| abstract |
In a process for producing an acid-soluble basic zirconium carbonate that can be calcined to a highly disperse oxide powder from pure zirconium salts, zirconium sulfate, Zr (SO4) 2 · 4H2O, or zirconium oxychloride, ZrOCl2 · 8H2O, are reacted with ammoniacal solution, and the basic salts obtained are separated off and separated into the salts obtained transferred basic zirconium carbonate. The carbonization is carried out in an ammoniacal urea solution in order to obtain a precipitate which is easy to filter and wash and to prevent the formation of soluble zirconium carbonate complexes. |