James M Maselli, Age 896413 Amherst Ave, Columbia, MD 21046

4170573, Oct 9, 1979

Apr 7, 1978

5/894316

Michael V. Ernest - Baltimore MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01J 2104
B01J 2310
B01J 2340

252462

A catalyst composition comprising a composite of ceria, lanthana, and alumina and a catalytically-effective amount of one or more platinum group metals deposited on the composite is disclosed. The composite is prepared by depositing a cerium compound on a calcined admixture of the lanthana and the alumina and calcining the composite. The catalyst is capable of operating in the combustion of carbonaceous fuel at high temperatures, e. g. , greater than 2400. degree. F. (1317. degree. C. ), for extended periods of time such as 20 hours with low emissions of carbon monoxide and nitrogen oxides.

4451441, May 29, 1984

Sep 9, 1983

6/523511

Michael V. Ernest - Baltimore MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01D 5336

4232132

Suspended particles in exhaust gases, such as carbon and lead particles in internal combustion engine exhaust gases, are removed by passing the gases through a coarse filter and then through a fine filter. The filters may comprise a ceramic foam material and a catalyst material effective for the conversion of the carbon particles and/or gaseous pollutants in the exhaust gases to innocuous entities may be deposited on the filters.

4426320, Jan 17, 1984

Jun 17, 1982

6/394220

Michael V. Ernest - Baltimore MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01J 2104
B01J 2364
B01J 2372
B01J 3504

502313

Suspended particles in exhaust gases, such as carbon and lead particles in internal combustion engine exhaust gases, are removed by passing the gases through a coarse filter and then through a fine filter. The filters may comprise a ceramic foam material and a catalyst material effective for the conversion of the carbon particles and/or gaseous pollutants in the exhaust gases to innocuous entities may be deposited on the filters.

3957506, May 18, 1976

Sep 11, 1974

5/504466

Joseph Theodore Lundquist - Ellicott City MD
James Michael Maselli - Columbia MD
Dillard Glenn Whitt - Highland MD

W. R. Grace & Co. - New York NY

C22B 1104
C22B 1512

75108

A novel continuous reduction process is disclosed for recovering values of metals having a more positive reduction potential than hydrogen from an aqeuous solution. The process includes the steps of contacting the aqueous solution containing metal value in a reactor with a metal catalyst consisting essentially of Pt or Pd metal dispersed on an inert catalyst support in the presence of a stoichiometric excess of hydrogen substantially dissolved in the aqueous solution to reduce the metal value and deposit free metal on the catalyst, and separating recovered metal value from the catalyst. The catalyst support may comprise electrically conductive particles. In the preferred embodiments, the catalyst consists essentially of about 0. 02 to 1 Wt % Pt on a porous carbon support and the aqueous solution contains gold or copper values. The process may be conducted co-currently in a fixed catalyst bed reactor with the solution containing metal values and dissolved hydrogen flowing upwardly through the catalyst bed at ambient temperature, while maintaining hydrogen partial pressure at least as great as 1 atmosphere.

4510262, Apr 9, 1985

Oct 17, 1983

6/542440

Gwan Kim - Olney MD
Carmo J. Pereira - Columbia MD
Louis Hegedus - Rockville MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01J 2104
B01J 2310
B01J 2358
B01J 3504

502304

An extrudate catalyst suitable for auto emission control is made from a solid, transitional aluminia with a partially hollow interior. Deposited on the extrudate are two promoters, ceria and an alkali metal, and one or more platinum group metals. The preferred alkali metal is in the oxide form as lithia. The cylindrical extrudate has internal reinforcing vanes or ribs extending from the inner wall to the center of the extrudate particle. This configuration permits the catalyst to have the large geometric surface area per reactor volume yet, because of the openings inside the extrudate, the catalyst particles do not exhibit a large pressure drop when packed in a deep bed. These catalysts provide greater hydrocarbon and carbon monoxide conversions than do similar size spherical particles and they have improved light-off characteristics.

4541996, Sep 17, 1985

Nov 13, 1984

6/670192

Carmo J. Pereira - Columbia MD
Louis Hegedus - Rockville MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01D 5336

4232135

An extrudate catalyst suitable for auto emission control is made from a solid, transitional alumina. It has a partially hollow interior and one or more platinum group metals deposited on the extrudate. The cylindrical extrudate has internal reinforcing vanes or ribs extending from the inner wall to the center of the extrudate particle. This configuration permits the catalyst to have the large geometric surface area per reactor volume yet, because of the openings inside the extrudate, the catalyst particles do not exhibit a large pressure drop when packed in a deep bed. These catalysts provide greater hydrocarbon and carbon monoxide conversions than do similar size spherical particles and they have improved light-off characteristics.

3932309, Jan 13, 1976

Jun 5, 1974

5/476505

James Richard Graham - Columbia MD
Michael Vance Ernest - Baltimore MD
James Michael Maselli - Ellicott City MD

W. R. Grace & Co. - New York NY

B01J 2702

252439

A process for preparing a catalyst that has improved activity and efficiency for conversion of hydrocarbons is disclosed. The catalyst is prepared by applying sulfito complexes have the emperical formula M. sub. 6 (x) (SO. sub. 3). sub. 4 where M is H+ NA+, K+ or NH. sub. 4 + and x is platinum, palladium or mixtures thereof. In addition, the compounds M. sub. 2 (x) (SO. sub. 3). sub. 2 and M. sub. 2 (x) (SO. sub. 3). sub. 2 also have utility in our process. The complex salt is impregnated onto a support and activated by calcination in air or heating in a reducing atmosphere.

4541995, Sep 17, 1985

Nov 13, 1984

6/670511

Gwan Kim - Olney MD
Carmo J. Pereira - Columbia MD
Louis Hegedus - Rockville MD
James M. Maselli - Columbia MD

W. R. Grace & Co. - New York NY

B01D 5336

4232135

An extrudate catalyst suitable for auto emission control is made from a solid, transitional alumina with a partially hollow interior. Deposited on the extrudate are two promoters, ceria and an alkali metal, and one or more platinum group metals. The preferred alkali metal is in the oxide form as lithia. The cylindrical extrudate has internal reinforcing vanes or ribs extending from the inner wall to the center of the extrudate particle. This configuration permits the catalyst to have the large geometric surface area per reactor volume yet, because of the openings inside the extrudate, the catalyst particles do not exhibit a large pressure drop when packed in a deep bed. These catalysts provide greater hydrocarbon and carbon monoxide conversions than do similar size spherical particles and they have improved light-off characteristics.