Paraffin turn
Slack wax - a mixture of solids having more than 15 carbon atoms in the molecule, paraffins, containing from 10% to 30% of oils, extracted from heavy naphtha (boiling above 350 ° C) and residues therefrom. distillation.
Jacz is produced in the process of producing base oil. The solvent extraction material is deprived of the aromatic compounds and the remaining mass is dissolved again (for example in butanone) to lower the viscosity (to allow for low temperature filtration). The diluted oil is then cooled to a temperature of -10 ° C to -20 ° C, thereby crystallizing the paraffin which is filtered off. Different types of refiner can vary greatly in color, oil content and melting point.
The next step in the conversion of the slack is the refining which results in a water-insoluble and ethanol-free paraffin, pale yellow to white, depending on the degree of purification, in the form of crystalline wax. In addition to the production of paraffin, the traditional applications of slack are impregnation (moisture impregnation) of particleboards and matches and the production of anti-corrosion and dampproof preparations. Sloppers with an oil content of less than 10% are used for religious candles.
Yet at the beginning of the 21st century, duck was treated as a low value raw material, but its use increased - especially the refining industry cumulatively transforms it into base oils. It is also a raw material for the production of low sulfur fuels, which has increased its price in the last decade by about 300%.
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