| 摘要 |
A method for recovering bitumen from tar-sands consisting of: a method for removing and disposing of the over-burden, a method to mine the tar-sands, a method to separate the bitumen from the tar-sands at the mine sight; A method for separating and disposing of the sand and fines tailings in a damp form by conveyer rather by slurry pipe line; a method to clarify the circulation water for continuous circulation in the extraction system: and discharge of the recovered bitumen to an up-grader for up-grading into an acceptable refinery feed stock.
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