Particulate zinc oxide shapes of high surface area and...

C - Chemistry – Metallurgy – 01 – G

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C01G 9/02 (2006.01) B01D 53/48 (2006.01)

Patent

CA 1094293

ABSTRACT Particulate zinc oxide shapes of high surface area and improved crushing strength are prepared without extraneous binder by a process including forming normal surface area zinc oxide into shapes without binder, converting at least a portion of the zinc oxide to basic zinc carbonate by exposing the shape in the presence of moisture, to a carbon dioxide-containing atmosphere and effecting substantially complete decomposition of the basic zinc carbonate. Conditions of bulk density, moisture content and temperature are controlled. -1-

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