以下为句子列表：
英文: In the downstream products of methanol, dimethyl carbonate (DMC), dimethyl oxalate(DMO) and dimethyl ether(DME) are considered to be valuable.
中文: 在甲醇下游产品开发方面则应重视碳酸二甲酯(DMC)、草酸二甲酯(DMO)和二甲醚(DME)。
更详细...
英文: The catalytic properties of zinc oxide catalysts from zinc oxide, zinc acetate calcined at 600℃ and zinc carbonate prepared through deposition, in the synthesis of dimethyl carbonate by alcoholysis of urea were studied.
中文: 摘要研究了在600℃煅烧氧化锌、醋酸锌和沉淀法制得碳酸锌而得到的氧化锌催化剂，对尿素醇解制备碳酸二甲酯的催化作用。
更详细...
英文: The synthesis of dimethyl-hexane-1, 6-dicarbamate (HDU) from 1, 6-Hex anediamine and dimethyl carbonate is a complex reaction system.
中文: 摘要由1,6-己二胺与碳酸二甲酯制备六亚甲基二氯基甲酸甲酯为一复合反应体系。
更详细...
英文: This method, however, involves using a large excess of diethyl carbonate (for example, 4-8 mols.); it also involves preparing sodium ethylate by dissolving sodium metal in ethanol, which process must be carried out very slowly and carefully if it is to be
中文: 但是这一方法涉及到使用大量过量的二乙基碳酸酯（例如，4-8摩尔）；同时也涉及到在乙醇中溶解纳来制备乙醇纳的反应，这个过程必须非常缓慢小心地进行，如果在工业生产级别上是用这一方法就比较麻烦了。
更详细...
英文: We have now found that if the reaction is carried out in presence of a hydrocarbon which boils above 100°C, for example toluene, then much or all of the excess of the expensive diethyl carbonate can be replaced by the hydrocarbon.
中文: 我们现在发现如果反应在一种沸点在一百摄氏度以上的碳氢化合物中，例如甲苯中进行，那么大部分或者全部的过量的昂贵的二乙基碳酸酯就可以被碳氢化合物所取代。
更详细...
|
