最后我们选用异二丙胺锂(LDA)为碱,在干冰丙酮浴下,合成了烯醇磷酸酯,并有很高的立体选择性。
At last , we used the base: LDA, dry ice-acetone bath , to synthesize the enol phosphates and gain very high rigio-selectivity.
以玉米淀粉为原材料、三聚磷酸钠为酯化剂、碳酰二胺为催化剂,半干法制备了高粘度磷酸酯淀粉。
Taking corn starches as raw material, sodium tripolyphosphate as esterifying agent and carbamide as catalyst, high-viscosity phosphate starch is prepared by semidry process.
以磷酸二氢铵、季戊四醇、三聚氰胺及丙烯酸树脂为原料研制了一种超薄膨胀型丙烯酸树脂钢结构防火涂料。
The title super-thin fire retardant intumescent coatings for steel structure is prepared with monobasic ammonium phosphate(ADP), pentaerythritol, melamine, and acrylic resin.
介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术,对由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.
研究了用三聚氰胺结晶法由湿法磷酸生产磷酸二氢钾的结晶动力学过程。
The crystallization kinetics of potassium dihydrogen phosphate from wet-process phosphoric acid purified by crystallization of melamine phosphate was investigated.
研究了三聚氰胺结晶法净化湿法磷酸生产磷酸二氢钾的结晶过程。
Crystallization course of potassium dihydrogen phosphate from wet process phosphoric acid purified by crystallization with melamine phosphate was investigated.
介绍了以硫磷酸为原料,与溴丙烷、二甲胺反应合成丙线磷的新工艺。
A new technology for preparation of Ethoprophos from o, o Diethyl Dithiophosphoric acid, Propance Bromide and Dimethylamine was introduced.
用己二胺、 己二酸及双功能团的氯化螺环磷酸酯经界面缩合制得含磷尼龙66。
Phosphorus containing ny1on-66 was prepared by the interphase condensation between adipic acid, hexamethylenediamine and dichloropentate.
用己二胺、 己二酸及双功能团的氯化螺环磷酸酯经界面缩合制得含磷尼龙66。
Phosphorus containing ny1on-66 was prepared by the interphase condensation between adipic acid, hexamethylenediamine and dichloropentate.
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