benzene

The separation of acetone, ethanol, benzene, chloroform, toluene was performed on a 10 % PEG-20 M Chromosorb-W-AW-DMCS column.

对样品中残留丙酮 、 乙醇 、 苯 、 氯仿 、 甲苯的分离选用10%PEG-20Mchromosorb -W-AW-DMCS 公谱柱.

互联网摘选

Crude benzene is byproduct in the production of coke.

粗苯是焦炭生产的副产品.

互联网摘选

The intrinsic viscosities reported were determined in benzene at 25 ℃.

特性粘数是在苯中于25℃测定的.

互联网摘选

Ferric Chloride alone gives polymer with benzene.

三氧化铁可单独催化苯的聚合.

词典精选例句

This paper introduces the process of absorbing benzene from coal gas by tar wash oil in coking plants. The main cause of low yield of the crude benzene is that the distillation range of the recycled wash oil is too low before 270 ° C.

介绍了焦化厂焦油洗油吸收煤气中苯的工艺流程，分析了造成粗苯产量低的主要原因是循环洗油270℃前馏程偏低。

互联网摘选

Hydrogenation of Pt/ SAPO-11 isomerization catalyst and effect of benzene on n-tetradecane hydroisomerization were investigated using benzene hydrogenation as a model reaction in a 10 mL fixed-bed down-flow reactor system.

在10mL连续流动固定床反应装置上，以苯的转化为模型反应考察了Pt／SAPO-11异构化催化剂的加氢性能及苯对正十四烷异构化反应的影响。

互联网摘选

Numerous constituents are toxins such as ammonia, benzene, and nicotine.

其中许多都是有害物质,如氨, 苯和尼古丁.

互联网摘选

The application of catalytic distillation reactor in benzene alkylation process is presented.

同时介绍了催化蒸馏反应器在苯烷基化工艺中的应用.

互联网摘选

Civil development situation of butyl-benzene rubber and butyl-benzene emulsion is introduced, and some advices are suggested.

概述了 丁苯橡胶 和丁苯胶乳国内发展概况, 并据此提出几点建议.

互联网摘选

In the range of room temperature ( about 20~ 30), 100% propylene conversion and 87% selectivity of isopropyl benzene was obtained when the ratio of benzene to propylene was 8:1 in weight and the amount of catalyst was 1/ 3 weight of benzene;

在室温范围内（20～30℃），当苯与丙烯质量比为8：1，离子液体催化剂的用量占苯质量的1／3时，可获得100%的丙烯转化率和87%的异丙苯选择性；

互联网摘选

Methods of qualitative and quantitative analysis for benzene, toluene, ethyl benzene, dimethyl benzene in blood and urine.

血、尿中的苯 、 甲苯 、 乙苯 、 二甲苯的定性及定量分析方法.

互联网摘选

The standard method with atmospheric pressure correction for distillation test of coking benzene products is studied. The distillation range of coking benzene products is defined.

研究了焦化苯类产品蒸馏试验的气压补正标准方法，对焦化苯类产品的馏程范围进行了定义。

互联网摘选

This can supply fundamental data for the industrial simulation of benzene alkylation.

可以为苯烷基化反应的工业模拟提供重要的基础数据.

互联网摘选

The benzene vaporized and formed a huge cloud of gas.

苯蒸发了，形成了一大团气体。

词典精选例句

Through survey and drawing of the ultraviolet absorption spectrum of benzene, Chlorobenzene and benzene amine aniline solution in absolute ethyl alcohol, this article discusses the influence of auxochrome on benzene and the ultraviolet spectrum of its derivatives.

实验通过对苯、氯苯、苯胺溶液在以无水乙醇为溶剂中的紫外吸收光谱的测绘，探讨了助色基团对苯及其衍生物的紫外光谱的影响。

互联网摘选

There are two method to measure the weight ratio of crude benzene.

测定粗苯重量比,有色谱法和蒸馏法两种方法,其中蒸馏法为仲裁方法.

互联网摘选

In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.

在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大.

词典精选例句

The dispersant are alcohol, ether, alcohol-benzene component solvent or non-proton polar solvent.

分散剂为醇 、 醚 、 醇 - 苯混合溶剂或 非 质子极性溶剂.

互联网摘选

Aicohol mutipurpose glycollic hexanl mutipurpose benzene , toluene and xylene.

醇类众用乙醇、异丙醇,苯类众用甲苯、二甲苯.

互联网摘选

Environmental catalytic material of iron nitride nanoparticle was synthesized by Benzene-thermal method.

采用苯热法合成环境催化材料纳米氮化铁.

互联网摘选

During the acetylation of ( 3-bromopropyl) benzene the products of the halogen exchange are observed, a reasonable explanation for the phenomenon is proposed and the disposal of the acetylation of ( 3-bromopropyl) benzene is studied at the same time.

对3-溴丙基苯的付克酰基化反应进行了研究，发现了卤素交换的现象，并对此做了合理的解释，同时对该反应的后处理进行了研究。

互联网摘选

Alkylation of benzene with propylene to isopropyl benzene with ionic liquid as catalyst

一种用于苯-丙烯烷基化反应制异丙苯的离子液体催化剂

互联网摘选

Experimental results show that the degradation of benzene and formaldehyde in the experiment did not produce other organic gases, and can be seen from the chromatogram of benzene and formaldehyde removal efficiency can reach 85%.

实验结果表明，降解甲醛和苯的的净化效率均可达到85%以上，并且从气象色谱图中可以得出试验过程中没有产生其他有机气体。

互联网摘选

The benzene ring is also seen in other compounds.

苯环在其他化合物中也可以看见.

词典精选例句

Simultaneous Determination of Benzene and Methyl Benzene by Artificial Neural Networks Ultraviolet Spectrophotometry

人工神经网络紫外分光光度法同时测定苯和甲苯

互联网摘选

Effect of External Electric Field in Electron Transfer An Ab Initio Calculation for Electron Transfer Between Benzene and Benzene Cation Radical

电子转移的外电场效应&苯分子与苯正离子自由基间电子转移的从头算研究

互联网摘选

Resonance theory says that benzene can be represented by two contributors.

共振论认为苯能用两个参与体表示.

词典精选例句

Approach has been made on separating conditions of benzene, methyl benzene ethy benzene, o-xylene, m-xylene and p-xylene isomeride through gas chromatography of packed column thermal conductivity cell.

采用填充柱热导池气相色谱法，对苯、甲苯、乙苯及邻、间、对二甲苯异构体的分离条件进行探讨。

互联网摘选

, and the pyrolytic products of WPS were benzene, methyl benzene, styrene and ethyl benzene which were identified by GC. Methylbenzene was used as the internal stand.

通过气相色谱分析可知，裂解产物为苯、甲苯、苯乙烯和乙苯。

互联网摘选

A study on the alkylation of benzene with ethanol to ethyl benzene

苯与乙醇烷基化制乙苯的研究

互联网摘选