| 摘要 |
PROBLEM TO BE SOLVED: To obtain a particle having high density and uniform particle diameter with a high yield by providing a clarifying zone in a crystal growing part and a circulation line for supplying a clarified liquid to classifying zone to prevent unformed particles from mixing, in a device for allowing a metallic salt aq. solution consisting essentially of Ni or Co to react with an alkali aq. solution to continuously grow metallic hydroxide particles in a solvent, classifying and taking out them. SOLUTION: The device 1 is constituted of a main body part 2 for mainly accelerating the growth of the metallic hydroxide crystal and a classifying device part 3, the main body part 2 is provided with a draft tube 4 and a removing part of microcrystal 5, which is the clarifying zone, and an overflow line 7 is provided on the upper part of the microcrystal removing part 5. The each aq. solution of raw materials is supplied from a feed line 6, an ascending flow is made in the draft tube 4 and a descending flow in the outside thereof, a part of the clarified liquid flowing-out to the overflow line 7 is introduced into the classifying device part 3 through the circulation line 8 to make the ascending flow in the part 3 and only the classified particle is continuously taken out from a line 10 at the bottom of the classifying device part 3. |
