This article studies benzyl - triethyl ammonium chloride as catalyst of phase - transfer to prepare for phenyl acetate. Get the best operating condition and get the yield of 86%.
研究了以苄基三乙基氯化铵为相转移催化剂制备乙酸苄酯,得出了最佳操作条件,使反应收率达86%。
The effect of Z-stage location on bleaching efficiency and selectivity is discussed. A description of, and the best operating condition for, the so-called Z3 technology are also presented.
讨论了臭氧段的位置对漂白效率和选择性的影响,叙述并提出了Z 3技术的最佳操作条件。
Under the best operating mode condition, flue gas desulphurization efficiency can be up 80%, which proves that the three-dimensional electrode system has better desulphurization performance.
在最佳条件下,烟气脱硫效率能达到80%以上,说明三维电极体系有较好的脱硫性能。
Ground maintenance, so that often trap in good operating condition, the ability to protect the best seasons to reach and popularity of economic motives.
勤检修,使疏水阀时常处在良好的作业状态下,能力保障达成最节令能动机和普及经济效益。
Ground maintenance, so that often trap in good operating condition, the ability to protect the best seasons to reach and popularity of economic motives.
勤检修,使疏水阀时常处在良好的作业状态下,能力保障达成最节令能动机和普及经济效益。
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