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    • 1. 发明授权
    • Method for producing optically active 1-phenylethylamines
    • 光学活性1-苯基乙胺的制备方法
    • US6034278A
    • 2000-03-07
    • US194719
    • 1998-12-17
    • Walter MerzMartin LittmannUdo KraatzChristoph Mannheims
    • Walter MerzMartin LittmannUdo KraatzChristoph Mannheims
    • C07B53/00C07C209/88C07C211/27C07C211/29C07C209/00
    • C07C209/88
    • The invention concerns a new method for producing optically active 1-phenylethylamines, wherein (a) racemic 1-phenylethylamines are reacted with (S)-(-)-N-phenylcarbamate lactic acid in the presence of an aliphatic or aromatic hydrocarbon and in the presence of a lower aliphatic alcohol, wherein the reaction components are measured so that for every mole of racemic amine, between 0.25 and 0.5 mole of (S)-(-)-N-phenylcarbamate lactic acid are present, the reaction mixture is then concentrated at a liquid-phase temperature of up to 40.degree. C., the resulting solid product is separated, treated with diluted, aqueous alkaline lye in the presence of a hydrocarbon, and the respective (R)-amine is isolated by distillation from the organic phase, and if necessary, (b) the mother liquor remaining after the separation of the solid product is reacted in the presence of a lower aliphatic alcohol with (S)-(-)-N-phenylcarbamate lactic acid, wherein the reaction components are measured so that the molar quantity of (S)-(-)-N-phenylcarbamate lactic acid is twice as great as the quantity of (R)-amine still remaining in the mother liquor, the reaction mixture is then concentrated at a liquid-phase temperature of up to 40.degree. C., the resulting solid product is separated and the (S)-amine is isolated by distillation from the mother liquor.
    • PCT No.PCT / EP97 / 02988第 371日期1998年12月17日第 102(e)日期1998年12月17日PCT提交1997年6月9日PCT公布。 公开号WO97 / 49665 PCT 日期1997年12月31日本发明涉及一种用于制备光学活性1-苯基乙胺的新方法,其中(a)外消旋1-苯乙基胺与(S) - ( - ) - N-苯基氨基甲酸酯乳酸在脂肪族或 芳族烃和低级脂族醇的存在下,其中测量反应组分,使得对于每摩尔外消旋胺,存在0.25至0.5摩尔(S) - ( - ) - N-苯基氨基甲酸酯乳酸, 然后将反应混合物在高达40℃的液相温度下浓缩,分离得到的固体产物,在烃存在下用稀释的碱性碱水溶液处理,分离出(R) - 胺 (b)将固体产物分离后剩余的母液在低级脂族醇与(S) - ( - ) - N-苯基氨基甲酸酯乳酸的存在下反应, 其中测量反应组分 d,使得(S) - ( - ) - N-苯基氨基甲酸酯乳酸的摩尔量是母液中残留的(R) - 胺的量的两倍,然后将反应混合物以液 - 相温度高达40℃,分离得到的固体产物,并通过蒸馏从母液中分离出(S) - 胺。
    • 8. 发明授权
    • Conduit for transporting finely-divided or fine-granular, dry bulk
materials and a process for operation of same
    • 用于运输细碎或细粒状干燥散装材料的管道及其操作过程
    • US4812085A
    • 1989-03-14
    • US815019
    • 1985-12-30
    • Walter Merz
    • Walter Merz
    • B65G53/20B65G53/18
    • B65G53/20
    • A conduit for transporting finely-divided or fine-granular, dry bulk materials comprises a material conveyance zone and a zone for introducing the fluidizing medium separated from the first mentioned zone by a material which is permeable to gas and fluids. This conduit comprises at least one each of a closed feeder channel, a closed fluidizing channel and between these a fluidizing base. It runs approximately horizontal. In and/or above the fluidizing base are impeller nozzles with at least one outlet opening for a gaseous or fluid impeller medium. The fluidizing medium is introduced into the feeder channel/feeder channels at a positive pressure of 100-500 mm water column and the impeller medium at a positive pressure of 700-1500 mm water column.
    • 用于运输细碎或细颗粒干燥散装材料的导管包括材料输送区和用于通过可渗透气体和流体的材料引入从第一所述区域分离的流化介质的区域。 该导管包括封闭的进料通道,封闭的流化通道中的至少一个,并且在这些流化基底之间。 它大致水平运行。 在流化基底内和/或上方是具有用于气态或流体叶轮介质的至少一个出口的叶轮喷嘴。 流化介质以100-500毫米水柱的正压力和叶轮介质在700-1500毫米水柱的正压下被引入进料通道/进料通道。
    • 9. 发明授权
    • Treatment of waste water from the preparation of 6-substituted
3-mercapto-4-amino-1,2,4-triazine-5-ones
    • 从6-取代的3-巯基-4-氨基-1,2,4-三嗪-5-酮的制备中处理废水
    • US4058526A
    • 1977-11-15
    • US685234
    • 1976-05-11
    • Walter MerzGunter Schummer
    • Walter MerzGunter Schummer
    • C07D253/075C07D253/06
    • C07D253/075
    • A process for the treatment of waste water obtained in the condensation of thiocarbohydrazide and an aqueous solution of an .alpha.-keto carboxylic acid such as, e.g., 3,3-dimethyl-2-oxo-butyric acid, which comprises mixing said waste water with a water-immiscible ketone, preferably selected from the group consisting of methyl isobutyl ketone, cyclohexanone and pinacolone, said ketone being employed in an amount sufficient to form two phases, separating said two phases, and discharging as waste the aqueous phase. Advantageously the pH of the waste water is no higher than about 6 and its temperature is 20.degree. to 50.degree. C. The organic phase comprises the ketone containing dissolved therein an adduct of the ketone with thiocarbohydrazide and/or similar amino materials originally present in waste water. The excess of the ketone may be recovered from the organic phase by distillation, or the organic phase may be treated with alkali to effect hydrolysis of such adducts, the ketone separated and recycled and the amino materials recovered.
    • 一种用于处理硫代碳酰肼的缩合得到的废水和α-酮羧酸(例如3,3-二甲基-2-氧代 - 丁酸)的水溶液的方法,其包括将所述废水与 优选选自甲基异丁基酮,环己酮和频哪酮的水不混溶性酮,所述酮的用量足以形成两相,分离所述两相,并以废水的形式排出水相。 有利地,废水的pH不高于约6℃,其温度为20℃至50℃。有机相包含其中溶解有酮与硫代碳酰肼和/或最初存在于废物中的类似氨基物质的加合物的酮 水。 可以通过蒸馏从有机相中回收过量的酮,或者可以用碱处理有机相以进行这种加合物的水解,将酮分离并再循环并回收氨基物质。