| 摘要 |
A process wherein a light waxy petroleum distillate stock, having a viscosity less than about 200 SUS at 100 DEG F, is heated for melting any wax therein, wherein said heated waxy stock is incrementally mixed with a flowing stream of dewaxing solvent, having a temperature in the range of 40 DEG -80 DEG F, for forming an oil/solvent mixture at a temperature 5 DEG -10 DEG F below the depressed cloud point, and wherein the oil/solvent mixture is cooled at a uniform rate in the range of 1 DEG -8 DEG F/min. to a separation temperature in the range of +25 DEG to -40 DEG F for precipitating wax from said mixture.
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