A process for the preparation of barium sulfate, barium sulfate and barium sulfate using the

In a method for the continuous manufacture of microcrystalline lead sulfate particles barium salt solution are simultaneously contacted with sulphate solution in a precipitation suspension under constant stirring, the precipitation suspension is continuously withdrawn and the barium sulfate precipitate was filtered and washed. platelet- for producing and / or acicular barium sulfate particle has the barium salt solution has a concentration of 0.1 to 0.8 Ba 2+ mol / l and the sulfuric acid has a concentration of 0.1 to 2.0 mol of SO 4 2- / l, wherein the flow rate and the agitation speeds are controlled at constant precipitation volume so that, in the precipitation suspension to a pH 1-9 is present.