公开(公告)号：WO2004052842A1

公开(公告)日：2004-06-24

申请号：PCT/US2003/036060

申请日：2003-11-12

Applicant: THE STANDARD OIL COMPANY

Inventor： ROSEN, Bruce, I. ,  FIRTH, Bruce, E.

IPC: C07C253/24

CPC classification number: C07C253/26 ,  C07C253/32 ,  C07C255/08

Abstract: Economical processes are disclosed for recovery and refining of valuable nitrogen-containing organic compounds formed by catalytic oxidation of least one feed compound selected from the group consisting of propane, propylene, isobutane and isobutylene in the presence of ammonia to produce a gaseous. Processes of the invention include quenching the gaseous reactor effluent with an aqueous quench liquid; forming an aqueous solution comprising the corresponding unsaturated mononitrile, hydrogen cyanide and other organic co-products; and using an integrated sequence of distillations and phase separations to recover for recycle of a useful aqueous liquid, and obtain the desired nitrogen-containing products. According to the invention aqueous solutions are fractionated in an integrated system of multi-stage columns while an effective polymerization inhibiting amount of at least one member of a preselected class of p ­-phenylenediamine compounds is maintained therein.

Abstract translation: 公开了经济方法用于在氨的存在下通过催化氧化选自丙烷，丙烯，异丁烷和异丁烯的至少一种进料化合物形成的有价值的含氮有机化合物来回收和精炼以产生气体。 本发明的方法包括用水淬火液淬火气态反应器流出物; 形成包含相应的不饱和单腈，氰化氢和其它有机副产物的水溶液; 并使用一体化的蒸馏和相分离序列来回收有用的含水液体的再循环，并获得所需的含氮产物。 根据本发明，水溶液在多级柱的一体化系统中分级，同时保持有效聚合抑制量的至少一种预选类对苯二胺化合物。

公开(公告)号：EP1567481A1

公开(公告)日：2005-08-31

申请号：EP03781907.5

申请日：2003-11-12

Applicant: THE STANDARD OIL COMPANY

Inventor： ROSEN, Bruce, I. ,  FIRTH, Bruce, E.

IPC: C07C253/24 ,  C07C253/32 ,  C07C255/08

CPC classification number: C07C253/26 ,  C07C253/32 ,  C07C255/08

Abstract: Economical processes are disclosed for recovery and refining of valuable nitrogen-containing organic compounds formed by catalytic oxidation of least one feed compound selected from the group consisting of propane, propylene, isobutane and isobutylene in the presence of ammonia to produce a gaseous. Processes of the invention include quenching the gaseous reactor effluent with an aqueous quench liquid; forming an aqueous solution comprising the corresponding unsaturated mononitrile, hydrogen cyanide and other organic co-products; and using an integrated sequence of distillations and phase separations to recover for recycle of a useful aqueous liquid, and obtain the desired nitrogen-containing products. According to the invention aqueous solutions are fractionated in an integrated system of multi-stage columns while an effective polymerization inhibiting amount of at least one member of a preselected class of p­-phenylenediamine compounds is maintained therein.