Invention Grant
- Patent Title: Bitumen recovery process for oil sand
- Patent Title (中): 油砂沥青回收工艺
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Application No.: US11257790Application Date: 2005-10-25
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Publication No.: US07727384B2Publication Date: 2010-06-01
- Inventor: William L. Strand
- Applicant: William L. Strand
- Applicant Address: CA Calgary
- Assignee: Bitmin Resources, Inc.
- Current Assignee: Bitmin Resources, Inc.
- Current Assignee Address: CA Calgary
- Agency: Rodman & Rodman
- Agent Terrence N. Kuharchuk
- Priority: CA2524110 20051021
- Main IPC: C10G1/04
- IPC: C10G1/04

Abstract:
A bitumen recovery process is provided which includes the step of providing a bitumen froth or a component derived from the bitumen froth as a feed material, wherein the bitumen froth is produced in a primary separation process from a slurry comprising oil sand and water. Further, the process includes the step of subjecting the feed material to froth flotation in a column flotation cell in order to recover a bitumen product from the feed material. Preferably, the froth flotation cell includes an underwash zone, wherein a bitumen-rich fraction of the feed material is passed through the underwash zone as the bitumen-rich fraction rises within the column flotation cell.
Public/Granted literature
- US20070090025A1 Bitumen recovery process for oil sand Public/Granted day:2007-04-26
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