查询词典 isoamyl acetate

Through the experiments and result analysis,this paper discusses the factors influencing the catalytic synthesis of isoamyl acetate with the crystal aluminum chloride as the catalyst.

通过实验及结果分析，讨论了影响结晶三氯化铝催化合成乙酸异戊酯反应的因素。

In the end, the extractive distillation method was applied to separate and purify the binary azeotrope mixture, methanol-dimethyl carbonate. The isoamyl acetate was used as extractant and the two tower system was introduced to continuous extractive distillation operation. The results show a better separation effect.

最后采用萃取精馏的方法，对甲醇-碳酸二甲酯的二元共沸混合物进行了分离提纯研究，以毒性较低的乙酸异戊酯为萃取剂，采用两塔连续萃取精馏操作，结果表明，分离效果比较理想。

In 1 task, only isoamyl acetate was used as odorant.

应用AFNI进行数据后处理。

With isoamyl acetate as odorant, modified OEP-98C olfactometer, and event-related design, olfaction fMRI can depict cortex activation at primary and secondary olfactory cortex.

以醋酸异戊酯作为嗅觉刺激剂和改进后的OEP-98C型嗅觉诱发电位仪作为嗅觉刺激器，事件相关设计的嗅觉fMRI可以较好地显示初级和次级嗅觉皮层的激活。

The average recoveries of ethyl acetate and isoamyl acetate were

该法灵敏度高，可准确检测啤酒中的高级醇和酯类。

Results The mixing, loading and storing processes of the construction, might generate lots of occupational hazards, including toluene, dimethylbenzene, trimethylbenzene, isopropanol, butyl alcohol, propanol, methyl methacrylate, butyl acetate, methyl isobutyl ketone, methyl ethyl ketone, acetic ether, nitro-cotton, n-hexane, n-heptane, carbinol, ethanol, ethyl propionate, diisobutyl ketone, glycol ether, isoamyl acetate, 2,4-toluene diisocyanate, isophorone, noise, power frequency electric fields.

结果 该项目在混兑生产和装卸、仓储过程中，可能产生的职业病危害因素主要有甲苯、二甲苯、三甲苯、异丙醇、丁醇、丙醇、甲基丙烯酸甲酯、乙酸丁酯、甲基异丁基甲酮、丁酮、乙酸乙酯、硝化棉、正己烷、正庚烷、甲醇、乙醇、乙酸丙酯、二异丁基甲酮、乙二醇乙醚、乙酸异戊酯、2，4甲苯二异氰酸酯、异佛尔酮、噪声、工频电场。

Esterification of acetic acid with isoamyl alcohol catalyzed by ferric chloride was studied,and effect of different factors such as reaction time,dosage of catalyst and ratio of acetic acid to isoamyl alcohol on the yield of isoamyl acetate was carefully examined.

研究了以三氯化铁为催化剂乙酸与异戊醇的酯化反应，考察了反应时间、催化剂用量、醇酸摩尔比等因素对乙酸异戊酯收率的影响。

When material ratio of isoamyl alcohol to glacial acetic is 0.6:1; amount of catalyst is 2.3%~3.4% of isoamyl alcohol; reaction time is 3h; yield of isoamyl acetate is 88%; the ester purity of product is 99.5%.

实验表明，该催化剂有很好的催化活性，当醇酸物质的量之比为0.6：1，反应3h，催化剂用量为醇质量的2.3%~3.4%时，酯化收率可达88%，产品纯度达99.5%。

There were 2 types of tasks in the experiment. In one task, only isoamyl acetate was used as odorant. In the other task, to avoid possible decreased olfactory attention, vanillin was given before each presentation of isoamyl acetate.

采用事件相关设计，每名受试者完成两段嗅觉刺激任务，一个是单一醋酸异戊酯刺激，另一个在醋酸异戊酯刺激前给予香草醛，采用fMRI分析嗅觉皮层的活动。

Based on the reactive distillation technology, the as-prepared nanostructured manganese oxides are also used to catalyze the esterification reaction between acetic acid and isoamyl alcohol to synthesize isoamyl acetate.

动力学研究表明本实验的催化氧化反应遵循动力学规律r(来源：ABC70a8论文网www.abclunwen.com)_A=333.3×c_A~(1.76)。以所制备的纳米结构锰氧化物为催化剂，采用反应蒸馏技术进行了乙酸异戊酯的合成研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。