Application of barium sulfate as filler in plastics
The natural ore (barite) is crushed, dry cleaned and dried to obtain barite powder (also called barium sulfate), which is white or gray powder. The density is 4.3-4.68. Barite is heated to 1100 ℃ and reduced to form soluble barium sulfate, and then reacts with sulfuric acid or sodium sulfate to form precipitated barium sulfate, with fine particle size, whiteness up to 92° or more, and high specific gravity. It has good gloss, good thermal stability and excellent processing properties.
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