甲苯

After the clean version with ethyl mixtrue: such as: aminomethylbenzoic (8: 2), ethhyl: aminomethylbenzoic: ketone (7: 2: 1) in respect of problem-solving abilities, but here's a question is: If you use ethhyl, aminomethylbenzoic can be solved, it is best not butanone, because ketone residues of odoural a stronger, it may be on the cards and membership cards the quality of the production.

把版洗肮脏后用混分溶剂：如乙酯：甲苯（8：2）、乙酯：甲苯：丁酮（7：2：1）不离灵验不天处置题纲，但这里给夺纲的一个题纲是：如果用乙酯、甲苯能处置时，最坏务必丁酮，因为丁酮的残留气息较淡，不定差制卡和会员卡制息品的质度有感化。

To effectively enhance the contraposition selectivity of chlorinating reaction the p-chlorotoluene was prepared by direct chlorination of toluene and chlorine gas in the presence of zeolite catalyst.

为了有效提高甲苯氯化反应的对位选择性，研究了在分子筛催化作用下甲苯与氯气直接氯化制取对氯甲苯。

Based on that, toluene disproportionation over HZSM-5 catalysts under near critical and high temperature was comparatively studied.

用高压观测池通过可视观测确定了苯、甲苯和对二甲苯等二元系及三元系的临界性质以及甲苯歧化反应混合物临界性质随着反应进程的变化规律；在此基础上，分别研究了近临界区以及高温下以HZSM-5为催化剂的甲苯歧化反应。

In this paper the applications of mesitylene in dyestuff, medication and chemical industry etc. were summarized. From the literatures, we generalized the merit and defect of all kinds of methods and presented that the method of extraction rectification is effective and worth of research.

本文概述了均三甲苯在染料、医药、化工等令贞域中的应用；针对合成分离均三甲苯中存在的问题，查阅了大量的国内外文献，总结并分析了各种合成分离方法的优缺点，提出萃取精馏方法是生产均三甲苯的一种有效方法。

We determined the relation of the temperature and the content of mesitylene to search the optimium operating condition, which assured the content and the yield of mesitylene high. After pre-treated, the raw material contained only the composition of mesitylene, o-ethyl-methylbenzene and 1,2,4-trimethylbenzene.

本文采用间歇精馏法进行预处理；通过测定馏出温度与组成关系曲线，确定最佳操作条件，以保证均三甲苯的含量及收率较高；预处理后的原料主要含均三甲苯、邻甲乙苯及偏三甲苯。

The binary and ternary experimental equilibrium data of the composites of mesitylene,1-methyl-2-ethylbenzene and 1,2,4-trimethylbenzene and the infinite activity coefficients γ~∞ are measured in the solvent of DBP .

以邻苯二甲酸二丁酯为萃取精馏溶剂，测定了邻甲乙苯—均三甲苯—偏三甲苯体系的二元及三元汽液平衡数据；编程关联了W ilson模型参数；采用物料平衡三对角矩阵法对萃取精馏过程进行了模拟，得出了萃取精馏塔的最佳操作条件，为萃取精馏法生产均三甲苯提供了基础数据。

The capacity of tolyl arsonic acids for collecting cassiterite has been investigated.

本文介绍了用混合甲苯胂酸浮选锡石的研究工作，试验表明混合甲苯胂酸对锡石的捕收能力优于对位和邻位甲苯胂酸。

Our company is mainly engaged in chemical raw materials trading, the company mainly engaged in: toluene, xylene, mesitylene, durene, 6 # 120 # 200 # solvent, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, isophorone, MIBK, isopropyl alcohol, isobutyl alcohol, butanol, mixed alcohols, methanol, ethanol, ethylene glycol, diethylene glycol, diacetone alcohol, Anti-White Water, CAC, n-hexane, dichloromethane, trichloro-B, DMF, 5 # 10 # 15 # white mineral oil, lubricating oil, sewing machine oil, as well as high-pressure polyethylene, linear polyethylene, low-pressure polyethylene, polypropylene, rubber and other chemical raw materials.

我公司主要从事化工原料贸易，公司主要经营：甲苯、二甲苯、三甲苯、四甲苯、6# 120# 200#溶剂、醋酸乙酯、醋酸丁酯、丙酮、丁酮、环已酮、异佛尔酮、MIBK、异丙醇、异丁醇、正丁醇、混丙醇、甲醇、乙醇、乙二醇、二甘醇、二丙酮醇、防白水、CAC、正已烷、二氯甲烷、三氯乙、DMF、5# 10# 15#白矿油、润滑油、针车油以及高压聚乙烯、线性聚乙烯、低压聚乙烯、聚丙烯、橡胶等各种化工原料。

Mixed chlorotoluenes photo-chlorination experiments in a loop reactor were made, the effects of chlorine flow, temperature and p-/o- chlorotoluene initial ratio on mixed chlorotoluenes photo-chlorination were researched. The relations between the concentration of each component and time under different conditions were measured. The rule and the suitable process parameters of the photochlorination of p-chloromethyl benzene in the side chain were obtained.

本文在环流反应器中进行了邻、对氯甲苯混合光氯化反应试验，分别考察了不同氯气流量、不同氯化温度和不同对/邻氯甲苯初始配比对对、邻氯甲苯侧链光氯化反应的影响，实测了反应液中各组分浓度随时间的变化关系，得出了对、邻氯甲苯的侧链光氯化反应规律和适宜的工艺条件。

The polymeric resin NDA-8 was employed to treat the industrial wastewater from hydrogenated deoxidization process in tolylene diisocyanate production and good performance of adsorption and desorption was shown.

经树脂吸附处理，废水中主要污染物2，4-二氨基甲苯和2，6-二氨基甲苯均得到完全去除，COD由6 300mg/L降为150mg/L以下，达到国家二级排放标准，采用稀盐酸可实现树脂的完全再生，高浓度脱附液经调碱和结晶，可回收2，4-二氨基甲苯和2，6-二氨基甲苯

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。