Filtrol Corporation

Harshaw/filtrol Partnership

John C Lim

Michael F Brady

Dennis N Stamires

Adrian P Humphries

Adrian Humphries

Kirk Novak

Ralph M Haney

Warren Huang

Dennis M Stamires

This invention relates to exchanging the sodium contained in a crystalline zeolite by partially removing sodium by exchange with another cation, partially drying the exchanged zeolite and re-exchanging the dried zeolite.

Process for the exchange of crystalline zeolites

This invention relates to a process for production of catalyst substrates and catalysts of calibrated pore size distribution by incorporation in and removal of particles of determined particle size from substrate or catalyst formulations.

Substrates with calibrated pore size and catalysts employing the same

An improvement in abrasion resistance is obtained in zeolite compositions containing alumina and clay in a matrix by employing comminuted zeolites.

Attrition resistant zeolite containing catalyst

This invention relates to improvements in catalysts formed by spray drying water slurries of a faujasite type zeolite of relatively low sodium content in a matrix, containing pseudoboehmite and added anionically derived alumina gel.

Use of additional alumina for extra zeolite stability in FCC catalyst

This invention relates to a method of producing a zeolite containing cracking catalyst by employing a sodium silicate derived silica gel in combination with clay to form a catalyst having a good attrition resistance, low carbon, and hydrogen forming properties.

Zeolite catalysts and method of producing the same

This invention relates to improvements in the processes of exchanging zeolites, particularly zeolites of the faujasite type to reduce their sodium content by a multiple exchange under autogenous superatmospheric pressure.

Method of exchanging sodium zeolite

The catalyst of this invention is composed of an exchanged zeolite of the faujasite type composited with a matrix composed of clay, alumina and silica added as sodium silicate, the added silica being in the range of about 0.5% to less than about 3.5% based on the composite catalyst on a volatile free basis.

Zeolitic catalyst and method of producing same

This invention relates to an improvement in the abrasion resistance of catalysts formulated from a mixture of an exchanged zeolite of the faujasite type, hydrated alumina and ammonium polysilicate or silica sol.

Balanced alumina matrix in zeolite containing catalyst

Attrition resistant zeolitic catalysts containing silica, alumina and clay components.

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Anaheim, CA, United States of America

John C Lim