Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 10, 2011
Patent Application Number
12451316
Date Filed
May 6, 2008
Patent Primary Examiner
Patent abstract
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.
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