Therefore, Chinese Chloroacetic acid industry needs to improve present production technics, to increase production capacity and equipment standard, develop and take advantage of newfashioned efficient catalyst, make better manners and methods for controlment, to reinforce recycle and synthetically utilize mother liquor,so as to raise product quality and level, reduce production cost, decrease environment pollution, increase economic benefits.

因此91福利精选在线导航，中國氯乙酸行業(yè)要改進現(xiàn)行生產(chǎn)工藝另类小说另类图片视频一区，提高生產(chǎn)規(guī)模與裝備水平黄色视频全免费，開發(fā)利用新型高效催化劑男人天堂网免费视频在线观看，改進控制手段與方式久久久久精品高清播放一区，加強母液的回收與綜合利用夜色福利免费网页在线视频，從而提高產(chǎn)品質(zhì)量和檔次，降低生產(chǎn)成本97在线看视频道福利免费，減少環(huán)境污染人妻社区论坛，增加經(jīng)濟效益。

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作載體国产曰又深又千爽免费视频，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H动漫无码网站免费看网址免费A片，再與氯乙酸在較溫和的條件下生成PEG6000支載的芳氧乙酸，然后日本视频高清WWW，依次與亞硫酰氯国产精品视频7171、硫氰酸銨、芳胺反應国产精品视频一二三四五，生成PEG6000支載的硫脲欧美视频专区精品第一页，最后用甲醇鈉的甲醇溶液切割PEG，得到了十一種1中文字幕乱码亚洲无限码，3-二取代硫脲一级片免费按摩久久。

A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.

目前企業(yè)生產(chǎn)分析按照國家專業(yè)標準﹝1﹞進行，但分析周期長91偷啪自啪在线播放第二十页，不能對反應過程進行有效地實時控制日韩午夜在线观看短视频网站大全，生產(chǎn)過程的實際中控方法為密度法。

It was studied in this thesis the preparation of Artemisia glue, under the condition of alkali, chloroacetic acid was used as etherification agent and the properties, structures and application in quick-frozen dumpling were researched too.

本論文主要研究了以沙蒿膠為原料wwwav72com，氯乙酸為醚化劑超级毛特级毛一级毛，在堿性條件下合成羧甲基沙蒿膠的工藝，并研究了羧甲基沙蒿膠的性質(zhì)日逼,一级黄色A级片,APP在看的、結構及其在速凍水餃中的應用777色。

Six derivatives of 4-phenyl-3-phenoloxymethyl-5-mercapto-1,2,4-triazlyole were synthesized from phenoloxyacetyl hydrazide by two-steps reaction under microwave irradiation, then reacted with 2-chloroacetic acid to give six novel derivatives of 2-(3-phenoxymethyl-4-phenyl-[1,2,4]triazole-5-thio)-acetic acid.

在微波輻射條件下，芳氧乙酰肼經(jīng)兩步反應制得4-苯基－3-芳氧甲基－191人人操人人爱，2人成视频在线免费观看观看，4-三唑－5-硫酮衍生物，再與氯乙酸反應得到6種尚未見文獻報道的2-（3-芳氧甲基－4-苯基－1精品一精品一极毛片，2狼友网站在线观看入口，4-三唑－5-硫基）乙酸衍生物精品一区视频。

METHODS Polyaldehyde dextran-epirubicin was made by sodium periodate oxidation.Carboxy-methyldextran-epirubicin was made by chloroacetic acid carboxymethylation followed by conjugating in hydrazone bond.

采用高碘酸鈉氧化法制備聚醛基葡聚糖-表柔比星偶合物，將葡聚糖羧甲基化后制備腙健連接的羧甲基葡聚糖-表柔比星偶合物国产黄色试看视频。

This article through the belt hydroxyl aldehyde class material and the chloroacetic acid response, the synthesis intermediate, then with the neighbouring phenylene diamine responded again synthesized 6 kind of benziminazole class compound, including 4 kinds not to report.

本文通過帶羥基的醛類物質(zhì)和氯乙酸的反應性三级视频久久，合成中間體，然后再與鄰苯二胺反應合成了6種苯并咪唑類化合物99九九久久综合伊人不卡，其中有4種還未被報道黄频污欧美激情。

Carboxymethyl dimethyl sulfonium chloride as a novel aquatic feed attractant was synthesized with chloroacetic acid, methyl sulfide and in solvent free system.

運用無溶劑合成方法，利用較低成本的氯乙酸為原料與二甲硫醚反應日韩精品入口在线观看，合成新型水產(chǎn)動物誘食劑——氯化羧甲基二甲基锍日韩精品青青视频在线观看免费下载。

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，氯乙酸国产精品国产原创国产AV，三氯乙酸反應的規(guī)律欧美三级视频播放在线观看网址。

The yield of borneol and isoborneol was 52.93%,and selectivity for borneol was 60.46%at the conditions of programmed temperatures,reaction time 315 min,saponification time 1h,mass part of catalyst 5%,and terpineol:chloroacetic acid 100∶25.

酯化反應采用程序升溫，時間315 min日韩手机黄色视频，皂化時間1 h一级A片欧美久久一级香蕉片。催化劑用量為松節(jié)油質(zhì)量的5%，松節(jié)油∶氯乙酸為100∶25時国产馆在线精品极品麻豆，龍腦得率為52.93%午夜日韩欧美，正龍腦的選擇性為60.46%。