December 2007, W:Daily News Tribune - Golden Globes nominations a head-scratcher
The deasphalter unit is usually placed after the vacuum distillation tower, where, by the use of a low-boiling liquid hydrocarbon solvent, such as propane or butane under pressure, the insoluble asphalt-like product (deasphalter bottoms) is .separated from the feedstock.
It is interesting that the vibratum ensem to which Merlin refers in his warning (1. 380) is in practice cornua cervo (1. 467), rather appropriate to his silvestral life;
vibratum ensem
cornua cervo
The mixture of sulphuric acid and water produces heat.
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