THE APPLICATION OF DEWAXING AIDS IN THE SOLVENT DEWAXING PROCESS
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The dewaxing tests were carried out by adding dewaxing aids in solvent dewaxing process in order to investigate the influences of different dewaxing aids in the same or different feedstocks, the same dewaxing aid in the different feedstocks, and the dosage of dewaxing aid on the dewaxing effect.The test results showed:(1)Using the suitable aid can increase the filtering rate effectively and the yield of dewaxing oil,decrease the oil content of slack wax and improve the quality of slack wax,without influence on the quality of dewaxing oil.(2)Not all aids are applicable for the same feedstock,even the counteraction will appear; and the effects of same aid in different feedstocks are different.The optimum concentrations of different aids in different feedstocks are also different.