MULTI-BATCH PROCESS FOR GENERATING PRECIPITATED CALCIUM CARBONATE
Multi-batch processes for forming precipitated calcium carbonate (PCC) using one or more reactors are described. A CO2 source and a calcium source are reacted in water partially or completely, and with or without additives to form calcium carbonate, which may be separated from the water as a precipitated calcium carbonate product having single or multiple modes, structures, and/or morphologies. In other embodiments, more than one reactor may be used to form PCC products having different properties, which are products are then combined. One or more reactors may have an output stream of PCC or excess reagents diverted to feed into one or more other reactors. The diverted output stream may be concentrated or modified by other means.