Brian H Pittenger

US Patent:

D451149, Feb 2, 1999

Filed:

Jun 1, 1998

Appl. No.:

D/088770

Inventors:

Roderick J. Hossfeld - Concord MA
Brian H. Pittenger - Groton MA
Donald A. Ploof - Groton MA

Assignee:

Jenike & Johanson, Inc. - Westford MA

International Classification:

1907

US Classification:

D19 62

US Patent:

20230037003, Feb 2, 2023

Filed:

Jul 20, 2022

Appl. No.:

17/869327

Inventors:

- Calgary, CA
Tracy HOLMES - Mississauga, CA
Brian PITTENGER - Tyngsboro MA, US
Shawn VAN DER MERWE - Calgary, CA

International Classification:

B03B 9/02
C10G 1/04
B01D 11/02

Abstract:

Processes for conditioning a dry tailings material from a non-aqueous extraction (NAE) process for extracting bitumen from oil sands ore are described. The process can include contacting a main stream of the dry tailings material with a re-wetted tailings seed stream to produce a combined tailings material, and subjecting the combined tailings material to re-wetting to produce a re-wetted tailings material. The re-wetting can include adding a wetting agent to the combined tailings material, and imparting mixing to the combined tailings material. Contacting the main stream of the dry tailings material with the re-wetted tailings seed stream can include recycling a portion of the re-wetted tailings material to the main stream of the dry tailings material as the re-wetted tailings seed stream to produce the combined tailings material, or subjecting a sub-stream of the dry tailings material to sub-stream re-wetting to produce the re-wetted tailings seed stream.

Address:

412 Riv St, Dunstable, MA 01827

Phone:

9787480026

VIN:

WBAVT73547FZ35300

Make:

BMW

Model:

3 SERIES

Year:

2007