EP 0096619 A1 19831221 - Corrosion-inhibiting means and compositions containing them.
Title (en)
Corrosion-inhibiting means and compositions containing them.
Title (de)
Korrosionsinhibierendes Mittel und dieses enthaltende Zusammensetzungen.
Title (fr)
Nouveau moyen inhibiteur de corrosion et composition le renfermant.
Publication
Application
Priority
FR 8209426 A 19820528
Abstract (en)
[origin: CA1202169A] PATENT APPLICATION entitled : Anticorrosion means and composition containing same. In the name of : UNION CHIMIQUE ET INDUSTRIELLE DE l'OUEST This invention relates to a corrosion inhibitor for protecting metallic surfaces which are in contact with water, in particular circuits, apparatus and devices which use water as energetic or thermic fluid, said corrosion inhibitor being a fluorophosphate compound selected from the group consisting of: (i) compound of the formula M2IPO3F, XH2O (ii) compound of the formula LiMIPO3F, xH2O (iii) compound of the formula NaMIPO3F, xH2O (iv) compound of the formula MIIPO3F, xH2O (v) compound of the formula M2IMII(PO3F)2, xH2O (vi) compound of the formula MIPO2F2, xH2O (vii) compound of the formula MII(PO2F2)2, xH2O (wherein MI is Na, K, Rb, Cs or HN4; MII is Mg, Ca, Ba, Sr, Zn, Cd, Mn, Ni or Co; and x is an integer or a fractional number comprised between 0 and 6) and (viii) mixtures thereof.
Abstract (fr)
La présente invention a trait à un nouveau moyen inhibiteur de corrosion aqueuse appartenant à la famille des fluorophosphates et choisi parmi l'ensemble constitué par (i) les composés de formule M2<I>PO3F, xH2O (ii) les composés de formule LiM<I>PO3F, xH2O (iii) les composés de formule NaM<I>PO3F, xH2O (iv) les composés de formule M<II>PO3F, xH2O (v) les composés de formule M2<I>M<I>I(PO3F2), xH2O (vi) les composés de formule M<I>PO2F2, xH2O (vii) les composés de formule M<II>(PO2F2)2, xH2O (dans lesquelles M<I> est Na, K, Rb, Cs ou NH4; M<II> est Mg, Ca, Ba, Sr, Zn, Cd, Mn, Ni ou Co; et x est un nombre entier ou fractionnaire compris entre 0 et 6), et, (viii) leurs mélanges. Selon l'invention, on préconise une composition aqueuse renfermant un moyen inhibiteur sus-visé, en association, le cas échéant, avec une polyamine, un polyélectrolyte organique polymérique, un dérivé d'acide alkylènepolyphosphonique, un dérivé d'acide aminoalkylènepolyphosphonique ou un de leurs mélanges.
IPC 1-7
IPC 8 full level
C23F 11/08 (2006.01); C23F 11/14 (2006.01); C23F 11/16 (2006.01); C23F 11/167 (2006.01); C23F 11/173 (2006.01); C23F 11/18 (2006.01)
CPC (source: EP US)
C23F 11/08 (2013.01 - EP US); C23F 11/141 (2013.01 - EP US); C23F 11/1676 (2013.01 - EP US); C23F 11/184 (2013.01 - EP US)
Citation (search report)
- [YD] FR 2352895 A1 19771223 - DIVERSEY FRANCE [FR]
- [YD] FR 2192192 A1 19740208 - BETZ LABORATORIES [US]
- [YD] FR 2231777 A1 19741227 - CALGON CORP [US]
- [A] FR 49888 E 19390822 - SOC GEN MAGNESIUM
- [XP] JOURNAL OF APPLIED ELECTROCHEMISTRY, vol. 13, no. 3, mai 1983, pages 317-323
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0096619 A1 19831221; EP 0096619 B1 19870121; AT E25113 T1 19870215; AU 1485683 A 19831201; AU 559671 B2 19870319; AU 7454687 A 19871008; CA 1202169 A 19860325; DE 3369349 D1 19870226; FR 2527643 A1 19831202; FR 2527643 B1 19850927; JP H032234 B2 19910114; JP S58213884 A 19831212; US 4613450 A 19860923; ZA 833824 B 19840229
DOCDB simple family (application)
EP 83401050 A 19830526; AT 83401050 T 19830526; AU 1485683 A 19830519; AU 7454687 A 19870619; CA 429083 A 19830527; DE 3369349 T 19830526; FR 8209426 A 19820528; JP 9164183 A 19830526; US 71591885 A 19850325; ZA 833824 A 19830526