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    TWO-STAGE PROCESS FOR THE HYDROGENATION OF MALEIC ACID TO 1,4-BUTANEDIOL
    2.
    发明申请
    TWO-STAGE PROCESS FOR THE HYDROGENATION OF MALEIC ACID TO 1,4-BUTANEDIOL 审中-公开
    将马来酸氢化成1,4-丁二醇的两阶段方法

    公开(公告)号：WO0218316A3

    公开(公告)日：2002-06-20

    申请号：PCT/US0126765

    申请日：2001-08-27

    Applicant: STANDARD OIL CO

    Inventor： HEPFER ROBERT P ,  MILLER CRAIG T ,  ATTIG THOMAS G ,  NORENBERG GREGORY A ,  BUDGE JOHN R

    IPC: C07D307/33 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C51/36 ,  C07C55/10

    CPC classification number: C07C29/149 ,  C07C31/207

    Abstract: In the process for the conversion of maleic acid to gamma-butyrolactone. 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temper atures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of mal eic acid in the feedstream and the first hydrogenation zone does not exceed about 130 DEG C, thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics.

    Abstract translation: 在马来酸转化为γ-丁内酯的过程中。 在1,4-丁二醇和/或四氢呋喃中，包含马来酸的原料流在第一氢化区中氢化以产生包含琥珀酸和未反应的氢的反应产物，然后将其供应到第二氢化区，其中琥珀酸转化成1,4 - 丁二醇中，控制包含马来酸和第一加氢区的进料流的温度，使得进料流和第一加氢区中的丙二酸的温度不超过约130℃，由此使 马来酸和延长反应器寿命并改善整个过程的经济性。

    PROCESO DE DOS ETAPAS PARA LA HIDROGENACION DE ACIDO MALEICO A 1,4-BUTANODIOL.
    3.
    发明专利
    PROCESO DE DOS ETAPAS PARA LA HIDROGENACION DE ACIDO MALEICO A 1,4-BUTANODIOL. 未知

    公开(公告)号：MXPA03001648A

    公开(公告)日：2004-04-02

    申请号：MXPA03001648

    申请日：2001-08-27

    Applicant: STANDARD OIL CO

    Inventor： HEPFER ROBERT P

    IPC: C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07D307/33 ,  C07C51/36 ,  C07C55/10

    Abstract: La presente invencion se refiere a un proceso para la conversion de acido maleico en gamma-butirolactona, 1,4-butanodiol y/o tetrahidrofurano, en donde una corriente de alimentacion que comprende acido maleico se hidrogena en una primera zona de hidrogenacion, para producir un producto de reaccion que comprende acido succinico e hidrogeno que no haya reaccionado, el cual se suministra despues a una segunda zona de hidrogenacion, en donde el acido succinico se convierte en 1,4-butanodiol, y las temperaturas de la corriente de alimentacion que comprenden acido maleico, y de la primera zona de hidrogenacion, se controlan de manera tal que la temperatura del acido maleico en la corriente de alimentacion y la primera zona de hidrogenacion, no exceden aproximadamente 130¦C, por lo cual se minimizan los efectos corrosivos del acido maleico, y se prolonga la vida del reactor, y se mejoran los aspectos economicos de todo el proceso.

    7.
    发明专利
    未知

    公开(公告)号：TR200200030T2

    公开(公告)日：2002-11-21

    申请号：TR200200030

    申请日：2000-05-31

    Applicant: STANDARD OIL CO

    Inventor： TROTT LOUIS R ,  GUSTAFERRO ROBERT A ,  HEPFER ROBERT P ,  MILLER CRAIG T ,  CARLSSON STIG AXEL ,  CLOSE BENJAMIN W

    IPC: B01J8/18 ,  B01J8/24 ,  B01J19/00 ,  C07C253/24 ,  C07C255/08

    Abstract: A sparger includes a conduit for conducting an oxygen feed, a nozzle connected to the conduit for passage of the oxygen feed from the conduit to the outside of the sparger, the nozzle including an orifice and a shroud, and insulation surrounding the conduit and also the shroud substantially the full length of the shroud. A method is provided for producing acrylonitrile via propane ammoxidation, comprising introducing propane and ammonia feeds into a fluid bed of a fluid bed reactor, and introducing an oxygen feed into the fluid bed through at least one insulated and jacketed sparger nozzle for reacting with at least one of the propane feed and ammonia feed in the presence of a fluid bed catalyst.

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