processes for producing an aqueous precipitate of calcium carbonate and for producing a precipitated calcium carbonate, aqueous suspension of precipitated calcium carbonate, precipitated calcium carbonate, product, and use of an aqueous precipitate of calcium carbonate and a combination

摘要

This invention is directed to a process for producing an aqueous suspension of precipitated calcium carbonate, wherein a lime milk is prepared by mixing water, a calcium oxide-containing material, at least one water-soluble polymer having a molecular weight. mw in the range 200 to 6500 g / mol and at least one quenching additive and subsequently the lime milk is carbonated to form an aqueous precipitate of calcium carbonate.