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US 6,403,840 B1Granted
Process for synthesizing olefin oxides
AssigneeGRT, Inc.
InventorsXiao Ping Zhou, Galen D. Stucky, Jeffrey H. Sherman
Life of this patent
Estimating the term…
Abstract
Olefin bromohydrins and/or alkane dibromides are reacted with metal oxide to form olefin oxides. The metal bromide is converted to form the original metal oxide and bromine, both of which are recycled.
Claims55
A method for synthesizing olefin oxides comprising:
- providing a quantity of a reactant selected from the group including bromohydrins and alkane dibromides;
- reacting the selected reactant with a metal oxide and thereby forming olefin oxide and a metal bromide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide;
- and
- recycling the bromine.
3 more elements
A method for converting an olefin to is corresponding olefin oxide comprising:
- providing a quantity of an olefin;
- providing a quantity of bromine;
- providing a quantity of water
- reacting the olefin with bromine/H2O and thereby forming the corresponding olefin bromohydrin;
- reacting the olefin bromohydrin with a metal oxide and thereby forming the corresponding olefin oxide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide;
- and
- recycling the bromine.
6 more elements
A method for converting an olefin to its corresponding olefin oxide comprising:
- providing a quantity of an olefin;
- providing a quantity of bromine;
- reacting the olefin with the bromine and thereby forming the corresponding alkane dibromide;
- reacting the alkane dibromide with a metal oxide and thereby forming the corresponding olefin oxide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide;
- and
- recycling the bromine.
5 more elements
A method for synthesizing olefin oxides from alkanes comprising:
- providing a quantity of an alkane selected from the group including ethane, propane, butane, isobutane, pentanes, cyclohexane and hexanes;
- providing a quantity of bromine;
- reacting the selected alkane and the bromine and thereby forming the corresponding alkane dibromide;
- reacting the alkane dibromide with a metal oxide and thereby forming olefin oxide and a metal bromide;
- recovering the thus formed olefin oxide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide;
- and
- recycling the bromine.
6 more elements
A method for synthesizing olefin oxides from olefins comprising:
- providing a quantity of an olefin selected from the group including ethylene, propylene butylene, pentenes, cyclohexene and hexenes;
- providing a quantity of bromine;
- providing a quantity of water
- reacting the selected olefin and bromine/H2O and thereby forming the corresponding olefin bromohydrin;
- reacting the olefin bromohydrin with a metal oxide and thereby forming olefin oxide and a metal bromide;
- recovering the thus formed olefin oxide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide catalyst;
- and
- recycling the bromine.
7 more elements
A method for synthesizing propylene oxide from propane comprising:
- providing a quantity of propane;
- providing a quantity of bromine;
- reacting the propane and the bromine and thereby forming 1,2-dibromopropane;
- reacting the 1,2-dibromopropane with a metal oxide and thereby forming propylene oxide and a metal bromide;
- recovering the thus formed propylene oxide;
- converting the metal bromide to form the original metal oxide and bromine;
- recycling the metal oxide catalyst;
- and
- recycling the bromine.
6 more elements
Dependencies are inferred from the claim text.