On bitumen liberation from oil sands
β Scribed by S. Basu; K. Nandakumar; Jacob H. Masliyah
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 606 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0008-4034
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## Abstract Important process development aspects leading to more efficient bitumen recovery from diluentβconditioned oil sands by waterβbased methods are discussed. Bitumen viscosity of 0.5β2 PaΒ·s is required at the processing temperature and can be reduced to this level by bitumen dilution with a
Centrifugation was shown to have certain advantages over solvent extraction for the separation of bitumen from oil sand for research purposes. No fractionation of the bitumen during centrifugation was detected by chemical analysis. Some limitations of the method are pointed out.
Letters to the Editor o.66 0 100 200 300 LOO 500 Time lh) Figure2 Variation of C,f/C,, with duration of oxidation (105Β°C. in air) C,, as a function of time of oxidation at 105". This shows that the aromatic structures in the coal are being modified more than the aliphatic structures during the oxida