Search International and National Patent Collections

1. (WO2018080746) ONLINE ANALYSIS OF OIL SANDS TAILINGS CONTENT

Pub. No.:    WO/2018/080746    International Application No.:    PCT/US2017/055019
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 05 01:59:59 CEST 2017
IPC: G01N 33/28
C10G 1/04
Applicants: DOW GLOBAL TECHNOLOGIES LLC
Inventors: GILLIS, Paul A.
MOORE, Jason S.
POINDEXTER, Michael K.
TUBBS, Jason A.
Title: ONLINE ANALYSIS OF OIL SANDS TAILINGS CONTENT
Abstract:
The present invention relates to a method for determining the clay content of an oil sands tailings stream. The method comprises treating an oil sands tailings stream with a PEO flocculant, passing the mixture through a dynamic mixer comprising a mixer shaft and a power drive for rotating said shaft, wherein the power input needed to maintain a mixer rotational speed (RPM) is measured. For an oil sands tailings stream having a specified solids content, the power measurement and PEO dosage level is correlated to a clay content characterization index, for example methylene blue index (MB I), to determine in real-time the clay content during the processing of an oil sands tailings stream.