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Leaching of Chloride and Potassium from Electrostatic Precipitator Catch, 1998 International Chemical Recovery Conference Proceedings
Leaching of Chloride and Potassium from Electrostatic Precipitator Catch, 1998 International Chemical Recovery Conference Proceedings
Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Duplex Stainless Steel: An Effective Material for Use in Kraft Liquor Applications, 2001 Engineering / Finishing & Converting Conference Proceedings
Low-Budget, High-Performance Distributed Control System, 1997 Process Control, Electrical & Info. Conference Proceedings
Low-Budget, High-Performance Distributed Control System, 1997 Process Control, Electrical & Info. Conference Proceedings
An XPS Study of the Reaction of Metal Ions with Borohydride
An XPS Study of the Reaction of Metal Ions with Borohydride Under Reductive Bleaching Conditions, 1991 Pulping Conference Proceedings
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Continuous tannin extraction by use of screw reactor, TAPPI Journal February 2021
ABSTRACT: A pilot-size screw reactor (extraction unit) was used for tannin extraction of spruce. Yield of the same magnitude or better was obtained when comparing a screw reactor with batch reactors. A longer presoaking time in water seemed to be better than a short one for obtaining higher yield. A higher yield is obtained with lower dry-water ratio, which suggests that the internal diffusion in bark does not determine mass transfer as much as is the case without presoaking of bark. The higher dry-water ratio decreased the yield. The prior soaking of the bark also minimized the mechanical reactor feeding problems (clogging). The benefits of a screw reactor likely are that run time changes for different process conditions are flexible; it simplifies design and construction of an industrial unit for tannin production; and it saves space because of the need for fewer and smaller intermediate storage tanks.