Richard A Noble

US Patent:

6767384, Jul 27, 2004

Filed:

Jan 19, 2001

Appl. No.:

09/766307

Inventors:

Tuan Anh Vu - Boulder CO
Richard D. Noble - Boulder CO
John L. Falconer - Boulder CO

Assignee:

The Regents of the University of Colorado - Boulder CO

International Classification:

B01J 2906

US Classification:

95 45, 502 4, 502 60, 502 64, 502 66, 502 74

Abstract:

Zeolite membranes that can be used to continuously separate components of mixtures are disclosed. The zeolite membranes are prepared by isomorphous substitution, which allows systematic modification of the zeolite surface and pore structure. Through proper selection of the basic zeolite framework structure and compensating cations, isomorphous substitution permits high separation selectivity without many of the problems associated with zeolite post-synthesis treatments. The inventive method for preparing zeolite membranes is alkali-free and is much simpler than prior methods for making acid hydrogen zeolite membranes, which can be used as catalysts in membrane reactors.

US Patent:

7074734, Jul 11, 2006

Filed:

Jun 15, 2004

Appl. No.:

10/868553

Inventors:

Tuan Anh Vu - Boulder CO, US
Richard D. Noble - Boulder CO, US
John L. Falconer - Boulder CO, US

Assignee:

The Regents of The University of Colorado, a body corporate - Boulder CO

International Classification:

B01J 29/06

US Classification:

502 4, 502 60, 502 64, 502 66, 502 74

Abstract:

Zeolite membranes that can be used to continuously separate components of mixtures are disclosed. The zeolite membranes are prepared by isomorphous substitution, which allows systematic modification of the zeolite surface and pore structure. Through proper selection of the basic zeolite framework structure and compensating cations, isomorphous substitution permits high separation selectivity without many of the problems associated with zeolite post-synthesis treatments. The inventive method for preparing zeolite membranes is alkali-free and is much simpler than prior methods for making acid hydrogen zeolite membranes, which can be used as catalysts in membrane reactors.

US Patent:

7316727, Jan 8, 2008

Filed:

Mar 19, 2004

Appl. No.:

10/805183

Inventors:

John L. Falconer - Boulder CO, US
Shiguang Li - Boulder CO, US
Richard D. Noble - Boulder CO, US

Assignee:

The Regents of The University of Colorado - Boulder CO

International Classification:

B01D 53/22

US Classification:

95 51, 95 43, 96 4, 96 10, 96 11, 427426, 4273722, 4274301, 427435

Abstract:

SAPO membranes and methods for their preparation and use are described. The SAPO membranes are prepared by contacting at least one surface of a porous membrane support with an aged synthesis gel. A layer of SAPO crystals is formed on at least one surface of the support. SAPO crystals may also form in the pores of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.

US Patent:

7604129, Oct 20, 2009

Filed:

Oct 3, 2003

Appl. No.:

10/529409

Inventors:

Douglas L. Gin - Longmont CO, US
Meijuan Zhou - Boulder CO, US
Richard D. Noble - Boulder CO, US

Assignee:

The Regents of the Univeristy of Colorado, a body corporate - Denver CO

International Classification:

B01D 39/00
B01D 29/00
C25D 1/08

US Classification:

210490, 21050027, 21050041, 21050038, 205 67, 264 41

Abstract:

The invention provides composite nanofiltration membranes (FIG. ) with lyotropic liquid crystal (LLC) polymer porous membranes () attached to a porous support (). The LLC membranes are prepared from LLC monomers which form the inverted hexagonal or bicontinuous cubic phase. The arrangement, size, and chemical properties of the pores can be tailored on the molecular level. The composite membrane of the invention is useful for separation processes involving aqueous and nonaqueous solutions as well as gases. Methods for making and using the composite nanofiltration membranes of the inventions are also provided.

US Patent:

7718047, May 18, 2010

Filed:

Oct 18, 2005

Appl. No.:

11/252981

Inventors:

Carl A. Koval - Arvada CO, US
Christine E. Evans - Fayetteville AR, US
Richard D. Noble - Boulder CO, US
Mya A. Norman - Springdale AR, US

Assignee:

The Regents of the University of Colorado - Boulder CO

International Classification:

B01D 61/42
B01D 69/00

US Classification:

204518, 204627

Abstract:

The invention provides electrochemically-based methods and devices for producing fluid flow and/or changes in fluid pressure. In the methods and devices of the invention, current is passed through a divided electrochemical cell. Adjacent compartments of the cell are divided by a separator which comprises an ionically conducting separator. Each compartment includes an electrode and an electrolyte solution or ionic liquid. The electrolyte solution(s) or ionic liquid(s) and the ionically conducting separator are selected to obtain the desired relationship between the current through the cell and the fluid flowrate and/or change in fluid pressure.

US Patent:

7828875, Nov 9, 2010

Filed:

Aug 1, 2005

Appl. No.:

11/194515

Inventors:

Shiguang Li - Boulder CO, US
Sara A. Arvidson - Fayetteville NC, US
John L. Falconer - Boulder CO, US
Richard D. Noble - Boulder CO, US

Assignee:

The Regents of the University of Colorado - Denver CO

International Classification:

B01D 59/12

US Classification:

95 51, 95 45, 502 4, 502 86

Abstract:

The present invention provides modified molecular sieve membranes with improved CO/CHseparation selectivity and methods for making such membranes. The molecular sieve membranes are modified by adsorption of a modifying agent, such as ammonia, within and/or on the membrane.

US Patent:

7931824, Apr 26, 2011

Filed:

Jul 3, 2007

Appl. No.:

11/773044

Inventors:

Douglas L. Gin - Longmont CO, US
Jason E. Bara - Boulder CO, US
Richard D. Noble - Boulder CO, US
Xiaohui Zeng - Dublin OH, US

Assignee:

The Regents of The University of Colorado - Denver CO

International Classification:

C09K 19/38
C09K 19/52
C09K 19/54
C07D 403/06
C07D 403/12

US Classification:

25229901, 2522995, 5483127, 5483137, 5483411, 5483415

Abstract:

A modular surfactant architecture based on room temperature ionic liquids (RTILs) has been developed that affords non-polymerizable and polymerizable amphiphiles that form lamellar (L), hexagonal (H) or bicontinuous cubic (Q) LLC phases when mixed with water or RTILs serving as the polar solvent. The amphiphiles are imidazolium salts having two or more imidazolium head groups joined by one or more spacers. Polymerization of the LLC assembly can produce polymeric materials having ordered nanopores, with the ordering of the pores determined by the LLC phase.

US Patent:

8067327, Nov 29, 2011

Filed:

Sep 30, 2010

Appl. No.:

12/894562

Inventors:

Shiguang Li - Boulder CO, US
Sara A. Arvidson - Fayetteville NC, US
John L. Falconer - Boulder CO, US
Richard D. Noble - Boulder CO, US

Assignee:

The Regents of the University of Colorado, a body corporate - Denver CO

International Classification:

B01J 20/28

US Classification:

502 4, 502 86

Abstract:

The present invention provides modified molecular sieve membranes with improved CO/CHseparation selectivity and methods for making such membranes. The molecular sieve membranes are modified by adsorption of a modifying agent, such as ammonia, within and/or on the membrane.