Patent · US Active

Method of scale inhibition

US9108866B2 · kind B2 · utility

0Cited by

9References

11Claims

0Family size

Assignee

ITALMATCH CHEMICALS S.P.A. · IT

Inventors

Patrick Notté · Wavre, BE
Albert Devaux · Mont-Saint-Guibert, BE
Jan H. J. Van Bree · Ottenburg, BE
Tessa Johnson · Gijzegem, BE

Key dates

Filing date	Jun 5, 2013
Grant date	Aug 18, 2015
Priority date	—
Expiry date	Jun 5, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2209/06
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method is disclosed to inhibit scale formation in aqueous systems whereby a threshold amount of a scale inhibiting agent, represented by an aminoacid alkylphosphonic acid, is added to the aqueous system. The aminoacid moiety can be represented by α-species or by species having, at least, two or more carbon atoms between the carboxylic moiety and the amine group. These aminoacid based inhibitors exhibit unusually superior performance and system acceptability compared to leading state-of-the-art inhibitors.

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