EP 0891414 B1 20020213 - PROCESS FOR AUTOMATICALLY ADJUSTING THE pH OF AN AQUEOUS CLEANSING SOLUTION AND SOLID CLEANING AGENTS SUITABLE THEREFOR
Title (en)
PROCESS FOR AUTOMATICALLY ADJUSTING THE pH OF AN AQUEOUS CLEANSING SOLUTION AND SOLID CLEANING AGENTS SUITABLE THEREFOR
Title (de)
VERFAHREN ZUR SELBSTTÄTIGEN VERLAGERUNG DES pH-WERTS EINER WÄSSRIGEN REINIGUNGSMITTELLÖSUNG UND DAFÜR GEEIGNETE FESTE REINIGUNGSMITTEL
Title (fr)
PROCEDE POUR AJUSTER AUTOMATIQUEMENT LE pH D'UNE SOLUTION DE NETTOYANT AQUEUSE ET DETERGENTS SOLIDES CONVENANT A CET EFFET
Publication
Application
Priority
- DE 19612866 A 19960330
- EP 9701470 W 19970322
Abstract (en)
[origin: WO9736984A1] The pH of an aqueous treatment solution is to be automatically adjusted from the acid to the alkaline. This is achieved in that the desired acid pH is set in an aqueous bath with the simultaneous or subsequent addition of an ammonia-generating and/or organic carboxylic acid-consuming enzyme and its substrate, whereupon the enzymatic reaction is allowed to continue until the desired final pH is attained.
IPC 1-7
IPC 8 full level
C11D 3/20 (2006.01); C11D 3/32 (2006.01); C11D 3/386 (2006.01); C11D 17/00 (2006.01)
CPC (source: EP)
C11D 3/2082 (2013.01); C11D 3/323 (2013.01); C11D 3/38636 (2013.01); C11D 3/38654 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
WO 9736984 A1 19971009; AT E213266 T1 20020215; DE 19612866 A1 19971030; DE 59706388 D1 20020321; EP 0891414 A1 19990120; EP 0891414 B1 20020213; ES 2172775 T3 20021001
DOCDB simple family (application)
EP 9701470 W 19970322; AT 97914294 T 19970322; DE 19612866 A 19960330; DE 59706388 T 19970322; EP 97914294 A 19970322; ES 97914294 T 19970322