Anhydrous sodium sulfate preparation method and anhydrous sodium sulfate preparation apparatus
A technology of Yuanming powder and clarification device, applied in chemical instruments and methods, alkali metal sulfites/sulfites, alkali metal compounds, etc., can solve the problem that the skin transportation process covers a large area and is easily polluted by fine nitrate dust. environment, prone to vacuum leakage and other problems, to achieve the effect of reducing investment costs and maintenance costs, less environmental pollution, and avoiding easy sand leakage
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[0041] The following non-limiting examples serve to illustrate the invention.
[0042] Such as Figure 1 to 4 As shown, a method for preparing sodium sulfate includes the following steps in sequence:
[0043] 1) Refined nitrate made from original nitrate, such as figure 2 Shown: The original nitrate produced by Glauber's salt mine is clarified by reaction (the nitrate water is preheated by the nitrate water preheating device, and then enters the nitrate water reaction clarification device, and alkali is added to the nitrate water reaction clarification device to remove Ca 2+ , Mg 2+ After impurity), the clear liquid passes through a valveless filter to obtain refined nitrate, and the turbid liquid passes through a rotating drum vacuum filter to obtain the clear liquid and then passes through a valveless filter to obtain refined nitrate, which is specifically:
[0044] A) The supernatant after the clarification of the nitrate reaction is filtered through a valveless filter to obtain ...
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