公开(公告)号：US20170216791A1

公开(公告)日：2017-08-03

申请号：US15328552

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 ,  Irfan Khan

IPC: B01F7/00 ,  C02F1/56 ,  B01F7/18 ,  C02F11/14

CPC classification number: B01F7/00908 ,  B01F7/00258 ,  B01F7/003 ,  B01F7/00633 ,  B01F7/169 ,  B01F7/183 ,  C02F1/56 ,  C02F11/14 ,  C02F2103/10 ,  C02F2103/365 ,  C02F2301/02

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 40 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.

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

IPC: B01F7/00 ,  B01F7/18 ,  C02F11/14 ,  C02F1/56

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.

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

IPC: C02F1/56 ,  C02F11/16 ,  C10G1/04 ,  B01F7/22 ,  B01F7/00 ,  C02F11/14 ,  C02F11/12

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.

公开(公告)号：US20170056846A1

公开(公告)日：2017-03-02

申请号：US15308293

申请日：2015-05-08

Applicant: Dow Global Technologies LLC

Inventor： Zhao Yu ,  Michael D. Cloeter ,  Joy L. Mendoza ,  Philippe P. Maillot ,  Stacy W. Hoy, IV

IPC: B01F5/06

CPC classification number: B01F5/0688 ,  B01F5/0608

Abstract: A static mixer (10) for combining a first fluid and a second fluid. The static mixer (10) including a plurality of plates (18, 24, 32, 40) having orifices (20, 26, 28) formed therethrough. As the first fluid and the second fluid pass through the static mixer (10), the fluids are combined and mixed.

Abstract translation: 一种用于组合第一流体和第二流体的静态混合器（10）。 静态混合器（10）包括具有通过其形成的孔口（20,26,28）的多个板（18,24,32,40）。 当第一流体和第二流体通过静态混合器（10）时，流体被组合并混合。