Preparation method for cobalt carbonate material with dense structure and globoid shape

• Main Authors: JI HONGAN, ZHU LAIDONG, WANG TONGMIN
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2012
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

The invention discloses a preparation method of a cobalt carbonate material with a dense structure and a globoid shape, and aims to solve the problem that the cobalt carbonate material prepared by the conventional method has a loose microstructure, a clutter shape and poor uniformity. The preparation method comprises the following steps: putting a cobalt chloride solution meeting requirements of system temperature, pH value and cobalt concentration in a reaction kettle, and keeping relatively constancy; adding an ammonium bicarbonate solution uniformly into a cobalt solution system according to a certain flow, with a defined pH value as a reaction terminal parameter of a control system; and after aging for a certain time, filtering and repeatedly washing to obtain the required cobalt carbonate material. The cobalt carbonate material has the characteristics of globoid shape, uniform particle size, dense structure and better particle size distribution; the specific cobalt carbonate material is prepared by using