IMPROVEMENTS IN THE PROCESS FOR PRODUCING WATER SUSPENDED MASS OF IMPROVED FILTERABILITY AND WATER SUSPENDED MASS SO PRODUCED.

摘要

We claim: 1. Process for producing a water suspended swellable mass of inorganic materials of improved filterability, which comprises incorporating in said mass filtration aids constituted by one or more compounds selected from the group consisting of cation active polyamines, polyamide amines and guanidine derivatives of formula I of the accompanying drawings, where the first R stands for a hydrogen atom, the second R for a hydrogen atom,-CN,-CO-NH, NH/3/|/or-C=NH, the third R for a hydrogen atom, a lower alkyl or hydroxyalkyl or a mononuclear aryl group, the fourth R for a hydrogen atom or a substituted or unsubstituted amino group which is bound through a lower alkylene group and may form part of a heterocyclic ring, and the fifth R for a substituted or unsubstituted amino group which is bound through a lower alkylene group and may form part of a heterocyclic ring.