The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
Nov. 30, 2010
Willem P. C. Duyvesteyn, Reno, NV (US);
Mahendra Joshi, Katy, TX (US);
Julian Kift, Reno, NV (US);
Dominic J. Zelnik, Sparks, NV (US);
Whip C. Thompson, Reno, NV (US);
Cherish M. Hoffman, Reno, NV (US);
Willem P. C. Duyvesteyn, Reno, NV (US);
Mahendra Joshi, Katy, TX (US);
Julian Kift, Reno, NV (US);
Dominic J. Zelnik, Sparks, NV (US);
Whip C. Thompson, Reno, NV (US);
Cherish M. Hoffman, Reno, NV (US);
Shell Canada Energy Cheveron Canada Limited, Calgary Alberta, CA;
Abstract
Methods for preparing solvent-dry, stackable tailings. The method can include the steps of adding a first quantity of first solvent to a bitumen material to form a first mixture, separating a first quantity of bitumen-enriched solvent from the first mixture and thereby creating first solvent-wet tailings, adding a quantity of second solvent to first solvent-wet tailings to separate a first quantity of first solvent component from the first solvent-wet tailings and thereby producing second solvent-wet tailings, and adding a quantity of water to the second solvent-wet tailings to separate a first quantity of second solvent component from the second solvent-wet tailings and thereby forming solvent-dry, stackable tailings.