AN IMPROVED PROCESS FOR THE SYNTHESIS OF FERROSOFERRIC OXIDE (FE3 O4).

摘要

This invention relates to an improved process for the preparation of ferrosoferric oxide (Fe304). Fe3O4 is obtained at room temperature by the process to the present invention and is of cubic crystalline structure. Ferrosoferric oxide is widely used as the catalyst for ammonia synthesis, preparation of various ferrites as well as for diagnostics & therapeutic use which involves magnetic drug targeting for destruction of tumors and stimulation of immuno function. The prior art processes uses either higher temperature or a combination of two or more than two compounds of iron, divalent metal salts or organic complexes to precipitate corresponding hydroxides/oxides. Where as the improved process given under this invention uses only one simple salt of iron at a time to obtain ferrosoferric oxide at room temperature. Hence, the present method is very simple and straightforward and gives ferrosoferric oxide directly at room temperature.