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    Process for the preparation of propylene glycol carbonate
    1.
    发明授权
    Process for the preparation of propylene glycol carbonate 失效
    制备丙二醇碳酸酯的方法

    公开(公告)号：US5449791A

    公开(公告)日：1995-09-12

    申请号：US251456

    申请日：1994-05-31

    申请人： Paul Wagner ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch

    发明人： Paul Wagner ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch

    IPC分类号： C07B61/00 ,  C07C68/04 ,  C07C69/96 ,  C07D317/36 ,  C07D317/38

    CPC分类号： C07D317/36 ,  Y02P20/142

    摘要： A process is described for the catalytic preparation of propylene glycol carbonate (PGC) by reacting propylene oxide (POX) and CO.sub.2 in PGC as reaction medium at elevated temperature and elevated pressure and separating off from the catalyst the PGC formed. The process is carried out continuously under adiabatic temperature conditions. Per unit of time, PGC as reaction medium flows into the reactor at 7 to 350 times the amount of the PGC formed per unit of time. At all points of the reactor a CO.sub.2 excess is maintained over the other reaction partner POX. Of the effluent reaction mixture, 80 to 98% by weight are returned to the entrance of the reactor, while the remainder is worked up to give PGC. The sensible heat of the reaction product resulting from the adiabatic temperature conditions can be used for the work-up.

    摘要翻译： 描述了通过在PGC中将环氧丙烷（POX）和CO 2作为反应介质在升高的温度和升高的压力下反应制备丙二醇碳酸酯（PGC）的方法，并从形成的PGC与催化剂分离。 该过程在绝热温度条件下连续进行。 每单位时间，作为反应介质的PGC以每单位时间形成的PGC的量的7〜350倍流入反应器。 在反应器的所有点上，超过另一个反应配偶体POX的CO 2过剩。 在流出物反应混合物中，80-98重量％返回到反应器的入口，其余部分被处理得到PGC。 由绝热温度条件产生的反应产物的显热可用于后处理。

    Reactor and continuous process to be carried out therewith for the preparation of ethylene glycol carbonate and propylene glycol carbonate
    3.
    发明授权
    Reactor and continuous process to be carried out therewith for the preparation of ethylene glycol carbonate and propylene glycol carbonate 失效
    用于制备乙二醇碳酸酯和丙二醇碳酸酯的反应器和连续方法

    公开(公告)号：US5508442A

    公开(公告)日：1996-04-16

    申请号：US251229

    申请日：1994-05-31

    申请人： Paul Wagner ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch

    发明人： Paul Wagner ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch

    IPC分类号： C07C68/04 ,  C07C69/96 ,  C07D317/36 ,  C07D317/38 ,  C07D321/00 ,  C07D323/00

    CPC分类号： C07D317/36 ,  C07D317/38 ,  Y02P20/142

    摘要： A bubble column reactor is described which is characterized by a slenderness ratio at a ratio of height to diameter of 2 to 50, a feed, at the bottom end of the bubble column, for the ethylene glycol carbonate (EGG) or propylene glycol carbonate (PGC) already present serving as reaction medium, one or more metering sites for the starting materials CO.sub.2 and ethylene oxide (EOX) or propylene oxide (POX) above the feed for the reaction medium, an outlet for the reaction mixture at the top end of the bubble column, a dividing apparatus connected thereto for the reaction mixture flowing off for dividing it into reaction mixture to be taken off and worked up on the one hand and reaction mixture to be recycled on the other hand and additionally a return line to the feed for the reaction mixture to be recycled. This bubble column reactor can be advantageously used in a process for the continuous preparation of EGG or PGC which is carried out in the temperature range from 100.degree. to 200.degree. C., in the pressure range from 5 to 200 bar and at a molar ratio of 1.01 to 1.5 mol of CO.sub.2 per mol of alkylene oxide in EGG or PGC already present as reaction medium in an amount which is 7 to 350 times that of the newly formed EGG or PGC.

