Abstract Coloring mica nacreous pigments were prepared by double-covering method, and the optimum parameters were given for cobalt-colored and nickel-colored, respectively. In case of cobalt-colored mica nacreous pigment, the optimum technical conditions are: hydrolyzed at 100 �� for 2 h, pH 7—8, the volume of cobalt nitrate is 25—30 mL to 10 g raw material��finally calcined at 600 �� for 1.5 h. In case of nickel-colored mica nacreous pigment, the optimum technical conditions are: hydrolyzed at 90 �� for 2 h, pH 7—8, the volume of nickel dichloride is 20 mL to 10 g raw material��finally calcined at 600 �� for 1.5 h.
LI Zhen-Rong, KONG Yu-Xia, SHAO Jun-Jie, LI Guang-Fu.Preparation of Coloring Mica Nacreous Pigment by Double-Covering Method[J] Chemcial Industry and Engineering, 2011,V28(1): 43-43
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2011, Vol. 28 
