Granular adsorbent

US4707290A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Wolfgang Seiter · Neuss, DE
• Otto Koch · Leichlingen, DE

Key dates

• Filing date: Dec 9, 1985
• Grant date: Nov 17, 1987
• Expiry date: Dec 9, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D11/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a granular adsorbent having a high uptake capacity for liquid ingredients of detergents and cleaning preparations, comprising PA0 (a) 60 to 80 wt. % of a cation-exchanging, synthetic aluminosilicate selected from the group consisting of zeolite A, zeolite X and mixtures thereof, said aluminosilicate containing water of hydration; PA0 (b) 0.05 to 5 wt. % of sodium silicate having a Na.sub.2 O to SiO.sub.2 mol ratio within the range of about 1:2 to about 1:3.5; PA0 (c) 3 to 15 wt. % of a homopolymer of a monomer selected from the group consisting of acrylic acid, methacrylic acid and maleic acid; or a copolymer made by polymerizing a mixture containing at least one of said monomers, and PA0 (d) 8 to 18 wt. % of water removable at a temperature of about 145.degree. C. The adsorbent may optionally include up to 5 wt. % of a nonionic surfactant. The adsorbent has an average particle size within the range of about 0.2 to 1.2 mm, and a bulk density in the range of about 400 to 700 g/l.