    摘要翻译： 描述了泡罩塔反应器，其特征在于高度与直径的比率为2-50的细长比，在气泡塔的底端，乙二醇碳酸酯（EGG）或丙二醇碳酸酯（ PGC）作为反应介质，用于反应介质的进料上方的原料CO 2和环氧乙烷（EOX）或环氧丙烷（POX）的一个或多个测量位点，反应混合物的顶部出口 气泡塔，连接到其上的分离装置，用于将反应混合物流出以将其分离成反应混合物，一方面将其除去和处理，另一方面将反应混合物再循环，另外还有一个到进料的回流管 使反应混合物回收。 该气泡塔式反应器可有利地用于连续制备EGG或PGC的方法中，该方法在100至200℃的温度范围内，压力范围为5至200巴，摩尔比 以EGG或PGC中的环氧烷的摩尔量为1.01〜1.5摩尔，作为反应介质，其量为新形成的EGG或PGC的7〜350倍。

    Process for the preparation of ethylene glycol carbonate
    4.
    发明授权
    Process for the preparation of ethylene glycol carbonate 失效
    制备乙二醇碳酸酯的方法

    公开(公告)号：US5350862A

    公开(公告)日：1994-09-27

    申请号：US984789

    申请日：1992-12-03

    申请人： Paul Wagner ,  Hans-Josef Buysch ,  Alexander Klausener ,  Franz-Josef Mais ,  Christine Mendoza-Frohn

    发明人： Paul Wagner ,  Hans-Josef Buysch ,  Alexander Klausener ,  Franz-Josef Mais ,  Christine Mendoza-Frohn

    IPC分类号： C07B61/00 ,  C07D317/38 ,  C07D317/36

    CPC分类号： C07D317/38

    摘要： A process is described for the catalytic preparation of ethylene glycol carbonate by reaction of ethylene oxide and CO.sub.2 in ethylene glycol carbonate as the reaction medium at elevated temperature and at elevated pressure with work-up by distillation to separate the resulting ethylene glycol carbonate from the catalyst. The process is carried out continuously under adiabatic temperature conditions. Per unit of time, ethylene glycol carbonate as reaction medium runs into the reactor in a amount 10 to 120 times that of ethylene glycol carbonate formed per unit of time. A CO.sub.2 excess over the other reaction partner ethylene oxide is maintained at all sites of the reactor. 80 to 98% by weight of the reaction mixture flowing out is returned to the inlet of the reactor, while the remainder is worked up by distillation to give ethylene glycol carbonate. The sensible heat produced in the reaction product as a result of the adiabatic temperature conditions, is used for the work-up.

    摘要翻译： 描述了通过环氧乙烷和CO 2在乙二醇碳酸酯中作为反应介质在升高的温度和升高的压力下反应制备乙二醇碳酸酯的方法，通过蒸馏进行后处理以将所得的乙二醇碳酸酯与催化剂分离 。 该过程在绝热温度条件下连续进行。 每单位时间，作为反应介质的乙二醇碳酸酯以每单位时间形成的乙二醇碳酸酯的量的10至120倍的量进入反应器。 在反应器的所有位置保持超过其他反应对象环氧乙烷的二氧化碳剩余量。 将流出的反应混合物的80〜98重量％返回到反应器的入口，其余部分通过蒸馏处理得到乙二醇碳酸酯。 作为绝热温度条件的结果，在反应产物中产生的显热用于后处理。

    Process for the preparation of alkylene carbonates
    5.
    发明授权
    Process for the preparation of alkylene carbonates 失效
    制备碳酸亚烷基酯的方法

    公开(公告)号：US5391767A

    公开(公告)日：1995-02-21

    申请号：US976877

    申请日：1992-11-16

    申请人： Franz-Josef Mais ,  Hans-Josef Buysch ,  Christine Mendoza-Frohn ,  Alexander Klausener

    发明人： Franz-Josef Mais ,  Hans-Josef Buysch ,  Christine Mendoza-Frohn ,  Alexander Klausener

