Preparation method of high density basic nickelous carbonate
A nickel carbonate, high-density technology, applied in nickel carbonate and other directions, can solve the problems of many types of impurities, high production costs, and difficult to clean, and achieve the effect of fewer types of impurities
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Embodiment 1
[0029] A preparation method of high-density basic nickel carbonate, the method is realized through the following steps:
[0030] Step 1, prepare respectively the sodium carbonate solution of carbonate ion concentration 150g / L and the nickel chloride solution that nickel ion concentration is 1.5mol / L in solution tank;
[0031] Step 2, feed with metering pump, add sodium carbonate solution and nickel chloride solution in the special reactor simultaneously (this reactor can flow out mother liquor in reaction process, and guarantee the solid content of the reaction system that nickel carbonate and mother liquor constitute Constantly increasing), the flow of keeping nickel salt solution in the feeding process is constant at 50L / h, and the pH value of the control system is 8.1, and react at 80°C for 15 hours to obtain a mixture of nickel carbonate and mother liquor;
[0032] In step 3, the mixture of the nickel carbonate obtained in step 2 and the mother liquor is put into a centri...
Embodiment 2
[0035] A preparation method of high-density basic nickel carbonate, the method is realized through the following steps:
[0036] Step 1, prepare respectively the sodium carbonate solution of carbonate ion concentration 150g / L and the nickel chloride solution that nickel ion concentration is 1.5mol / L in solution tank;
[0037] Step 2, feed with metering pump, add sodium carbonate solution and nickel chloride solution in the special reactor simultaneously (this reactor can flow out mother liquor in reaction process, and guarantee the solid content of the reaction system that nickel carbonate and mother liquor constitute Constantly increasing), the flow of keeping nickel salt solution in the feeding process is constant at 50L / h, and the pH value of the control system is 8.0, and reacted at 99°C for 8 hours to obtain a mixture of nickel carbonate and mother liquor;
[0038] In step 3, the mixture of the nickel carbonate obtained in step 2 and the mother liquor is put into a centr...
Embodiment 3
[0041] A preparation method of high-density basic nickel carbonate, the method is realized through the following steps:
[0042] Step 1, prepare respectively the sodium carbonate solution of carbonate ion concentration 150g / L and the nickel chloride solution that nickel ion concentration is 1.5mol / L in solution tank;
[0043] Step 2, feed with metering pump, add sodium carbonate solution and nickel chloride solution in the special reactor simultaneously (this reactor can flow out mother liquor in reaction process, and guarantee the solid content of the reaction system that nickel carbonate and mother liquor constitute Constantly increasing), the flow of keeping nickel salt solution in the feeding process is constant at 50L / h, and the pH value of the control system is 8.3, and react at 70°C for 18 hours to obtain a mixture of nickel carbonate and mother liquor;
[0044] In step 3, the mixture of the nickel carbonate obtained in step 2 and the mother liquor is put into a centri...
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