Patent · US Active

Methylene aminoethyl sulfonic acid chelating resins

US9079177B2 · kind B2 · utility

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1References

17Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Michael Schelhaas
Pierre Vanhoorne · Monheim, DE
Reinhold Klipper · Neunburg vorm Wald, DE
Georg Martin · Bocholt, DE

Key dates

Filing date	Dec 2, 2010
Grant date	Jul 14, 2015
Priority date	—
Expiry date	Jan 26, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F28/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to chelating resins containing methyleneaminoethylsulfonic acid groups, a process for producing them and also their use for removing heavy metals or metals of value from aqueous solutions having a pH of <4, preferably from process water in or from the electronics industry, the electroplating industry or the mining industry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.