The preparation of ferrite powder is to complete the manufacturing process from raw materials to ferrite powder, there are many kinds of ferrite powder manufacturing methods.

(1) Sol-gel method

Sol-gel method is a metal organic or inorganic compounds through the solution, sol, gel and curing, and then heat treatment and oxide or other compound solid method. Sol-gel method is a commonly used method in the preparation of wet chemical methods, widely used in the preparation of ferrite nanomaterials.

(2) chemical coprecipitation

Chemical coprecipitation is a common method of preparing ferrites. It is the use of precipitating agents (such as OH-, CO32-) co-precipitation of metal ions in solution, after filtration, washing, drying, burning and other processes to get the product.

(3) oxide method

Oxide Preparation of ferrite The main point is the raw material mixing, heating, through the reaction between the host material to obtain ferrite powder. In order to effectively promote the solid-phase reaction to obtain uniform, good quality ferrite powder, in addition to pay attention to the choice of raw materials, but also pay attention to the mixing, calcination and grinding conditions identified. Oxide method is a means of large-scale industrial production.