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公开(公告)号：EP3083839B1
公开(公告)日：2018-01-17
申请号：EP14837067.9
申请日：2014-12-11
CPC分类号： C08K3/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C08K3/16 , C08K3/22 , C08K3/26 , C08K2003/162 , C08K2003/2241 , C08K2003/262 , C08K2003/267 , C08K2003/324 , C09C1/0084 , C09C1/02 , C09C1/3661
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公开(公告)号：EP3083839A1
公开(公告)日：2016-10-26
申请号：EP14837067.9
申请日：2014-12-11
CPC分类号： C08K3/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C08K3/16 , C08K3/22 , C08K3/26 , C08K2003/162 , C08K2003/2241 , C08K2003/262 , C08K2003/267 , C08K2003/324 , C09C1/0084 , C09C1/02 , C09C1/3661
摘要： The invention relates to a method for producing composite particles, in particular composite particles based on titanium dioxide and carbonate, by means of combined mixing, homogenization, and precipitation in a flow-through mixer based on the rotor-stator principle. The method proceeds from an aqueous suspension of a particulate main component (e.g., titanium dioxide), which preferably is produced in a reservoir vessel equipped with a high-power stirring unit. At least one of the required precursor substances and/or a pH-controlling component for precipitating, for example, calcium carbonate, is metered into the flow-through mixer and precipitates the calcium carbonate. The method can be performed as a fully continuous method or as a batch method and enables shorter production times. The produced composite particles have a homogenous dispersion of the precipitated particles and of the particulate main component.
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