公开(公告)号：EP2144852A1

公开(公告)日：2010-01-20

申请号：EP08750094.8

申请日：2008-05-06

申请人： ZincOx Resources plc

发明人： CLAIS, Kevin ,  TURNER, Duncan ,  LEBLANC, Philippe ,  MASSE, Antoine

IPC分类号： C01G9/02 ,  C09C1/04 ,  C22B19/00

CPC分类号： C22B19/34 ,  C01G9/02 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/80 ,  C09C1/043

摘要： Method for producing hydrometallurgical zinc oxide powder having characteristics equivalent to that derived from a French process, comprising formation of an aqueous pulp from a starting zinc oxide having particles of nodular structure, wet milling of this aqueous pulp, separation in this milled pulp between a liquid phase and a solid phase containing the zinc oxide, and drying of said solid phase, coupled with a mechanical deagglomeration of the particles during drying, to obtain a dry zinc oxide powder with particles of nodular structure having a particle size distribution where the particles have an average size (d50) between 0.02 and 20 µm.