Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By alkyl transfer – e.g. – disproportionation – etc.
Patent
1991-10-07
1993-03-02
Pal, Asok
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By alkyl transfer, e.g., disproportionation, etc.
C07C 604
Patent
active
051911442
ABSTRACT:
In the process of olefin disproportionation, a feedstock containing predominatly mono-olefin the feedstock is charged at elevated temperature into a catalytic conversion zone in contact with mesoporous acid olefin conversion catalyst under selective olefin interconversion conditions.
The improvement is characterized by a mesoporous acid metallosilicate crystalline catalyst material having Bronsted acid sites in a hexagonal lattice structure, said catalyst material having substantially uniform pores in hexagonal arrangement with a pore size of about 20 to 100 Angstroms units. In the preferred embodiments the olefinic feedstock is reacted for less than 10 seconds in contact with MCM-41 mesoporous metallosilicate catalyst under partial reaction conditions sufficient to provide increased yield of C4 alkene having a ratio of isobutene to normal butenes greater than equilibrium.
REFERENCES:
patent: 3884835 (1975-05-01), Vaughan
patent: 4091079 (1978-05-01), Vaughan
patent: 4673559 (1987-06-01), Derouane et al.
patent: 4791088 (1988-12-01), Chu et al.
patent: 4849186 (1989-07-01), Beech, Jr. et al.
patent: 4880611 (1989-11-01), von Ballmoos et al.
patent: 4969987 (1990-11-01), Le et al.
patent: 5057296 (1991-10-01), Beck
patent: 5098684 (1992-03-01), Kresge et al.
patent: 5102643 (1992-04-01), Kresge et al.
patent: 5104515 (1992-04-01), Chu et al.
patent: 5108725 (1992-04-01), Beck et al.
patent: 5110572 (1992-05-01), Calabro et al.
patent: 5112589 (1992-05-01), Johnson et al.
"An X-Ray structural study of cacoxenite, a mineral phosphate", Paul B. Moore Nature, vol. 306, Nov. 24, 1983.
Le Quang N.
Thomson Robert T.
McKillop Alexander J.
Mobil Oil Corporation
Pal Asok
Speciale Charles J.
Wise L. G.
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