This paper introduced a new type and special structured vacuum pump unit suitable for dry type reduced-pressure distillation. 本文介绍适用于干式减压蒸馏的特殊结构真空抽气设备。
Production Practice of Air-distillation and Reduced-pressure Distillation for Tar in Jigang Coking Plant DISCUSSION ON ANTI-CORROSION MEASURES FOR CRUDE OIL DISTILLATION UNTTS 济钢焦化厂焦油常、减压蒸馏生产实践常减压蒸馏装置设备防腐措施的探讨
Raising Citral Content of Litsea Cubeba Oil by Reduced-pressure Distillation 减压精馏山苍子油提高柠檬醛含量的研究