Patent ID: 7812185

Claim:
A process of preparing an α,ω-functionalized olefin and a co-product α-olefin comprising: (a) contacting in a first reaction zone an α-functionalized internal olefin and an α-olefinic monomer having three or more carbon atoms in the presence of a first metathesis catalyst under reaction conditions sufficient to prepare a first effluent stream comprising an α,ω-functionalized olefin, an unfunctionalized internal olefin, unconverted α-functionalized internal olefin, and unconverted α-olefinic monomer having three or more carbon atoms, and optionally, α,ω-difunctionalized internal olefinic dimer; (b) introducing the first effluent stream from step (a) into a first separation zone and recovering therefrom an α,ω-functionalized olefin stream, an unfunctionalized internal olefin stream, an unconverted α-functionalized internal olefin stream, a first output α-olefinic monomer stream, the monomer having three or more carbon atoms, and optionally, an α,ω-difunctionalized internal olefinic dimer; (c) contacting in a second reaction zone a portion of the unfunctionalized internal olefin stream with ethylene in the presence of a second metathesis catalyst under reaction conditions sufficient to prepare a second effluent stream comprising α-olefinic monomer having three or more carbon atoms, unconverted unfunctionalized internal olefin, and unconverted ethylene; (d) introducing the second effluent stream from step (c) into a second separation zone under conditions sufficient to obtain a second output α-olefinic monomer stream, the monomer having three or more carbon atoms, an unconverted ethylene stream, and an unconverted unfunctionalized internal olefin stream; and (e) removing a portion of the first and/or second output α-olefinic monomer stream as product and cycling the balance of the first and second output α-olefinic monomer streams to the first reaction zone in step (a).