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    Batch solution mining using lithological displacement of an evaporite mineral stratum and mineral dissolution with stationary solvent
    1.
    发明申请
    Batch solution mining using lithological displacement of an evaporite mineral stratum and mineral dissolution with stationary solvent 有权
    使用蒸发岩矿物层的岩性位移和固定溶剂矿物溶解的批量溶液开采

    公开(公告)号：US20160356139A1

    公开(公告)日：2016-12-08

    申请号：US14062877

    申请日：2013-10-24

    Applicant: SOLVAY SA

    Inventor： Jean-Paul DETOURNAY ,  Ronald O. HUGHES ,  Herve CUCHE ,  Matteo PAPERINI ,  Joseph A. VENDETTI ,  Larry C. REFSDAL ,  David M. HANSEN ,  Todd BRICHACEK ,  Justin T. PATTERSON ,  John KOLESAR ,  Ryan SCHMIDT ,  Beatrice C. ORTEGO

    IPC: E21B43/28

    CPC classification number: E21B43/28 ,  E21B43/283

    Abstract: Batch initiation and/or exploitation phases of in situ solution mining of a mineral from an underground evaporite mineral stratum. The initiation phase may comprise a lifting step which employs a lithological displacement (lifting) of this stratum from an underlying non-evaporite stratum with application at the strata interface of a lifting hydraulic pressure greater than overburden pressure by a solvent suitable to dissolve the mineral; a soaking step for dissolution of mineral upon contact with stationary solvent, and a brine extraction step. The method may further comprise one or more exploitation phases carried out after the initiation phase. The exploitation phase may comprise a partial filing or filling step with the same solvent or different solvent than during lifting, another soaking step, and another brine extraction step. The lifting, cavity partial filing/filling, and brine extraction steps are being discontinuous. The evaporite mineral stratum preferably comprises trona.

    Abstract translation: 从地下蒸发岩矿物地层开采矿物的原位溶液的批次启动和/或开采阶段。 起始阶段可以包括提升步骤，其采用来自下面的非蒸发岩层的该层的岩性位移（提升），其通过适于溶解矿物的溶剂施加在大于上覆压力的提升液压的地层界面处; 用于在与固定溶剂接触时溶解矿物的浸泡步骤和盐水提取步骤。 该方法还可以包括在起始阶段之后进行的一个或多个开采阶段。 开采阶段可以包括与提升，另一个浸泡步骤和另一个盐水提取步骤相同的溶剂或不同溶剂的部分填充或填充步骤。 提升，空腔部分填充/填充和盐水提取步骤是不连续的。 蒸发岩矿物层优选包含天然碱。

    PRODUCTION OF CRYSTALLINE SODIUM BICARBONATE
    2.
    发明申请
    PRODUCTION OF CRYSTALLINE SODIUM BICARBONATE 审中-公开

    公开(公告)号：US20180230018A1

    公开(公告)日：2018-08-16

    申请号：US15761896

    申请日：2016-09-22

    Applicant: Solvay SA

    Inventor： James C. KISIELEWSKI ,  David M. HANSEN ,  Keith O. HAYES ,  Mayra MUCI-CASTANEDA ,  Alain VANDENDOREN

    IPC: C01D7/40 ,  C01D7/24 ,  C01D7/10

    CPC classification number: C01D7/40 ,  C01D7/10 ,  C01D7/24

    Abstract: A process for producing crystalline sodium bicarbonate, comprising: providing an aqueous sodium-bicarbonate containing liquor originating from a reactive crystallization step in which first sodium bicarbonate crystals are produced and recovered; feeding at least a portion of said aqueous sodium-bicarbonate containing liquor to a cooling crystallization unit to form second sodium bicarbonate crystals and produce a crystals slurry comprising the second sodium bicarbonate crystals; and withdrawing a portion of the crystals slurry from the cooling crystallization unit for the withdrawn second sodium bicarbonate crystals to be further processed. A portion of the second sodium bicarbonate crystals withdrawn from the cooling crystallization unit may be fed to a sodium bicarbonate reactive crystallization unit, to a caustic unit, or may be separated and dried. The reactive crystallization, separation and/or drying units where the second sodium bicarbonate crystals are further processed may be the same units where the first sodium bicarbonate crystals are processed.

