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There are currently two main production processes for precipitated barium sulfate: Glauber's salt method-commonly known as black ash method and sulfuric acid method.
- 2020-04-09-

There are currently two main production processes for precipitated barium sulfate: Glauber's salt method-commonly known as black ash method and sulfuric acid method.


Glauber's salt method is to convert natural barite ore and coal into barium sulfide by calcination, blown film filler masterbatch reacts with Glauber's salt (sodium sulfate) to form precipitated barium sulfate and by-product sodium sulfide, sulfuric acid method is to convert barium sulfide through carbon dioxide into barium carbonate , And then react with pure sulfuric acid to produce precipitated barium sulfate.


Nano transparent blown film masterbatch


Next, our factory will talk to you about the eight major uses of barium sulfate precipitation.


1. Paint grade (TL): Special precipitated barium sulfate for paint is used for white extender pigments and various water-based, oil-based, resin industrial paints, primers, protective paints, etc.


2. Paper-making grade (ZZ): Barium sulfate is used as a filler for all kinds of paper and cardboard, and a wood pitch control agent.


3. Plastic grade (SL): used as filler for polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene and polyester.


4. Rubber grade (XJ): High-gloss barium sulfate is used for rubber fillers and anti-sticking agents for rubber products.


5. Cable grade (DL): used for cable rubber extender and cable isolating agent.


6. Ceramic grade (TC): used to make electric porcelain, radio porcelain, various industrial ceramics, architectural ceramics, daily-use ceramics and enamels.


7. Waterproof material grade (FS): used for waterproof coiled material, waterproof coating, waterproof ointment, etc.


8. Superfine barium sulfate: used in paint coatings, plastics, cable rubber, cosmetics, copper paper coatings, textile lubricants, etc.