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- The quality characteristic of butyl acetate was introduced. Advances in research on synthesis of butyl acetate at home were summarized. The esterifying catalysts were classified. 摘要介绍了乙酸正丁酯的性能特点以及合成方法，对国内目前合成乙酸正丁酯的进展情况进行了综述，并对酯化反应催化剂进行了分类比较。
- esterifying catalyst 酯化催化剂
- The offer of a new job provided just the catalyst she needed. 这份新工作正是她所需要转变的契机。
- Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso-amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid. 摘要以活性炭固载磷钨酸作为催化剂，用没食子酸与异戊醇直接酯化合成了没食子酸异戊酯。
- Fatty acid esters of starch were new and non-ionic surfactants,which could be synthesized by esterifying with moderate catalyst. 脂肪酸淀粉酯是一种新型的非离子型表面活性剂,具有广泛的应用价值。
- The last step is to regenerate the catalyst. 最后一步是将催化剂还原。
- War is a catalyst to help them to choose. 战争是一副催化剂来帮助他们选择。
- Debate is the best catalyst of thought. 争论是思想最好的催化剂。
- The n-butyl gallate was synthesized by esterifying n-butyl alcohol and gallic acid in the presence of phosphato-molybdic acid and phosphato-tungstic acid catalyst. 研究了以磷钼酸和磷钨酸为催化剂,由棓酸和正丁醇制备棓酸正丁酯的反应。
- Acetylated starches with high degree of substitution were synthesized from cornstarch with acetic anhydride as esterifying agent and methanesulphonic acid as catalyst. 以玉米淀粉为原料,丁二酸酐为酯化剂,以水为媒介,氢氧化钠为催化剂对低取代度淀粉丁二酸酯的制备工艺进行了研究。
- I see my role as being a catalyst for change. 我认为我的角色是促成变革。
- This chemical is called a catalyst. 这种特殊的化学材料是一种催化剂
- Kunming Precious Metal Catalyst Co., Ltd. 昆明贵研催化剂有限责任公司。
- Dicussion on Chinese Catalyst Used in G.H.U. 汽油加氢装置催化剂国产化的探讨。
- Is that what you think was the catalyst? 这就是你所认为的催化剂吧?
- Vent self-awareness and self-growth is a catalyst. 宣泄是自我认识与自我成长的催化剂。
- This tragedy will be a catalyst for good. 这场悲剧会是美好的催化剂。
- JERRY: And you're sure the floss was the catalyst? 杰瑞：你确定那牙线就是催化剂？
- Are the Olympics a Catalyst for China Reforms? 奥运会是否是中国改革的催化剂？
- Using PEG400/KI for catalyst, the yield was 92%. 用聚乙二醇 ( PEG) 4 0 0和 KI双组分催化剂 ,得产率 92%25。
