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10 条记录 (耗时 0.012 秒)

    Isomer enrichment of 1 4-cyclohexanediamine
    2.
    发明授权
    Isomer enrichment of 1 4-cyclohexanediamine 失效
    异环己烯-1-环己基四氢呋喃的生成

    公开(公告)号：US3657345A

    公开(公告)日：1972-04-18

    申请号：US3657345D

    申请日：1969-10-27

    申请人： DU PONT

    发明人： BRAKE LOREN D

    IPC分类号： C07C85/16

    CPC分类号： C07C211/18

    摘要： A MIXTURE OF THE STEREOISOMERS OF 1,4-CYLCOHEXANEDIAMINE NOT AT EQUILIBRIUM IS CONVERTED TO A MIXTURE OF STEREOISOMERS APPROACHING THE EQUILIBRIUM RATIO BY HEATING THE MIXTURE OF STEREOISOMERS TO A TEMPERATURE OF FROM 150* TO 300*C. IN THE PRESENCE OF HYDROGEN AT A PRESSURE OF FROM 50 TO 5,500 POUNDS PER SQUARE INCH AND A TOTAL PRESSURE OF FROM 500 TO 15,000 POUNDS PER SQUARE INCH, IN THE PRESENCE OF FROM 0% TO 200% BY WEIGHT, BASED ON THE WEIGHT OF DIAMINE, OF ADDED AMMONIA, AND IN THE PRESENCE OF FROM 0.001% TO 10% BY WEIGHT, BASED ON THE WEIGHT OF DIAMINE AND CALCULATED AS METALLIC RUTHENIUM, OF A RUTHENIUM CATALYST SUPPORTED ON AN INERT CARRIER, SAID CATALYST BEING ALKALI MODERATED WITH FROM 0.05% TO 15% OF A BASIC ALKALI METAL COMPOUND CALCULATED AS THE ALKALI METAL. EITHER ESSENTIALLY PURE TRANS-1,4-CYCLOHEXANEDIAMINE OR ENRICHED CID-1,4CYCLOHEXANEDIAMINE CAN BE RECOVERED.

    Isomer enrichment of bicyclohexyl-4,4{40 -diamine
    5.
    发明授权
    Isomer enrichment of bicyclohexyl-4,4{40 -diamine 失效
    异麦芽酮糖-4,4（40-DIAMINE）的异构体富集

    公开(公告)号：US3679746A

    公开(公告)日：1972-07-25

    申请号：US3679746D

    申请日：1969-10-27

    申请人： DU PONT

    发明人： BRAKE LOREN D

    IPC分类号： B01J23/58 ,  B01J23/63 ,  C07C87/40

    CPC分类号： B01J23/63 ,  B01J23/58

    摘要： A mixture of the stereoisomers of bicyclohexyl-4,4''-diamine not at equilibrium is converted to a mixture of stereoisomers approaching the equilibrium ratio by heating the mixture of stereoisomers to a temperature of from 150* to 300* C. in the presence of hydrogen at a pressure of from 50 to 5,500 pounds per square inch gage and a total pressure of from 500 to 15,000 pounds per square inch gage, in the presence of from 0 to 200 percent by weight of added ammonia and from 0.001 to 10 percent by weight, calculated as metallic ruthenium, of a ruthenium catalyst supported on an inert carrier, both percentages being based on the weight of a starting material, said catalyst being alkali moderated with from 0.05 to 15 percent of a basic alkali metal compound calculated as the alkali metal. Either essentially pure trans,trans-bicyclohexyl-4,4''-diamine or an enriched mixture of cis,trans- and cis,cis-bicyclohexyl-4,4''-diamine can be recovered.

    摘要翻译： 未平衡的双环己基-4,4'-二胺的立体异构体的混合物通过将立体异构体的混合物加热至150℃至300℃的温度而转化为接近平衡比的立体异构体的混合物， 在0至200重量％的加入的氨和0.001至10重量％的存在下，在50至5,500磅/平方英寸计的压力和500至15,000磅/平方英寸计的总压力下， 重量，以金属钌计，负载在惰性载体上的钌催化剂，这两个百分数均以原料重量为基准，所述催化剂为碱缓和的碱性碱金属化合物的0.05至15％ 金属。 可以回收基本上纯的反式，反式双环己基-4,4'-二胺或顺式，反式和顺式，顺式 - 双环己基-4,4'-二胺的富集混合物。

    Alkali moderation of supported ruthenium catalysts
    8.
    发明授权
    Alkali moderation of supported ruthenium catalysts 失效
    支持的碱性催化剂的碱性化研究

    公开(公告)号：US3697449A

    公开(公告)日：1972-10-10

    申请号：US3697449D

    申请日：1970-12-14

    申请人： DU PONT

    发明人： BRAKE LOREN D

    IPC分类号： B01J23/58 ,  B01J11/08 ,  B01J11/22

    CPC分类号： B01J23/58

    摘要： SUPPORTED RUTHENIUM CATALYSTS ARE MODERATED WITH AN ALKALI METAL HYDROXIDE OR ALKOXIDE BY MIXING THE SUPPORTED CATALYST AND THE ALKALI METAL COMPOUND IN THE REACTION MEDIUM OF A HYDROGENATION PROCESS WHICH MAY CONTAIN UP TO 5% OF WATER, AT A TEMPERATURE RANGING FROM ABOUT 30*C TO ABOUT 300*C. THE MODERATED CATALYST IS AN EFFECTIVE HYDROGENATION CATALYST FOR THE HYDROGENATION OF AROMATC AMINES TO THE CORRESPONDING SATURATED CYCLIC AMINES.

    Catalytic hydrogenation of nitrogen containing compounds over supported ruthenium catalysts
    9.
    发明授权
    Catalytic hydrogenation of nitrogen containing compounds over supported ruthenium catalysts 失效
    含有负载的催化剂的含氮化合物的催化氢化

    公开(公告)号：US3644522A

    公开(公告)日：1972-02-22

    申请号：US3644522D

    申请日：1969-04-04

    申请人： DU PONT

    发明人： BRAKE LOREN D ,  STILES ALVIN B

    IPC分类号： B01J23/40 ,  B01J23/46 ,  C07C85/14

    CPC分类号： B01J23/462 ,  B01J23/40

    摘要： ORGANIC AROMATIC NITROGEN CONTAINING COMPOUNDS, SUCH AS P-PHENYLENEDIAMINE OR 4,4''-METHYLENEDIANILINE, CAN BE HYDROGENATED BY ADMIXING THE COMPOUNDS WITH HYDROGEN AT A HYDROGEN PARTIAL PRESSURE OF AT LEAST 200 P.S.I., A TOTAL PRESSURE OF FROM 200 P.S.I. TO 15,000 P.S.I., A TEMPERATURE IN THE RANGE OF FROM 100*C. TO 300*C. IN THE PRESENCE OF FROM 0% TO 200% BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOUND TO BE HYDROGENATED, OF ADDED AMMONIA, AND IN THE PRESENCE OF FROM 0.001% TO 10% BY WEIGHT, BASED ON THE COMPOUND TO BE HYDROGENATED AND CALCULATED AS METALLIC RUTHENIUM, OF A RUTHENIUM CATALYST SUPPORTED ON AN INERT CARRIER SELECTED FROM THE GROUP CONSISTING OF CALCIUM CARBONATE, RARE EARTH OXIDES, RARE EARTH CARBONATES, MIXED RARE EARTH OXIDE-CARBONATES, AND MIXTURES THEREOF.