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Featured researches published by John Paul Mcwilliams.


Zeolites | 1991

ZSM-5 zeolites having uniformly large crystals

John Paul Mcwilliams; Catherine Teague Sigal

There is provided an improvement for making large crystallite ZSM-5 zeolites by a method comprising forming the zeolite in a medium containing a combination of tetramethylammonium and tetrapropylammonium cations. The improvement involves the addition of sodium chloride to the aqueous reaction medium to increase the uniformity of crystallite size and to increase the mean crystallite size. Also provided are catalysts comprising these ZSM-5 crystallites and processes for converting organic compounds with these catalysts.


Journal of Molecular Catalysis | 1989

Alkylation of aromatics

Yung-Feng Chu; David Owen Marler; John Paul Mcwilliams


Archive | 1990

Process for preparing long chain alkyl aromatic compounds

Quang N. Le; David Owen Marler; John Paul Mcwilliams; Mae K. Rubin; Joosup Shim; Stephen S. Wong


Archive | 1994

Catalytic system for the reducton of nitrogen oxides

Maria D. Farnos; John Paul Mcwilliams; Sanjay B. Sharma; David S. Shihabi


Archive | 1989

Method for preparing a zeolite catalyst bound with a refractory oxide of low acidity

Robert P. L. Absil; Philip J. Angevine; Joseph A. Herbst; Donald J. Klocke; John Paul Mcwilliams; Scott Han; David S. Shihabi


Archive | 1987

Abatement of NOx in exhaust gases

Sowmithri Krishnamurthy; John Paul Mcwilliams; David A. Pappal; Catherine Teague Sigal; Thomas Richard Kiliany


Archive | 1991

Zeolite synthesis using an alcohol or like molecules

Garry W. Kirker; Donald J. Klocke; James C. Vartuli; Pochen Chu; David Owen Marler; John Paul Mcwilliams


Archive | 1983

Catalyst for alkylation of aromatic hydrocarbons

Charles T. Kresge; John Paul Mcwilliams; James C. Vartuli; Michael P. Nicoletti


Archive | 1993

NOx abatement process

John Paul Mcwilliams; David S. Shihabi; Richard F. Socha; Hye K. C. Timken


Archive | 1994

Selective catalytic reduction of nitrogen oxides using an iron impregnated zeolite catalyst

Maria D. Farnos; John Paul Mcwilliams; Sanjay B. Sharma; David S. Shihabi; Scott A. Stevenson; James C. Vartuli

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