• 最后我们选用异锂(LDA)为碱,在干冰丙酮浴下,合成磷酸很高的立体选择性。

    At last , we used the base: LDA, dry ice-acetone bath , to synthesize the enol phosphates and gain very high rigio-selectivity.

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  • 玉米淀粉原材料、三聚磷酸为酯化、碳酰二胺为催化剂,半干法制备了高粘度磷酸淀粉

    Taking corn starches as raw material, sodium tripolyphosphate as esterifying agent and carbamide as catalyst, high-viscosity phosphate starch is prepared by semidry process.

    youdao

  • 磷酸二季戊四醇三聚氰丙烯酸树脂原料研制了一种超薄膨胀型丙烯酸树脂结构防火涂料。

    The title super-thin fire retardant intumescent coatings for steel structure is prepared with monobasic ammonium phosphate(ADP), pentaerythritol, melamine, and acrylic resin.

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  • 介绍了三聚氰反应循环净化湿磷酸复分解生产磷酸二工艺技术,对两种不同原料出发的工艺路线所得的产品进行了成本比较。

    The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.

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  • 研究用三聚氰结晶湿磷酸生产磷酸结晶动力学过程

    The crystallization kinetics of potassium dihydrogen phosphate from wet-process phosphoric acid purified by crystallization of melamine phosphate was investigated.

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  • 研究三聚氰结晶净化湿磷酸生产磷酸结晶过程

    Crystallization course of potassium dihydrogen phosphate from wet process phosphoric acid purified by crystallization with melamine phosphate was investigated.

    youdao

  • 介绍了以硫磷酸为原料,丙烷、反应合成丙线磷工艺

    A new technology for preparation of Ethoprophos from o, o Diethyl Dithiophosphoric acid, Propance Bromide and Dimethylamine was introduced.

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  • 二胺、 己及双功能团的氯化螺环磷酸酯经界面缩合制得含尼龙66。

    Phosphorus containing ny1on-66 was prepared by the interphase condensation between adipic acid, hexamethylenediamine and dichloropentate.

    youdao

  • 二胺、 己及双功能团的氯化螺环磷酸酯经界面缩合制得含尼龙66。

    Phosphorus containing ny1on-66 was prepared by the interphase condensation between adipic acid, hexamethylenediamine and dichloropentate.

    youdao

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