ethylene carbonate 中文意思是什麼
ethylene carbonate
解釋
碳酸乙二酯-
New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded
闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展；同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。 -
Aminolysis studies of ethylene carbonate and polymer support of vinylene carbonate and 2 - hydroxyethyl methacrylate
羥乙酯共聚物交聯載體的胺解反應研究 -
Content of the project : utilize co2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc
項目內容：利用二氧化碳資源，新建碳酸二甲酯、顆粒乾冰粉、水楊酸、輕質氧化鮮、碳酸鈉、乙撐脲生產線。 -
Rough calculation of investment : 1 ) methyl carbonate : total investment is rmb100 million yuan ; investment return period is 4 years. 2 ) granular dry ice powder : total investment is rmb31 million yuan ; investment return period is 2 years. 3 ) salicylic acid : total investment is rmb25 million yuan ; investment return period is 3 years. 4 ) sodium carbonate : total investment is rmb50 million yuan ; investment return period is 3 years. 5 ) ethylene urea : total investment is rmb60 million yuan ; investment return period is 4 years
投資概算： 1 、碳酸二甲酯項目總投資1億元，投資回收期4年； 2 、顆粒乾冰粉項目總投資3100萬元，投資回收期2年； 3 、水楊酸項目總投資2500萬元，投資回收期3年； 4 、輕質氧化鮮項目總投資2000萬元，投資回收期2年； 5 、碳酸鈉項目總投資5000萬元，投資回收期3年； 6 、乙撐脲項目總投資6000萬元，投資回收期4年。
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