John T Malito, 75241 Isleview Dr, Oswego, IL 60543

6352675, Mar 5, 2002

Jun 7, 1999

09/326959

John T. Malito - Oswego IL

Nalco Chemical Company - Naperville IL

C22B 1900

423143, 423101, 423 42, 423 92, 423 50, 423 22

The present invention provides both reagents and a process for removing heavy metals from a caustic fluid stream by the addition of reagents which are not corrosive or deleterious. Specifically, the present invention is directed to removing heavy metals from a Bayer liquor in an aluminum processing plant. The reagents, dithiocarbamate and dithocarbonate groups, are added individually or in combination thereof to the Bayer liquor for the removal of heavy metals, such as zinc. The reagents form a complex with the heavy metal for the precipitation of the metal from the fluid stream. Once a complex is formed, the Bayer liquor is held in a quiescent state for a period of time sufficient for settling out of solution the precipitate. After settling out of solution, the precipitate is separated and removed and the Bayer liquor is then further processed into alumina.

6527959, Mar 4, 2003

Jan 29, 2001

09/771844

Murat Quadir - Naperville IL
Everett C. Phillips - Batavia IL
Robert P. Mahoney - Newbury MA
John D Kildea - Mandurah, AU
Manian Ramesh - Lisle IL
John T. Malito - Oswego IL

Ondeo Nalco Company - Naperville IL

B01D 2101

210727, 210728, 210730, 210731, 210734, 210735, 423121, 423122

A method of flocculating suspended solids in a Bayer process liquor comprising adding to the liquor an effective amount of a polymer comprising salicylic acid groups.

7067106, Jun 27, 2006

Jun 30, 2003

10/610379

John T. Malito - Oswego IL, US

Nalco Company - Naperville IL

C01F 7/02
C01F 7/46

423629, 423111, 423127, 423130

A composition of matter which is aluminum hydroxide, produced using the Bayer Process, wherein the aluminum hydroxide produced has a Total Organic Carbon of less than about 0. 5 milligrams Total Organic Carbon/gram aluminum hydroxide.

7138472, Nov 21, 2006

Feb 24, 2003

10/373132

Murat Quadir - Scotch Plains NJ, US
Everett C. Phillips - Batavia IL, US
Robert P. Mahoney - Newbury MA, US
John D. Kildea - Mandurah, AU
Manian Ramesh - Barrington Hills IL, US
John T. Malito - Oswego IL, US

Nalco Company - Naperville IL

C08F 220/10

5263285, 526288, 526304, 526306, 526318, 5263181, 526320, 526321, 526326, 524833, 210733, 210735

A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.

7560032, Jul 14, 2009

Aug 17, 2006

11/505651

Murat Quadir - Scotch Plains NJ, US
Everett C. Phillips - Batavia IL, US
Robert P. Mahoney - Newbury MA, US
John D. Kildea - Mandurah, AU
Manian Ramesh - Barrington Hills IL, US
John T. Malito - Oswego IL, US

Nalco Company - Naperville IL

C02F 1/56
B01D 21/01

210733, 210727, 210728, 210730, 210731, 210734, 210735, 526288, 526304, 526306, 526318, 5263181, 526320, 526321, 5263285, 524833

A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.

7776958, Aug 17, 2010

Jun 30, 2004

10/880909

Michael G. Strominger - Dekalb IL, US
John T. Malito - Oswego IL, US
Paul J. Harris - Orland Park IL, US

Nalco Company - Naperville IL

C08L 91/00
C08K 5/10
C08F 2/32

524801, 524313, 524318

The present invention provides an inverse emulsion polymer having a dispersed phase composed of an aqueous solution of an acrylic polymer and a continuous phase composed of an ester of a fatty acid and a water-soluble alcohol. The present invention further includes a method of water treatment which includes adding the inverse emulsion polymer to an industrial water system and hydrolyzing the ester of a fatty acid and a water-soluble alcohol into a fatty acid salt. The inverse emulsion polymer may be used as a flocculant to clarify industrial water systems at elevated temperature and/or elevated pressure and high pH.

7955589, Jun 7, 2011

Jun 23, 2005

11/159467

John T. Malito - Oswego IL, US
James A. Counter - Thirroul New South Wales, AU

Nalco Company - Naperville IL

C01F 7/34

423629, 423111, 423127

An improved method and composition for producing aluminum hydroxide crystals in a Bayer process pregnant liquor, involve the addition of a crystallization modifier comprising a C-Cfatty acid, precursors, salts or blends thereof. The alkyl chain of the fatty acid crystallization modifier is free of functional groups. The modifier yields a commercially in the presence and absence of an hydrocarbon oil which dissolves the fatty acid.

8008430, Aug 30, 2011

Aug 17, 2006

11/505595

Murat Quadir - Scotch PLains NJ, US
Everett C. Phillips - Batavia IL, US
Robert P. Mahoney - Newbury MA, US
John D. Kildea - Mandurah, AU
Manian Ramesh - Barrington Hills IL, US
John T. Malito - Oswego IL, US

Nalco Company - Naperville IL

C08C 1/14

528486, 5253294, 525384, 525386, 528 1, 530410

A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.