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 (42A, 42B) with a rotatable shaft (48B) having radially extending paddles (52B) or other conveying elements 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.
申请公布号
WO9314260(A1)
申请公布日期
1993.07.22
申请号
WO1992US03389
申请日期
1992.04.24
申请人
UNION CAMP PATENT HOLDING, INC.
发明人
WHITE, DAVID, C.;PIKULIN, MICHAEL;GANDEK, THOMAS, P.;FRIEND, WILLIAM, H.