公开(公告)号：US20200332423A1

公开(公告)日：2020-10-22

申请号：US16554972

申请日：2019-08-29

Applicant: ECOLAB USA INC.

Inventor： ASHISH DHAWAN ,  JEREMY MOLONEY ,  CARTER M. SILVERNAIL

IPC: C23F11/14

Abstract: Disclosed here are the methods of using one or more multiple charged cationic compounds in a corrosion control composition to reduce corrosion of metal surfaces in a water system. The multiple charged cationic compounds are derived from polyamines through a ring-opening reaction with an epoxide or two reactions: an aza-Michael addition with an activated olefin having a cation group and a ring-opening reaction with an epoxide. The disclosed methods or compositions are found to be effective than those methods or compositions including commonly used corrosion inhibitors for water systems.