Process method for producing high-pure spherical heavy manganese carbonate
A process method, manganese carbonate technology, applied in chemical instruments and methods, manganese compounds, inorganic chemistry, etc., can solve the problems of high energy consumption and price restrictions, high impurity content, etc., and achieve good fluidity, low impurity content, and bulk density big effect
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Embodiment 1
[0012] Purify the manganese sulfate solution by removing impurities such as calcium, magnesium, iron and other metal ions, prepare a manganese sulfate solution with a concentration of 80g / L; prepare an ammonium bicarbonate solution with a concentration of 60g / L, and fill the ammonium bicarbonate solution with ammonia To generate an ammonium bicarbonate solution; add 10% water and 20% manganese carbonate seed crystals of the total volume of the reactor into a 10L reactor, stir at a stirring speed of 100 rpm, and raise the temperature to 40°C; drop into the reactor at the same time Add the manganese sulfate solution 2000ml prepared in the step a of equimolar ratio and the ammonium bicarbonate solution 1700ml prepared in the step b, make the amount of liquid manganese sulfate and the ammonium bicarbonate amount keep equimolar ratio, control reaction time 4 hours, reaction is finished Finally, after washing with water and suction filtration, the appearance is spherical, the average...
Embodiment 2
[0014] The manganese sulfate solution is purified and purified to remove calcium, magnesium, iron and other metal ions, and the manganese sulfate solution with a concentration of 180g / L is prepared; the ammonium bicarbonate solution with a concentration of 150g / L is prepared, and nitrogen is filled in the ammonium bicarbonate solution To generate an ammonium bicarbonate solution; add 10% water and 30% manganese carbonate seed crystals of the total volume of the reactor into a 10L reactor, stir at a stirring speed of 200 rpm, and raise the temperature to 90°C; drop into the reactor at the same time Add the manganese sulfate solution 2000ml prepared in the step a of equimolar ratio and the ammonium bicarbonate solution 1526ml prepared in the step b, make the amount of liquid manganese sulfate and the ammonium bicarbonate amount keep equimolar ratio, control reaction time 8 hours, reaction is finished Finally, after washing with water and suction filtration, the appearance is sphe...
Embodiment 3
[0016] Purify the manganese sulfate solution to remove metal ions such as calcium, magnesium and iron, and prepare a manganese sulfate solution with a concentration of 140g / L; prepare an ammonium bicarbonate solution with a concentration of 80g / L, and fill the ammonium bicarbonate solution with ammonia Generate ammonium bicarbonate solution; to 10m 3 Add 10% water and 30% manganese carbonate seed crystals of the total volume of the reactor into the reactor, stir and stir at a speed of 150 rpm, and heat up to 80°C; The manganese sulfate solution 2000L of preparation and the ammonium bicarbonate solution 2225L of preparation in the step b, make the amount of adding liquid manganese sulfate and the amount of ammonium bicarbonate keep equimolar ratio, control reaction time 5 hours, after reaction finishes, after washing, suction filtration, obtain The appearance is spherical, the average particle size is 10-20 microns, the manganese content is 44.6% (weight percent), and the tap d...
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