METHOD FOR MANUFACTURING HYDROTALCITE PARTICLES

摘要

Provided is a method for manufacturing hydrotalcite particles whose average secondary particle size is between 1 nm and 100 nm. According to the present invention, an aqueous solution in which magnesium salt and aluminum salt are mixed with each other, an alkaline material, and an inter-layer anion are reacted with each other in a forced thin-film microreactor whereof the reaction field clearance is between 1 mum and 30 mum. The molar ratio of the reacted alkaline material with respect to magnesium metal and aluminum metal is between 2 and 15, and the average secondary particle size measured by a frequency analysis method is between 1 nm and 100 nm.