The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2008
Filed:
Nov. 06, 2004
Reinhold Klipper, Köln, DE;
Bruno Hees, Langenfeld, DE;
Olaf Halle, Köln, DE;
Wolfgang Podszun, Köln, DE;
Pierre Vanhoorne, Monheim, DE;
Hubertus Mittag, Wolfen, DE;
Wolfgang Zarges, Köln, DE;
Reinhold Klipper, Köln, DE;
Bruno Hees, Langenfeld, DE;
Olaf Halle, Köln, DE;
Wolfgang Podszun, Köln, DE;
Pierre Vanhoorne, Monheim, DE;
Hubertus Mittag, Wolfen, DE;
Wolfgang Zarges, Köln, DE;
LANXESS Deutschland GmbH, Leverkusen, DE;
Abstract
The present invention relates to novel ion exchangers comprising carboxyl groups and also —(CH)NRRgroups having improved exchange kinetics and selectivity, a method for their production and also use thereof for the adsorption of metals, in particular arsenic, when these are additionally loaded with iron oxide/iron oxyhydroxide.