Aqueous stable suspension of water insoluble silicate capable of binding calcium ions and its use for the production of washing and cleansing agents

US4486331A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Manfred Diehl · Frankfurt am Main, DE
• Roland Bergmann · Großkrotzenburg, DE
• Gunter Stadtmuller · Alzenau, DE

Key dates

• Filing date: Mar 15, 1983
• Grant date: Dec 4, 1984
• Expiry date: Mar 15, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/1286
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

There are provided aqueous pumpable stable suspensions of a water insoluble silicate capable of binding calcium ions which contain based on the total weight of the aqueous suspension (A) as the silicate capable of binding calcium 0.5 to 80 weight percent of a finely divided, bound water containing, synthetically produced, water insoluble compound of the general formula EQU (Cat.sub.2/n O).sub.x.Me.sub.2 O.sub.3.(SiO.sub.2).sub.y (I), in which Cat is a cation exchangeable with calcium and which has the valence n, x is a number from 0.7 to 1.5, Me is boron or aluminum and y is a number between 0.8 and 6 and (B) as a dispersingly active component 0.5 to 6 weight percent of a mixture of at least two different alkylphenolethoxylates of the formula ##STR1## where R is an alkyl group of 1 to 15 carbon atoms. The component A especially can be a zeolite A while component B can consist of two alkylphenolethoxylates of formula (II) in which m is 2 to 7 and m is 8 to 15. The suspension can be employed for the production of powdery washing agents and detergents.