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以馏程１３０～４２８℃的直馏煤柴油馏分为原料，常压蒸馏得收率约７５％的－１０＃轻柴油，其余部分直接溶剂脱油，白土精制可制得５２＃精白蜡，研究了工艺条件对蜡收率及质量的影响。
Taking straight-run coal-diesel fraction of 130 ~ 428 ° C as raw material and -10% light-diesel oil with yield of about 75% at atmospheric distillation, the rest of the solvent is directly de-oiling and white spirit refined to 52 # Effect of process conditions on wax yield and quality.