• 蒸馏水加入磺化液中得到甲苯磺酸结晶

    The distilled water was added to the sulfonation liquid to obtain p-toluenesulfonic acid crystal.

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  • 甘氨酸甲苯磺酸

    Glycine benzyl ester p-toluenesulfonate salt;

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  • 同时简述了甲苯磺酸的精制分析方法

    The paths of purification and analytical approach are described.

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  • 制备了对甲苯磺酸首次用于电化学实验

    Copper p- toluenesulfonate was synthesized and has been applied to the electrochemical test for the first time.

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  • 本文报道了一合成多缩乙二醇双甲苯磺酸酯的方法

    A new method for the Synthesis of oligocthylencglycol ditosylates is reported.

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  • 催化剂选用甲苯磺酸用量反应物质量5~6%;

    The catalyst selects to the toluene sulfonic acid, the amount used for the reactant lumpy mass 5 ~ 6%;

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  • 探讨了以负载型对甲苯磺酸为催化剂合成乙二醇硬脂酸单酯的工艺。

    The synthesis of ethylene glycol mono stearate by supported p-toluene sulfonic acid was investigated.

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  • 研究对甲苯乙二醇制备单对甲苯磺酸乙二醇合成工艺。

    Toluene-4-sulfonic acid 2-hydroxy-ethyl ester was synthesised by p-toluenesulfonyl chloride with glycol.

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  • 研究氨基磺酸、氟硼酸甲苯磺酸催化作用探讨了其催化机理

    The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids, such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid.

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  • 针对某厂甲苯磺酸生产过程所存在问题,提出了相应技术改造方案。

    This paper is about the technology innovation in the commercial manufacture of sodium p-toluene sulfonic acid.

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  • 本研究采用乙酸乙酯溶剂甲苯磺酸为催化剂,提高了反应速度产物质量。

    The use of ethyl acetate as solvent and p-toluene sulfonic acid as a catalyst has increased the reaction rate and the product yield.

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  • 甲苯磺酸催化剂梯度升温法直接酯化合成没食子酸正(酯。

    Then (iso) butyl gallate was prepared by esterification of alcohol and gallic acid in catalysis ofp methyl benzene sulfonic acid and the reaction temperature was risen in a gradient style.

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  • 研究了实验室条件下硫酸、甲苯磺酸催化剂合成二甘醇二醋酸酯的方法。

    Diglycol diacetate had been obtained with sulfuric acid or toluene-p-sulfonic acid as catalyst in lab.

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  • 醇和乙酸为原料,甲苯磺酸催化剂甲苯为带水剂,合成三醋酸甘油酯。

    Glycerol triacetate was synthesized from glycerol and acetic acid using p -toluene sulphonic acid as catalyst and toluene as water-carrying agent.

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  • 草酸正丁醇原料,采用颗粒状活性炭固载对甲苯磺酸催化剂合成草酸酯。

    Dibutyl oxalate was synthesized with oxalic acid and n-butanol as raw materials and p-toluene sulphonic acid supported on granular active carbon as the catalyst.

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  • 以对甲苯磺酸催化剂,对二甲氨基苯甲酸异丁醇为原料合成对二甲氨基苯甲酸丁酯。

    Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.

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  • 探讨了硬脂酰氯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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  • 实验结果表明,对甲苯磺酸较好的催化活性,可使酯化反应时间大大缩短,收率明显提高。

    The experimental result shows that this catalyst has better catalytic activity and makes the period of esterification reaction much shorter and the yield much higher.

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  • 甲苯磺酸水解羧酸甲酯基和烃羧酸高碳醇酯双官能基硅油并和碱性水解的效果比较

    The modified silicone was hydrolysed by toluene-p-sulfonic acid, and the hydrolysis ratios in acid and base were compared.

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  • 现有甲苯磺酸生产工 艺生产出的产品含量超过97%,不能满足一些医药合成需要

    The main content of the existing product produced by a production process of paratoluenesulfonic acid does not exceed 97 percent and cannot meet the requirement of pharmaceutical synthesis.

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  • 利用正交设计研究丙烯酸十六原料甲苯磺酸催化剂采用微波加热法合成丙烯酸十六酯。

    The orthogonal design was utilized to study the hexadecyl acrylate synthesis by microwave irradiation using acrylic acid and hexadecyl alcohol as raw materials and toluene-p-sulfonic acid as catalyst.

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  • 采用分光光度法研究了对甲苯磺酸痕量组分测定方法,选择求导数、农导波长间距等最佳条件

    P-methylbenzensulforate trace components were determined by derivative spectrophotometer and optimum derivative order and wavelength intervals were selected.

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  • 结论硫酸盐制备酵母成品)达60%以上,硫酸、对甲苯磺酸得率可达50%以上。

    Conclusion Total yields of 60% and 50% could be reached for the preparations of SAM's sulfate salt and double salt of s…

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  • 本文研究甲苯磺酸催化剂氯苯为溶剂,室温附近的条件下,苯酚对叔丁基酚与甲反应动力学

    With p-toluene sulfonic acid used as catalyst and chlorobenzene as organic solvent, the reaction kinetics between phenol and acetal have been studied at room temperature.

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  • 以硫代二甘醇硬脂酸为原料,选用甲苯磺酸催化剂甲苯为带水剂合成新型抗氧剂硫代二甘醇二硬脂酸酯。

    A new antioxidant dithiodinglycol distearictate was synthesized starting from thiodiglycol and stearic acid using p-toluenesulfonic acid as catalyst and xylene as water carrier.

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  • 通过实验研究,用甲苯磺酸作催化剂呋喃树脂自硬与稀土镁作催化剂生产件,通常铸件表层出现异常组织

    The abnormal structure usually appears at the surface layer of nodular iron castings produced by furan-sulfonic acid cured sand mold.

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  • 开发了雷氏选择性沉淀分离SAM工艺使SAM硫酸盐在60%以上,硫酸甲苯磺酸盐得率在50%以上。

    Exploited the new craft to separate the SAM by the reinecke salt, making the recovery rate of the sulfate of SAM above 60% and the recovery rate ofp-toluenesulfonic acid salt above 50%.

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  • 研究了作为制备新型硝基原料中间体2-硝基-1,3-苯二酚(NB多甘醇双对甲苯磺酸酯(OEDT)的合成

    Synthesis of 2 nitro 1,3 benzenediol( NB) and oligoethyleneglycol ditosylate(OEDT) used as material for inner nitrocrown ether are studied.

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  • 研究分离菌株P4-1,能够降解甲苯磺酸盐,并且酵母粉情况下能明显提高其降解能力,在废水处理中有重要意义。

    In the methanogenic process, accompanied by the accumulation of propionic acid and butyric acid. (3) Strain P4-1 could degrade p-toluene sulfonate in the present of yeast.

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  • 研究分离菌株P4-1,能够降解甲苯磺酸盐,并且酵母粉情况下能明显提高其降解能力,在废水处理中有重要意义。

    In the methanogenic process, accompanied by the accumulation of propionic acid and butyric acid. (3) Strain P4-1 could degrade p-toluene sulfonate in the present of yeast.

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