distillation under pressure
英 [dɪstɪˈleɪʃn ˈʌndə(r) ˈpreʃə(r)]
美 [dɪstɪˈleɪʃn ˈʌndər ˈpreʃər]
加压蒸馏
双语例句
- Do your distillation under high pressure or low pressure.
在高压或低压下进行提纯。 - Veratryl alcohol was synthesized through the reduction of sodium borohydride from veratraldehyde with isopropanol as solvent, followed by solvent extraction and distillation under reduced pressure.
以藜芦醛为主要原料、异丙醇为溶剂，经硼氢化钠还原、溶剂萃取、减压精馏得到产物藜芦醇。 - The result shows that the elementary sulfur with the purity of above 98% can be produced by distillation process under normal pressure. The sulfur in distillation residue can be decreased to 24.48%, which is in the form of compounds.
结果表明采用常压蒸馏的方法能较好地脱除硫磺渣中的元素硫并得到硫磺，硫磺纯度达98%以上，试验残渣含硫可降为24.48%，为化合态的硫。 - Using two methods of steam distillation under reduced pressure ( SDRP) and simultaneous distillation and extraction ( SDE), the aroma concentrates from Oolong tea were prepared, respectively, and then were objected to GC-MS analysis.
采用减压水蒸汽蒸馏法（SDRP）和常压水蒸汽蒸馏并同时萃取法（SDE）提取乌龙茶中的香气成分，并用GC-MS进行分析比较。 - The product was purified by distillation under reduced pressure, the residue remained after distillation could be used as catalyst in circulation. The yield of title compound was 91.6% and content of 1-benzyl-2-pyrrolidone was 99.3%.
产物经减压蒸馏分离提纯，蒸馏后的残余物作催化剂循环使用，1-苄基-2-吡咯烷酮收率为91.6%，含量99.3%； - Grey Relational Analysis between Dry Point of Gasoline and Operation Parameter of Distillation under Ordinary Pressure of Distillation under Ordinary Pressure
汽油干点与常压蒸馏操作参数的灰色关联分析 - Meanwhile, the recycle of the excessive formic acid in the synthesis of trans-1,2-cyclohexanediol was studied and the recycle technique of formic acid by batch distillation under common pressure was got.
同时还对反式-1，2-环己二醇合成工艺中过量甲酸的回收进行了研究，得到了常压间歇精馏浓缩回收甲酸的工艺条件。 - The technological researches for recover elementary sulfur by distillation under normal pressure from sulfur residue after highpressure acid leaching of sulfide zinc concentrate has been carried out and the influential factors for distillation were analyzed.
对硫化锌精矿高压酸浸后的硫磺渣进行常压蒸馏提取元素硫的工艺研究，分析影响蒸馏过程的因素。 - Thus, only binary vapor-liquid equilibrium data are needed for the model to perform the calculation of vapor-liquid equilibrium and distillation of multi-components associate system under atmospheric and medium pressure.
这样，该模型只需用有关二元汽液平衡数据，就能进行常压及中压下多元缔合物系的汽液相平衡及精馏计算，具有一定的工业实用价值。 - Extraction of Element Sulfur from Sulfur Residue with Distillation under Normal Pressure
常压蒸馏提取硫磺渣中的元素硫 - This paper focuses on the study of technological conditions, kinetics and possible reaction mechanism of synthesis of methyl phenyl carbonate by transterification between dimethyl carbonate and phenol through reactive distillation under pressure.
本文研究了苯酚与碳酸二甲酯酯交换反应，分别探讨了加压反应精馏合成碳酸苯甲酯的工艺条件，反应动力学、可能的反应机理，以及碳酸苯甲酯的歧化反应。 - When the amount of TNT is same, the coating effect was better and the friction sensitivity was lower, which was prepared by the solution suspension than solvent evaporation. Secondly, GAP was selected to coat AP by distillation under reduced pressure method.
TNT用量相同时，溶液悬浮法的样品比溶剂蒸发法具有更加致密的包覆效果，其摩擦感度较低。其次，采用减压蒸馏法，用包覆剂GAP对超细AP进行表面包覆。