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ARE YOU A TAPPI MEMBER? TAPPI members have exclusive, FREE access to technical conference papers and presentations six months after the conference in TAPPI's e-library. The e-Library offers:
*Technical papers and presentations are available for sale immediately following the conferences before the 6 month embargo period.
Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual. Purchase of electronic (downloadable) documents made at www.tappi.org by credit cards, followed by instant download CANNOT be cancelled. We do not offer refunds on electronic download documents.Hot Water Extraction of hardwoods has been proposed as an early step in converting pulp mills into more full featured biorefineries with a significantly enhanced list of wood-derived products. There have been several reports about the impact of Hot Water Extraction (HWE) of Northern Hardwoods on pulping with modest references to the impacts of HWE on the bleachabilty of the Kraft pulp produced from HWE extracted chips in a conventional ODED sequence. Mixed northern hardwood chips were extracted with water to achieve a range of mass removal in a simulated counter current mode. It was documented that the extracted chips required a significantly lower H-factor to achieve the same degree of delignification (kappa number) in a Kraft cook compared to control (unextracted chips) at the same AA charge.
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Available for Purchase – Conference Proceedings
TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.
The impact of hot-water extraction (HWE) of Northern Hardwoods on conventional bleach plant operatio