Patent ID: 7211235

Claim:
A process for the production of a hydrotalcite product comprising: subjecting at least one component selected from the group consisting of bivalent metal compounds (Component A) and trivalent metal compounds (Component B) to grinding until an average particle size, D 50 , of the ground compound is in the range from about 0.1 and 5 μm, and wherein at least one of Components A or B is added in the form of a suspension or slurry; mixing Component A with Component B to form a suspension, wherein the solid content of the suspension containing Component A and Component B comprises about 30 to about 60 weight percent of the suspension and wherein the grinding occurs shortly before or during mixing; reacting in the suspension Component A with Component B to form a hydrotalcite suspension containing a hydrotalcite product; separating the hydrotalcite product from the hydrotalcite suspension and drying the hydrotalcite product.