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    DEGRADATION-RESISTANT SCALE INHIBITORS
    2.
    发明申请
    DEGRADATION-RESISTANT SCALE INHIBITORS 审中-公开
    抗降解抗菌剂抑制剂

    公开(公告)号：WO2016064432A1

    公开(公告)日：2016-04-28

    申请号：PCT/US2014/071800

    申请日：2014-12-22

    Applicant: CYTEC INDUSTRIES INC.

    Inventor： SONG, Airong ,  STIGERS, Dannon ,  BAUSCH, Cory

    IPC: C01F7/06 ,  C02F5/10 ,  C23F14/02

    CPC classification number: C09D5/1625 ,  C01F7/064 ,  C02F5/10 ,  C02F5/125 ,  C23F14/02

    Abstract: Methods for reducing aluminosilicate containing scale in an alumina recovery process involving treating an alumina recovery process equipment surface with a degradation- resistant scale inhibiting composition having high ionic strength prior to exposure to an alumina recovery process stream.

    Abstract translation: 在氧化铝回收过程中还原包含氧化铝回收工艺流程的氧化铝回收工艺设备表面的方法，该方法包括在暴露于氧化铝回收工艺流之前用具有高离子强度的抗降解垢垢抑制组合物处理氧化铝回收工艺设备

    METHODS FOR RECOVERING ORGANIC SALTS FROM INDUSTRIAL PROCESS STREAMS
    3.
    发明申请
    METHODS FOR RECOVERING ORGANIC SALTS FROM INDUSTRIAL PROCESS STREAMS 审中-公开

    公开(公告)号：WO2021118938A1

    公开(公告)日：2021-06-17

    申请号：PCT/US2020/063644

    申请日：2020-12-07

    Applicant: CYTEC INDUSTRIES INC.

    Inventor： GRIFFIN, Scott ,  CALBICK, Joseph ,  STIGERS, Dannon

    IPC: C01F7/46 ,  C01F7/47

    Abstract: Methods are provided for improved recovery of organic salts, such as ionic liquids or organic salts comprising quaternary organic cations, in an industrial alumina production process, such as the Bayer process. These methods include (i) using an organic salt for the removal of impurities in an industrial process for the production of alumina; (ii) subjecting the spent organic salt to a recycling operation that generates at least one exit stream having a measureable amount of the organic salt {e.g., by entrainment or by solubility of the organic salt in the exit stream); (iii) collecting and treating the exit stream (s) with an inorganic salt, in an amount effective to induce phase separation; and (iv) recovering the organic phase containing the recovered organic salt. These methods and compositions allow alumina refinery plants to use organic salts for removal of industrial process streams in an economical manner, due to the efficient recovery of the organic salt.

    OIL-FREE CRYSTAL GROWTH MODIFIERS FOR THE BAYER PROCESS
    4.
    发明申请
    OIL-FREE CRYSTAL GROWTH MODIFIERS FOR THE BAYER PROCESS 审中-公开
    用于拜耳法的无油晶体生长调节剂

    公开(公告)号：WO2018048820A1

    公开(公告)日：2018-03-15

    申请号：PCT/US2017/050148

    申请日：2017-09-06

    Applicant: CYTEC INDUSTRIES INC.

    Inventor： STIGERS, Dannon ,  ANDERSON, Marie, E.

    IPC: C01F7/14 ,  C01F7/02 ,  C01F7/08

    Abstract: Disclosed herein are methods of producing alumina trihydrate crystals from an alumina trihydrate recovery process stream wherein an aqueous emulsion comprising a crystal growth modifier, which is at least one of an acyclic anhydride or an alkyl or alkenyl succinic anhydride, is added to the alumina trihydrate recovery process stream, wherein the aqueous emulsion is substantially free of mineral oils. The method provides a decrease in percentage of alumina trihydrate crystals having a volume average diameter of less than about 45 micrometers compared to the percentage of alumina trihydrate crystals produced in the absence of the crystal growth modifier. The process does not require the addition of a defoamer/anti-foam agent in order to control foam generated in the process.

    Abstract translation: 本文公开了由三水合氧化铝回收工艺物流生产三水合氧化铝晶体的方法，其中包含晶体生长改性剂的水性乳液，所述晶体生长改性剂为无环酸酐或烷基或烯基琥珀酸酐中的至少一种 加入到三水合氧化铝回收工艺物流中，其中该水性乳液基本上不含矿物油。 与在不存在晶体生长调节剂时产生的三水合氧化铝晶体的百分比相比，该方法提供了体积平均直径小于约45微米的三水合氧化铝晶体的百分比的降低。 该过程不需要添加消泡剂/消泡剂以控制该过程中产生的泡沫。

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