System and Integrated Method For Treatment of Tailings From Bitumen Extraction Process
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Mar 21, 2014
filing date -
Apr 22, 2013
priority date (Note) -
Abandoned
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Abstract
A system and method for treating tailings from a bitumen froth treatment process such as TSRU tailings. The tailings are dewatered to at least 50 wt percent solids content, and then combusted to convert kaolin in the tailings into metakaolin. Calcined fines and heavy minerals may be recovered from the combustion products, namely from the flue gas or bottom ash or both. A trafficable deposit may be formed from the ash when mixed with tailings, such as mature fine tailings (MFT).
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