Patent ID: 6332985
Filing Date: 2001-12-25
Classification: A61M,B01D,B01J,Y10S

Abstract:
A process for removing toxins from a fluid selected from the group consisting of a bodily fluid and a dialysate solution, the process comprising contacting the fluid containing the toxins with a microporous ion exchanger at ion exchange conditions thereby removing the toxins from the fluid, the microporous ion exchanger selected from the group consisting of zirconium metallate, titanium metallate and mixtures thereof, the metallates respectively having an empirical formula on an anhydrous basis of:A.sub.p M.sub.x Zr.sub.1-x Si.sub.n Ge.sub.y O.sub.m (I)andA.sub.p M.sub.x Ti.sub.1-x Si.sub.n Ge.sub.y O.sub.m (II)where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, calcium ion, magnesium ion and mixtures thereof, M is at least one framework metal selected from the group consisting of hafnium (4+), tin (4+), niobium (5+), titanium (4+), cerium (4+), germanium (4+), praseodymium (4+), and terbium (4+), except that M is not titanium in formula (II), ""p"" has a value from about 1 to about 20, ""x"" has a value from zero to less than 1, ""n"" has a value from about 0 to about 12, ""y"" has a value from 0 to about 12, ""m"" has a value from about 3 to about 36 and 1.ltoreq.n+y.ltoreq.12.