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21.发明申请公开(公告)号：US20200016553A1
公开(公告)日：2020-01-16
申请号：US16578484
申请日：2019-09-23
Applicant: Dow Global Technologies LLC
Inventor： Paul A. Gillis , Jason S. Moore , Billy G. Smith , Michael D. Cloeter , Michael K. Poindexter , Irfan Khan
Abstract: The present invention relates to an in-line mixing apparatus and use therein for adding a polymer solution and dewatering an aqueous mineral suspension. Said method comprises statically mixing the aqueous mineral suspension with a poly(ethylene oxide) (co)polymer to form a dough-like material. The viscous mixture material is then dynamically mixed in an in-line reactor to reduce the mixture viscosity and to form microflocs and release water. Said method is particularly useful for the treatment of suspensions of particulate material, especially waste mineral slurries, especially for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.
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22.发明授权公开(公告)号：US09776104B2
公开(公告)日：2017-10-03
申请号：US14364601
申请日：2012-12-14
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Timothy C. Frank , J. W. Moore , Paul A. Larsen , Pramod D. Patil , Robert M. Whittingslow , Paul A. Gillis
CPC classification number: B01D9/00 , B01D1/007 , B01D1/24 , B01D9/0031
Abstract: Disclosed are processes and apparatuses for producing a crystalline product. The processes and apparatuses may extend the operational time of an evaporative crystallizer by providing an internal volume or large deposit inventory for fouling deposits to reside without impacting the unit operation.
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公开(公告)号：US20170247271A1
公开(公告)日：2017-08-31
申请号：US15328549
申请日：2015-07-31
Applicant: Dow Global Technologies LLC
Inventor： Paul A. Gillis , Jason S. Moore , Billy G. Smith , Michael D. Cloeter , Michael K. Poindexter , Carol E. Mohler , Wu Chen , Cole A. Witham , Justice Alaboson , Shankhadeep Das , Harpreet Singh
CPC classification number: C02F1/56 , B01F7/00141 , B01F7/00258 , B01F7/003 , B01F7/00341 , B01F7/0035 , B01F7/00633 , B01F7/0075 , B01F7/00908 , B01F7/22 , B01F2215/0052 , C02F11/127 , C02F11/14 , C02F11/16 , C02F2103/10 , C02F2103/365 , C02F2301/022 , C10G1/045 , C10G1/047
Abstract: The present invention relates to a method for flocculating and dewatering oil sands fine tailings. Said method comprises mixing the aqueous mineral suspension with a poly(ethylene oxide) (co)polymer to form a dough-like material. The material is then dynamically mixed in an in-line reactor to break down the dough-like material to form microflocs having an average size of 1 to 500 microns, and to release water. The internal diameter of the in-line reactor is at most five times the internal diameter of the inlet pipe of the reactor. The suspension of microflocs has a viscosity of at most 1000 cP and a yield stress of at most 300 Pa.
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Patent Agency Ranking
公开(公告)号：US10400564B2
公开(公告)日：2019-09-03
申请号：US15115293
申请日：2015-03-18
Applicant: Dow Global Technologies LLC
Inventor： Harpreet Singh , Naoko Akiya , Wu Chen , Paul A. Gillis , Abu Mokhtarul Hassan , Zubin B. Kuvadia , Biplab Mukherjee , Jorge H. Pazmino , Defne Kayrak Talay
Abstract: The present invention relates to an in situ staged steam extraction method for removing petroleum products from a heavy oil or bitumen reservoir from subterranean locations. Specifically, each injection stage comprises a different steam composition. A steam composition may consist essentially of steam or may comprise one or more enhanced oil recovery agent.
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公开(公告)号：US20180201528A1
公开(公告)日：2018-07-19
申请号：US15743774
申请日：2016-08-09
Applicant: Dow Global Technologies LLC
Inventor： Carol E. Mohler , Domonique Downing , Paul A. Gillis , Stephanie L. Hughes , Jason S. Moore , Michael K. Poindexter , Thomas L. Sanders , Harpreet Singh , Cole A. Witham
Abstract: The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene glycol and polyethylene oxide polymers, in particular a mixture of one or more low molecular mass polyethylene glycol with one or more high molecular mass polyethylene oxide. Said mixture of polyethylene glycol and polyethylene oxide polymers is 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.
