EP 0772674 B1 19980624 - PROCESS FOR PREPARING SURFACTANT GRANULATES
Title (en)
PROCESS FOR PREPARING SURFACTANT GRANULATES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TENSIDGRANULATEN
Title (fr)
PROCEDE DE FABRICATION DE GRANULES DE TENSIOACTIF
Publication
Application
Priority
- DE 4425968 A 19940725
- EP 9502777 W 19950714
Abstract (en)
[origin: WO9603488A1] The invention concerns low dust content surfactant granulates which have increased bulk density but nevertheless dissolve well in water. These granulates can be prepared by a process in which an anionic surfactant or a plurality of anionic surfactants in its/their acid form and a highly-concentrated aqueous alkaline component are acted upon separately by a gaseous medium, are combined, neutralized in a multi-substance nozzle and, under high propellant pressure, are sprayed in a drying tower. The acid and alkaline components are combined in almost stoechiometric amounts and the resultant solid, finely particulate products are conveyed to a mechanical mixer in which the fine particles are agglomerated to form granulates having a bulk density of at least 400 g/l.
IPC 1-7
IPC 8 full level
C11D 11/02 (2006.01); C11D 11/04 (2006.01)
CPC (source: EP)
C11D 11/02 (2013.01); C11D 11/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9603488 A1 19960208; AT E167700 T1 19980715; DE 4425968 A1 19960201; DE 59502656 D1 19980730; DK 0772674 T3 19990406; EP 0772674 A1 19970514; EP 0772674 B1 19980624; ES 2117433 T3 19980801
DOCDB simple family (application)
EP 9502777 W 19950714; AT 95926892 T 19950714; DE 4425968 A 19940725; DE 59502656 T 19950714; DK 95926892 T 19950714; EP 95926892 A 19950714; ES 95926892 T 19950714