β Scribed by Carlo Giavarini
No coin nor oath required. For personal study only.
A study was made of the behaviour, when heated in the presence of air, of visbreaker bitumens obtained at different cracking severities. During thermal treatment, two separate groups of reactions were detected by DSC; this behaviour is not a characteristic of distillation bitumens, and therefore allows a distinction to be made between them and cracker bitumens. In visbreaker bitumens, oxidation is expedited by an amount which is dependent on the conditions of the production process: the temperature at which oxidation starts is correlated to the severity of the visbreaking process.
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Amorphous Fe, \_,Ti, alloys with x = 0.2-0.75 have been investigated by differential scanning calorimetry, differential thermal analysis, X-ray diffraction and Mdssbauer effect measurements. The amorphous phase is thermally the most stable for x = 0.3-0.4, where we have the Laves phase, TiFe, (C14),
X-ray diffraction and Mbssbauer effect measurements were made for sputter-deposited Fe-Ag alloys after isochronal and isothermal annealings. Below 570 K, the metastable b.c.c. and f.c.c. single phases undergo a structural relaxation. Above 570K, these metastable phases decompose by ejecting supersat
## Abstract This study investigates the affinity of clay minerals in oil sands for the waterβcontinuous tailings and hydrocarbonβcontinuous froth streams produced from the extraction of bitumen from oil sands. Clay minerals in oil sands processing impact bitumen flotation in separation vessels, emu