公开(公告)号：EP2580390B1

公开(公告)日：2019-03-13

申请号：EP11793090.9

申请日：2011-06-08

Applicant: IMERYS TALC AMERICA, INC.

Inventor： WOICESHYN, Daniel, Mark

IPC: D21C7/00 ,  D21H17/68 ,  D21H21/02

公开(公告)号：EP2580390A1

公开(公告)日：2013-04-17

申请号：EP11793090.9

申请日：2011-06-08

Applicant: IMERYS TALC AMERICA, INC.

Inventor： WOICESHYN, Daniel, Mark

IPC: D21C7/00

CPC classification number: D21H17/67 ,  D21H17/68 ,  D21H21/02

Abstract: The present invention relates to a process for controlling deposits in a paper making process, more particularly to a process comprising the use of talc for controlling deposits in a paper making process with talc. One aspect of the invention is contacting talc with a white water stream at one or more locations within the paper making process after separating pulp from a pulp-containing stream and before introducing the recirculating the white water stream to one or more of a pulper, a thick-stock, a thin-stock, a dilution process, a shower, a storage vessel, a blending process, and a digestor.