Method for preparing lithium phosphate nano-particles
A nanoparticle, lithium phosphate technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of large particle size of lithium phosphate particles, serious particle growth, unfavorable rapid nucleation and other problems, and achieve good equipment reliability. , small size, easy to operate effect
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Embodiment 1
[0023] A membrane dispersion microreactor is used, which uses a microporous membrane as the dispersion medium. Prepare 1L of 2.00mol / L lithium hydroxide aqueous solution and put it into the storage container to obtain solution A. At the same time, 1L of 0.50mol / L phosphoric acid aqueous solution was prepared and put into the storage container to obtain solution B. At a reaction temperature of 20°C, solution A was added to the microreactor at a flow rate of 50ml / min from the storage container, solution B was added to the microreactor at a flow rate of 50ml / min from the storage container, and solution A and solution B were in the microreactor. The fast-forward mixing and precipitation reaction occurred in the reactor, and the reaction time was 0.3s. Slurry C is obtained from the outlet of the reactor, the slurry C is filtered to obtain the precipitate, the precipitate is washed and dried at 60° C., and finally milled to obtain lithium phosphate nanoparticles with an average part...
Embodiment 2
[0025] A micro-mesh micro-reactor is used, which uses a micro-mesh plate as the dispersion medium. Prepare 1L of 1.50mol / L lithium carbonate aqueous solution and put it into the storage container to obtain solution A. At the same time, 1L of 1.00mol / L phosphoric acid aqueous solution was prepared and put into the storage container to obtain solution B. At a reaction temperature of 50°C, solution A was added to the microreactor at a flow rate of 70ml / min from the storage container, solution B was added to the microreactor at a flow rate of 70ml / min from the storage container, and solution A and solution B were in the microreactor. The mixing and precipitation reaction occurred in the reactor, and the reaction time was 0.3s. Slurry C is obtained from the reactor outlet, the slurry C is filtered to obtain the precipitate, the precipitate is washed and dried at 80° C., and finally milled to obtain lithium phosphate nanoparticles with an average particle size of 100 nm and a yield ...
Embodiment 3
[0027] A co-current micro-flute micro reactor is used, which has a co-current micro-flute micro structure. Prepare 1L of 3.00mol / L lithium acetate aqueous solution and put it into a storage container to obtain solution A. At the same time, 3L of 0.50mol / L phosphoric acid aqueous solution was prepared and put into the storage container to obtain solution B. At a reaction temperature of 90°C, solution A was added to the microreactor at a flow rate of 10ml / min from the storage container, solution B was added to the microreactor at a flow rate of 30ml / min from the storage container, and solution A and solution B were in the microreactor. The mixing and precipitation reaction occurred in the reactor, and the reaction time was 0.6s. Slurry C is obtained from the reactor outlet, the slurry C is filtered to obtain the precipitate, the precipitate is washed and dried at 70° C., and finally milled to obtain lithium phosphate nanoparticles with an average particle diameter of 120 nm and ...
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