查询词典 methanol

Methanol hydrochlorinate has two steps: one is to produce monochloro methane by methanol hydrochlorinate reaction and the other is to make monochloro methane produce polychlorinated methane.

二硫化碳法、氯油法和乙醛法因不经济和环保问题在国外已被淘汰；C1一C3废氯烃全氯化法是利用氯乙烯等装置的副产废料生产四氯化碳并联产四氯乙烯，该法是一种非常经济的工艺，在国外曾被十分广泛地采用，但随着发达国家四氯化碳的停止使用，目前大部分基于该工艺的装置被迫停产。

In order to improve the electrocatalytic activity of the anode in the Direct Methanol Feul Cell, three kinds of transition metal substituted phosphomolybdic acid modified platinum electrodes were prepared, and the electrochemical behavior in the sulphuric acid solution of transition metal substituted phosphomolybdic acid modified platinum electrodes and their electrocatalytic effects of methanol oxidation were studyed. The anti-poison effect to carbon monoxide of the prepared electrodes were studied by the carbon monoxide adsorbing.

为了提高直接甲醇燃料电池阳极催化活性，本文研究了三种过渡金属取代磷钼酸修饰铂电极在硫酸溶液中的电化学行为及对甲醇的电催化氧化作用，并利用一氧化碳吸附实验评价了三种过渡金属取代磷钼酸修饰铂电极的抗一氧化碳毒化性能。

To the reaction performed in protonic solvent, the catalytic activity decreased in the turn of methanol, ethanol and isopropanol, the highest TOF (933h〓) was achieved in methanol.

对于质子型溶剂醇中的反应，HCOOH的生成速率的顺序为甲醇＞乙醇＞异丙醇，在甲醇为溶剂中的反应，HCOOH的TOF值最高，为933h〓。

Methanol can pyrolyze and generate hydrogen when it is heated by the exhaust of diesel engine(temperature range between 400℃and 600℃). Then let the hydrogen generated from methanol go into cylinder with the air directly. By this means, we hopefully increase the rate of economizing oil of emulsified fuel in diesel engine.

利用柴油机排烟(温度一般在400～600℃)余热加热甲醇热分解制氢，并在线通入到柴油机进气道入口，有望实现柴油机燃用乳化油时节油率的提高。

The major material of this experiment is anthocyanins which was extracted from dried Hibiscus sabdariffa L. by the acidic methanol. We found that only 5% anthocyanins could be extracted by acidic methanol as well as the purity could reach 85 to 90%.

近年来，科学家在追寻抗氧化、抗衰老的过程中，发现在一些高等植物中所含之多酚化合物，具有抗氧化作用，藉由抗氧化的作用来抑制LDL的氧化修饰，是一种有效预防动脉粥状硬化发生的方法。

The effects of four different solutions (methanol, ethanol, chloroform, and tetrachloromethane) for the extraction of paeonol were investigated. With the consideration of toxicity, extraction ratio, and the influence on separation, methanol was selected as extractant.

考察了甲醇、乙醇、氯仿、四氯化碳4种溶剂提取丹皮酚的效果，综合考虑提取剂毒性、提取率和对分离的影响，选择甲醇作提取剂。

The activity coefficient of main composition (i.e., methanol) is around 1.The kinetics of transesterification of triolein with methanol catalyzed by K/KOH/γ-Al_2O_3 was studied under the optimized reaction conditions.

以K/KOH/γ-Al_2O_3作催化剂，在优化的反应条件下对三油酸甘油酯与甲醇的反应体系进行了动力学研究，建立了以表面反应为控制步骤的动力学模型。

Their half lives were 27.29 and 69.16 days respectively. Monocrotophos degraded into both methanol extractable and unextractable residues in the submerged soil.The analysis of 14C-methanol extractable. residue by TLC and ARG indicated that degraded products of monocrotophos were triether phosphate,;N-de-methyl Azodrin, O, O-dimethyl-vinyl-phosphatc,O-demethyl Azodrin,and O, C-demethyl Azodrin.The principal degraded extratable product of monocrotophos was triether phosphate, which incresed from 5% of the parent solution of monocrotophos to a range of 28-83%, furthermore and its degradation process was much faster in the unterilized soil than in the sterilized soil.

久效磷在淹水土壤中降解为甲醇可抽提态和不可抽提态残留物，对甲醇可抽提态残留物经TLC和红外光谱分析表明，其降解物为磷酸三酯、N-去甲基久效磷、O，O-二甲基乙烯基磷酸酯，0-去甲基久效磷，以及O，C-去甲基久效磷，但主要为磷酸三酯，其含量由母液中的5％增加到28—83％，这种降解过程，在未灭菌土壤中比在灭菌土壤中快。

After adsorbent was saturated by sulfur in adsorption, it can be regenerated with ultrasound, the optimum regeneration conditions are: methanol as regeneration agent, regeneration temperature 60℃ and LHSV of methanol 1.76h-1, methano dosage 100mL, amount of treated adsorbent 10g . Adsorbent was reused for three times, initial desulfurization efficiency is respectively 94.3%、94.3%、91.8%, the adsorbent has a good reappearance.

在超声波存在的条件下，以甲醇为再生剂，在再生温度为60℃、甲醇液态空速为1.76h-1、甲醇用量为100mL的实验条件下对10g动态吸附后饱和了的吸附剂进行再生，吸附剂经过三次再生后初始流出汽油的脱硫率分别达到94.3%、94.3%、91.8%，该吸附剂具有良好的再生性能。

Compared with the conventional catalyst, the complex catalyst improved methanol anodic oxidation activity by 46 percent. The reason that it deceases the activation energy for the methanol and its ramification electro-oxidation reaction was estimated to be its special complex Keggin structure.

测试表明该添加剂降低了甲醇及其电氧化中间产物转化的活化能，改善了电极内部的质子传输状况，对甲醇的电化学氧化过程具有明显的促进作用，该复合催化剂与常规的Pt-Ru/C催化剂相比，甲醇的阳极氧化电流提高了46%。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。