Method for preparing sodium phosphate and barium chloride with cogeneration of powdery barium salt by using salting-out master liquid generated in zinc powder method
A sodium phosphate, zinc powder method technology, applied in chemical instruments and methods, thiosulfate/dithionite/polythionite, phosphorus compounds, etc., can solve the problem of low quality of recovered salt, secondary pollution, escaping and other problems, to achieve considerable economic benefits, pollution control, and simple equipment.
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Embodiment 1
[0023] The method for preparing sodium phosphate and barium chloride co-production powder barium salt with the salting-out mother liquor in the zinc powder method comprises the following preparation steps:
[0024] Step A, put 1000 liters of salting-out mother liquor and barium phosphate solution in the zinc powder method into corrosion-resistant reactor 1 according to the mass ratio of pure substance 1: 0.95 (wherein containing 40Kg of sodium sulfite, 20Kg of sodium dithionite, sodium chloride 250Kg, calculated according to the mass ratio of sodium sulfite to barium phosphate 1:0.95, the mass ratio of sodium dithionite to barium phosphate 1:0.95, and the mass ratio of sodium chloride to barium phosphate 1:0.95, the required barium phosphate Be 294.5Kg), keep stirring; Reaction generates the mixed solution of sodium phosphate, barium chloride, barium sulfite barium dithionite;
[0025] Step B, filter the mixed solution obtained in step A with a filter 2;
[0026] Step C, with...
Embodiment 2
[0030] The method for preparing sodium phosphate and barium chloride co-production powder barium salt with the salting-out mother liquor in the zinc powder method comprises the following preparation steps:
[0031] Step A, put 1000 liters of salting-out mother liquor and barium phosphate solution in the zinc powder method into corrosion-resistant reactor 1 according to the mass ratio of pure substance 1: 1.71 (wherein containing sodium sulfite 40Kg, sodium dithionite 20Kg, sodium chloride 250Kg, calculated according to the mass ratio of sodium sulfite to barium phosphate 1:1.71, the mass ratio of sodium dithionite to barium phosphate 1:1.71, and the mass ratio of sodium chloride to barium phosphate 1:1.71, the required input chloride Barium is 530.1Kg), constantly stirring; Reaction generates the mixed solution of sodium phosphate, barium chloride, barium sulfite barium dithionite;
[0032] Step B, filter the mixed solution obtained in step A with a filter 2;
[0033] Step C,...
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