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    TREATMENT OF AQUEOUS MINERAL SUSPENSIONS WITH POLYMERIC FLOCCULANTS
    2.
    发明申请
    TREATMENT OF AQUEOUS MINERAL SUSPENSIONS WITH POLYMERIC FLOCCULANTS 审中-公开
    用聚合物絮凝剂处理水质矿物悬浮液

    公开(公告)号：US20170036929A1

    公开(公告)日：2017-02-09

    申请号：US15303591

    申请日：2015-04-30

    Applicant: Dow Global Technologies LLC

    Inventor： Cole A. Witham ,  Matthew J. Hansen ,  James E. Hitt ,  Carol E. Mohler ,  Michael K. Poindexter

    IPC: C02F1/56 ,  C08G65/26 ,  C02F11/14 ,  C08G65/10

    CPC classification number: C02F1/56 ,  C02F11/14 ,  C02F2103/10 ,  C08G65/10 ,  C08G65/22 ,  C08G65/2645 ,  C08G65/2651 ,  C08G65/266

    Abstract: The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more epoxy or glycidyl ether functionalized hydrophobic monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

    Abstract translation: 本发明涉及一种使含水矿物悬浮液脱水的方法，包括将包含聚（环氧乙烷）共聚物，特别是环氧乙烷和一种或多种环氧或缩水甘油醚官能化疏水单体的共聚物的絮凝体系引入悬浮液中。 所述聚（环氧乙烷）共聚物可用于处理颗粒材料，特别是废矿物浆料的悬浮液。 本发明特别适用于处理由矿物加工产生的尾矿和其他废料，特别是油砂尾矿的加工。

    METHOD FOR STEAM EXTRACTION OF BITUMEN
    6.
    发明申请
    METHOD FOR STEAM EXTRACTION OF BITUMEN 审中-公开

    公开(公告)号：US20200148940A1

    公开(公告)日：2020-05-14

    申请号：US16612833

    申请日：2018-04-16

    Applicant: Dow Global Technologies LLC

    Inventor： Alexander Williamson ,  Cole A. Witham ,  Timothy J. Young

    IPC: C09K8/592 ,  C10G1/04

    Abstract: The present invention relates to an in situ bitumen recovery process from oil sands. Specifically, the present invention involves the step of treating oil sands with an alkanolamine having a hydrophilic-lipophilic balance factor (HLB-factor) of 0.5 to −2.2 as determined by summing up the Davies HLB contributions for each functional group on the substituents and applying the following equation: HLB-factor=HLB(longest chain)+0.5×HLB(second longest chain)+0.25(third longest chain).

    POLYAMINOPOLYAMIDE-EPICHLOROHYDRIN RESINS FOR USE AS CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY
    7.
    发明申请
    POLYAMINOPOLYAMIDE-EPICHLOROHYDRIN RESINS FOR USE AS CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY 有权
    聚氨酯酰胺 - 二氯乙烯树脂用作钻井行业的粘土和粉末抑制剂

    公开(公告)号：US20150353807A1

    公开(公告)日：2015-12-10

    申请号：US14649581

    申请日：2014-01-27

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Cole A. Witham ,  Michael K. Poindexter ,  Stephen W. King ,  Prashant Tatake

    IPC: C09K8/24

    CPC classification number: C09K8/24 ,  C08G73/0286 ,  C08G73/0293 ,  C08L79/02 ,  C09K2208/12

    Abstract: The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyamino polyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

    Abstract translation: 钻井作业中的粘土和页岩的水化可以通过使用包含含有多氨基聚酰胺 - 表氯醇树脂的页岩水化抑制剂的含水基钻井液来抑制，优选聚氨基聚酰胺 - 表氯醇树脂是脂肪族多胺，脂肪族 多元羧酸和表氯醇。 页岩水化抑制剂应以足够的浓度存在于含水基钻井液中，以降低暴露于水基钻井液时粘土和页岩的反应性，例如膨胀。

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