采用正交实验,考察了原料投料比、回流反应时间、催化剂等因素对合成的影响。
The effects of feed composition, reflux reaction time and catalyst concentration on PPTD yield were investigated.
方法:以异丙醇或THF为溶剂,盐酸或硝酸为催化剂,香叶醇与苯亚磺酸钠回流反应18或28h得香叶基砜。
Methods: In the presence of hydrochloric acid or nitric acid, geranyl sulfone was prepared from geraniol in isopropyl alcohol or THF under reflux conditions for 18 h or 28 h, respectively.
现在国外货币交易市场对此的反应是,避险和海外资金回流已经迅速推高了日元对其它主要货币的汇率。
As we have seen in the price action in the foreign exchange market, risk aversion and repatriation flows has driven the Yen sharply higher against all of the major currencies.
改性反应是在有机溶剂中,通过回流分水使反应充分进行。
The modified reaction was completely finished by circumfluence to repel water in organic solvent.
考察了酸醇比、回流比、进料流量、进料位置等因素对反应过程的影响。
The effects of acid-alcohol ratio, reflux ratio, feeding flux, and feeding location on the process are investigated.
本文报告了以酒厂废料杂醇油为原料,在催化剂浓硫酸或阳离子交换树酯存在下,经加热回流与冰醋酸反应生成以乙酸异戊酯为主的混合酯。
It is reported that fusel oil can be used for synthesising mixing esters mainly inclusding amyl acetate when it is heated and back-flowed with Catalyst oil of vitriol or canon exchange resin.
反应是在装有分馏柱的反应器中进行的,分馏柱能让醛通过但使醇回流到反应器中。
Reaction is carried out under a fractionating column that allows aldehyde to pass but returns alcohol to the reaction vessel .
有很好的气密性可在负压下反应方便地组装成蒸馏回流装置。
With very good air-tightness, can conduct reaction under negative pressure and easily assemble distillation, reflow device.
用包含水解酸化、硝化和反硝化三个反应器的组合式生物脱氮除碳系统处理尼龙6废水,着重分析了该系统的回流比,溶解氧。
A combined system consisting of hydrolysis acidification, denitrification and nitrification reactors was used to removal carbon and nitrogen from the nylon-6 production wastewater.
对乙酸与乙醇酯化反应体系,考察了催化剂用量、酸醇比、进料位置、回流比、回流组成等因素对过程的影响。
The effects of catalyst quantity, acetic alcohol mole ratio, acetic acid and ethyl alcohol feed site, reflux ratio and reflux composition on the process are investigated.
文章还介绍了MIC反应器的有效调试对厌氧去除效果的影响和污泥回流对培养颗粒污泥的作用。
This article also points out that the method of the reactor of MIC to debug effectively has an important effect. The inverse sludge has a vital function to foster granular sludge.
对醋酸与正丁醇酯化反应体系,考察了催化剂用量、醇酸比、进料流量、进料位置、回流位置等因素对过程的影响。
The catalyst quantity, alcohol-acetic mole ratio, feed rate and reflux feed site effects on the process are investigated.
研究了一种新型消化气回流厌氧流化反应器,并对其处理啤酒废水的效率、耐冲击负荷等特点进行了研究。
The novel AFBR which used reflux bio-gas to keep the wastewater fluidized has been investigated; and the efficiency of the reactor on beer production wastewater treatment.
反应速率和转化率均明显高于传统回流方法,密闭条件下微波辐射反应速率和转化率大于常压条件。
The reaction rate as well as the conversion rate was improved obviously compared with conventional reflux meth- od.
改性反应是在有机分散剂中进行,并通过回流分水使反应充分。
The reaction was driven to completion by azeotropic distillation of water using a carrier solvent.
反应过程中生成的气体通过冷凝回流装置不断地从反应体系中分离溢出。
During the reaction, the evolved gases were constantly separated through condenser from the system and collected in the 400ml measuring cylinder.
OCO是一种新型的生化反应器,具有较强的脱氮除磷功能,可实现硝态液的自动回流,节约能耗。
OCO is a kind of new biochemical process. It has the function of nitrogen and phosphorus removals and realizes the automatic returns of nitric liquid, so it is economical of energy.
用4-氨基安替比林比色法和紫外分光光度法对提取物的分析结果表明,DMPT在聚合反应或回流提取过程中已发生某种结构上的变化。
The results obtained by 4-aminoantipyrine colorimetric and U V spectrometric analysis show that the some change of the structure of DMPT occurred during the process o…
用4-氨基安替比林比色法和紫外分光光度法对提取物的分析结果表明,DMPT在聚合反应或回流提取过程中已发生某种结构上的变化。
The results obtained by 4-aminoantipyrine colorimetric and U V spectrometric analysis show that the some change of the structure of DMPT occurred during the process o…
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