EP 0185660 B1 19880203 - STABILIZED AQUEOUS ZEOLITE SUSPENSION
Title (en)
STABILIZED AQUEOUS ZEOLITE SUSPENSION
Publication
Application
Priority
- DE 3330220 A 19830822
- DE 3423351 A 19840625
Abstract (en)
[origin: WO8501039A1] The stabilized system for suspensions prepared from A-type zeolite and water has the following composition: on one hand, a water-insoluble non ionic surfactant such as fatty alcohol polyglycol ether and on the other hand, an anionic sulfate surfactant, particularly sulfuric acid monoesters of primary C12-C18 alcohols respectively secondary C10-C20 alcohols in the form of water-soluble salts, or reaction products based on the sulfated alcohols having reacted with 1 to 4 mol-equivalent of ethylene oxyde, or sulfated fatty acid alkanol amides respectively sulfated fatty acid monoglycerides in the form of water-soluble salts or mixtures thereof, as auxiliary stabilizing means. The proportion by weight between the non ionic surfactant and the anionic surfactant ranges between 5 : 1 and 1 : 5. Quantity used: 0.5 to 5% by weight. Preferably, the pH of the suspension is adjusted by addition of an acid salt to a value lower than 12, particularly between 9 and 11. The suspensions used for the preparation of detergents and lyes with a small content of phosphate or even free of phosphate exhibit a low viscosity during storage and utilization in a temperature range comprised between the room temperature and 80<o>C; they have irreproachable fluidity properties and produce no or hardly any residual deposits.
IPC 1-7
IPC 8 full level
C11D 3/12 (2006.01)
CPC (source: EP KR US)
C11D 3/08 (2013.01 - KR); C11D 3/1286 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR LI
DOCDB simple family (publication)
WO 8501039 A1 19850314; AT E32328 T1 19880215; AU 3215784 A 19850329; DE 3469159 D1 19880310; EP 0185660 A1 19860702; EP 0185660 B1 19880203; ES 535309 A0 19850601; ES 8505550 A1 19850601; FI 853339 A0 19850830; FI 853339 L 19850830; IT 1176619 B 19870818; IT 8422372 A0 19840821; KR 850001800 A 19850401; US 4529541 A 19850716
DOCDB simple family (application)
EP 8400247 W 19840813; AT 84903064 T 19840813; AU 3215784 A 19840813; DE 3469159 T 19840813; EP 84903064 A 19840813; ES 535309 A 19840821; FI 853339 A 19850830; IT 2237284 A 19840821; KR 840005073 A 19840822; US 64313784 A 19840822