| http://www.w3.org/ns/prov#value | - Dewaxing may be effected by mixing a dewaxing solvent, such as methyl ethyl ketone or methyl isobutyl ketone, optionally in the presence of a hydrocarbon such as toluene or xylene, with the charge oil and cooling the mixture below the desired pour point, typically to minus 5??? F.-minus 20??? F., say minus 10??? F., at which point wax precipitates.
|
