1) ketazine
酮连氮
1.
The foreign recent research and development progress of methods for preparing hydrazine hydrate by synthesis and hydrolysis of ketazine using H2O2 as oxidant is emphatically introduced.
重点介绍了国外近年来以过氧化氢为氧化剂,通过酮连氮合成与水解,制备水合肼方法研发进展;介绍了无水肼制备方法研发进展;还介绍了水合肼和无水肼提纯方法研发进展;提供了国外近期有关水合肼和无水肼生产信息。
2.
Research progresses of catalysts for synthesizing ketazine intermediate in the production process of hydrazine hydrate by method of hydrogen peroxide are introduced.
介绍了过氧化氢法生产水合肼过程中中间体酮连氮合成用催化剂的研究进展。
3.
Synthesis progress on ketazine preparation such as hydrazine hydrate method,Bayer method,hydrogen peroxide method,and air oxidation were reviewed,and both the advantages and disadvantages of each synthetic method were reviewed.
详细地介绍了制备酮连氮类化合物的水合肼法、Bayer法、过氧化氢法、空气催化氧化法,并对各种方法的优缺点作了简要的评价。
2) methyl ethyl ketazine
丁酮连氮
1.
The hydrolyze of methyl ethyl ketazine(MEK) was studied.
对丁酮连氮水解制肼反应的工艺条件进行了研究,考察了反应条件及不同催化剂对反应影响。
2.
The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions.
以丁酮连氮和去离子水为原料,研究了在催化剂条件下丁酮连氮水解制水合肼的不同工艺条件;考察了催化剂种类、丁酮连氮用量、反应温度、转速各因素对反应收率的影响,结果显示,较佳的工艺条件是选用DK110型弱酸阳离子交换树脂为催化剂,n(丁酮连氮)︰n(水)=1︰9比例进料,反应温度190℃,转速为700 r/min。
3.
Synthetic conditions of methyl ethyl ketazine from butanone,NH3 and hydrogen peroxide was studied in the presence of catalyst.
以丁酮、氨气和过氧化氢为原料,研究了在催化剂条件下水合肼中间体丁酮连氮合成的不同工艺条件;考察了催化剂种类及其用量、反应时间、反应温度、双氧水用量各因素对反应收率的影响,结果显示,当催化剂选用甲酰胺,催化剂用量0。
3) ketazine process
酮连氮法
1.
The production processes of hydrazine hydrate mainly comprise raschig process, urea process, ketazine process and hydrogen peroxide process.
水合肼的生产工艺主要有拉西法、尿素法、酮连氮法和过氧化氢法 4 种,前 2 种方法存在设备投资和能耗较高等缺点,在国外已较少使用。
4) ketazine
丙酮连氮
1.
Investigation of ketazine hydrolysis at atmospheric pressure
常压下丙酮连氮水解研究
5) ketazine
(某)酮连氮
6) ketazine
甲酮连氮
补充资料：苄叉连氮
分子式：C14H12N2
分子量：208.26
CAS号：28867-76-7
性质：熔点92-93℃。
制备方法：由苯甲醛和水合肼缩合而得。在反应锅中加入水合肼，于20-30℃搅拌，滴加苯甲醛。滴加完后继续搅拌2h，放置过夜。次日过滤，用水洗涤至近中性，烘干，得粒状蓝色固体，即苄连氮。
用途：医药中间体。
分子量：208.26
CAS号：28867-76-7
性质：熔点92-93℃。
制备方法：由苯甲醛和水合肼缩合而得。在反应锅中加入水合肼，于20-30℃搅拌，滴加苯甲醛。滴加完后继续搅拌2h，放置过夜。次日过滤，用水洗涤至近中性，烘干，得粒状蓝色固体，即苄连氮。
用途：医药中间体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条