Pressure distillation used in acetaldehyde production can save energy markedly.

将加压蒸馏技术应用于乙醛生产,节能效果显著.

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To obtain from a substance by chemical or mechanical action, as by pressure , distillation, or evaporation.

榨出,提取,蒸馏:通过化学作用或机械作用从某物质中获得, 如通过压榨 、 蒸馏或蒸发.

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The production reduced pressure distillation was analysed with IR, GC and studied by physical chemistry property.

通过正交试验得出其最佳条件,并对产物作了IR, GC分析和理化性能检验.

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The process flow and production practice of - distillationreduced - pressure distillation for tar in Jigang coking plant are introduced.

介绍了济钢焦化厂焦油常、 减压蒸馏 的工艺流程、生产实践.

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The restriction for the use of the said packing for pressure distillation is also discussed.

还讨论了高压精馏应用此种填料的限制.

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After removing the solvent by reduced pressure distillation, the oil is obtained finally.

本文使用分散机匀浆, 利用溶剂提取油料中的油脂,再经减压旋蒸除掉溶剂,得到油脂.

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