Inventory audit notice: TAPPI Press orders will not be processed from August 21–28 during our fiscal year-end inventory audit. Orders placed during this time will ship starting August 31, in the order received. Normal payment processing also resumes August 31.

Thanks for your patience — this helps us serve our members better.

Search

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

Showing 4,761–4,770 of 5,361 results (Duration : 0.019 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Collections

Journal articles
Magazine articles
Open Access
Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017

Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017

Journal articles
Magazine articles
Open Access
Understanding conductivity and soda loss

Understanding conductivity and soda loss

Journal articles
Magazine articles
Open Access
Estimating limits of wet pressing on paper machines, TAPPI JOURNAL February 2017

Estimating limits of wet pressing on paper machines, TAPPI JOURNAL February 2017

Journal articles
Magazine articles
Open Access
Removal of silicon from green liquor with low-temperature precausticizing, TAPPI JOURNAL January 2017

Removal of silicon from green liquor with low-temperature precausticizing, TAPPI JOURNAL January 2017

Journal articles
Magazine articles
Open Access
Reduction of alkali loss in an ash leaching system, TAPPI J

Reduction of alkali loss in an ash leaching system, TAPPI JOURNAL July 2017

Journal articles
Magazine articles
Open Access
Improving the efficiency of hydrogen peroxide bleaching of c

Improving the efficiency of hydrogen peroxide bleaching of chemimechanical pulp by continuous replenishment of bleaching chemicals, TAPPI JOURNAL June 2017

Journal articles
Magazine articles
Open Access
Melt-blown compostable polyester films with lignin, TAPPI J

Melt-blown compostable polyester films with lignin, TAPPI JOURNAL March 2017

Journal articles
Magazine articles
Open Access
The Chinese ban on recovered paper imports

The Chinese ban on recovered paper imports: An international disruption, TAPPI JOURNAL November 2017

Journal articles
Magazine articles
Open Access
Formation mechanisms of “jellyroll” smelt in kraft recovery

Formation mechanisms of “jellyroll” smelt in kraft recovery boilers, TAPPI JOURNAL October 2017

Journal articles
Magazine articles
Open Access
Mill experience of calcium carbonate scale formation in green liquor pipelines, TAPPI Journal August 2020

ABSTRACT: Experience of hard calcite (CaCO3) scale formation in green liquor pipelines at four kraft pulp mills was systematically investigated to determine if there is any correlation between the severity of the scaling problem at each mill and the design and operating conditions of its causticizing plant. The results show that the high degree of supersaturation of calcium ions (Ca2+) in the liquor is the main contributing factor. Mills that operate at a lower green liquor total titratable alkali (TTA), higher causticity, and a larger liquor temperature drop are more likely to produce a green liquor that is supersaturated with Ca2+, and thus experience more severe scaling problems. In order to minimize CaCO3 scaling, the green liquor handling equipment should be operated as steady as possible to avoid conditions that allow Ca2+ to be supersaturated. The strategies include minimizing variations in liquor TTA, insulating the green liquor pipelines to reduce temperature gradients, and adding lime mud to weak wash to provide seeds for precipitation to occur on mud particles instead of on metal substrate.

Inside this Section