Invention Grant
- Patent Title: Method for contaminant removal in paper production
- Patent Title (中): 纸张生产中污染物去除的方法
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Application No.: US13156066Application Date: 2011-06-08
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Publication No.: US08840761B2Publication Date: 2014-09-23
- Inventor: Daniel Mark Woiceshyn
- Applicant: Daniel Mark Woiceshyn
- Applicant Address: US GA Roswell
- Assignee: Imerys Talc America, Inc.
- Current Assignee: Imerys Talc America, Inc.
- Current Assignee Address: US GA Roswell
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Main IPC: D21H21/02
- IPC: D21H21/02 ; D21H21/00 ; D21H17/63 ; D21H17/67 ; D21H23/24

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 re-circulating 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.
Public/Granted literature
- US20110303378A1 METHOD FOR CONTAMINANT REMOVAL IN PAPER PRODUCTION Public/Granted day:2011-12-15
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