EP 0848750 A1 19980624 - PROCESS FOR PRODUCING GRANULATED PRECURSORS OF LOW ALKALINITY DETERGENTS
Title (en)
PROCESS FOR PRODUCING GRANULATED PRECURSORS OF LOW ALKALINITY DETERGENTS
Title (de)
VERFAHREN ZUR HERSTELLUNG GRANULARER VORPRODUKTE NIEDERALKALISCHER REINIGUNGSMITTEL
Title (fr)
PROCEDE DE PREPARATION DE PRODUITS GRANULES PRECURSEURS DE DETERGENTS DE FAIBLE ALCALINITE
Publication
Application
Priority
- DE 19532304 A 19950901
- EP 9603730 W 19960823
Abstract (en)
[origin: DE19532304A1] A process is disclosed for producing granulated precursors of low alkalinity detergents for dish-washing machines that consist of alkaline metal salts of carboxylic acid and organic polycarboxylic acids, so as to counteract the segregating tendency of the finished product. For that purpose, a partial amount of polycarboxylic acid salts is prepared in the usual way, then alkaline carbonate is reacted with the free polycarboxylic acids and their salts, and alkaline hydrocarbonate, at temperatures below 60 DEG C and in the presence of 2 to 12 % by weight water and the alkaline metal salts of the polycarboxylic acids.
IPC 1-7
IPC 8 full level
C11D 1/825 (2006.01); C11D 3/10 (2006.01); C11D 3/20 (2006.01); C11D 7/12 (2006.01); C11D 7/26 (2006.01); C11D 11/04 (2006.01); C11D 17/00 (2006.01); C11D 1/66 (2006.01); C11D 1/72 (2006.01)
CPC (source: EP)
C11D 1/8255 (2013.01); C11D 3/10 (2013.01); C11D 3/2086 (2013.01); C11D 17/0091 (2013.01); C11D 1/662 (2013.01); C11D 1/72 (2013.01)
Citation (search report)
See references of WO 9709411A1
Designated contracting state (EPC)
BE DE ES FR IT
DOCDB simple family (publication)
DE 19532304 A1 19970306; DE 59603641 D1 19991216; EP 0848750 A1 19980624; EP 0848750 B1 19991110; ES 2140894 T3 20000301; WO 9709411 A1 19970313
DOCDB simple family (application)
DE 19532304 A 19950901; DE 59603641 T 19960823; EP 9603730 W 19960823; EP 96930091 A 19960823; ES 96930091 T 19960823