将蒸馏水加入磺化液中,得到对甲苯磺酸结晶。
The distilled water was added to the sulfonation liquid to obtain p-toluenesulfonic acid crystal.
甘氨酸苄酯对甲苯磺酸盐;
同时简述了对甲苯磺酸的精制和分析方法。
The paths of purification and analytical approach are described.
制备了对甲苯磺酸铜并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.
本文报道了一种合成多缩乙二醇双对甲苯磺酸酯的新方法。
A new method for the Synthesis of oligocthylencglycol ditosylates is reported.
催化剂选用对甲苯磺酸,用量为反应物总质量的5~6%;
The catalyst selects to the toluene sulfonic acid, the amount used for the reactant lumpy mass 5 ~ 6%;
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.
研究对甲苯磺酰氯与乙二醇制备单对甲苯磺酸乙二醇酯的合成工艺。
Toluene-4-sulfonic acid 2-hydroxy-ethyl ester was synthesised by p-toluenesulfonyl chloride with glycol.
研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
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.
针对某厂对甲苯磺酸钠生产过程中所存在的问题,提出了相应的技术改造方案。
This paper is about the technology innovation in the commercial manufacture of sodium p-toluene sulfonic acid.
本研究采用乙酸乙酯为溶剂,对甲苯磺酸为催化剂,提高了反应速度和产物质量。
The use of ethyl acetate as solvent and p-toluene sulfonic acid as a catalyst has increased the reaction rate and the product yield.
对甲苯磺酸为催化剂,用梯度升温法,酸、醇直接酯化合成没食子酸正(异)丁酯。
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.
研究了在实验室条件下,以硫酸、对甲苯磺酸为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.
以丙三醇和乙酸为原料,用对甲苯磺酸作催化剂,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.
以草酸和正丁醇为原料,采用颗粒状活性炭固载对甲苯磺酸作催化剂合成草酸二丁酯。
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.
以对甲苯磺酸为催化剂,对二甲氨基苯甲酸和异丁醇为原料合成对二甲氨基苯甲酸异丁酯。
Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.
实验结果表明,对甲苯磺酸有较好的催化活性,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.
探讨了硬脂酰氯和单宁酸的量比、催化剂对甲苯磺酸的用量、反应温度和溶剂等对合成的影响。
The main factors affecting the reaction such as ratio of reactants, the catalyst (p toluenesulfonic acid), temperature and solvent were discussed.
用对甲苯磺酸酸式水解烃羧酸甲酯基和烃羧酸高碳醇酯基双官能基硅油,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.
现有的对甲苯磺酸的生产工 艺生产出的产品,主含量不超过97%,不能满足一些医药合成的需要。
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.
利用正交设计法研究由丙烯酸和十六醇为原料,对甲苯磺酸为催化剂,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.
采用导《分光光度法研究了对甲苯磺酸痕量组分的测定方法,并选择了求导阶数、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.
结论硫酸盐的制备得率(从酵母到成品)可达60%以上,而硫酸、对甲苯磺酸双盐的得率可达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…
本文研究了以对甲苯磺酸为催化剂,氯苯为溶剂,室温附近的条件下,苯酚及对叔丁基酚与甲缩醛反应的动力学。
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.
以硫代二甘醇和硬脂酸为原料,选用对甲苯磺酸为催化剂,二甲苯为带水剂,合成了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.
开发了雷氏盐选择性沉淀分离SAM的新工艺,使SAM的硫酸盐得率在60%以上,硫酸对甲苯磺酸盐得率在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%.
研究了作为制备新型内硝基冠醚原料的中间体2-硝基-1,3-苯二酚(NB)及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.
研究中分离的菌株P4-1,能够降解对甲苯磺酸盐,并且在有酵母粉的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.
本文报道了以邻氯甲苯为原料,经光氯化、水解、取代三步合成2-甲酰基苯磺酸钠的方法,并对影响反应收率的因素进行了讨论。
Sodium 2-formylbenzenesulfonate was prepared from 2-chlorotoluene by photo-chlorination, hydrolysis and substitution reactions successively. Factors affecting the yields were discussed.
本文报道了以邻氯甲苯为原料,经光氯化、水解、取代三步合成2-甲酰基苯磺酸钠的方法,并对影响反应收率的因素进行了讨论。
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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