Process for manufacture of purified alkaline earth metal carbonate The invention concerns a process for the manufactore of a purified alkaline earth metal carbonate, the purified alkaline earth metal carbonate obtainable by said process, and its use in the manufacture of products and devices in the field of electronics and glass. The process comprises the steps of calcinating the alkaline earth metal carbonate with an aqueous phase comprising a salt. The alkaline earth metal carbonate might be barium carbonate or strontium carbonate.

Process for manufacture of purified alkaline earth metal carbonate The invention concerns a process for the manufacture of a purified alkaline earth metal carbonate, the purified alkaline earth metal carbonate obtainable by said process, and its use in the manufacture of products and devices in the field of electronics and glass. The process comprises the steps of calcinating the alkaline earth metal carbonate with an aqueous phase comprising a salt. The alkaline earth metal carbonate might be barium carbonate or strontium carbonate.

Self binding mineral pigments (such as kaolin clay) having a high surface area and particle size in the nano scale range are provided which are useful in paper coating and filling, ink jet coating formulations, paint compositions, and as a filler in rubbers, plastics and polymers. These self binding pigments are manufactured by intensive wet milling of a mineral composition which may optionally be subjected to intensive dry grinding and acid treatment prior to wet milling or an acid treatment following dry grinding and wet milling.