• 甲基苯甲酸甘醇为原料,酸四丁酯为催化剂合成了二乙二醇二间甲基苯甲酸酯。

    Diethylene glycol binary m-methyl benzoate was synthesized with diethylene glycol and m-methyl benzoic acid in the presence of tetrabutyl titanate.

    youdao

  • 工程实践证明采用级好氧法处理高浓度甲基苯甲酸生产废水种经济有效的处理方法。

    Engineering practice has proved that using the two-stage aerobic process for treating the wastewater from highly concentrated methyl-benzoic acid production is economical and effective.

    youdao

  • 阐述了精对苯二甲酸产品甲基苯甲酸产生分离原理分析了影响甲基苯甲酸含量主要因素

    The generation and separation principle of PT acid in PTA products is elaborated, and the main impact factors for PT acid content are also analyzed.

    youdao

  • 容积1反应釜,在剧烈搅拌消除条件下研究了邻甲基苯甲酸空气催化氧化制间甲酚的反应。

    The synthesis ofm—Cresol from o—toluic acid by air oxidation was studied in a 1 liter reactor under vigorous stirring conditions in order to eliminate film resistances.

    youdao

  • 通过由对甲基苯甲酸引发的苯乙烯原子转移自由基聚合ATRP)合成了分子量可控、分子量分布窄新型功能聚合物

    A novel type of functional polymer with designed structure, controlled molecular weight and low polydispersities can be prepared via ATRP (Atom Transfer Radical Polymerization).

    youdao

  • 它们乙酸苯甲醛、正葵14-甲基十五烷酸甲酯丙三醇苯甲酸69-十八碳二烯酸甲酯、角鲨烷硬脂二十烷基油酸

    They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.

    youdao

  • 二甲苯原料苯甲酸盐为催化剂进行液相氧化一步合成甲基甲腈。

    One step synthesis of o methyl benzonitrile with o xylene as raw material and benzene carbonate as catalyst was carried out in liquid phase oxygenation.

    youdao

  • 溴代环己烷苯甲酸乙酯原料经过反应合成了甲基丙烯酸二环己基苯甲酯。

    With bromocyclohexane and ethyl benzoate as raw materials, dicyclohexylphenylmethyl methacrylate was synthesized by two steps.

    youdao

  • 研究过氧化苯甲酸引发丙烯酸甲基丙烯酸聚丙烯非织造布主要影响因素

    Main factors affecting the graft modification of acrylic acid and methacrylic acid onto melt - blown polypropylene nonwovens initiated by benzoyl peroxide are studied.

    youdao

  • 过氧化氧化剂十六烷基甲基钨磷杂多酸铵为催化剂,催化氧化甲醛苯甲酸

    Phenyl carboxylic acid was produced by oxidation of phenyl formaldehyde using hydrogen peroxide as oxidizing agent and amine hexadecane trimethyl P-W heteropoly acid as catalyst.

    youdao

  • 提高反应温度增加催化剂浓度都能改变口-甲基苯乙烯聚过氧化物的稳定性,使其开裂最终转化苯甲酸

    The yield of benzoic acid could be improved by increasing operational temperature and catalyst dosage which could accelerate cleavage of polyperoxide to form benzoic acid.

    youdao

  • 研究以焦性没食子衍生物2,3,4-三羟基苯甲酸为原料经过甲基化、水解酸化精制成2,3,4-三甲氧基苯甲酸

    Preparation method of 2,3,4-trimethoxybenzoic acid is introduced, which was synthesized from 2,3,4-trihydroxybenzoic acid by methylation, hydrolysis, acidification and purification.

    youdao

  • 研究以焦性没食子衍生物2,3,4-三羟基苯甲酸为原料经过甲基化、水解酸化精制成2,3,4-三甲氧基苯甲酸

    Preparation method of 2,3,4-trimethoxybenzoic acid is introduced, which was synthesized from 2,3,4-trihydroxybenzoic acid by methylation, hydrolysis, acidification and purification.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定