• This standard solution was accurately prepared in super-clean laboratory with o-xylene and sub-packed in 2ml ampoules.

    标准溶液以纯邻二甲苯实验室准确配制分装于2毫升安瓿中。

    www.gbw114.org

  • A new method related to the carbonylating synthesis of 3,5-dimethylbenzaldehyde was studied using o-xylene and CO as the raw materials and anhydrous AlCl3 as the catalyst.

    采用邻二甲苯一氧化碳原料无水三氯化铝为催化剂,对3,5-甲基苯甲醛羰基化合成反应进行了研究。

    www.dictall.com

  • A series of supported copper, cobalt and copper-cobalt composite catalysts were synthesized by solid state reaction, and used for the deep catalytic oxidation of o-xylene.

    采用低温相法制备了系列负载以及铜钴复合催化剂用于二甲苯深度催化氧化,以邻二甲苯分解率二氧化碳产率综合评价催化剂的活性。

    www.dictall.com

  • For isomerization of o-xylene the improvement in para-selectivity has not been observed, because the reaction is not mainly controlled by the diffusion of the reaction products.

    但对邻二甲苯异构反应由于反应不是单纯由反应产物扩散控制,它们对位选择性并无明显改善

    dict.cnki.net

  • There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.

    再采用空气相色谱法检测所得苹果多酚纯化中正己烷、甲苯、对二甲苯、邻二甲苯苯乙烯有机溶剂残留均低于检测限。

    www.boshuo.net

  • 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.

    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。

    dict.cnki.net

  • 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.

    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。

    dict.cnki.net

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