碳酸二苯酯 的英文怎麼說
中文拼音 [tànsuānèrběnzhǐ]
碳酸二苯酯
英文
diphenyl carbonate-
Diphenyl carbonate shows a typical vinyl ester effect.
碳酸二苯酯表現典型的乙烯的酯類的效應。Separating and purifying diphenyl carbonate on cooling crystallization
冷卻結晶法分離和精製碳酸二苯酯It is also known that sodium ethylate and diethyl phenylmalonate interact together to give ethyl phenylacetate and diethyl carbonate
眾所周知,乙醇納和二乙基苯基丙二酸酯反應可以得到乙基乙酸苯酯和二乙基碳酸酯。The perovskite - type metal oxides supports and the corresponding supported pd catalyst were prepared by microwave, and characterized by xrd, sem and used in the direct synthesis of diphenyl carbonate ( dpc )
摘要利用微波法制備了鈣鈦礦型復合氧化物載體及把負載鈣鈦礦型催化劑,用xrd和sem對載體及催化劑進行了表徵,並將微波法制備的催化劑用於一步氧化羰基化合成碳酸二苯酯( dpc )實驗。In this paper, a varieties of purification processes are carefully discussed according to three methods of synthesis of diphenyl carbonate
摘要本文按合成碳酸二苯酯的三種方法光氣法、酯交換法和氧化羰化法,詳細介紹了碳酸二苯酯的提純工藝。Compared with the catalyst prepared by precipitation, the catalyst prepared by microwave shows more homogenous distribution in particle and pore size and better catalytic activity with the yield of dpc of about 7 %
與沉澱法相比,微波法制備的催化劑具有比較均勻的尺寸和形狀,活性組分在載體上的分佈較好,催化劑活性較高,碳酸二苯酯的收率接近7 % 。It is to be understood that when in this specification we speak of a dialkyl carbonate and similarly of a dialkyl phenylmalnate, that term does not imply that the two alkyl groups are necessarily the same
有一點要理解:在說明中我們提到二烷基碳酸酯,相似的我們還提到了二烷基苯基丙二酸酯,這兩個術語並不是暗示這兩個烷基官能團必須是一樣的。Study on extractive distillation of dimethyl carbonate from its azeotrope with methanol using ethyl benzene
乙苯萃取精餾分離甲醇與碳酸二甲酯二元共沸物Study on extractive distillation of dimethyl carbonate from its azeotrope with methanol using toluene as extracting agent
甲苯萃取精餾分離甲醇與碳酸二甲酯共沸物It has further been proposed to make diethyl phenylmalonate by taking the system using an excess of the diethyl carbonate ( which then acts also as solvent ) to force the equilibrium over in the desired direction and distilling out the equilibrium until the reaction has gone substantially to completion
因此我們提出了按照這一系統使用過量的二乙基碳酸酯(後面作為溶劑)強迫平衡向所要的方向移動,當反應基本上完全完成後蒸餾平衡向來生產二乙基苯基丙二酸酯。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
我們現在發現如果反應在一種沸點在一百攝氏度以上的碳氫化合物中,例如甲苯中進行,那麼大部分或者全部的過量的昂貴的二乙基碳酸酯就可以被碳氫化合物所取代。The use of such “ mixed ” dialkyl carbonates may give rise not only to similar “ mixed ” malonates, e. g. the corresponding methyl ethyl phenylmalnate, but also to mixtures of simple malonates
因此使用這種混合二烷基碳酸酯不僅可能得到相似的丙二酸酯,例如相對應的甲基乙基苯基丙二酸酯,而且可能得到簡單丙二酸酯的混合物。分享友人