Method for preparing potassium fluoride with white carbon black as co-product by using fluorosilicic acid as raw material
A technology of potassium fluorosilicate and potassium fluoride, which is applied in the field of preparation of potassium fluoride and co-production of white carbon black, can solve the problems of high cost, achieve low production cost, avoid the impact of output and quality, and achieve the effect of clean production
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[0023] In the following, the technical solutions in the embodiments of the present invention are clearly and completely described. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] A method for preparing potassium fluoride co-production white carbon black with fluosilicic acid as raw material, the method comprises the following steps:
[0025] S1 dissolving and filtering potassium chloride to obtain a potassium chloride solution;
[0026] S2 Inject the potassium chloride solution obtained in S1 into a fluorosilicic acid solution with a mass concentration of 30% to 40% for reaction. The pH at the end of the reaction is 5 to 6. After the reaction is completed, stir for 25 to 35 minu...
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