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Production Method Of Sodium Permanganate
Sep 19, 2018

1. Chlorine oxidation method will crush to more than 100 mesh of soft manganese ore powder (or recovery of manganese dioxide), according to the ratio of 1:0.9~1:1.10 and caustic soda mixed, heated in 400~500℃ under the oxidation roasting 8~12h, so that manganese dioxide converted into sodium permanganate, and then water or mother liquor after leaching,

In the 93~95℃ of chlorine, until the ph value of 6.5~6.8, the preparation of sodium permanganate solution, and then by evaporation concentration, crystallization, centrifugation separation, the production of sodium permanganate Crystal finished products.

2. The complex decomposition reaction of barium permanganate and the sodium sulfate after repeated recrystallization, filtered out the generated barium sulfate, concentrated filtrate, cooling, crystallization, that is, three hydrates. 

3. Pyrolusite or recovery of manganese dioxide and caustic soda mixture, by roasting oxidation, so that manganese dioxide converted into sodium permanganate, and then dissolved and through the chlorine to make the sodium permanganate further oxidation, the preparation of high manganese acid sodium.