Search

Use the search bar or filters below to find any TAPPI product or publication.

Showing 401–410 of 631 results (Duration : 0.011 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Collections

Journal articles
Magazine articles
Open Access
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.

Journal articles
Open Access
Maximization of profit through optimal selection of inventory levels and production rates in pulp and paper mills, TAPPI JOURNAL, July 2003, Vol. 2(7) (166KB)

Maximization of profit through optimal selection of inventory levels and production rates in pulp and paper mills, Solutions! & TAPPI JOURNAL, July 2003, Vol. 2(7) (166KB)

Journal articles
Open Access
Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Journal articles
Open Access
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

Journal articles
Open Access
A mathematical method for determining fiber wall thickness and fiber width , Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (117KB)

A mathematical method for determining fiber wall thickness and fiber width , Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (117KB)

Journal articles
Open Access
Fiber Trapping in Low-Consistency Refining: New Parameters to Describe the Refining Process, TAPPI JOURNAL October 2009

Fiber Trapping in Low-Consistency Refining: New Parameters to Describe the Refining Process, TAPPI JOURNAL October 2009

Journal articles
Open Access
Operating Costs Related to Instability in a Pulp and Paper Activated Sludge Treatment System, TAPPI JOURNAL October 2009

Operating Costs Related to Instability in a Pulp and Paper Activated Sludge Treatment System, TAPPI JOURNAL October 2009

Journal articles
Open Access
Bleaching of recycled fibers by adding sodium borohydride to a peroxide reinforced oxygen stage, TAPPI JOURNAL, June 2001, Vol. 84(6)

Bleaching of recycled fibers by adding sodium borohydride to a peroxide reinforced oxygen stage, TAPPI JOURNAL, June 2001, Vol. 84(6)

Journal articles
Open Access
E-commerce: panacea or placebo?, TAPPI JOURNAL, July 2001, Vol. 84(7)

E-commerce: panacea or placebo?, TAPPI JOURNAL, July 2001, Vol. 84(7)

Magazine articles
Open Access
Beauty or the beast: life after iso 9000, TAPPI JOURNAL, October 1994, Vol. 77(10)

Beauty or the beast: life after iso 9000, TAPPI JOURNAL, October 1994, Vol. 77(10)

Inside this Section