Syncrude Canada Ltd.

Syncrude Canada Ltd. in Trust for the Owners of the Syncrude Project As Such Owners Exist Now and in the Future

Canadian Natural Resources Limited

James Lorentz

Jonathan Spence

Barry Bara

Warren Zubot

Yong (joe) Gu

Jun Long

Kevin Reid

Randy Mikula

Robert Siy

Yin Ming Samson Ng

Simon Yuan

Nan Wang

Shane Hoskins

Ron Siman

Eric Leneve

Yong Joe Gu

Robertino Hertanto

Adedeji Dunmola

Peter Read

A process for treating and dewatering tailings comprising fine clay minerals, fine rock-forming minerals and water is provided, comprising treating the tailings with a sufficient amount of a collector to modify the surface properties of both the fine clays and rock-forming minerals; subjecting the treated tailings to froth flotation to form a fine clays and rock-forming minerals froth layer; and recovering the froth layer and subjecting it to dewatering.

Collectors for treating tailings

A process for operating multiple oil sand mine sites for extracting bitumen from oil sand is disclosed, comprising preparing a first conditioned oil sand slurry at a first location using a first oil sand slurry preparation and slurry conditioning process; preparing a second conditioned oil sand slurry at a second location using a second oil sand slurry preparation and slurry conditioning process; combining the first conditioned oil sand slurry and the second conditioned oil sand slurry in at least one slurry distributor to produce a combined oil sand slurry; and distributing the combined oil sand slurry to at least one separation vessel to produce bitumen froth.

Bitumen production from single or multiple oil sand mines

A process of dewatering tailings is provided comprising mixing the tailings with a sufficient amount of an additive or a mixture thereof; depositing the resulting mixture into a disposal area; pumping water from the deposit to one or more sumps, and allowing the deposit to reach a sufficient strength; and removing remaining deposit water and rainfall through one or more of a network of ditches, a decant tower, or a plurality of dike drainage structures to yield a non-segregating deposit for reclamation.

Oil sands fluid fine tailings dewatering using rim ditching

Growing community of inventors

Fort McMurray, Canada

James Lorentz