Jason A Tubbs

US Patent:

20210371316, Dec 2, 2021

Filed:

Sep 14, 2017

Appl. No.:

16/319062

Inventors:

- Midland MI, US
Jason S. Moore - Walnut Creek CA, US
Michael K. Poindexter - Sugar Land TX, US
Jason A. Tubbs - West Columbia TX, US

International Classification:

C02F 11/147
B01D 21/01
B01D 21/26
C02F 11/127
C02F 11/16

Abstract:

The present invention relates to an in-line blending apparatus and use therein for flocculating and dewatering an aqueous mineral suspension. Said method comprises blending an aqueous mineral suspension and a poly(ethylene oxide) (co)polymer using a progressive cavity pump. 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.

US Patent:

20200318013, Oct 8, 2020

Filed:

Oct 12, 2018

Appl. No.:

16/753529

Inventors:

- Midland MI, US
Wu Chen - Lake Jackson TX, US
Paul A. Gillis - Lake Jackson TX, US
Michael K. Poindexter - Sugar Land TX, US
Jason A. Tubbs - West Columbia TX, US
Cole A. Witham - Pearland TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C10G 1/04
C10G 33/04
C02F 11/14
C02F 1/56
C08L 71/02

Abstract:

The present invention relates to a method for transporting, flocculating, and dewatering an aqueous tailings stream. Said method comprises adding a flocculant composition comprising a poly(ethylene oxide) (co)polymer with the aqueous tailings stream wherein the aqueous tailings stream has 15 wt % or less solids. 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.