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the preparation method of sodium fluoride, and everybody know about the below.
sodium carbonate or sodium hydroxide under stirring and hydrofluoric acid in carbon brick and lead-lined steel reactor for reaction. After centrifugal separation, drying and made. By fluorite, soda ash, quartz sand melt under 800 ~ 900 ℃, water leaching, the filtrate through evaporation, crystallization, drying system. Also can be made of byproduct gases from the phosphate fertilizer plant of sodium fluosilicate and sodium carbonate by 1:2 mole ratio of mixture, in about 80 ℃, the silica gel with sodium hydroxide dissolved into soluble silicate, then through crystallization filtration, separation, dry. this is appropriate xin chemical co. , LTD. Shanghai explain for everybody about sodium fluoride production way, more consultation, can contact the appropriate Shanghai xin chemical co. , LTD. , welcome. To inquire.
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