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公开(公告)号：US20170197189A1
公开(公告)日：2017-07-13
申请号：US15472424
申请日：2017-03-29
Applicant: Dow Global Technologies LLC
Inventor： Paul A. Gillis , Joydeep Mukherjee , John B. Cooper , Arthur C. Flores , Daniel J. Reed
IPC: B01F5/04 , B01F3/08 , C07C263/10 , B01F5/06
CPC classification number: B01F5/0485 , B01F3/0865 , B01F5/0473 , B01F5/0602 , B01F5/061 , B01F5/0618 , B01F2005/0622 , B01F2005/0623 , B01F2005/0636 , B01F2005/0637 , B01F2005/0639 , B01F2215/0036 , C07C263/10
Abstract: Embodiments of the present invention relate to a mixing apparatus. Particularly, embodiments of the present invention provide a mixing apparatus for mixing fluid components such as phosgene and amine during a highly reactive chemical reaction. One embodiment provides a mixing conduit comprising a cylindrical sidewall defining an inner volume, wherein one or more jets are formed through the cylindrical sidewalls and connect to the inner volume and one or more flow obstructions disposed in the inner volume, wherein each flow obstruction is positioned upstream from an associated aperture.
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27.发明申请公开(公告)号：US20150078113A1
公开(公告)日：2015-03-19
申请号：US14394300
申请日：2013-04-29
Inventor： Paul A. Gillis , Thomas J. Parsons , Jia Xie , Vince Farozic
CPC classification number: B29B7/60 , B01F3/04453 , B01F7/00766 , B01F15/065 , B01F2015/061 , B29B7/40 , B29B7/402 , B29B7/7414
Abstract: Modified radial-flow rotor-stator mixers 10 comprise: A. A housing 13 comprising a first stator 16 and a second stator 17; B. A rotor 12 positioned between the first stator 16 and the second stator 17 so as to form a first chamber and a second chamber within the housing and to provide fluid communication between the first and second chambers, the rotor 12 connected to a rotatable shaft 11; C. A primary inlet 24 positioned within the first chamber at a low shear region; D. Two or more secondary inlets 30A, 30B positioned within the first chamber at one or more regions of higher shear than that of the primary inlet 24; and E. An outlet 26 positioned within the second chamber.
Abstract translation: 修改的径流式转子 - 定子混合器10包括：A.包括第一定子16和第二定子17的壳体13; B.一种定位在第一定子16和第二定子17之间的转子12，以在壳体内形成第一腔室和第二腔室，并且在第一和第二腔室之间提供流体连通，转子12连接到可旋转轴 11; C.在低剪切区域定位在第一室内的主入口24; D.在比第一入口24高的剪切的一个或多个区域处定位在第一室内的两个或更多个次级入口30A，30B; 和E.位于第二室内的出口26。
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公开(公告)号：US20150018575A1
公开(公告)日：2015-01-15
申请号：US14344345
申请日：2012-09-20
Applicant: Dow Global Technologies LLC
Inventor： Paul A. Gillis , Joydeep Mukherjee , Paulo Pereira
IPC: B01F5/04 , C07C263/10
CPC classification number: B01F5/04 , B01F5/0473 , B01F5/048 , B01F5/061 , B01F15/00831 , B01F2005/0623 , B01F2005/0639 , C07C263/10
Abstract: Embodiments of the present invention provide a mixing conduit (100) having at least a cylindrical inner surface or a cylindrical outer surface and increased number of jet openings (102). The mixing conduits according to embodiment of the present invention improve mixing rates thus reducing formation of undesired by-products without sacrificing structural integrity. Particularly, embodiments of the present invention provide a static mixer (150) having a substantially circular mixing conduit (100) with more than about 22 jet openings.
Abstract translation: 本发明的实施例提供一种具有至少圆柱形内表面或圆柱形外表面和增加数目的喷射孔（102）的混合管道（100）。 根据本发明的实施方案的混合管道提高混合速率，从而减少不期望的副产物的形成，而不牺牲结构完整性。 特别地，本发明的实施例提供一种静态混合器（150），其具有大于约22个喷射开口的基本圆形的混合管道（100）。
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