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公开(公告)号：US5393508A
公开(公告)日：1995-02-28
申请号：US118775
申请日：1993-09-10
CPC分类号： F28F21/082 , C01B21/16 , Y10S203/06
摘要： Solutions of hydrazine hydrate are vaporized, without any concomitant decomposition thereof, by heating such solutions, in the liquid phase, under conditions as to effect the decompression or volatilization thereof; this process is particularly applicable for the vaporization of that hydrazine hydrate solution contained in the reboiler of a column wherein the hydrolysis of an azine R.sub.1 R.sub.2 C.dbd.N-N.dbd.CR.sub.1 R.sub.2 is carried out, with recovery of hydrazine hydrate at the base of the column and of a ketone, R.sub.1 R.sub.2 C.dbd.O, at the column head.
摘要翻译： 通过在液相中加热这些溶液，在其减压或挥发的条件下，将水合肼溶液蒸发而不伴随其分解; 该方法特别适用于在塔的再沸器中蒸发含水合肼的水合物溶液，其中进行吖嗪R1R2C = NN = CR1R2is的水解，同时回收塔底部的水合肼和酮， R1R2C = O，在柱头。
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公开(公告)号：US06605265B1
公开(公告)日：2003-08-12
申请号：US08217752
申请日：1994-03-25
IPC分类号： C01B2116
CPC分类号： C01B21/16 , C07C249/00 , C07C251/88 , Y02P20/582
摘要： Azines, e.g., ketazines, are continuously produced by (i) establishing a loop having an azine reaction medium circulating therein, such loop including an azine reaction zone, means for separating azine final product from the circulating reaction medium, means for heating the reaction medium and for purging water therefrom, and means for recycling heated and purged reaction medium to the azine reaction zone, (ii) introducing hydrogen peroxide, ammonia and a carbonyl compound into the circulating reaction medium in the azine reaction zone, (iii) withdrawing azine final product thus formed from the circulating reaction medium. downstream of the azine reaction zone, (iii) thereafter purging water from the circulating reaction medium to maintain the volume thereof essentially constant, (iv) heating the circulating reaction medium to a temperature of at least 130° C., (v) recycling thus heated reaction medium to the azine reaction zone, and (vi), at any point along the loop, introducing a reagent into the circulating reaction medium as to essentially maintain the equilibrium of the azine-forming reaction; the final product azines are conveniently hydrolyzed into hydrazine hydrate.
摘要翻译： 通过（i）建立其中循环其中的吖嗪反应介质的环，包括吖嗪反应区的环路，用于从循环反应介质中分离吖嗪最终产物的装置，连续制备氮杂环丁烷，例如加入反应介质 和用于从其中清洗水的装置，以及用于将加热和净化的反应介质再循环到吖嗪反应区的装置，（ii）在吖嗪反应区中将过氧化氢，氨和羰基化合物引入循环反应介质中，（iii） 由循环反应介质形成的产物。 （iii）然后从循环反应介质中清洗水以使其体积保持基本恒定，（iv）将循环反应介质加热到至少130℃的温度，（v）由此回收 加热的反应介质到吖嗪反应区，和（vi）在沿着环的任何点，将试剂引入循环反应介质中，从而基本维持吖嗪形成反应的平衡; 最终产物吖嗪方便地水解成水合肼。
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