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
Stephen T Wilson, Brent M Lok, Edith M Flanigen: Crystalline metallophosphate compositions. Union Carbide Corporation, Richard G Miller, January 12, 1982: US04310440 (487 worldwide citation)

A novel family of crystalline, microporous aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular structure-forming template. The family comprises a number of distinct species, each with a unique crystal s ...


3
Robert William Grose, Edith Marie Flanigen: Crystalline silica. Union Carbide Corporation, Richard G Miller, December 6, 1977: US04061724 (282 worldwide citation)

A novel crystalline silica composition having uniform pore dimensions of approximately 6 Angstrom units is prepared by calcining a crystalline hydrated alkylonium silicate prepared hydrothermally from a reaction mixture containing as essential reagents, water, amorphous silica and a quaternary ammon ...


4
Stephen T Wilson, Edith M Flanigen: Crystalline metal aluminophosphates. Union Carbide Corporation, Richard G Miller, January 28, 1986: US04567029 (215 worldwide citation)

Novel class of crystalline microporous metal aluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, one or a mixture of two or more of the metals Mg, Mn, Co and Zn in tetrahedral coordination with oxygen atoms. These compositions are ...


5
Donald W Breck deceased, by Harold Blass executor, Gary W Skeels: Silicon substituted zeolite compositions and process for preparing same. Union Carbide Corporation, Richard G Miller, March 5, 1985: US04503023 (142 worldwide citation)

Aluminum from AlO.sub.4 -tetrahedra of as-synthesized zeolites is extracted and substituted with silicon to form zeolite compositions having higher SiO.sub.2 /Al.sub.2 O.sub.3 molar ratios and exhibiting distinctive chemical and physical properties. The preparative procedure involves contact of the ...


6
Edith M Flanigen, Robert L Patton: Silica polymorph and process for preparing same. Union Carbide Corporation, Richard G Miller, February 14, 1978: US04073865 (124 worldwide citation)

Large crystals of a silica polymorph having a characteristic X-ray diffraction pattern, a specific gravity of 1.70 .+-. 0.05 g/cc. and a mean refractive index of 1.39 .+-. 0.01 after calcination in air at 600.degree. C., are prepared by a hydrothermal process in which fluoride anions are included in ...


7
Ronald Frank Ambrosini, Richard Alan Anderson, Louis Leonard Fornoff, Krishan Dayal Manchanda: Selective adsorption of mercury from gas streams. Union Carbide Corporation, Richard G Miller, July 18, 1978: US04101631 (123 worldwide citation)

Mercury vapor is selectively chemisorbed from gas streams by contact with zeolitic molecular sieves containing elemental sulfur. The selectivity and capacity of the zeolite adsorbent in the process is not affected adversely by the presence of adsorbed water vapor or water vapor in the gas stream bei ...


8
Paul T Barger: Methanol conversion process using SAPO catalysts. UOP, Thomas K McBride, Richard G Miller, March 10, 1992: US05095163 (117 worldwide citation)

Hydrothermal treatment of silicoaluminophosphate molecular sieves at temperatures in excess of about 700.degree. C. for periods sufficient to destroy a large proportion of their acid sites while retaining at least 80 percent of their crystallinity is found to result in a catalyst for converting meth ...


9
Chien C Chao: Process for separating nitrogen from mixtures thereof with less polar substances. UOP, Richard G Miller, August 22, 1989: US04859217 (87 worldwide citation)

The highly lithium exchanged forms of zeolite X, particularly the low silica forms of zeolite X which contain more than ninety equivalent percent lithium cations, have been found to exhibit extraordinary capacities and selectivities for nitrogen adsorption. Such adsorbents are to a surprising degree ...


10
Celeste A Messina, Brent M Lok, Edith M Flanigen: Crystalline ferroaluminophosphates. Union Carbide Corporation, Richard G Miller, November 19, 1985: US04554143 (83 worldwide citation)

Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, ferric and/or ferrous iron in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic ...