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Tessenderlo Kerley, Inc. Receives Two Additional Patents For Magnesium Thiosulfate and Calcium Thiosulfate

Tuesday, April 06, 2010

Phoenix, AZ -- Tessenderlo Kerley, Inc., (TKI) announced today they have received two additional patents for products within their thiosulfate product range.

U.S. Patent # 7,686,963 B2 was issued for the use of magnesium thiosulfate as an ozone quencher and scrubber for use in potable water and waste water streams.

U.S. Patent # 7,494,525 for use of calcium thiosulfate as a urease inhibitor in an agricultural application to improve nitrogen use efficiency (NUE) of UAN and urea solutions when applied together in a concentrated zone.

Dr. Michael Hojjatie and TKI’s Research and Development Group were instrumental in the development and patenting of these applications for this thiosulfate range of products.

Tessenderlo Kerley, Inc. headquartered in Phoenix, Arizona, produces and markets specialty chemical solutions, including fertilizers, crop protection chemicals and process chemicals and services to diverse markets in the United States, Mexico, Central and South America and selected European countries and the United Kingdom. TKI operates 10 manufacturing plants in North America, in addition to an extensive terminal network. ( TKI is a subsidiary of the Tessenderlo Group, Brussels, Belgium.

Tessenderlo Group is an international chemicals group with more than 100 branches in 20 countries. The group is a world and European leader in most of its product areas. Tessenderlo Chemie NV is listed on Eurolist by Euronext Brussels and is part of Next 150 and BEL Mid. (

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