以在二次选矿阶段进一步处理，以生产高品位铀浓缩物。

    Method of catalytic oxidation of U4+ to U6+ using a catalyst Muhamedzhan-1
    2.
    发明申请
    Method of catalytic oxidation of U4+ to U6+ using a catalyst Muhamedzhan-1 审中-公开
    使用催化剂Muhamedzhan-1将U4 +催化氧化成U6 +的方法

    公开(公告)号：US20130104698A1

    公开(公告)日：2013-05-02

    申请号：US13317960

    申请日：2011-11-01

    申请人： Yerkin Aibassov ,  Saltanat Aibassova ,  Gizatulla Aibassov ,  Zhaken Aibassov ,  Mukhamejan Aibassov ,  Bakhyt Abenov

    发明人： Yerkin Aibassov ,  Saltanat Aibassova ,  Gizatulla Aibassov ,  Zhaken Aibassov ,  Mukhamejan Aibassov ,  Bakhyt Abenov

    IPC分类号： C22B60/02 ,  B01J31/02 ,  B01J27/232 ,  B01J27/25 ,  B01J27/24 ,  B01J27/053 ,  B01J27/122 ,  B01J27/128 ,  B01J27/08 ,  B01J31/32 ,  B01J31/30 ,  B01J31/28 ,  B01J27/20 ,  B01J27/10 ,  B01J27/055 ,  B01J23/04 ,  B01J31/26

    CPC分类号： C22B60/0247 ,  C22B60/0234

    摘要： The proposed methods are exemplarily utilized in uranium hydrometallurgy for selective extraction of uranium out of ore by in situ or heap leaching. According to the disclosure, the methods encompass catalytic oxidation of U4+ to U6+ using a proposed oxidizing catalyst “Muhamedzhan-1”, filtration of this solution through ore, transferring hexavalent uranium, trivalent iron, and other metal ions into a production solution, extraction of uranium yielding a barren solution and re-circulation of this solution back for ore leaching. The methods essentially improve known technologies by employing “Muhamedzhan-1”, being a solution of d- and f-mixed valence metal salts (MLn, wherein M=Fe, U, Cu, Mn, and L=NO3−, SO42−Cl−, Br−, I−) and alkali metal halogenides (MX, wherein M=Na+, Na+, K+, and X=Cl−, Br−, I−) used as an oxidizing agent, with the weight ratio of MLn: 0.01-25.0%, MX: 0.01-12.5%, and solvent: balance.

    摘要翻译： 所提出的方法被示例性地用于铀湿法冶金用于通过原位或堆浸选择性提取矿石中的铀。 根据本发明，所述方法包括使用提出的氧化催化剂“Muhamedzhan-1”将U4 +催化氧化成U6 +，通过矿石过滤该溶液，将六价铀，三价铁等金属离子转移到生产溶液中，萃取 铀产生贫瘠的溶液，并将该溶液重新循环回用于矿石浸出。 该方法通过采用“Muhamedzhan-1”作为d-和f-混合价态金属盐（MLn，其中M = Fe，U，Cu，Mn和L = NO3-，SO42-Cl - ，Br - ，I-）和用作氧化剂的碱金属卤化物（MX，其中M = Na +，Na +，K +和X = Cl-，Br-，I-），其重量比为MLn：0.01 -25.0％，MX：0.01-12.5％，溶剂平衡。

    Selective removal of arsenical material in the course of an alkaline process for treating a uraniferous and/or molybdeniferous ore by means of a magnesium compound
    3.
    发明授权
    Selective removal of arsenical material in the course of an alkaline process for treating a uraniferous and/or molybdeniferous ore by means of a magnesium compound 失效
    在通过镁化合物处理含尿和/或钼矿石的碱性方法的过程中选择性去除砷物质

    公开(公告)号：US4634579A

    公开(公告)日：1987-01-06

    申请号：US474597

    申请日：1983-03-07

    申请人： Pierre Maurel ,  Jean-Michel Lamerant ,  Francois Pallez

    发明人： Pierre Maurel ,  Jean-Michel Lamerant ,  Francois Pallez

    IPC分类号： C01G28/02 ,  C22B3/44 ,  C22B30/04 ,  C22B34/34 ,  C22B60/02

    CPC分类号： C22B60/0278 ,  C01G28/023 ,  C22B3/44 ,  C22B30/04 ,  C22B34/34 ,  C22B60/0247 ,  Y02P10/234

    摘要： A process for the selective removal of arsenical material in the course of a process for the hot oxidizing attack on a uraniferous and/or molybdeniferous ore containing arsenical materials, comprising attacking said ore with an aqueous liquor of sodium or potassium carbonate and/or bicarbonate, said attack operation being carried out under conditions with respect to levels of concentration, temperatures and pressures which cause solubilization of the uranium and/or molybdenum and the arsenic present in the ore, then collecting a suspension of a solid phase in a liquid phase, and finally, separating said phases, wherein the arsenic which is solubilized in the attack operation is extracted in the form of magnesium arsenate by treating the material containing the arsenic with a magnesium compound.

