公开(公告)号：DE19520269A1

公开(公告)日：1996-12-05

申请号：DE19520269

申请日：1995-06-02

Applicant: BASF AG

Inventor： KROENER RUDI DR ,  MARTISCHIUS FRANZ-DIETER DR ,  BRATSCHKOW STEFAN ,  OPPENLAENDER KNUT DR ,  KNAUF WOLFGANG DR ,  MAHR NORBERT DR ,  KALIMULIN A A ,  RIGALOV N A ,  UMUTBAEV N A ,  HVALEVA D A

IPC: C09K8/035 ,  C09K8/54 ,  C09K15/30 ,  C23F11/14 ,  C07C231/02 ,  C07C233/36 ,  C07D233/16 ,  C07D239/06 ,  C09K7/02 ,  C09K15/22

Abstract: Corrosion inhibitor contains: (A) 2-98 wt.% of a condensation product of diethylenetriamine or dipropylene triamine with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2.5, which has been partially converted into corresponding ammonium salts; and (B) 0-70 wt.% organic solvent. The novelty is that the inhibitor further contains (C) 2-98 wt.% of a condensation product, as corrosion inhibitor, of an amine mixt. of: (a) 20-70 wt.pts. N-(2-aminoethyl)ethanolamine; (b) 30-80 wt.pts. polyamines of formula: H2N-(CH2)m-NHn-H (where m = 2 or 3; and n = 3-8); and (c) 0-20 wt.pts. further aliphatic amines, with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2. An alternative corrosion inhibitor is also claimed.