Invention Grant
US08524037B2 Continuous digestion of chip blends containing a western red cedar chip furnish
有权
连续消化含有西方红柏木芯片配料的芯片混合物
- Patent Title: Continuous digestion of chip blends containing a western red cedar chip furnish
- Patent Title (中): 连续消化含有西方红柏木芯片配料的芯片混合物
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Application No.: US13009762Application Date: 2011-01-19
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Publication No.: US08524037B2Publication Date: 2013-09-03
- Inventor: Ranbir Heer , Paul Watson
- Applicant: Ranbir Heer , Paul Watson
- Applicant Address: CA Vancouver, B.C.
- Assignee: Canfor Pulp and Paper Sales Ltd.
- Current Assignee: Canfor Pulp and Paper Sales Ltd.
- Current Assignee Address: CA Vancouver, B.C.
- Agency: Bozicevic, Field & Francis LLP
- Agent Bret E. Field; Benjamin C. Pelletier
- Main IPC: D21C3/26
- IPC: D21C3/26

Abstract:
A process is provided for delignifying lignocellulosic material, including feeding a lignocellulosic blend comprising a Western Red Cedar (WRC) chip furnish and a second lignocellulosic material into an aqueous alkaline pulping solution at the feed end of a digester to produce a lignocellulosic mass. The second lignocellulosic material is provided in a proportion that increases the density of the mass to enable the mass to move through the digester while minimizing production effects associated with low density WRC chips. The mass moves through the digester to produce a pulp that may be bleached.
Public/Granted literature
- US20110186250A1 Continuous Digestion of Chip Blends Containing a Western Red Cedar Chip Furnish Public/Granted day:2011-08-04
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