CRYSTALLINE TYPE-A ZEOLITE POWDER

摘要

The present invention provides a crystallinc type-A zeolite powder having the composition 1.0 ? 0.2 M2/nO : Al2O3 : 1.85 ? 0.5 SiO2 ? y H2O, wherein M represents a metal cation, n its valency and y a value of up to 6, and containing 50% by weight of particles of a size below a maximum of 4.0 .mu.m as well as having the following particle spectrum fraction proportion (.mu.m) (% by weight) < 3 35 to 60 < 5 82 to 95 < 10 93 to 99 < 15 96 to 100 The zeolites are useful as phosphate substitutes in washing, rinsing and cleansing agents.