Method for linked producing potassium fluoride white carbon black
A technology of white carbon black and potassium fluoride, applied in the field of co-production of potassium fluoride and white carbon black, can solve the problems of high cost, achieve good economic value and social value, reduce production cost, and solve pollution problems
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Embodiment 1
[0016] The method for producing potassium fluoride co-production white carbon black in the present embodiment is: the concentration of fluosilicic acid is configured as 10%, potassium hydroxide and fluosilicic acid or potassium fluosilicate are reacted to make white carbon black, The reaction temperature is 85°C, the pH value at the end of the reaction is 9.0, and the slurry of white carbon black precipitation and potassium fluoride solution is obtained; the white carbon black slurry is filtered and washed to obtain white carbon black ointment and potassium fluoride solution, white carbon black The black ointment is washed and dried to obtain a white carbon black product; the potassium fluoride solution is concentrated and spray-dried to obtain a potassium fluoride product.
Embodiment 2
[0018] The method for producing potassium fluoride co-production white carbon black in the present embodiment is: the concentration of fluosilicic acid is configured as 20%, potassium hydroxide and fluosilicic acid or potassium fluosilicate are reacted to make white carbon black, The reaction temperature is 90°C, the pH value at the end of the reaction is 9.5, and the slurry of white carbon black precipitation and potassium fluoride solution is obtained; the white carbon black slurry is filtered and washed to obtain white carbon black ointment and potassium fluoride solution, white carbon black The black ointment is washed and dried to obtain a white carbon black product; the potassium fluoride solution is concentrated and spray-dried to obtain a potassium fluoride product.
Embodiment 3
[0020] The method for the production of potassium fluoride co-production of white carbon black in this embodiment is as follows: the concentration of fluosilicic acid is configured as 30%, potassium hydroxide and fluosilicic acid or potassium fluosilicate are reacted to prepare white carbon black, and the reaction The temperature is 95° C., and the pH value at the end of the reaction is 10.0 to prepare a slurry of white carbon black precipitate and potassium fluoride solution. Filter and wash the white carbon black slurry to obtain white carbon black ointment and potassium fluoride solution, wash and dry the white carbon black ointment to obtain white carbon black products; concentrate and spray dry the potassium fluoride solution to obtain potassium fluoride product.
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