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76 条记录 (耗时 0.019 秒)

    Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin
    71.
    发明授权
    Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin 失效
    联合制备3-二烷基氨基丙腈，双（2-氰基乙基）醚和（如果需要）乙烯 - 氰醇

    公开(公告)号：US4965362A

    公开(公告)日：1990-10-23

    申请号：US376373

    申请日：1989-07-06

    申请人： Franz Merger ,  Wolfgang Harder ,  Peter Hettinger ,  Claus-Ulrich Priester ,  Dieter Franz ,  Dieter Voges

    发明人： Franz Merger ,  Wolfgang Harder ,  Peter Hettinger ,  Claus-Ulrich Priester ,  Dieter Franz ,  Dieter Voges

    IPC分类号： C07C253/18 ,  C07C255/12 ,  C07C255/13 ,  C07C255/24

    CPC分类号： C07C255/12 ,  C07C255/13 ,  C07C255/24

    摘要： 3-Dialkylaminopropionitriles ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.4 -alkyl which may furthermore be bonded to form a 5-membered or 6-membered ring, bis-(2-cyanoethyl) ether IINC--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --CN IIand, if desired, ethylenecyanohydrin IIIHO--CH.sub.2 --CH.sub.2 --CN IIIare prepared jointly by a process in which(a) acrylonitrile and water are reacted in the presence of a base at from 60.degree. to 150.degree. C. to give a mixture of acrylonitrile, water and bis-(2-cyanoethyl) ether II, the base being a mineral base, a quaternary nitrogen base or a mixture of these,(b) this mixture is reacted at about 0.degree.-50.degree. C. with a dialkylamine of the general formula IV ##STR2## to give a mixture of water, a dialkylaminopropionitrile I and bis-(2-cyanoethyl) ether II, and this mixture is separated into its components and(c) if desired, the ether II obtained in proces stage (b) or an aqueous solution of this ether and/or the reacted mixtures containing this ether and obtained from process stage (a) or (b) is allowed to react at from 50.degree. to 150.degree. C. with the dialkylamine IV to give a mixture of a 3-dialkylaminopropionitrile I and ethylenecyanohydrin III, and, if desired, the said mixture is separated into its components.

    摘要翻译： 3-二烷基氨基丙腈其中R 1和R 2各自为可以连接形成5元或6元环的C 1 -C 4 - 烷基，双 - （2-氰基乙基）醚II NC-CH 2 -CH 2 - O-CH 2 -CH 2 -CN II和如果需要，乙烯基氰醇III HO-CH 2 -CH 2 -CN III通过以下方法共同制备，其中（a）丙烯腈和水在碱的存在下在60℃至 150℃，得到丙烯腈，水和双 - （2-氰基乙基）醚II的混合物，碱为矿物碱，季氮碱或它们的混合物，（b）该混合物在约0℃ 与二烷基胺（通式IV IV）反应，得到水，二烷基氨基丙腈I和双 - （2-氰基乙基）醚II的混合物，将该混合物分离成其组分，（c ）如果需要，在步骤阶段（b）中获得的醚II或该醚的水溶液和/或含有该醚的反应混合物从工艺步骤（a）或（b）获得， 使其与二烷基胺IV在50-150℃下反应，得到3-二烷基氨基丙腈I和乙基烯丙醇III的混合物，如果需要，将所述混合物分离成其组分。

    Preparation of caprolactam
    72.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号：US4963672A

    公开(公告)日：1990-10-16

    申请号：US448899

    申请日：1989-12-12

    申请人： Franz Merger ,  Rolf Fischer ,  Wolfgang Harder ,  Claus-Ulrich Priester ,  Uwe Vagt

    发明人： Franz Merger ,  Rolf Fischer ,  Wolfgang Harder ,  Claus-Ulrich Priester ,  Uwe Vagt

    IPC分类号： B01J23/46 ,  C07B61/00 ,  C07D201/08 ,  C07D201/16

    CPC分类号： C07D201/08 ,  Y02P20/52

    摘要： Caprolactam is prepared in a process comprising the following steps:(a) reacting the 5-formylvaleric ester with liquid ammonia as reaction medium and hydrogen in the presence of a ruthenium catalyst in liquid phase at from 80.degree. to 140.degree. C. under a hydrogen partial pressure of from 40 to 100 bar,(b) replacing the reaction medium ammonia by an aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is liquid under the reaction conditions,(c) heating the resulting mixture in liquid phase under superatmospheric pressure at 230.degree.-350.degree. C. to form caprolactam, and(d) isolating caprolactam from the resulting reaction mixture.

    摘要翻译： 己内酰胺以包括以下步骤的方法制备：（a）使5-甲酰基戊酸酯与液氨作为反应介质和氢在钌催化剂存在下在液相中在80-140℃下在氢气 分压为40〜100巴，（b）在反应条件下用沸点为80〜240℃的芳烃替代反应介质氨，（c）将所得混合物加热 液相在超大气压下在230-350℃下反应形成己内酰胺，和（d）从所得反应混合物中分离己内酰胺。

    Preparation of ethylene glycol
    73.
    发明授权
    Preparation of ethylene glycol 失效
    乙二醇的制备

    公开(公告)号：US4740525A

    公开(公告)日：1988-04-26

    申请号：US900770

    申请日：1986-08-26

    申请人： Robert Maerkl ,  Werner Bertleff ,  Wolfgang Harder ,  Rudolf Kummer

    发明人： Robert Maerkl ,  Werner Bertleff ,  Wolfgang Harder ,  Rudolf Kummer

    IPC分类号： C07B61/00 ,  B01J31/00 ,  C07C29/158 ,  C07C27/06 ,  C07C31/20

    CPC分类号： C07C29/158 ,  Y02P20/52

    摘要： Ethylene glycol is prepared from carbon monoxide and hydrogen in homogeneous liquid phase under superatmospheric pressure and at elevated temperature in the presence of a rhodium-containing catalyst and in the presence of an organic solvent, the organic solvent used being a C.sub.2 -C.sub.20 -n-alkanol and the concentration of this alkanol, based on the total amount of the mixture, constantly being maintained at not less than 50% by weight.

    摘要翻译： 乙二醇由均一液相中的一氧化碳和氢气在超大气压和升高的温度下在含铑催化剂存在下制备，并且在有机溶剂存在下，所用的有机溶剂是C 2 -C 20正 - 链烷醇和该烷醇的浓度，基于混合物的总量，不断保持在不小于50重量％。