Novel reactive derivative of zirconium and its preparation.

摘要

Reactive zirconium derivatives characterised in that they are in the form of a noncrystalline pulverulent white solid, dry in appearance, and consist of metazirconic acid ZrO(OH)2 accompanied by free or weakly bound water, it being possible for a proportion of the OH<-> ions to be replaced by halide ions, the ZrO2 content of these derivatives being from 60 to 92 % by weight inclusive and the water content of these derivatives ranging from 3 to 40 % and it being possible for the halide ion content of these derivatives to range up to approximately 5 % by weight, and a process for their preparation. The solid derivatives of the invention can be easily converted into usual reactive zirconium derivatives by reaction with an aqueous solution of an acid.