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    Oil content sensor
    2.
    发明授权
    Oil content sensor 有权

    公开(公告)号：US10591441B2

    公开(公告)日：2020-03-17

    申请号：US16416564

    申请日：2019-05-20

    Applicant: Battelle Memorial Institute

    Inventor： Slawomir Winecki ,  Richard J. Davis, III ,  Martin V. Melnik

    IPC: G01N27/82 ,  G01N27/90 ,  G01F1/74 ,  G01F1/86 ,  G01F23/26 ,  G01R27/06 ,  G01N27/02 ,  G01N33/28 ,  G01N33/24 ,  G01N27/22

    Abstract: The present disclosure relates to systems and methods for measuring oil/water content in oil-water mixtures, regardless of the salinity of the mixture and regardless of air in the sensor pipe. In some embodiments, the oil content is measured using a dielectric sensor. It is determined whether the oil content is above or below a threshold. If the oil content is above the threshold, the oil content is reported using the measurement from the dielectric sensor. If the oil content is below the threshold, the oil content is reported using the measurement from the eddy current sensor. In some embodiments, which improve performance when there is air in the sensor pipe, two dielectric sensors with different geometries are used instead of the one dielectric sensor.

    METHODS FOR RECOVERY OF RARE EARTH ELEMENTS FROM COAL
    7.
    发明申请
    METHODS FOR RECOVERY OF RARE EARTH ELEMENTS FROM COAL 审中-公开

    公开(公告)号：US20200002785A1

    公开(公告)日：2020-01-02

    申请号：US16541444

    申请日：2019-08-15

    Applicant: Battelle Memorial Institute

    Inventor： Rick Peterson ,  Michael Heinrichs ,  Vinay V. Gadkari ,  Rachid Taha ,  Slawomir Winecki ,  Darwin Argumendo

    IPC: C22B59/00 ,  C22B3/06 ,  C22B7/00 ,  C01B39/02

    Abstract: Methods of recovering rare earth elements, vanadium, cobalt, or lithium from coal are described. The coal is dissolved in a first solvent to dissolve organic material in the coal and create a slurry containing coal ash enriched with rare earth elements, vanadium, cobalt, or lithium. The enriched coal ash is separated from the first solvent. Residual organic material is removed from the coal ash. The rare earth elements, vanadium, cobalt, or lithium can then be recovered from the coal ash. The coal ash is mixed with an acid stream that dissolves the rare earth elements, thereby creating (i) a leachate containing the rare earth elements and (ii) leached ash. The leachate is heated to obtain acid vapor and an acid-soluble rare earth concentrate. The acid-soluble rare earth concentrate can be fed to a hydrometallurgical process to separate and purify the rare earth elements.

    SYSTEMS FOR ACID DIGESTION PROCESSES
    8.
    发明申请
    SYSTEMS FOR ACID DIGESTION PROCESSES 审中-公开

    公开(公告)号：US20200002784A1

    公开(公告)日：2020-01-02

    申请号：US16541355

    申请日：2019-08-15

    Applicant: Battelle Memorial Institute

    Inventor： Rick Peterson ,  Michael Heinrichs ,  Vinay V. Gadkari ,  Rachid Taha ,  Slawomir Winecki ,  Darwin Argumedo

    IPC: C22B59/00 ,  C22B3/06 ,  C22B7/00 ,  C01B39/02

    Abstract: A system for recovering rare earth elements from coal ash includes a leaching reactor, an ash dryer downstream of the leaching reactor, and a roaster downstream of the ash dryer that is cooperatively connected to both the leaching reactor and the ash dryer. Coal ash is mixed with an acid stream such that rare earth elements present in the coal ash are dissolved in the acid stream, thereby creating (i) a leachate containing the rare earth elements and (ii) leached ash. The leachate is heated to obtain acid vapor and an acid-soluble rare earth concentrate. Mixing of the coal ash with the acid stream can occur in a leaching reactor and heating of the leachate can occur in a roaster. The acid-soluble rare earth concentrate can be fed to a hydrometallurgical process to separate and purify the rare earth elements.

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