Reactor for bleaching high consistency pulp with ozone

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United States of America Patent

PATENT NO 5472572
SERIAL NO

07821117

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus and method for bleaching high consistency lignocellulosic pulp using ozone supplied in an ozone containing gas. The bleaching reactor apparatus according to the invention is a generally cylindrical vessel with a rotatable shaft having radially extending paddles arranged in a configuration to minimize axial dispersion of the pulp and maximize radial dispersion of the pulp to provide a radially dispersed plug flow of pulp through the reactor in the presence of the ozone to provide substantially uniformly bleached pulp.

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Patent Owner(s)

Patent OwnerAddress
UNION CAMP PATENT HOLDINGS INC A DE CORP919 WASHINGTON ST WILMINGTON DE 19801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Friend, William H Savannah, GA 14 120
Gandek, Thomas P Trenton, NJ 15 182
Pikulin, Michael A Bound Brook, NJ 18 215
White, David E Pennington, NJ 16 154

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