1
Brent M Lok, Celeste A Messina, Robert L Patton, Richard T Gajek, Thomas R Cannan, Edith M Flanigen: Crystalline silicoaluminophosphates. Union Carbide Corporation, Richard G Miller, April 3, 1984: US04440871 (777 worldwide citation)

A novel class of crystalline microporous silicoaluminophosphates is synthesized by hydrothermal crystallization of silicoaluminophosphate gels containing a molecular structure-forming templating agent. The class comprises a number of distinct species, each with a unique crystal structure. The compos ...


2
Maryellen Lavin, Alan P Cohen, Nanette Greenlay, Thomas R Cannan, Richard J Hinchey: Process for drying CH.sub.2 F.sub.2 refrigerant utilizing zeolite. UOP, Thomas K McBride, Richard G Miller, Richard P Silverman, September 20, 1994: US05347822 (15 worldwide citation)

Difluoromethane (R32) is of current interest as a partial replacement for chlorodifluoromethane (R22) refrigerant heretofore widely used in vapor compression refrigeration systems. R32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used ...


3
Brent M Lok, Celeste A Messina, Robert L Patton, Richard T Gajek, Thomas R Cannan, Edith M Flanigen: Hydrocarbon conversions using catalysts silicoaluminophosphates. UOP, Thomas K McBride, Richard G Miller, May 19, 1992: US05114563 (14 worldwide citation)

The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions.


4
Thomas R Cannan, Richard J Hinchey: Synthesis of zeolite beta. UOP, Thomas K McBride, Richard G Miller, August 18, 1992: US05139759 (13 worldwide citation)

Zeolite beta is synthesized hydrothermally from an aqueous reaction mixture containing the conventional reactive sources of SiO.sub.2, Al.sub.2 O.sub.3 and Na.sub.2 O tetraethylammonium halide as the source of the crystallization directing tetraethylammonium ions and diethanolamine as the agent prov ...


5
Thomas R Cannan: Crystalline zeolite LZ-202 and process for preparing same. UOP, Richard G Miller, June 20, 1989: US04840779 (12 worldwide citation)

The crystalline omega-type zeolite LZ-202 can be prepared by a novel process that eliminates the prior art requirement of a templating agent. Unlike prior art omega-type zeolites, the as-synthesized form is totally ion-exchangeable and can be enriched with silicon by treatment with ammonium fluorosi ...


6
Alex J Caglione, Thomas R Cannan, Nanette Greenlay, Richard J Hinchey: Process for preparing low silica forms of zeolites having the faujasite type structure. UOP, Thomas K McBride, Richard G Miller, Frank S Molinaro, November 22, 1994: US05366720 (6 worldwide citation)

Low silica forms of faujasite-type zeolites are prepared from more siliceous forms of the same zeolite species by contacting the starting zeolite with a highly caustic concentrated sodium aluminate solution at elevated temperatures. In view of the fact that the process does not favor the formation o ...


7
Brent M Lok, Thomas R Cannan, Edith M Flanigen: Zeolite LZ-133. UOP, Richard G Miller, June 27, 1989: US04842836 (2 worldwide citation)

A novel crystalline aluminosilicate composition denominated "zeolite LZ-133" or simply "LZ-133" and having uniform pore dimensions of approximately 4.3 Angstroms is prepared hydrothermally from a reaction mixture containing as essential reagents, water, alkali or alkaline earth metal oxide, alumina, ...


8
Thomas R Cannan: Regeneration of spent zeolite compositions. UOP, John G Tolomei, Frank S Molinaro, March 26, 2002: US06362122 (1 worldwide citation)

A process for regenerating spent zeolite composites. The process involves contacting the composite, either as a shaped article or a fine powder, with a caustic solution, e.g., sodium hydroxide at treating condition. Once the contacting is completed, the composite is isolated, washed with water, drie ...


9
Richard J Hinchey, Thomas R Cannan: Process for synthesizing zeolite-betafite by use of diethanolamine in reaction mixture. UOP, WU DAJIAN, June 23, 1993: CN92114686

Zeolite beta is synthesized hydrothermally from an agueous reaction mixture containing the conventional reactive sources of SiO2, Al2O3 and Na2O tetraethylammonium halide as the source of the crystallization directing tetraethylammonium ions and diethanolamine as the agent providing the increased ba ...