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- Process for the isolation of citral from natural Litsea cubeba oil and lemen oil were investigated. 另外从柠檬草油的轻度馏份中,分离得到高质量的月桂烯。
- Ionone was synthesized from Litsea cubeba oil and lemen oil,and condition of condensation,cyclization and purification of product was studied. 以山苍子油、柠檬草油为原料合成紫罗兰酮,研究了缩合反应、环化反应、产品精制的工艺条件;
- Content of citral isolated by intermittent rectifying under reduced pressure was reach 97%,and high content of myrcene was also obtained from lemen oil. 获得适宜的工艺条件,分离得的单离柠檬醛含量最高达97%25。另外从柠檬草油的轻度馏份中,分离得到高质量的月桂烯。
- Keywords Litsea cubeba oil;lemen oil;rectifying;citral; 山苍子芳香油;柠檬草油;精馏;柠檬醛;
- Keywords ionone;Litsea cubeba oil;lemen oil;citral;condensation;cyclization;pseudoionone; 紫罗兰酮;山苍籽油;柠檬草油;柠檬醛;缩合反应;环化反应;假性紫罗兰酮;
- He slicks his hair down with oil every day. 他每天搽油把头梳得光溜溜的。
- The bishop anointed the new king with oil. 主教为新国王登基举行涂油仪。
- The oil tanker soon got out of sight. 油船不久就看不见了。
- The recession trod on the heels of the oil crisis. 经济萧条紧随着石油危机而来。
- Go and get some more oil so we don't run short. 去多弄些油来以免到时候用光了。
- We have found oil under the North Sea. 我们在北海发现了石油。
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- The holed tanker was disgorging oil. 撞了个窟窿的油船正在喷油。
- The oil is leaking out from the crankcase. 没已从曲轴箱中漏出来。
- The plant converts crude oil into gasoline. 这家工厂将原油加工成汽油。
- Half the oil in the lamp had burnt away. 油灯中一半的油已经烧掉了。
- Oil share show modest gain over the week's trading. 石油股票价在上星期的交易中略有上升。
- Mr Smith told me to hold on to my oil shares. 史密斯先生叫我不要卖掉石油股票。
- The gallery has a show of French oil painting. 这个美术馆在展出法国油画。
- Smoke was rolling up from the burning oil up smoke. 正在燃烧的汽油箱上浓烟滚滚。