Stephen M Schmidt

US Patent:

6395403, May 28, 2002

Filed:

Jul 6, 2001

Appl. No.:

09/899900

Inventors:

Stephen Raymond Schmidt - Silver Spring MD

International Classification:

B01J 2713

US Classification:

428570, 428550, 502301, 502325, 502337, 427305, 427306

Abstract:

A novel precious metal doped porous metal catalyst is disclosed. The precious metal is present in from 0. 01 to 1. 5 weight percent and distributed throughout the particles of porous metal to provide a surface to bulk ratio distribution of not greater than 60. The present invention is further directed to a process of forming said doped catalyst and to improved processes of catalytic hydrogenation of organic compounds.

US Patent:

6429337, Aug 6, 2002

Filed:

Jul 6, 2001

Appl. No.:

09/899902

Inventors:

Stephen Raymond Schmidt - Silver Spring MD

Assignee:

W. R. Grace Co.-Conn. - Columbia MD

International Classification:

C07C20900

US Classification:

564423

Abstract:

A novel precious metal doped porous metal catalyst is disclosed. The precious metal is present in from 0. 01 to 1. 5 weight percent and distributed throughout the particles of porous metal to provide a surface to bulk ratio distribution of not greater than 60. The present invention is further directed to a process of forming said doped catalyst and to improved processes of catalytic hydrogenation of organic compounds.

US Patent:

6558533, May 6, 2003

Filed:

Apr 13, 2001

Appl. No.:

09/833602

Inventors:

Stephen Raymond Schmidt - Silver Spring MD
Richard Franklin Wormsbecher - Dayton MD
Robert Hibbard Harding - Mainz, DE

Assignee:

W.R. Grace Co.-Conn - Columbia MD

International Classification:

C10G 2900

US Classification:

208244, 208208 R, 585274, 585276, 585900, 585904, 502 25, 502 28, 502 33, 502517

Abstract:

The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquids that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur free liquid, regeneration of the alloy by contact with an aqueous solution of an oxidant and reusing the alloy for further desulfurization of additional sulfur laden liquid.

US Patent:

6696375, Feb 24, 2004

Filed:

Jun 7, 1995

Appl. No.:

08/485304

Inventors:

William Alan Welsh - Highland MD
Stephen Raymond Schmidt - Silver Spring MD

Assignee:

W. R. Grace Co.-Conn. - Columbia MD

International Classification:

C03C 3704

US Classification:

501 12

Abstract:

An improved flatting agent comprising an inorganic hydrogel having a pore volume of at least 1. 0 ml/g, an average particle size in the range 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4. 75 on the Hegman scale. The inorganic hydrogel flatting agents of this invention are prepared by milling an inorganic hydrogel under controlled temperature conditions wherein a volatiles content of at least 40 weight percent is maintained, to produce inorganic hydrogel particles characterized by a pore volume of at least 1. 0 ml/g, an average particle size in the range of 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4. 75 on the Hegman scale. Also provided in accordance with this invention are improved coating compositions comprising a full gloss coating containing the above described flatting agents dispersed in the full gloss coating in from 3 to 15 weight percent loading on a solids basis.

US Patent:

7375053, May 20, 2008

Filed:

Apr 7, 2003

Appl. No.:

10/408271

Inventors:

Stephen Raymond Schmidt - Silver Spring MD, US

Assignee:

W. R. Grace & Co.- Conn. - Columbia MD

International Classification:

B01J 23/74
B01J 23/00
B01J 21/00
B01J 20/00

US Classification:

502326, 502313, 502314, 502315, 502316, 502318, 502319, 502321, 502327, 502331, 502332, 502333, 502334, 502335, 502336, 502337, 502338, 502339, 502345, 502349, 502350, 502355, 502439, 50252724

Abstract:

Novel nickel and/or cobalt plated sponge based catalysts are disclosed. The catalyst have an activity and/or selectivity comparable to conventional nickel and/or cobalt sponge catalysts, e. g. , Raney nickel or Raney cobalt catalysts, but require a reduced content of nickel and/or cobalt. Catalysts in accordance with the invention comprise nickel and/or cobalt coated on at least a portion of the surface of a sponge support. Preferably, the sponge support comprises at least one metal other than or different from the metal(s) contained in the coating. The method of preparing the plated catalysts, and the method of using the catalysts in the preparation of organic compounds are also disclosed.

US Patent:

7569513, Aug 4, 2009

Filed:

Apr 21, 2008

Appl. No.:

12/148622

Inventors:

Stephen Raymond Schmidt - Silver Spring MD, US

Assignee:

W. R. Grace & Co.-Conn. - Columbia MD

International Classification:

B01J 23/00
B01J 21/00

US Classification:

502326, 502259, 502260, 502313, 502314, 502315, 502316, 502335, 502337, 502439, 50252724

Abstract:

Novel nickel and/or cobalt plated sponge based catalysts are disclosed. The catalyst have an activity and/or selectivity comparable to conventional nickel and/or cobalt sponge catalysts, e. g. , Raney nickel or Raney cobalt catalysts, but require a reduced content of nickel and/or cobalt. Catalysts in accordance with the invention comprise nickel and/or cobalt coated on at least a portion of the surface of a sponge support. Preferably, the sponge support comprises at least one metal other than or different from the metal(s) contained in the coating. The method of preparing the plated catalysts, and the method of using the catalysts in the preparation of organic compounds are also disclosed.

US Patent:

20110011772, Jan 20, 2011

Filed:

Jul 15, 2009

Appl. No.:

12/503457

Inventors:

Stephen Raymond Schmidt - Silver Spring MD, US

International Classification:

C10G 29/04
B01J 23/75
B01J 23/755
B01J 23/72
C10G 17/00
C07C 31/18

US Classification:

208244, 502337, 502325, 502331, 208254 R, 208295, 568852

Abstract:

Novel nickel and/or cobalt plated sponge based catalysts are disclosed. The catalyst have an activity and/or selectivity comparable to conventional nickel and/or cobalt sponge catalysts, e.g., Raney nickel or Raney cobalt catalysts, but require a reduced content of nickel and/or cobalt. Catalysts in accordance with the invention comprise nickel and/or cobalt coated on at least a portion of the surface of a sponge support. Preferably, the sponge support comprises at least one metal other than or different from the metal(s) contained in the coating. The method of preparing the plated catalysts, and the method of using the catalysts in the preparation of organic compounds are also disclosed.

US Patent:

20110313211, Dec 22, 2011

Filed:

Feb 23, 2010

Appl. No.:

13/203264

Inventors:

Stephen Raymond Schmidt - Silver Spring MD, US

International Classification:

C07C 29/132

US Classification:

568861

Abstract:

This invention is a process for making 1,2-propane diol from glycerol. The process comprises subjecting a glycerol stream to hydrogenation conditions in the presence of a transition metal promoted skeletal copper catalyst to enhance selective production of 1,2-propane diol product. Chromium promoted catalyst is preferred for this invention, and moreover, it is preferred that the skeletal copper catalyst is prepared from copper aluminum alloys that have been subjected to leaching conditions selected to achieve at least 40% leaching of aluminum from the alloy. This process is particularly conducive to conducting the hydrogenation with reactant mixture in the liquid phase. The catalysts used in this invention are particularly suitable for use in a fixed catalyst bed, but can be activated and sized so that the catalyst is also suitable for use in slurry based reactions.