I optionally prefer to remove the fat and oil impurities from the crude sisal wax, before removing the resin impurities.
The partially purified sisal wax is separated from the selective solvent by filtration, centrifuging setting, or any suitable method.
Removing resin impurities from the crude sisal wax, after removing fat and oil impurities
The sisal wax is soluble in hot alcohols, such as methanol, ethanol, isopropanol, other suitable monohydric alcohols and solvents, in which the resin impurity is insoluble.