Process for stabilizing aqueous zeolite suspensions using a linear fatty alcohol polyglycol ether having a specific degree of ethoxylation

US5501817A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Ditmar Kischkel · Monheim, DE
• Karl Schmid · Mettmann, DE
• Andreas Syldath · Goldkronach, DE
• Thomas Krohnen · Goldkronach, DE

Key dates

• Filing date: Aug 10, 1994
• Grant date: Mar 26, 1996
• Expiry date: Aug 10, 2014

Classification

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

Abstract

A method for stabilizing aqueous zeolite suspensions by adding fatty-alcohol poly(ethylene glycol) ethers of the formula R.sup.1 O--(CH.sub.2 CH.sub.2 O).sub.n in which R.sup.1 is a linear aliphatic alkyl group containing 12 to 14 carbon atoms and n is an average number of from 4.2 to 4.8. Aqueous slurries containing from 20 to 60% by weight of zeolite are stabilized by adding it to the slurry from 0.1 to 5% by weight of the fatty-alcohol poly(ethylene glycol) ethers.