甲苯

My company can provide pesticide, medicine, veterinary medicine intermediates, have 48 kinds of products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane Triethyl Citrate 1,2,3 - three Bromopropane 3 - Chlorine -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-C methyl 1,6 - dibromo-hexane 1 - bromo --4 - p-methoxy benzaldehyde o-bromo-acetic acid propyl bromide p-fluorotoluene dodecane four bromoethane of iodine bromide toluene tert-butane Tributyl Citrate 2 - bromo-p inter - Hydroxybenzaldehyde bromine butane 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide Cyclohexane Cyclopentane bran bromate bromide Malay Dibutyl Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) expressed the hope that customers contact us!

我公司可提供农药，医药，兽药中间体，有四十八种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1，2，3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)希望广大客户与我司联系！

The main products are: HH-01 fungicides HH-02 organic dispersant HH-03 cationic starch Wood HH-04 cationic starch Department HH-05 modified starch warp sizing agents also sell German Baker Chemical Co., Ltd. Main Products Defoamer series product: E640, T50 Surface Sizing Agent: A281, A288, K532, pesticides / medicine / veterinary medicine a variety of intermediate products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane triethyl citrate 1,2, 3 - Three Bromopropane 3 - chloro -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-methyl 1,6 C - Dibromo Hexane 1 - bromo -4 - nitrobenzene o-methoxy benzaldehyde acid propyl bromide p-fluorotoluene bromo dodecane toluene four of iodine bromide bromoethane three citric acid tert-butane n-butyl 2 - bromo-p-bromo-butane Hydroxybenzaldehyde between 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide bromide Cyclohexane Cyclopentane bran acid dibutyl maleate Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) and other relevant units have been in substantial promotion, and client set up a good relationship of cooperation has been the user's praise.

现主要产品：HH—01杀菌剂 HH—02有机分散剂HH—03阳离子淀粉 HH—04木署阳离子淀粉 HH—05 经纱上浆变性淀粉同时还代理销售德国贝克化学公司系列产品主要产品消泡剂：E640 、T50 表面施胶剂：A281、A288 、K532，农药/医药/兽药中间体多种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1，2，3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)等在相关单位得到了大量推广，与客户建立了良好的合作关系，得到了用户的赞誉。

So the process is offered using isomerization with separation. 1,2,4-trimethylbenzen is converted to 1,3,5-trimethylbenzen by isomerization. By means of precise distillation mesitylene is separated from products of isomerization as much as possible with high purity. 1,2,4-trimethylbenzen is recycled, at last , more mesitylene is produced and the productive cost is much lower .

为此，本文将催化异构化技术和精密精馏技术结合起来，通过异构化将偏三甲苯转化为均三甲苯，通过精密精馏技术将产物中均三甲苯最大限度的分离出来，得到很高的产品纯度，同时偏三甲苯循环使用，提高了均三甲苯的产量，降低了均三甲苯的生产成本。

The results showed that the fiber had the function of absorbing toluene and trichloroethylene after introducing HEMA into macromolecules, and the absorptive process obeyed Hill equation of sigmoidal model.Toluene and trichloroethylene absorbency increased with the increase of mass fraction of HEMA,and their maximum absorbency was 10 g/g and 21 g/g,respectively.The ratio of remaining fiber also increased with the increase of mass fraction of HEMA to make organic liquid retention ratio strengthen.Furthermore,dynamic mechanical performance of the fiber was affected by mass fraction of HEMA obviously, and the segments movement was influenced more obviously.At the same time,mass fraction of HEMA had a great impact on the surface and cross section morphologies,especially,many cavities existed in surface, and cross section had a lot of holes with asymmetric size when mass fraction of HEMA was equal to 15 wt%.

结果表明，HEMA引入大分子后，所得纤维对有机液体甲苯、三氯乙烯具有吸附功能，且吸附过程符合sigmoidal模型中的Hill方程；随HEMA质量分数的增加，纤维对甲苯和三氯乙烯的饱和吸附量增大，对甲苯和三氯乙烯的最大吸附量分别可达10 g/g和21 g/g；随HEMA质量分数的增加，纤维剩余率增加的同时，使纤维对甲苯和三氯乙烯的握持能力增强；HEMA质量分数对纤维动态力学性能有突出影响，特别是链段运动受其影响更为明显；HEMA质量分数对纤维表面和断面形貌均有显著影响，特别是当HEMA质量分数为15 wt%时，所得纤维表面出现了许多空洞，其断面存在许多尺寸不均的空洞。

A series of p-toluene sulfonylamido acetacylhydrazone derivatives were synthesized from p-toluenesulfonyl chloride which reacted with glycine to get the intermediate p-toluene sulfonylamido glycine, then through the esterification, hydrazinolysis to afford another intermediate p-toluene sulfonylamido acethydrazide, which condensed with different aldehydes to obtain the target compounds that were characterized by IR, 1H NMR, 13C NMR spectra and elemental analysis.

