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    SEMI-CONTINUOUS RARE EARTH METAL PRODUCTION
    2.
    发明公开
    SEMI-CONTINUOUS RARE EARTH METAL PRODUCTION 审中-公开

    公开(公告)号：US20240191321A1

    公开(公告)日：2024-06-13

    申请号：US18219322

    申请日：2023-07-07

    申请人： Terves, LLC

    发明人： Andrew Sherman ,  Nicholas Farkas

    IPC分类号： C22B5/02 ,  C22B59/00 ,  C22C28/00

    CPC分类号： C22B5/02 ,  C22B59/00 ,  C22C28/00

    摘要： The present disclosure relates to a low temperature, semi-continuous process for producing high purity rare earth metals and alloys in molten salts. Rare earth metals and alloys are reduced from the corresponding rare earth halide in molten salts in a semi-continuous process. An air stable pellet or ingot can be fed into molten salts and reduced through metallothermic reduction or electrolysis. The formation of an air stable feedstock minimizes handling concerns of the hygroscopic rare earth salts, allowing the reduction process to be run in a semi-continuous process. The process can optionally include the addition of alloying elements such as magnesium, iron and zinc reduce the required processing temperature.

    Method of Assuring Dissolution of Degradable Tools
    6.
    发明申请
    Method of Assuring Dissolution of Degradable Tools 有权

    公开(公告)号：US20220145753A1

    公开(公告)日：2022-05-12

    申请号：US17540331

    申请日：2021-12-29

    申请人： Terves, LLC

    发明人： Andrew Sherman ,  Brian Doud

    IPC分类号： E21B47/11 ,  E21B29/00 ,  G01N33/24 ,  E21B29/02

    摘要： The use of degradable components has become a more common practice in subterranean operations for such applications as temporarily isolating zones or diverting flow. A major concern of operators in using degradable tools is the ability to ensure that the tool has completely degraded and is no longer blocking or obstructing flow. This issue can be resolved through the use of degradable components that include one or more chemical additives that are released upon the partial or full dissolution of the degradable component, and which can be used to facilitate in the dissolution of the degradable component. The degradable component can optionally include tracer elements that are released upon the partial or full dissolution of the degradable component, and which can be detected at the surface to ensure the desired degradation or removal of the degradable component as well as hydraulic access to that stage.

    Galvanically-active in situ formed particles for controlled rate dissolving tools
    8.
    发明授权
    Galvanically-active in situ formed particles for controlled rate dissolving tools 有权

    公开(公告)号：US10724128B2

    公开(公告)日：2020-07-28

    申请号：US15966759

    申请日：2018-04-30

    申请人： Terves Inc.

    发明人： Brian P. Doud ,  Nicholas J. Farkas ,  Andrew J. Sherman

    IPC分类号： C22F1/06 ,  C22C1/02 ,  C22C23/02 ,  C22C23/00

    摘要： A castable, moldable, and/or extrudable structure using a metallic primary alloy. One or more additives are added to the metallic primary alloy so that in situ galvanically-active reinforcement particles are formed in the melt or on cooling from the melt. The composite contain an optimal composition and morphology to achieve a specific galvanic corrosion rate in the entire composite. The in situ formed galvanically-active particles can be used to enhance mechanical properties of the composite, such as ductility and/or tensile strength. The final casting can also be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final composite over the as-cast material.

    GALVANICALLY-ACTIVE IN SITU FORMED PARTICLES FOR CONTROLLED RATE DISSOLVING TOOLS
    9.
    发明公开
    GALVANICALLY-ACTIVE IN SITU FORMED PARTICLES FOR CONTROLLED RATE DISSOLVING TOOLS 审中-公开

    公开(公告)号：US20240344189A1

    公开(公告)日：2024-10-17

    申请号：US18752536

    申请日：2024-06-24

    申请人： Terves, LLC

    发明人： Brian P. Doud ,  Nicholas J. Farkas ,  Andrew Sherman

    IPC分类号： C22F1/06 ,  C22C1/02 ,  C22C23/00 ,  C22C23/02

    CPC分类号： C22F1/06 ,  C22C1/02 ,  C22C23/00 ,  C22C23/02

    摘要： A castable, moldable, and/or extrudable structure using a metallic primary alloy. One or more additives are added to the metallic primary alloy so that in situ galvanically-active reinforcement particles are formed in the melt or on cooling from the melt. The composite contains an optimal composition and morphology to achieve a specific galvanic corrosion rate in the entire composite. The in situ formed galvanically-active particles can be used to enhance mechanical properties of the composite, such as ductility and/or tensile strength. The final casting can also be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final composite over the as-cast material.