Invention Grant
- Patent Title: Methods for extracting bitumen from bituminous material
- Patent Title (中): 从沥青材料中提取沥青的方法
-
Application No.: US12956701Application Date: 2010-11-30
-
Publication No.: US08877044B2Publication Date: 2014-11-04
- Inventor: Willem P. C. Duyvesteyn , Mahendra Joshi , Julian Kift , Dominic J. Zelnik , Whip C. Thompson , Cherish M. Hoffman
- Applicant: Willem P. C. Duyvesteyn , Mahendra Joshi , Julian Kift , Dominic J. Zelnik , Whip C. Thompson , Cherish M. Hoffman
- Applicant Address: CA Calgary Alberta
- Assignee: Shell Canada Energy Cheveron Canada Limited
- Current Assignee: Shell Canada Energy Cheveron Canada Limited
- Current Assignee Address: CA Calgary Alberta
- Main IPC: C10G1/00
- IPC: C10G1/00 ; C10G1/04

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.
Public/Granted literature
- US20110180459A1 METHODS FOR EXTRACTING BITUMEN FROM BITUMINOUS MATERIAL Public/Granted day:2011-07-28
Information query