Valerie Fleming Bell

US Patent:

6340433, Jan 22, 2002

Filed:

Sep 15, 2000

Appl. No.:

09/663828

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Richard M. Jacubinas - Somerville NJ
Jacqueline S. Curran - Cranford NJ
Valerie A. Bell - Edison NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01D 6100

US Classification:

210651, 210640, 210650, 21050025, 95 45, 95 52, 96 6

Abstract:

Aqueous streams containing organic and/or inorganic contaminants are purified by the removal of the contaminant by contacting the aqueous stream with a membrane formed from a porous, crystalline titanium silicate.

US Patent:

6379436, Apr 30, 2002

Filed:

Apr 12, 2000

Appl. No.:

09/548045

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Tadeusz W. Langner - Linden NJ
Jacqueline S. Curran - Cranford NJ
Valerie A. Bell - Edison NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01D 5304

US Classification:

96125, 96130, 502 81, 502 83

Abstract:

Sodalite is treated with acid to transform the surface to provide a highly macroporous material that demonstrates water swing capacities exceeding those of high performance, low temperature desiccants under high latent load at relatively high ambient temperature and humidities.

US Patent:

6395067, May 28, 2002

Filed:

Sep 15, 2000

Appl. No.:

09/663827

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Valerie A. Bell - Edison NJ
Richard M. Jacubinas - Somerville NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01D 5322

US Classification:

95 47, 95 49, 95 51, 95 52, 95 54, 96 4, 96 11

Abstract:

Porous titanium silicate molecular sieves are produced in the form of a membrane capable of separating fluid molecular mixtures.

US Patent:

6413492, Jul 2, 2002

Filed:

Mar 23, 2000

Appl. No.:

09/533606

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Tadeusz W. Langner - Linden NJ
Jacqueline S. Curran - Cranford NJ
Valerie A. Bell - Edison NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C01B 3902

US Classification:

423700, 423712, 423716, 423DIG 21, 423DIG 24

Abstract:

The present invention relates to a method of forming an aluminosilicate zeolite having a Si/Al1. 1. The method comprises forming a reaction mixture by mixing a source of silica, and a source of aluminum in an aqueous alkaline solution having a pH of at least 12. 0, wherein the Si/Al of said mixture is greater than 1.

US Patent:

6416732, Jul 9, 2002

Filed:

Mar 23, 2000

Appl. No.:

09/533707

Inventors:

Jacqueline S. Curran - Cranford NJ
Valerie A. Bell - Edison NJ
Steven M. Kuznicki - Whitehouse Station NJ
Tadeusz W. Langner - Linden NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C01B 3902

US Classification:

423700, 423712, 423DIG 21, 423DIG 24

Abstract:

Aluminosilicate zeolites are formed in a novel reaction medium which contains a silicate source and an aluminum source in an aqueous alkaline solution and which reaction medium further includes an additional electrolyte salt. The addition of the electrolyte salt provides nucleation sites for the zeolite so as to form very small crystals. In high silica reaction environments, it is possible to form high aluminum zeolites which contain occluded silicate and wherein the morphology of the zeolites comprise macroscopic aggregates of microcrystalline zeolites. The addition of the electrolyte salt can also decrease the reaction time or temperature needed for crystallization.

US Patent:

6451283, Sep 17, 2002

Filed:

Mar 23, 2000

Appl. No.:

09/533771

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Tadeusz W. Langner - Linden NJ
Jacqueline S. Curran - Cranford NJ
Valerie A. Bell - Edison NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C01B 3902

US Classification:

423716, 423712, 423DIG 21, 423DIG 24

Abstract:

This invention relates to zeolitic molecular sieve compositions and hybrid zeolite-silica compositions characterized by novel morphology in which the zeolite is present as macroscopic aggregates of microcrystalline zeolite. The zeolitic compositions of this invention have outstanding capability to complex multivalent cations, especially calcium due to the high exchange kinetics of the microcrystalline zeolite component and yet have the ease of handling due to the macroscopic aggregate assemblage.

US Patent:

6517611, Feb 11, 2003

Filed:

Jul 23, 2001

Appl. No.:

09/911031

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Valerie A. Bell - Edison NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01D 53047

US Classification:

95144, 95 50, 95 96, 95145, 585818, 585820

Abstract:

Separation of ethylene from ethane is achieved by feeding a mixture of the C hydrocarbons in contact with a CTS-1 crystalline titanium silicate molecular sieve which has a controlled pore size to selectively adsorb ethylene and size exclude ethane. The feed stream can also contain acetylene which can be selectively adsorbed from both ethane and ethylene by further controlling the pore size of the CTS-1 molecular sieve. Propane/propylene separation is also disclosed.

US Patent:

6572776, Jun 3, 2003

Filed:

Dec 14, 2000

Appl. No.:

09/737063

Inventors:

Steven M. Kuznicki - Whitehouse Station NJ
Valerie A. Bell - Edison NJ
Tadeusz W. Langner - Maplewood NJ
Jacqueline S. Curran - Cranford NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C02F 142

US Classification:

210670, 210687

Abstract:

A method of water softening utilizes macrocrystalline aggregates consisting essentially of submicron crystals of aluminosilicate zeolite. The aggregates have a size of greater than 5 microns and are used in a static bed water softening device. Both regenerable and disposable water softening materials can be provided.