1
William H Gerdes, Charles Lim, Thomas Szymanski: Catalyst for the reduction of oxides of nitrogen. Norton Company, Rufus M Franklin, April 5, 1988: US04735927 (51 worldwide citation)

A catalyst for the selective reduction of nitrogen oxides to nitrogen in the presence of ammonia in the form of composite bodies formed from a mixture of anatase (5 to 40% by weight), a zeolite (50 to 90%), a bond material (0 to 30%, and, optionally, promoter selected from oxides of vanadium, molybd ...


2
William H Gerdes, Donald J Remus, Thomas Szymanski: Method of making porous catalyst carrier without the addition of pore forming agents. Norton Checmical Process Products Corporation, David Bennett, March 31, 1998: US05733842 (31 worldwide citation)

An improved catalyst carrier is formed by a process that comprises the use of ceramic particle components with particle sizes chosen to ensure that a desired degree of porosity is obtained without recourse to the use of organic burnout materials.


3
William H Gerdes, Charles Lim, Thomas Szymanski: Catalyst for the reduction of oxides of nitrogen. Norton Company, Rufus M Franklin, April 5, 1988: US04735930 (29 worldwide citation)

A catalyst for the selective reduction of nitrogen oxides to nitrogen in the presence of ammonia in the form of composite bodies formed from a mixture of zirconia (5 to 50% by weight), a zeolite (50 to 90%), a bond material (0 to 30%), and, optionally, a promoter selected from oxides of vanadium and ...


4
William H Gerdes, Donald J Remus, Thomas Szymanski, James A Wolford: Catalyst carrier. Norton Chemical Process Products, David Bennett, January 24, 1995: US05384302 (26 worldwide citation)

A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process has excellent crush resistance while retaining good porosity and catalytic performance.


5
Thomas Szymanski, Donald J Remus, John R Lockemeyer, Randall Clayton Yeates, William H Gerdes: Catalyst carriers. Saint Gobain Norpro Corporation, Fay Sharpe Fagan Minnich & McKee, December 14, 2004: US06831037 (25 worldwide citation)

The selectivity and activity of a silver-based olefin epoxidation catalyst is found to be a function of the pore size distribution in the alumina carrier on which it is deposited. Specifically it is found advantageous to provide a carrier which has a minimum of very large pores, (greater than 10 mic ...


6
William H Gerdes, Donald J Remus, Thomas Szymanski: Catalyst carrier. Norton Chemical Process Products, David Bennett, April 30, 1996: US05512530 (21 worldwide citation)

A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process and titania has excellent crush resistance while retaining good porosity and catalytic performance.


7
Thomas Szymanski, Stephen M Turner: Raghouse bag design for simultaneous particulate capture and chemical reaction. Norton Company, Arthur A Loiselle Jr, October 17, 1989: US04874586 (13 worldwide citation)

Bag for receiving a gas stream containing solid particulate and undesirable gaseous components, consisting of inner and outer tubular porous walls arranged coextensively to define a space between them, which space is divided at discrete intervals into compartments containing solid particles of chemi ...


8
Thomas Szymanski, Kenneth R Butcher, Donald J Remus: Alumina particles. Norton Company, David Bennett, August 28, 1990: US04952389 (12 worldwide citation)

Essentially spherical particles are disclosed of at least 98.5% alumina having a surface area less than about 1 m.sup.2 /g, an attrition resistance of less than about 0.3 weight percent/hour in an air jet attrition test, a particle size of about 30 to about 110 microns, a tap density of about 1.3 to ...


9
Thomas Szymanski, Steven A Rolando, David M Gough, Gerald S Bennett: Titania-based catalyst carriers. Norton Chemical Process Products, David Bennett, January 16, 1996: US05484757 (10 worldwide citation)

Advantageous titania based catalyst carriers for use in applications requiring a balance of surface area and crush strength can be obtained by using as the starting material a titania hydrate pulp with a surface area above about 200 m.sup.2 /g and an LOI of from about 15% to about 40% by weight.


10
William Herman Gerdes, John Robert Lockemeyer, Donald James Remus, Thomas Szymanski, Randall Clayton Yeates: Catalyst, a process for preparing the catalyst and a process for the production of an olefin oxide, a 1,2-diol, a 1,2 diol ether, or an alkanolamine. Shell Oil Company, December 27, 2011: US08084390 (7 worldwide citation)

A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1.3 m2/g, a median pore diameter of more than 0.8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of ...