    Multi-well solution mining exploitation of an evaporite mineral stratum
    3.
    发明申请
    Multi-well solution mining exploitation of an evaporite mineral stratum 审中-公开
    蒸发岩矿层的多井解决方案开采

    公开(公告)号：US20160356157A1

    公开(公告)日：2016-12-08

    申请号：US14212935

    申请日：2014-03-14

    Applicant: SOLVAY SA

    Inventor： Ronald O. HUGHES ,  Matteo PAPERINI ,  Herve CUCHE ,  Joseph A. VENDETTI ,  Larry C. REFSDAL ,  Jean-Paul DETOURNAY ,  David M. HANSEN ,  Todd BRICHACEK ,  Justin T. PATTERSON ,  John KOLESAR ,  Ryan SCHMIDT ,  Beatrice C. ORTEGO

    IPC: E21C41/16 ,  E21C37/00 ,  C22B3/12

    CPC classification number: E21B43/283

    Abstract: A method for in situ solution mining of a mineral from an underground evaporite stratum using a set of wells in fluid communication with at least one mineral cavity with some wells operated in solvent injection mode and other wells operated in brine production mode and optionally with some inactive wells, comprising switching the operation mode of one or more wells. The evaporite mineral preferably comprises trona. The at least one cavity is preferably formed by lithological displacement of the evaporite stratum at a weak interface with an underlying insoluble stratum by application of a lifting hydraulic pressure. The extracted brine can be processed to make valuable products such as soda ash and/or any derivatives thereof, rock salt, or potash. This method can provide more uniform dissolution of mineral in the cavity, can minimize flow channeling, can minimize sodium bicarbonate blinding for solution mining of incongruent trona ore, and/or may avoid uneven deposit of insolubles.

    Abstract translation: 一种用于使用一组与至少一个矿物腔流体连通的孔的原位溶液从地下蒸发岩层中开采矿物的方法，其中一些井以溶剂注入模式操作，其他井以盐水生产模式操作，并且可选地具有一些非活性的 井，包括切换一个或多个井的操作模式。 蒸发岩矿物优选包含天然碱。 优选地，通过施加提升液压，通过在与弱潜层的弱界面处的蒸发岩层的岩性位移来形成至少一个空腔。 可以处理提取的盐水以制造有价值的产品，例如苏打灰和/或其任何衍生物，岩盐或钾盐。 这种方法可以提供更均匀的矿物溶解在空腔中，可以最小化流动通道，可以最大程度地减少不协调的天然碱矿石溶液开采的碳酸氢钠盲目，和/或可以避免不均匀沉积。

    Multi-well solution mining exploitation of an evaporite mineral stratum
    5.
    发明申请
    Multi-well solution mining exploitation of an evaporite mineral stratum 有权
    蒸发岩矿层的多井解决方案开采

    公开(公告)号：US20150260025A1

    公开(公告)日：2015-09-17

    申请号：US14657448

    申请日：2015-03-13

    Applicant: SOLVAY SA

    Inventor： Ronald O. HUGHES ,  Matteo PAPERINI ,  Herve CUCHE ,  Joseph A. VENDETTI ,  Larry C. REFSDAL ,  Jean-Paul DETOURNAY ,  David M. HANSEN ,  Todd BRICHACEK ,  Justin T. PATTERSON ,  John KOLESAR ,  Ryan SCHMIDT ,  Beatrice C. ORTEGO

    IPC: E21B43/28 ,  C22B3/46 ,  E21B43/30 ,  C22B26/10

    CPC classification number: E21B43/28 ,  C22B3/46 ,  C22B26/10 ,  E21B43/283 ,  E21B43/30 ,  E21B43/305

    Abstract: A method for in situ solution mining of a mineral from an underground evaporite stratum using a set of wells in fluid communication with at least one mineral cavity with some wells operated in solvent injection mode and other wells operated in brine production mode and optionally with some inactive wells, comprising switching the operation mode of one or more wells. The evaporite mineral preferably comprises trona. The at least one cavity may be formed by directionally drilled uncased boreholes or by lithological displacement of the evaporite stratum at a weak interface with an underlying insoluble stratum by application of a lifting hydraulic pressure to create an interfacial gap. The extracted brine can be processed to make valuable products such as soda ash and/or any derivatives thereof. This method can provide more uniform dissolution of mineral in the cavity, minimize flow channeling, minimize sodium bicarbonate blinding for solution mining of incongruent trona ore, and/or may avoid uneven deposit of insolubles.

    Abstract translation: 一种用于使用一组与至少一个矿物腔流体连通的孔的原位溶液从地下蒸发岩层中开采矿物的方法，其中一些井以溶剂注入模式操作，其他井以盐水生产模式操作，并且可选地具有一些非活性的 井，包括切换一个或多个井的操作模式。 蒸发岩矿物优选包含天然碱。 至少一个空腔可以通过定向钻孔的未经钻井的钻孔或通过施加提升液压在与弱潜层的弱界面处的岩石位移而形成以形成界面间隙。 可以处理提取的盐水以制造有价值的产品，例如苏打灰和/或其任何衍生物。 这种方法可以提供更均匀的矿物溶解在空腔中，使流动通道最小化，最大程度地减少碳酸氢钠盲目的溶液开采不一致的天然碱矿石，和/或可以避免不均匀沉积物。

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