    摘要翻译： PCT No.PCT / FR82 / 00128 Sec。 371日期1983年3月7日 102（e）日期1983年3月7日PCT Filed 1982年7月27日PCT公布。 公开号WO83 / 00509 日期：1983年2月17日。一种用于在对含有砷物质的含铀和/或含钼矿石进行热氧化攻击的过程中选择性除去砷物质的方法，包括用钠或 碳酸钾和/或碳酸氢盐，所述攻击操作在关于浓度，温度和压力水平的条件下进行，这些浓度，温度和压力导致铀和/或钼和存在于矿石中的砷溶解，然后收集固体的悬浮液 相中，最后分离所述相，其中通过用镁化合物处理含有砷的材料，以攻击操作溶解的砷被提取为砷酸镁的形式。

    Process for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals
    4.
    发明授权
    Process for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals 失效
    从这样的矿石中回收铌和/或钽化合物的方法，还含有铀，钍，钛和/或稀土金属络合物

    公开(公告)号：US4446116A

    公开(公告)日：1984-05-01

    申请号：US361275

    申请日：1982-03-24

    申请人： Bruno Krismer ,  Axel Hoppe

    发明人： Bruno Krismer ,  Axel Hoppe

    IPC分类号： C22B3/26 ,  C22B34/12 ,  C22B34/24 ,  C22B60/00 ,  C22B60/02

    CPC分类号： C22B60/0226 ,  C22B3/0021 ,  C22B34/125 ,  C22B34/24 ,  C22B60/00 ,  C22B60/0208 ,  C22B60/023 ,  C22B60/0234 ,  C22B60/0239 ,  C22B60/0247 ,  C22B60/0278 ,  C22B60/0291 ,  Y02P10/234

    摘要： A process for recovering one or more nonradioactive transition metal compounds from an ore containing one or more compounds of said transition metal or metals and further containing at least one complex of a member selected from the group consisting of uranium, thorium, radium, titanium, and rare earth metals, which comprises decomposing said ore in crushed condition by means of an acid so that a portion of the ore is brought into solution in a liquid phase and another portion of the ore remains in a solid phase, said compound or compounds of the transition metal or metals to be recovered passing into only the liquid or into only the solid phase, the uranium in the crushed ore being treated so as to cause substantially all of said uranium to be present in an oxidation state in which it cannot, during the decomposition step, pass into the phase containing the transition metal compound or compounds.

    摘要翻译： 一种从含有一种或多种所述过渡金属或金属化合物的矿石中回收一种或多种非放射性过渡金属化合物的方法，还含有至少一种选自铀，钍，镭，钛和 稀土金属，其包括通过酸在破碎状态下分解所述矿石，使得一部分矿石在液相中溶解并且另一部分矿石保持在固相中，所述化合物或其化合物 待回收的过渡金属或金属仅通过液体或仅进入固相，处理的粉碎矿石中的铀基本上使所有的铀以氧化态存在，其中不能在 分解步骤，进入含有过渡金属化合物或化合物的相。

    Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation
    5.
    发明授权
    Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation 失效
    通过浓缩的碱性液体同时进行铀沉淀，对含铀矿石进行热氧化攻击的过程

    公开(公告)号：US4400359A

    公开(公告)日：1983-08-23

    申请号：US172140

    申请日：1980-07-25

    申请人： Pierre Maurel ,  Francois Nicolas

    发明人： Pierre Maurel ,  Francois Nicolas

    IPC分类号： C22B60/02

    CPC分类号： C22B60/0247 ,  Y02P10/212

    摘要： The present invention concerns a continuous process for the oxidizing attack of a uraniferous ore by means of an aqueous recycling liquor which contains in a dissolved state alkaline carbonate and bicarbonate and uranium at a concentration close to the limit of solubility thereof at the temperature of the attack operation. The uranium which is precipitated in the course of the attack operation is collected within the solid phase which remains after attack. By redissolution in a suitable aqueous liquor and separation from the sterile materials, a uraniferous liquor is obtained.

