• 介绍了国内外氯甲苯合成分离工艺

    The synthesis and separation processes of o-chlorotoluene are described.

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  • 采用溶剂间接方法合成对氯甲苯

    The indirect chlorination of getting PCT in solvent is applied.

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  • 介绍了以邻氯甲苯原料制备水杨酸工艺

    The article introduced a craft in which the salicylic acid was made from the Chloro-toluene as the raw material system.

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  • 研究溶剂结晶提纯26氯甲苯

    Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied.

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  • 研究采集空气邻-甲苯气相色谱分析方法

    GC analytical method for o-chlorotoluene in the workplace air using sampling by charcoal tube was studied.

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  • 氯甲苯激活钾离子通道数十年前用于治疗高血压

    Diazoxide is known to activate potassium channels and was used decades ago to treat high blood pressure.

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  • 分离混合、对氯甲苯氧化制得混合邻、对甲酸

    Chlorobenzoic acids can be synthesized by oxidation of mixed chlorotoluene which was difficult to separate.

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  • 间苯二水溶液氯甲苯反应可制备紫外线吸收UV—214。

    UV absorber, UV -214 can be prepared by reading resorcinol with benzotrichloride in water.

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  • 个月之后甲苯噻嗪小鼠在学习记忆能力方面都优于安慰剂组。

    After eight months, the diazoxide group outperformed the placebo group on both learning and memory.

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  • 指出高效、节能分子筛吸附分离法实现氯甲苯异构体分离最佳选择

    The best choice for separating the isomers of chlorotoluene is the adsorption separation by zeolite adsorbents in high efficiency.

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  • 一缩二乙二醇甲苯和对氯甲苯相对挥发度影响机理还需进一步探讨

    The mechanism of the effect of diethylene glycol on o -, p-benzol chloride system needs further investigating.

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  • 生产的间甲苯及其衍生产品国内产销量最大,产品远销东南亚国家地区。

    Its M-Chlorotoluene and its ramifications have a large sale in the domestic market and the such overseas markets as Europe, USA and Southeast Asia.

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  • 介绍了毛细管相色谱测定甲苯方法说明该法满足测定三氯甲苯要求

    The method of determining bezenyl trichloride by gas chromatography with Golay column is introduced. It is also explained that this G. C. detecting method can fulfil the test and measure requirements.

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  • 小鼠饮用水中加入氯甲苯噻嗪,持续个月另外一组小鼠水中加入安慰剂作为对照。

    One group was given diazoxide in drinking water for eight months; the other was given a placebo.

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  • 本文在研究甲苯混合氧化合成甲酸工艺时,采用氧气液相催化氧化反应压力为常压。

    The method of liquid oxygen oxidation of chlorotoluene mixture was choosen to synthesize chlorobenzoic acids, and the reactions were carried out under atmospheric pressure.

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  • 采用量子化学从头算CASSCFCASPT 2方法氯甲苯在低激发态上光解机理进行了理论研究。

    The photodissociation mechanism of o-chlorotoluene on the low-lying electronic states has been investigated with the use of the CASSCF and CASPT2 techniques.

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  • 采用定量准确测定混和氯甲苯氧化过程中的苯甲酸异构体含量回收率达92%以上,变异系数小于3.6%。

    The contents of chlorobenzoic acids isomers could been accurately quantified through internal standard, and the recovery was more than 92 percent, and RSD less than 3.6 percent.

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  • 本文报道以邻氯甲苯为原料,化、水解取代三步合成2-甲酰基苯磺酸钠的方法,并对影响反应收率因素进行了讨论。

    Sodium 2-formylbenzenesulfonate was prepared from 2-chlorotoluene by photo-chlorination, hydrolysis and substitution reactions successively. Factors affecting the yields were discussed.

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  • 通过几种合成方法比较得知,仿生催化氧化甲苯制备苯甲酸是一种比较有前途的方法。

    By the comparison of different synthesis methods, the method of oxidation of chlorotoluenes using metalloporphyrins as biomimetic-catalysis showed better prospect.

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  • 重点阐述了苯甲酸一系列合成方法,并简要介绍金属卟啉模拟酶仿生催化氧气氧化甲苯绿色合成苯甲酸方法

    And gave a brief introduction of a novel technology for green synthesis of chlorobenzoic acids by dioxygen oxidation of chlorotoluenes using metalloporphyrins as biomimetic-catalysis.

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  • 实验结果表明通过双塔精馏,可获得纯度大于96%62硝基甲苯目标产品。

    The results showed that the purity of 6 chloro 2 nitrotoluene was over 96% by two tower distillation.

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  • 采用纤维素过量乙烷氢氧化钠反应甲苯稀释剂,用一步法成功合成了乙基纤维素。

    Ethyl cellulose was synthesized successfully in one-step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

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  • 目的建立溴芬酸原料甲烷、甲苯1,2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法

    Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.

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  • 极性溶剂(丙酮)非极性溶剂(甲苯)三甲基硅烷介孔分子筛m CM - 41进行表面修饰

    The pure silica mesoporous molecular sieve (MCM-41) was modified on the surface by trimethylchlorosilane in polar solvent (acetone) and apolar solvent (toluene).

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  • 采用循环伏安研究不同电极上在1,2-二乙烷溶液甲苯胺的电子转移性质

    We have investigated the electron-transfer properties of o-toluidine in 1 , 2-dichloroethane in different electrode with cyclic voltammetry.

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  • 目的了解常见医院感染病原菌对对抗力

    Objectives To know the resistance of common nosocomial infection pathogens to P-chloro-m-xylenol(PCMX).

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  • 探讨了硬脂酰单宁酸量比催化剂甲苯磺酸的用量、反应温度溶剂对合成影响

    The main factors affecting the reaction such as ratio of reactants, the catalyst (p toluenesulfonic acid), temperature and solvent were discussed.

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  • 同时,还改进了甲苯甲苯酰甘氨酸合成方法

    The improved methods for the syntheses of tolylsulfonyl chloride and Np-tolysulfonyl amino acids have been described in this work.

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  • 介绍了乙烷溶剂制取五溴甲苯方法及其优缺点

    The preparation of pentabromotoluene was effected by utilizing dichloroethane and liquid bromine as reaction solvent, and their advantages and defects were pointed out.

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  • 介绍了乙烷溶剂制取五溴甲苯方法及其优缺点

    The preparation of pentabromotoluene was effected by utilizing dichloroethane and liquid bromine as reaction solvent, and their advantages and defects were pointed out.

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