| 摘要 |
A hot water extraction process for extracting bitumen from tar sands is taught using a conditioning agent containing sodium sesquicarbonate. The conditioning agent replaces the caustic soda agent previously used in tar sa nd extraction. The use of sodium sesquicarbonate substantially eliminates the production of sludge in tar sand extraction and maintains or improves bitume n recovery. The process allows for hot conditioning agent solution to be recycled to the process by use of a recycle storage tank.
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