Clive J Butler, Age 62Flemington, NJ

6383395, May 7, 2002

Jan 4, 2000

09/477501

Stephen R. Clarke - Orinda CA
Richard J. Clarke - Orinda CA
Roderick Murdock - Canyon CA
Clive J. Butler - Easton PA
Sam Mohanta - Fremont CA

Luxfer Group Limited - Manchester

C02F 128

210683, 210684, 210688, 210226, 210228, 210266, 210282, 210484, 2104931, 210911, 210913, 210915, 210679

A media is used to remove species from aqueous solutions, particularly in the treatment of water to enable it to be suitable for drinking. The media includes a material selected from the group consisting of zirconium hydroxide, titanium hydroxide, hafnium hydroxide and combinations thereof. A preferred form of the media is a layer having an aspect ratio of at least 1:1, more preferably, at least about 10:1. Removed from the water are species selected from the group consisting of arsenate, selenate, chromate, borate, perchlorate, fluoride and combinations thereof. In particular arsenite (As ) containing species are also removed from water. Arsenite may be removed from water to levels not greater than 10 parts per billion with a single exposure to the media. The media is selective for certain species over others. The arsenite component is removed despite a presence of at least one competing species selected from the group consisting of sulphate, phosphate, nitrate, bicarbonate, iron, carbonate, nitrite, silicate, sulphite, chloride, bromide and iodide.

6936175, Aug 30, 2005

Jul 15, 2002

10/195876

Anatoly I. Bortun - Easton PA, US
Clive J. Butler - Easton PA, US

Magnesium Elektron, Inc. - Flemington NJ

C01B025/37
C02F001/42

210681, 210903, 423181, 423308, 423309, 423311

The invention relates to zirconium phosphate of H form which is characterized by a P NMR spectra comprising peaks at −4. 7 ppm, −12. 8 ppm and −17. 0 ppm (all peaks being in a range of 0. 5 ppm). Also featured is a Na form of the material. The zirconium phosphate material is characterized by a unique surface area, pore size distribution and surface morphology, as well as by an affinity for NH ions and moisture insensitivity. Also featured is hafnium phosphate characterized by moisture insensitivity. The zirconium phosphate may be amorphous and possess a framework-type structure. The inventive method of making zirconium phosphate includes the steps of heating an aqueous mixture including a zirconium compound and a phosphorous-containing reagent at a temperature of at least 120 C. to form a reaction product, and treating the reaction product with acid at a temperature of at least 60 C.

6960328, Nov 1, 2005

Jul 15, 2002

10/195630

Anatoly I. Bortun - Easton PA, US
Clive J. Butler - Easton PA, US

Magnesium Elektron, Inc. - Flemington NJ

C01B025/37
B01J027/16
B01J027/18

423139, 210681, 210688, 423306, 423308, 423309, 502208

A zirconium phosphate compound having a Zr:P ratio of from about 1. 80-2. 0 to 1, which compound's H-form exhibits a single peak at −13. 70. 5 ppm in the P NMR spectra. The compound is useful as a catalyst, catalyst support and ion exchange media having a high affinity for cobalt and nickel ions.

7252767, Aug 7, 2007

Jul 15, 2002

10/195875

Anatoly I. Bortun - Easton PA, US
Clive J. Butler - Easton PA, US

Magnesium Elektron, Inc. - Flemington NJ

C01G 25/00

210660, 210685, 210688, 423608, 423 84, 252184, 502300, 502349, 502439

The present invention features a method of making hydrous zirconium oxide having desirable properties, including resistance to moisture content, predetermined particle size, and developed porosity and surface area. The inventive material is suitable for use as an ion exchanger, a catalyst and a catalyst support. The process comprises providing a liquid comprising a zirconium compound and an alkali metal-containing reagent. The alkali metal-containing reagent may comprise a compound selected from the group consisting of MOH-MSO, MOH-MPO, and combinations thereof, where M is at least one of Li, Na and K. The zirconium compound may be treated with the alkali metal-containing reagent effective to form a mixture which achieves an uptake of alkali metal in an amount ranging from 0. 5 to 2. 5 meq/g. The mixture is reacted to form the hydrous zirconium oxide. A molar ratio of SO/Zr and PO/Zr in the mixture may range from 0. 2-0. 7:1.