William Bachop Dolan, Michael J Mitariten: Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas. Engelhard Corporation, Russell G Lindenfeldar, August 26, 2003: US06610124 (83 worldwide citation)

A pressure swing adsorption process for the separation of impurities such as nitrogen and carbon dioxide and recovery of hydrocarbons from a natural gas stream utilizes two separate adsorption systems, the first containing an adsorbent selective for nitrogen, carbon dioxide or both and the second co ...

Olga Korotkikh, Robert J Farrauto, Andrew McFarland: Method for preparation of catalytic material for selective oxidation and catalyst members thereof. Engelhard Corporation, Russell G Lindenfeldar, May 6, 2003: US06559094 (32 worldwide citation)

The invention pertains to the preparation and use of catalytic materials and catalyst members for the selective oxidation of carbon monoxide in a gas stream that contains hydrogen. One such catalyst member may be produced by depositing by electric arc spraying a metal feedstock onto a metal substrat ...

Barry K Speronello, Gerald S Koermer, Appadurai Thangaraj, Ahmad Moini: Massive bodies containing free halogen source for producing highly converted solutions of chlorine dioxide. Engelhard Corporation, Russell G Lindenfeldar, March 2, 2004: US06699404 (27 worldwide citation)

A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichlorois ...

Thomas J Shaniuk: Arsenic removal media. Engelhard Corporation, Russell G Lindenfeldar, February 1, 2005: US06849187 (22 worldwide citation)

Disclosed is a heavy metal removal media containing ferric hydroxide having unique levels of microporosity and mesoporosity/macroporosity, and/or a specific average particle size and/or granule size. The ferric hydroxide is made by simultaneously combining in a vessel at least one iron salt and at l ...

Chandrashekhar Pandurang Kelkar, David Stockwell, Samuel Tauster: reduction composition for use in FCC processes, NO. Engelhard Corporation, Russell G Lindenfeldar, May 16, 2006: US07045485 (19 worldwide citation)

A composition for controlling NOx emissions during FCC processes comprises (i) an acidic oxide support, (ii) cerium oxide, (iii) a lanthanide oxide other than ceria such as praseodymium oxide, and (iv), optionally, an oxide of a metal from Groups Ib and IIb such as copper, silver and zinc.

Jeffrey B Hoke, Ronald M Heck: Catalyst and adsorption compositions having improved adhesion characteristics. Engelhard Corporation, Russell G Lindenfeldar, March 8, 2005: US06863984 (16 worldwide citation)

A composition and method for improving the adhesion properties of catalytic and adsorptive compositions to a substrate through the addition of clay and/or silicone binder is disclosed. Preferably, the composition includes manganese dioxide and attapulgite clay and/or a silicone polymer which is adhe ...

Terence C Poles, William G Rosenberg, John Calcagni: Method and apparatus for treating the atmosphere. Engelhard Corporation, Russell G Lindenfeldar, September 9, 2003: US06616903 (14 worldwide citation)

Method and apparatus for treating the atmosphere to lower the concentration of pollutants, such as ozone, hydrocarbons, nitrogen oxides, sulfur oxides, carbon monoxide and the like, therein in which ambient air is passed into operative contact with a stationary substrate such as an automobile at res ...

Gary M Freeman, John M M Harrison, Kenneth B Files: Coarse particle size kaolin clay and method. J M Huber Corporation, Robert A Koons Jr, Russell G Lindenfeldar, PepperHamilton, December 8, 1998: US05846309 (13 worldwide citation)

A coarse particle kaolin clay is provided having an average Stokes equivalent particle diameter of about 4.5-6.0 microns, a BET surface area of about 8-11 m.sup.2 /g, and preferably having a median Malvern particle size of about 9.0-10.5 microns as determined by laser light-scattering measurement an ...


Jeffrey B Hoke, Fred M Allen, Patrick W Blosser, Zhicheng Hu, Ronald M Heck: Stable slurries of catalytically active materials. Engelhard Corporation, Russell G Lindenfeldar, November 16, 2004: US06818254 (12 worldwide citation)

A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises coating a motor vehicle radiator with pol ...