    IPC分类号： B01J27/08 ,  C07B61/00 ,  C07D317/36 ,  C07D317/38 ,  C07D317/44 ,  C07D317/46 ,  C07D317/18

    CPC分类号： C07D317/38

    摘要： Alkylene carbonates can be prepared by catalytic reaction of alkylene oxides with carbon dioxide, catalysts which can be regenerated of the formulaa[MX]/b[ZnY.sub.2 ] (III)whereinM denotes an alkali metal,X and Y independently of one another denote chlorine, bromine or iodine anda and b denote fractions or integers in a range from 0.001 to 2being employed.The catalysts (III) can be regenerated by treating with a halogen compound. The halogen compounds which can be used for this purpose belong to the group comprising hydrogen halides, inorganic and organic acid halides, interhalogen compounds and organic halides with mobile halogen.

    摘要翻译： 碳酸亚烷基酯可以通过烯化氧与二氧化碳的催化反应制备，催化剂可以再生成式[MX] / b [ZnY 2]（III），其中M表示碱金属，X和Y彼此独立地表示 氯，溴或碘，a和b表示使用0.001至2范围内的分数或整数。 催化剂（III）可以通过用卤素化合物处理再生。 可以用于此目的的卤素化合物属于包含卤化氢，无机和有机酰卤，卤间化合物和具有可移动卤素的有机卤化物的基团。

    Process for the preparation of a mixture of cyclohexanone and cyclohexanol
    7.
    发明授权
    Process for the preparation of a mixture of cyclohexanone and cyclohexanol 失效
    制备环己酮和环己醇的混合物的方法

    公开(公告)号：US5395976A

    公开(公告)日：1995-03-07

    申请号：US166178

    申请日：1993-12-10

    申请人： Jurgen Scharschmidt ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch ,  Rainer Klotzbucher

    发明人： Jurgen Scharschmidt ,  Christine Mendoza-Frohn ,  Hans-Josef Buysch ,  Rainer Klotzbucher

    IPC分类号： C07C27/04 ,  C07C29/20 ,  C07C35/08 ,  C07C45/00 ,  C07C49/403

    CPC分类号： C07C29/20 ,  C07C45/006 ,  C07C2101/14

    摘要： In the hydrogenation of phenol with H.sub.2 over Pd supported catalysts, the ratio of the products formed, cyclohexanone and cyclohexanol, can be predetermined by specific treatment of the catalysts during the initial activation and regeneration by O.sub.2 pretreatment and H.sub.2 treatment, the following time/temperature conditions being used:a) Cyclohexanone:cyclohexanol=85:15 to 98:2a1) for initial activation, no O.sub.2 pretreatment and H.sub.2 treatment for 50-10 hours at 300.degree.-500.degree. C.;a2) for regeneration, O.sub.2 pretreatment for 30-0.5 hours at 220.degree.-380.degree. C. and H.sub.2 treatment for 2-6 hours at 150.degree.-250.degree. C.;b) Cyclohexanone:cyclohexanol=30:70 to below 85:15b1) for initial activation, O.sub.2 pretreatment for 40-3 hours at 250.degree.-500.degree. C. and H.sub.2 treatment for 2-6 hours at 150.degree.-250.degree. C.;b2) for regeneration, O.sub.2 pretreatment for 30-0.5 hours at 380.degree.-600.degree. C. and H.sub.2 treatment for 2-6 hours at 150.degree.-250.degree. C.

    摘要翻译： 在用Pd负载型催化剂对苯酚进行氢化反应中，形成的产物 - 环己酮和环己醇的比例可以通过催化剂在初始活化和再生过程中通过O2预处理和H2处理，以下时间/温度 使用的条件：a）环己酮：环己醇= 85:15至98:2 a1）初始活化，在300-500℃下不进行O 2预处理和H2处理50-10小时。 a2）用于再生，O2预处理在220-380℃下30-0.5小时，在150-250℃下H2处理2-6小时。 b）环己酮：环己醇= 30:70〜低于85:15 b1）初始活化，在250〜-500℃下进行O 2预处理40-3小时，在150〜250℃下H2处理2-6小时 。 b2）进行再生，在380〜-600℃下进行O 2预处理30〜0.5小时，在150〜250℃下进行H2处理2-6小时。