    摘要翻译： 本发明涉及通过含水循环液的含水矿石的氧化侵蚀的连续方法，其在溶解状态下含有碱性碳酸盐和碳酸氢盐和铀，其浓度接近其在攻击温度下的溶解度极限 操作。 在攻击过程中沉淀的铀被收集在攻击后保持的固相中。 通过在合适的含水液体中再溶解并与无菌材料分离，得到尿素液体。

    Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation
    6.
    发明授权
    Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation 失效
    在原位浸出操作中混合气态氧化剂和浸出剂的方法和装置

    公开(公告)号：US4339152A

    公开(公告)日：1982-07-13

    申请号：US846874

    申请日：1977-10-31

    申请人： Bert J. Warner ,  Melwyn L. Mathis ,  Warren F. Johnson

    发明人： Bert J. Warner ,  Melwyn L. Mathis ,  Warren F. Johnson

    IPC分类号： C22B60/02 ,  E21B41/00 ,  E21B43/28

    CPC分类号： E21B41/0078 ,  C22B60/0208 ,  C22B60/0247 ,  E21B43/28

    摘要： Method and apparatus for mixing a gaseous oxidant (e.g., oxygen) and a lixiviant (e.g., an aqueous carbonate solution) at a downhole location before the oxygen-saturated lixiviant is injected into a formation to be leached. The invention involves establishing a mixing zone in the well by positioning a mixing means, comprising a housing, in the well at the downhole location. Lixiviant is flowed down the well and through a restrictive opening in the housing to substantially increase the flow velocity of the lixiviant. At the same time, gaseous oxidant is fed to the housing and is trapped therein by the increased velocity of the lixiviant and by packing material in said housing. The lixiviant flows through the trapped oxidant which, in turn, dissolves into the lixiviant to saturate same. Additional packing material is provided in the housing to remove undissolved oxidant from the saturated lixiviant before it is injected into a formation to be leached.

    摘要翻译： 在将氧饱和的浸渍剂注入到要沥滤的地层中之前，将井下位置处的气态氧化剂（例如氧气）和浸渍剂（例如碳酸水溶液）混合的方法和装置。 本发明涉及通过在井下位置将包括壳体的混合装置定位在井中来在井中建立混合区。 浸泡液沿着井流动并通过壳体中的限制性开口，以大大增加浸渍剂的流速。 同时，气态氧化剂被供给到壳体中并且通过浸取物的增加的速度和通过在所述壳体中包装材料而被捕获。 浸渍剂流过捕获的氧化剂，其又溶解到浸渍剂中以使其饱和。 另外的包装材料被提供在外壳中，以便在被注入到要浸出的地层中之前从饱和浸泡剂中除去未溶解的氧化剂。

    Solution mining utilizing dissolved oxygen with elimination of entrained gas
    7.
    发明授权
    Solution mining utilizing dissolved oxygen with elimination of entrained gas 失效
    利用溶解氧消除夹带气体的解决方案开采

    公开(公告)号：US4175789A

    公开(公告)日：1979-11-27

    申请号：US900038

    申请日：1978-04-25

    申请人： Wolfram H. Kube ,  David L. Shuck

    发明人： Wolfram H. Kube ,  David L. Shuck

    IPC分类号： C22B3/08 ,  C22B3/14 ,  C22B60/02 ,  E21B43/28 ,  E21B43/40

    CPC分类号： C22B3/08 ,  C22B3/12 ,  C22B3/14 ,  C22B60/0234 ,  C22B60/0247 ,  E21B43/28 ,  E21B43/40 ,  Y02P10/234

    摘要： A method for leaching mineral values from an underground ore body in situ comprises introducing an oxygen-bearing gas into a pressurized saturation-disengagement chamber located above ground of the ore body where the oxygen-bearing gas becomes dissolved in a leach solution. The leach solution with dissolved oxygen therein is then pumped into the well and through the ore body where the leach solution oxidizes the mineral values in the ore body permitting their solubilization and transport by the leach solution to a recovery well where the pregnant leach solution is pumped above ground. The pregnant leach solution is then treated to remove the mineral values therefrom. Insuring that the oxygen-bearing gas is completely dissolved in the leach solution above ground in the saturation-disengagement chamber prevents gas bubbles from being pumped into the ore formation, thereby preventing loss of injectivity.

    摘要翻译： 一种从地下矿体原位浸取矿物质的方法包括将含氧气体引入位于矿体上方的加压饱和分离室，其中含氧气体溶解在浸出溶液中。 然后将其中溶解氧的浸出溶液泵入井中并通过矿体，其中浸出溶液氧化矿体中的矿物值，使其溶解并通过浸出溶液输送到回收井，在该回收井中，抽出的浸出溶液被泵送 地上 然后处理怀孕的浸出溶液以从其中除去矿物值。 确保含氧气体在饱和分离室内完全溶解在地上的浸出溶液中，防止气泡被泵入矿石地层，从而防止喷射性的损失。