查询词典 distillation

Feed material flows from a degasser feed chamber to the still below, where distillation takes place, and then, to collection vessels directly beneath the still.

LAB-3的经验和参数直接用于大型号的蒸馏器设备。

The mechanical pump is a direct drive rotary vane vacuum pump. It is used as a forepump for the diffusion pump, and to rough pump the degasser, the distillation, the distillate and the residue chambers.

机械真空泵直接驱动，为扩散泵预先抽取真空，也为了脱气，蒸馏，残留物收集器和蒸馏物收集器的抽取真空工作。

Finally, the formaldehyde content of the raw material, semi-product and final beer was determined by the method of diacetyl distillation instrutment in this paper.

本文比较了甲醛测定的几种方法，例如乙酰丙酮法、AHMT法以及液相色谱法，最终采用AHMT法对啤酒生产的原料、半成品及成品啤酒中的甲醛含量进行了测定。

Synthesis of dibutyrate nylon acids from nylon acids and butanol by the reaction of direct esterification and distillation under reduced pressure, using solid acid as catalyst.

尼龙酸在固体酸催化下，与丁醇直接酯化、减压蒸馏制得合格的尼龙酸二丁酯。

The result of study on the apparent kinetics of photochlorination of acetic acid showed that the reaction rate is comparatively slow and the byproduct of dichloroacetic acid is created during the reaction. In order to put the technology of photochlorination of acetic acid into industrialization, the new technology about distillation column with a single reactor having a large reactive potency must be adapted.

由乙酸光氯化反应宏观动力学研究结果可见，反应速度相对较慢，且生成二氯乙酸副产品，为了乙酸光氯化工艺实现工业化，必须采用具有较大反应能力的反应与精馏耦合工艺。

The results showed that the wet distillation liquid from the roots of Dictamnus dasycarpus had contact toxicity and anti-feedant activity with 24h and 48h LC50 value of 6.48mg/L and 6.77mg/L,the 48h rate of death was 99.8%.

结果表明：白藓根的水蒸气蒸馏液对玉米蚜具有触杀和拒食作用，24h和48h的致死中浓度(LC50)分别为6.48mg/L 和6.77mg/L，48h的致死率达99.8%。

Studied bioactivity of the wet distillation liquid against Rhopalosiphum maidis from the roots,stems and leaves of Dictamnus dasycarpus Turcz.with uniform design.

利用均匀设计法研究了白藓根、茎和叶水蒸气蒸馏液对玉米蚜的生物活性。

Pure ethylamine, diethylamine and triethylamine were separated using six distillation towers.

乙基胺分离系统包括6个塔，精馏后得到纯的一乙胺、二乙胺、三乙胺产品。

The inventive method is characterized in that: c an amino nitrile or diamine or dinitrile or mixtures thereof are removed by distillation from bottom product at a temperature which is lower than that selected in step b.

本发明方法的特征在于：c在低于步骤b所选择的温度的温度下通过蒸馏从底部产物除去氨基腈或二胺或二腈或其混合物。

In order to carry out the separation of the azeotropic mixture dipropyl ether + 1-propyl alcohol by extractive distillation, we are studied the influence on the phase equilibria behavior four different solvent: 1-pentanol [2], butyl propionate [3], N,Ndimethylformamide [4] and 2-ethoxyethanol.

为了用萃取性蒸馏法分离二丙醚和1－丙醇组成的共沸混合物，我们正在研究4种不同溶剂对相平衡行为的影响：1-戊醇[2]、丙酸丁酯[3]、N，N－二甲基甲酰胺[4]和2-乙氧基乙醇。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。