B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
260/678, 252/2.C
B01J 29/06 (2006.01) B01J 27/18 (2006.01) B01J 29/40 (2006.01) C07C 2/66 (2006.01) C07C 2/86 (2006.01) C07C 15/02 (2006.01) B01J 29/65 (2006.01) B01J 29/70 (2006.01)
Patent
CA 1195969
ABSTRACT A method is provided for treating modified ZSM-5 type zeolite catalysts with a vapor phase organophosphorus reagent such as trimethylphosphite or dimethylmethylphosphonate in order to improve the para-selective properties of such catalysts for the conversion of aromatic materials. The modified zeolites so treated are those which contain a minor proportion of a difficultly reducible oxide such as magnesium oxide, calcium oxide and/or phosphorus oxide. Such catalyst compositions can be used in alkylation, transalkylation or disproportionation processes to provide alkylated aromatic product mixtures having exceptionally high concentrations of the para-dialkylbenzene isomer.
422218
Forbus Nancy P.
Kaeding Warren W.
Kirby Eades Gale Baker
Mobil Oil Corporation
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