魏太保 ；冷艳丽；王永成；张建辉；张有明*摘要：以对甲苯磺酰氯为原料，通过与氨基乙酸反应得到中间体对甲苯磺酰氨基乙酸，再经酯化、肼解得到对甲苯磺酰氨基乙酰肼，然后与相应的醛缩合得一系列对甲苯磺酰胺基乙酰腙类化合物。其结构经元素分析， IR， 1H NMR和13C NMR确证。

From comparative research of synchronous and asynchronous reaction of dehydrogenation and cracking of dipentene,it is shown that farraginous extent of by-products from synchronous reaction is relatively high.

双戊烯脱氢裂解的同步反应和异步反应对比研究显示，双戊烯脱氢裂解的同步反应产物比较混杂，反应产物中甲苯的相对含量仅为24.03%，双戊烯相对于甲苯的料耗比为5.34，甲苯的得率为30.79%，中间产物对伞花烃的得率为2.49%；双戊烯脱氢裂解的异步反应产物混杂程度相对较低，反应产物中甲苯的相对含量为40.74%，对伞花烃的相对含量为18.31%，双戊烯相对于甲苯的料耗比为3.33，甲苯的得率为49.26%，中间产物对伞花烃的得率为16.92%。

Pseudocumene, mesitylene, 1,2,3-trimethylbenzene and durene among theheavy aromatic hydrocarbon from catalytic reformation in oil refinery areimportant fine chemical materials, they have not only high additional value butalso particularly useful property, therefore, the exploiting and utilizing the sourceof the heavy aromatic hydrocarbon are of large commercial benefit and promisingapplication future.

炼油厂催化重整装置重芳烃中偏三甲苯、均三甲苯、连三甲苯、均四甲苯等都是精细化工的重要原料，不仅附加价值高，而且具有独特的优良性能。因此开发利用重芳烃资源具有较大的经济价值和广泛的应用前景。

O-MNT、 p-MNT and m-MNT are got by mononitrating toluene, and the quantity of p-MNT and m-MNT that are needed is increased greatly, there is a great economic benefit to improve their ratioes , so the objective of this study is to improve the ratioes of p-MNT and m-MNT in the mononitration of toluene respectively through changing temperature and mixed acid composition in industrial way.

甲苯一硝化生成邻硝基甲苯、对硝基甲苯、间硝基甲苯，其中对硝基甲苯和间硝基甲苯的用量明显增加，提高它们在产物中比例的研究，具有十分可观的经济价值，所以本文从工业化的角度出发，通过改变温度和硝硫混酸的组成，分别对提高一硝基甲苯中对、间位异构体的比例进行研究。

In this paper, the chemical equilibrium constants of the reactions in the reaction system of toluene disproportionation and trimethylbenzene transalkylation reaction system were carefully calculated , and the equilibrium compositions of the components at different temperatures and different feed mole ratios were analysed .

对甲苯歧化与三甲苯烷基转移反应体系中反应的化学平衡常数进行了详细计算，并对不同温度、不同进料组成下的平衡组成进行了分析。结果表明，随温度升高，甲苯与三甲苯的芳烃平衡转化率降低，二甲苯的平衡组成亦降低；降低进料中甲苯和三甲苯的摩尔比，甲苯和三甲苯的总芳烃平衡转化率降低，而二甲苯的平衡组成明显上升。

The feedstock was changed from high purity meta- trimethylbenzene to meta- trimethylbenzene blended with 45%-55% mixed trimethylbenzene obtained from the top of the heavy component removal column; the original 3-column separation scheme was replaced by 2 columns; and modified the isomerization reaction system in compatible with the separation system for capacity enlarge.

金陵石化公司炼油厂针对异构化装置生产均三甲苯经济效益不明显的情况，改变了原料路线，在原以高纯度偏三甲苯为原料的基础上掺炼 4 5 %～ 5 5 %的脱重组分塔塔顶混合三甲苯；优化了均三甲苯分离流程，将原来的三塔流程改为两塔流程；进行了异构化反应系统与分离系统相匹配的扩容改造，收到了良好的效果，均三甲苯生产能力由 4 5 0t/a提高到 12 0 0t/a ，收率由 11%提高到 2 2 。0 %～ 2 4 。0 %，纯度由 97.9%提高到 98.9%。

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。