查询词典 methyl-phenoxide

As the early work to build the new art of catalytic distillation hydrolysis of methyl acetate, a non-equilibrium rate model and the calculation method based on it was established.

作为开发醋酸甲酯水解新工艺的前期工作，本文针对醋酸甲酯水解催化反应精馏新工艺，建立了非平衡级反应精馏速率模型和过程模拟的计算方法。

But the producing of PVA is followed by plenty of byproduct -methyl acetate, at a ratio of about 1 .7 tons of MeOAc per ton of PVA.

但在生产聚乙烯醇的过程中常产生大量的副产物醋酸甲酯(按重量计约为聚乙烯醇的1.7倍)。

The non-equilibrium rate model was used to simulate the catalytic distillation process of methyl acetate hydrolysis.

采用非平衡级速率模型对醋酸甲酯水解过程进行了模拟计算，考察了水酯比、回流进料比等对醋酸甲酯水解率及塔釜醋酸浓度的影响，得到了下一阶段工业化试验的工艺条件，为工业化生产提供了技术支持。

The new technology of hydrolysis of methyl acetate reaction can simplify procedure and improve operational behavior.

开发了一种适用于醋酸甲酯水解的催化反应精馏塔，具有催化剂装填量大、不易泄漏、更换方便等优点，通过实验验证，发现其反应过程与分离过程耦合良好，易于调整，开发了醋酸甲酯反应精馏水解新工艺，简化了流程，提高了过程的可操作性。

The SO_4~(2-)/TiO_2-SiO_2 solid superacid catalyst was prepared by sol-gel method;its catalytic activity was investigated to synthesis of methyl acetate.

用正交试验法对催化剂的制备条件进行优化，并对催化剂的酸强度、酸结构进行了系统的研究。

A large quantity of energy and de-ionized water is consumed in the old process. The purpose of this thesis is to apply CD technique to the old process of methyl acetate hydrolysis. In order to prepare for future industry process, we checked the mathematical model that has been established by our experiments.

本论文的目的是将催化蒸馏技术应用于醋酸甲酯水解工艺中，通过实验，对前期所建立的数学模型进行校核，考察各项工艺参数，发现并解决问题，获得第一手详实的数据资料，为进行下一步的工作作好充分准备，为将来的工业化生产提供可靠的数据参考与技术支持。

Accroding to the literature, the energy consuming of reclaim process was about 50%~60% of total cost of PVA production, while the energy consumption of methyl acetate recycling was about 70% of the energy consuming reclaim process.

有资料显示，整个PVA工厂的能耗有50～60%用于回收工段，而醋酸甲酯回收的能耗又占回收工段能耗的70%左右。

Dynamic adsorption model based on the pore diffusion was built to numericallysimulate the breakthrough curves of methyl acetate under different conditions and the results were in agreement with the experimental data. It showed that the model could give the information about the design of the industrial adsorption process.

本文建立了基于孔扩散的动态吸附模型，对不同条件下的醋酸甲酯的穿透曲线进行数值模拟，计算结果与实验结果符合较好，说明此动态模型可用于本体系吸附过程的工艺设计和放大。

Hydrolysis process of methyl acetate with catalytic distillation can be simulated successfully by a differential model.

用微分模型对醋酸甲酯催化精馏水解实验进行过程模拟。

The process has been simulated and optimized, and 99.5 wt% methyl acetate has been obtained in one column with 98% sulfuric acid as catalyst.

以98％浓硫酸作为催化剂，用醋酸和甲醇为原料，用一个塔成功制得纯度≥99.5％的醋酸甲酯，醋酸的转化率＞99.9％。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。