会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明授权
    • Process for the preparation of symmetrical and unsymmetrical azines and
mixtures thereof
    • 制备对称和不对称吖嗪及其混合物的方法
    • US3972876A
    • 1976-08-03
    • US532650
    • 1974-12-13
    • Jean-Pierre SchirmannFrancis Weiss
    • Jean-Pierre SchirmannFrancis Weiss
    • C07C249/02C01B21/16C07C20060101C07C251/88C07C255/45C07C109/00
    • C07C251/88
    • A process is disclosed for the preparation of symmetrical azines of the formulas ##EQU1## and unsymmetrical azines of the formulas ##EQU2## and mixtures of azines (I), (II), and (IV), and (I), (III) and (V), wherein R.sup.1 , R.sup.2, R.sup.3 and R.sup.4 each is hydrogen, a straight-chain alkyl radical of from 1 to 12 carbon atoms, a branched-chain alkyl radical or a cycloalkyl radical of from 3 to 12 carbon atoms or a phenyl radical, the aforesaid radicals being unsubstituted or substituted with a radical which is stable in the medium in which said azines are produced; and in which case R.sup.1 and R.sup.2 can be the same or different radicals, R.sup.3 is a radical different from R.sup.1 and R.sup.2, R.sup.3 and R.sup. 4 are radicals different from each other, and each are different radicals from R.sup.1 and R.sup.2 ; or R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, or R.sup. 3 and R.sup.4 of either or both the >C=N-- moieties together form a cyclic or substituted cyclic radicals of from 3 to 11 carbon atoms in the ring.
    • 公开了用于制备式R1R1的对称吖嗪的方法。R1 = NN = C ANGLE(I)R2R2 R1R1角度C = NN = C角度(II)R3R3 R3R3角度C = NN = C角度(III)R4R4和 (I),(II)和(IV)和(I)的混合物,其中R 1,R 2,R 3,R 3,R 4, ,(III)和(V),其中R 1,R 2,R 3和R 4各自为氢,具有1至12个碳原子的直链烷基,支链烷基或环烷基为3至12 碳原子或苯基,上述基团是未被取代的或被在所述制备所述吖嗪的介质中稳定的基团取代; 在这种情况下,R 1和R 2可以是相同或不同的基团,R 3是不同于R 1和R 2的基团,R 3和R 4是彼此不同的基团,并且各自是不同的R 1和R 2基团; 或者R 1和R 2或R 1和R 3或R 3和R 4中的任一个或两个> C = N-部分一起形成环中具有3至11个碳原子的环状或取代的环状基团。
    • 12. 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。
    • 20. 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)。