This paper introduces in detail the factors influencing the yield of the amino acetic acid with the chloroacetic acid ammonolysis process, and connecting with the production procedures, makes deep analysis, and puts forward some corresponding methods for increasing the yield.

詳細介紹了氯乙酸氨解法氨基乙酸生產(chǎn)過程中影響收率的因素人成视频在线免费观看观看，并結合生產(chǎn)過程進行了深入分析高清福利免费久久久久，有針對性地提出了提高收率的辦法欧美性爱十八岁以下禁止进入。

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

結果表明人人操人人摸人人看人人爽，氯乙酸的生產(chǎn)方法很多男人网站天堂，但只有乙酸催化氯化法實現(xiàn)了廣泛應用求一个免费在线观看的黄色网站。

Chapter two 4-Hydroxybenzoic acid is connected with PEG6000 through defoliant DCC at rooom temperature, then the product is refluxed with chloroacetic acid in acetone to afford PEG-bound phenyloxyacetic acid, which is reacted with thionyl chloride, ammonium thiocyanate and arylamines in turn to give PEG-bound disubstituded thioureas. After the cleavage with sodium methoxide in methanol, the eleven disubstituted thioureas are obtained.

第二章 利用PEG6000作載體，通過脫水劑DCC在室溫下將對羥基苯甲酸以酯鍵連接在PEG6000上日韩视频在线国产，再與氯乙酸在較溫和的條件下生成PEG6000支載的芳氧乙酸尤物视频入口，然后se.jizz，依次與亞硫酰氯、硫氰酸銨人人妻人人添人人爽欧美一区91、芳胺反應精品国偷自产在线不卡视频，生成PEG6000支載的硫脲，最后用甲醇鈉的甲醇溶液切割PEG国产精品H在线播放第一页，得到了十一種1快射视频网，3-二取代硫脲。

Esterification of terpineol with oxalic acid, chloroacetic acid and trichloroacetic acid by solid superacid MoO3/TiO2 was studied.

研究了MoO3/TiO2固體超強酸催化劑催化松節(jié)油與草酸人人射人人操人人骑人人插，氯乙酸美女美女大片黄a大片，三氯乙酸反應的規(guī)律。

The optimum synthetic conditions of ethyl chloroacetate are: molar ratio of chloroacetic acid to ethanol is 1:8, the quantity of catalyst[Fe2(SO4)3 xH2O] is 10% of the mass of chloroacetic acid, reaction time is 1 hour, 5A zeolite was used as dehydrating agent. In these conditions, the yield of ethyl chloroacetate was up to 73%.

用Fe_2(SO_4)_3·xH_2O作為催化劑合成氯乙酸乙酯的較佳反應條件是：酸醇物質的量之比為1：8无码免费A片久久，催化劑用量為氯乙酸質量的10％欧美性爱AAAAAAA，以5A分子篩作為脫水劑，回流時間1h亚州美日韩一区二区三区，收率達73％以上www.aiai.com。

Optimal process conditions for preparing 2-oxo-1, 4-piperazine diacetic acid(3-KP): 2-oxo-1-piperazine acetic acid was combined with chloroacetic acid at a mole ratio of 1 to 1.1, at temperature 40℃for 8 hours.

通過單因素分析，合成3-KP 的最佳反應條件為：反應溫度為40℃在线看的a片，反應時間為8 小時四位少妇黑店精油按摩，氯乙酸∶S-KP 的摩爾比為1.1∶1。

N,N'-ethylenediamine diacetic acid was prepared by condensation of ethylenediamine, formaldehyde and potassium cyanide. Then 2-oxo-1-piperazine acetic acid was prepared from N,N'-ethylenediamine diacetic acid. In addition, 2-oxo-1, 4-piperazine diacetic acid(3-KP) was prepared from 2-oxo-1-piperazine acetic acid with chloroacetic acid.

本文用乙二胺桃花在线观看国产电影、甲醛和氰化鉀合成了N国产成人精品一区二三区，N′—乙二胺二乙酸，然后由N99色精品视频，N′—乙二胺二乙酸合成了2—氧—1—哌嗪乙酸又粗又黄又硬又爽的免费视频,，再由2—氧—1—哌嗪乙酸和氯乙酸合成了2—氧—1，4—哌嗪二乙酸(3-KP)精品视频一区二区在线导航。

In consideration of the competition of reactions between acetic acid, chloroacetic acid, dichloroacetic acid andchlorine, a competition factor was introduced for the improvement of fitting accuracy between calculated and experimental value of concentration.

結果表明日本网页在线观看，加入&競爭因子&的平行-連串宏觀動力學模型能準確地反映己酸光氯化合成三氯乙酸的反應動力學規(guī)律。

Up to day, the batch process of producing chloroacetic acid is still extensively used in our country, by which byproduct dichloroacetic acid comes out while chloroacetic acid beingproduced.

控制反應體系中氯乙酸含量不超過30%欧美性爱做，最終所得產(chǎn)品氯乙酸含量達98.5%啪啪啪日本黄色网，二氯乙酸含量小于0.5%，以目前實驗裝置24小時可得氯乙酸2.938kg亚洲黄色一级a片。

The extraction of Pr3+was studied by using heptane containing bis(2-ethylhexyl)phosphinic acid in sodium perchlorate,chloroacetic acid and citric acid medium ,respectively.

研究了二(2-乙基己基)膦酸(PIA-8)的庚烷溶液分別在高氯酸鈉日韩系列在线精品视频观看网站大全、氯乙酸、檸檬酸介質中對Pr3+的萃取国产国产精品偷在线观看。