Catalyst composition
AssigneeShell Oil Company
InventorJohn Robert Lockemeyer
Life of this patent
Estimating the term…
Abstract
There is provided a catalyst carrier comprising a refractory inorganic material having a sodium solubilization rate no greater than 5 ppmw/5 minutes. There is further a catalyst comprising a refractory inorganic material carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and one or more catalytically reactive metals deposited on said carrier. There is also provided a catalyst suitable for the vapor phase production of alkylene oxide from olefins and oxygen comprising an alumina-based carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and catalytically reactive silver deposited on said carrier.
Claims49
A process for the vapor phase production of epoxides, said process comprising passing a feedstock over a catalyst bed and recovering an epoxide product;
- wherein said catalyst is prepared by a process which comprises:
- selecting a carrier comprising one or more ionizable species which include silicates;
- lowering a concentration of said ionizable species present on a surface of said carrier by a means effective in rendering the ionizable species insoluble;
- and
- depositing silver on said carrier.
A process for the vapor phase production of epoxides, said process comprising passing a feedstock over a catalyst bed and recovering an epoxide product;
- wherein said catalyst is prepared by a process which comprises:
- selecting a carrier comprising one or more ionizable species which include silicates;
- lowering a concentration of said ionizable species present on a surface of said carrier by a means effective in rendering the ionizable species immobile;
- and
- depositing silver on said carrier.
A process for the vapor phase production of epoxides, said process comprising passing a feedstock over a catalyst bed and recovering an epoxide product;
- wherein said catalyst is prepared by a process which comprises:
- selecting a carrier comprising one or more ionizable species which include silicates;
- lowering a concentration of said ionizable species present on a surface of said carrier without the use of aggressive media;
- and
- depositing on said carrier silver and one or more promoters selected from the group consisting of phosphorus, boron, fluorine, lithium, sodium, rubidium, Group IIA through Group VIII metals, rare earth metals, and combinations thereof.
Dependencies are inferred from the claim text.