EP 0958403 A1 19991124 - WATER TREATMENT METHOD AS WELL AS EQUIPMENT AND CHEMICAL BRIQUET USED IN THE PROCESS
Title (en)
WATER TREATMENT METHOD AS WELL AS EQUIPMENT AND CHEMICAL BRIQUET USED IN THE PROCESS
Title (de)
WASSERREINIGUNGSVERFAHREN UND -VORRICHTUNG UND DABEI VERWENDETES CHEMISCHES BRIKETT
Title (fr)
PROCEDE D'EPURATION DES EAUX, EQUIPEMENT ET BRIQUETTES CHIMIQUES UTILISES DANS LE PROCEDE
Publication
Application
Priority
- FI 9700443 W 19970708
- FI 962809 A 19960710
- FI 972888 A 19970707
Abstract (en)
[origin: WO9801602A1] The objective of the invention is a water treatment method used to protect from corrosion the water circulation pipework (12) installed in buildings and corresponding, the branch circulation accommodated in the method, and the dosing apparatus (1) being part of the branch circulation, as well as the briquettes (8) containing the relevant chemicals used in the method, which briquettes comprise essentially 40-75 weight fractions of sodium nitrite, 5-25 weight fractions of benzotriazole, 8-18 weight fractions of sodium tetraborate and 5-15 weight fractions of sodium benzoate. The invention relates also to the method of producing said briquettes.
IPC 1-7
IPC 8 full level
C23F 11/08 (2006.01)
CPC (source: EP)
C23F 11/08 (2013.01)
Citation (search report)
See references of WO 9801602A1
Designated contracting state (EPC)
AT DE DK FI GB SE
DOCDB simple family (publication)
WO 9801602 A1 19980115; AU 3347297 A 19980202; EP 0958403 A1 19991124; FI 972888 A0 19970707; FI 972888 A 19980111
DOCDB simple family (application)
FI 9700443 W 19970708; AU 3347297 A 19970708; EP 97929334 A 19970708; FI 972888 A 19970707