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    • 1. 发明授权
    • Method for preparing hydrazine hydrate
    • 水合肼的制备方法
    • US06482383B1
    • 2002-11-19
    • US09674574
    • 2000-10-31
    • Jean-Pierre Schirmann
    • Jean-Pierre Schirmann
    • C01B2116
    • C01B21/16
    • A method for preparing hydrazine hydrate comprising: (a) reacting ammonia, hydrogen peroxide and methyl ethyl ketone in a working solution to form an azine; (b) separating the working solution from a mixture comprising the azine, methyl ethyl ketone oxime and optionally the methyl ethyl ketone which had not reacted; (c) recycling the working solution to step (a) after an optional treatment; (d) hydrolyzing the azine to obtain hydrazine hydrate and regenerating the methyl ethyl ketone; (e) recycling to step (a) the methyl ethyl ketone. In step (d) the methyl ethyl ketone oxime is purged.
    • 一种制备水合肼的方法,包括:(a)在工作溶液中使氨,过氧化氢和甲基乙基酮反应形成吖嗪; (b)从包含吖嗪,甲基乙基酮肟和任选的未反应的甲基乙基酮的混合物中分离工作溶液; (c)在任选处理之后将工作溶液循环到步骤(a); (d)水解吖嗪以获得水合肼并再生甲基乙基酮; (e)回收步骤(a)甲基乙基酮。 在步骤(d)中,清除甲基乙基酮肟。
    • 7. 发明授权
    • Process for the preparation of hydrazones
    • 制备腙的方法
    • US3943132A
    • 1976-03-09
    • US406467
    • 1973-10-15
    • Jean-Pierre SchirmannHenri MathaisPierre TellierFrancis Weiss
    • Jean-Pierre SchirmannHenri MathaisPierre TellierFrancis Weiss
    • C07D213/77C07B43/00C07C20060101C07C67/00C07C241/00C07C251/76C07C251/82C07C251/84C07C251/86C07D20060101C07C109/14C07C109/16C07C109/18
    • C07C249/16C07C251/76C07C251/84
    • This invention relates to a method of preparing hydrazones of the formula ##EQU1## in which R.sub.1 and R.sub.2, which may be identical or different, represent a linear alkyl radical of from 1 to 12 carbon atoms, a branched alkyl or cycloalkyl radical of from 3 to 12 carbon atoms, an aromatic radical of from 6 to 12 carbon atoms having a benzene or naphthalene nucleus, or a radical of from 5 to 12 carbon atoms having a pyridine nucleus, or R.sub.1 and R.sub.2 together form a linear or branched alkylene radical of from 3 to 12 carbon atoms in which one of the carbon atoms of the chain may be replaced by an oxygen atom, all of the above radicals being unsubstituted or substituted by one or more atoms or groups such as chlorine, bromine, fluorine, or iodine atoms or hydroxy, ether, carboxylic acid, carboxylic amide or ester, nitrile, nitro, or sulphonic acid or amide groups, or one of the two radicals R.sub.1 and R.sub.2 may be a hydrogen atom, and in which R.sub.3 and R.sub.4, which may be identical or different, represent a hydrogen atom, a linear alkyl or cycloalkyl radical of from 3 to 12 carbon atoms, in which one of the carbon atoms of the cycloalkyl radical may be replaced by an oxygen atom, or an aromatic hydrocarbon radical of from 6 to 12 carbon atoms or R.sub.3 and R.sub.4 together represent a linear or branched alkylene radical of from 3 to 11 carbon atoms, the above radicals being unsubstituted or substituted by atoms or groups such as chlorine, bromine, fluorine, ethylenic groups, nitro, hydroxy, alkoxy, or carboxylic acid or ester radicals , which comprises reacting a primary or secondary amine of the formulaWherein R.sub.1 and R.sub.2 are as defined above, ammonia, and a carbonyl compound of the formulaWherein R.sub.3 and R.sub.4 are as defined above, with a peroxide compound.
    • 本发明涉及制备式R 1 R 3 ANGLE NN = C ANGLE(I)R 2 R 4的腙的方法,其中可以相同或不同的R 1和R 2表示1至12个碳原子的直链烷基,支链 具有3至12个碳原子的烷基或环烷基,具有苯或萘核的6至12个碳原子的芳族基团或具有吡啶核的5至12个碳原子的基团,或者R 1和R 2一起形成 具有3至12个碳原子的直链或支链亚烷基,其中链中的一个碳原子可以被氧原子代替,所有上述基团都是未取代的或被一个或多个原子或基团取代,例如氯 ,溴,氟或碘原子或羟基,醚,羧酸,羧酰胺或酯,腈,硝基或磺酸或酰胺基,或两个基团R 1和R 2之一可以是氢原子,其中 R3和R4可以相同或相同 不同的是氢原子,具有3-12个碳原子的直链烷基或环烷基,其中环烷基的一个碳原子可以被氧原子取代,或6-12的芳族烃基 碳原子或R3和R4一起表示具有3至11个碳原子的直链或支链亚烷基,上述基团是未取代的或被诸如氯,溴,氟,烯基,硝基,羟基,烷氧基, 或羧酸或酯基,其包括使式WHEREIN R 1和R 2如上所定义的伯胺或仲胺与氨过氧化合物与式WHEREIN R 3和R 4如上定义的羰基化合物反应。
    • 10. 发明授权
    • Catalytic synthesis of azines from H.sub.2 O.sub.2 /NH.sub.3 /carbonyl
compounds
    • 来自H 2 O 2 / NH 3 /碳化合物的AZINES的催化合成
    • US5239119A
    • 1993-08-24
    • US797356
    • 1991-11-25
    • Jean-Pierre SchirmannPierre Tellier
    • Jean-Pierre SchirmannPierre Tellier
    • B01J31/04C07B61/00C07C249/16C07C251/08C07C251/88
    • C07C249/16
    • Azines are synthesized from aqueous hydrogen peroxide, ammonia and a carbonyl compound, e.g., acetone, methyl ethyl ketone or methyl isobutyl ketone, in the presence of a catalytically effective amount of immixture of an amide of a weak acid and an ammonium salt corresponding to such weak acid. A more general high output such process comprises (a) interreacting aqueous hydrogen peroxide, ammonia and a carbonyl compound in the presence of a catalytically effective amount of immixture comprising an amide of a weak acid, (b) separating the azine thus produced from the medium of reaction, (c) reconstituting the amount of the amide in the medium of reaction to the initial amount thereof present at the onset of step (a), and (d) recycling such reconstituted medium of reaction to step (a).
    • 在催化有效量的弱酸和对应于此的铵盐的酰胺的混合物的存在下,由过氧化氢水,氨和羰基化合物(例如丙酮,甲基乙基酮或甲基异丁基酮)合成氮杂 弱酸。 更一般的高产量,这种方法包括(a)在催化有效量的包含弱酸酰胺的混合物存在下,使过氧化氢,氨和羰基化合物反应,(b)将由此产生的吖嗪与介质分离 的反应,(c)将反应介质中的酰胺量与步骤(a)开始时的初始量重构,和(d)将这种重新配制的反应介质再循环到步骤(a)。