The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 1978
Filed:
Jun. 30, 1977
Elmar Reinwald, Dusseldorf-Holthausen, DE;
Milan J Schwuger, Haan, DE;
Heinz Smolka, Langenfeld, DE;
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Frankfurt am Main, DE;
Abstract
This invention relates to cation-exchanging, water-insoluble aluminosilicates containing bound water and an ionic surface-active compound resistant to water hardness formers and having, for every mol of Al.sub.2 O.sub.3, from 0.7 to 1.5 mols Cat.sub.2/n O, where Cat is a cation having the valence n, and from 0.8 to 6 mols SiO.sub.2, and being produced by the precipitation of said aluminosilicate in an aqueous solution, wherein said reaction is conducted in the presence of an aqueous solution of said ionic surface-active compound, and optional subsequent crystallization; as well as a process for its preparation and a process for the sequestration of water hardness cations employing said aluminosilicates.