氯乙酸的

Sulfur method replaced by acetic anhydride method for chloroacetic production is the trends in domestic.

指出在国内用醋酐法代替硫磺法生产氯乙酸的必然趋势。

The results show, there are many methods for Chloroacetic acid production, but only the Catalytic Chlorination of acetic acid is extensively applied.

结果表明，氯乙酸的生产方法很多，但只有乙酸催化氯化法实现了广泛应用。

Production process and market requirement of chloroacetic acid at home and abroad were introduced.

钱伯章，氯乙酸的生产工艺和市场分析介绍了国内外氯乙酸的生产工艺和市场需求。

A series of novel polyethylene glycol derivatives was synthesized by esterification of chloroacetic acid with polyethylene glycol.

介绍了一氯乙酸在农药、医药、日用化工及有机工业中的应用，评述了一氯乙酸的工业生产现状。

This study developed a new method on the determination of carcinogenic disinfection by-products-trace dichloroacetic acid and trichloroacetic acid in tap water by ion chromatography-electrospray-tandem mass spectrometry(IC-ESI-MS/MS).

建立了一种采用离子色谱-串联电喷雾四级杆质谱联用技术检测自来水中可致癌的饮用水消毒副产物二氯乙酸和三氯乙酸的方法。

The rather amount of dichloroacetic acid not only enhances consumption of raw materials, but also increases the cost, with the difficulty to separate it from the product later the quality of products drops. Dichloroacetic acid is of a few uses causing the huge waste of the fund and equipments.To control the dichloroacetic acid coming out and decrease the consumption o

通过大量实验，对反应精馏技术的原理进行了理论研究，从中探索得出反应精馏法合成氯化节、氯乙酸等有机氯化物的工艺路线，为氯化节和氯乙酸的生产提供了一条新的生产工艺，为反应精馏技术应用的理论研究拓展了新的内容，并为工程设计提供了基本数据。

Good correlations were obtained between aromatic ring destruction and trichloroacetic acid , but dichloroacetic acid production were related to not only activated aromatic ring but also nitrogenous type structures such amino acid type structure.

从腐殖质的结构特性与卤乙酸的相关性分析，得出三氯乙酸的形成主要与腐殖质的芳香环的断裂有关。DCAA的形成则与腐殖质上芳香环和含氮官能团的多少有关。

An coupling apparatus with a chlorination reactor and a melt crystallizer was built,which was used in chlorination of acetic acid and separation of monochloroacetic acidby crystalliza- tion at the same time.

用氯化反应与熔融结晶耦合装置，进行乙酸氯化与产物氯乙酸的结晶分离，避免了 MCA 的深度氯化，从而提高了 MCA 的收率。

In the present dissertation, the principles and application of the reaction rectification techology in the syntheses of benzyl chloride, chloroacetic acid, monochloroacetone were approached.

本论文采用反应精馏技术氯化苄的合成、氯乙酸的合成进行了认真的研究，并且对一氯丙酮、氯苄系列产品进行了反应精馏研究，都得到了理想的结果。

In the case of HAA2, optimised IC and MS parameters including eluent gradient, temperature and collision energy etc.

在优化的色谱和质谱条件下，二氯乙酸和三氯乙酸的检出限分别为0.053 μg/L和0.46 μg/L。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。