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Journal articles
Winding virtual rolls, TAPPI JOURNAL June 2011
Winding virtual rolls, TAPPI JOURNAL June 2011
Journal articles
Methods to determine the dry matter content of roundwood deliveries, TAPPI JOURNAL June 2011
Methods to determine the dry matter content of roundwood deliveries, TAPPI JOURNAL June 2011
Journal articles
Environmental aspects of wood residue combustion in forest products industry boilers, TAPPI JOURNAL March 2011
Environmental aspects of wood residue combustion in forest products industry boilers, TAPPI JOURNAL March 2011
Journal articles
Magazine articles
Pulp Mill Energy Audit Pays Off, Paper360º July/August 2019
Pulp Mill Energy Audit Pays Off, Paper360º July/August 2019
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º July/August 2019
TAPPI Journal Summaries, Paper360º July/August 2019
Journal articles
Magazine articles
UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019
UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º March/April 2019
TAPPI Journal Summaries, Paper360º March/April 2019
Journal articles
Magazine articles
Prehydrolysis kraft pulping of jute cutting and caddis mixture for rayon production
ABSTRACT: Jute cutting, jute caddis, and cutting-caddis mixtures were prehydrolyzed by varying time and temperature to get about 90% prehydrolyzed yield. At the conditions of 170°C for 60 min of prehydrolysis, the yield for 100% jute cutting was 76.3%, while the same for jute caddis was only 67.9%. But with prehydrolysis at 150°C for 60 min, the yield was 90% for jute cutting, where 49.94% of original pentosan was dissolved and prehydrolysis of jute caddis at 140°C in 60 min yielded 86.4% solid residue. Jute cutting-caddis mixed prehydrolysis was done at 140°C for 30 min and yielded 92% solid residue for 50:50 cutting-caddis mixtures, where pentosan dissolution was only 29%. Prehydrolyzed jute cutting, jute caddis, and cutting-caddis mixtures were subsequently kraft cooked. Pulp yield was only 40.9% for 100% jute cutting prehydrolyzed at 170°C for 60 min, which was 10.9% lower than the prehydrolysis at 140°C. For jute cutting-caddis mixed prehydrolysis at 140°C for 45 min followed by kraft cooking, pulp yield decreased by 3.3% from the 100% cutting to 50% caddis in the mixture, but 75% caddis in the mixture decreased pulp yield by 6.7%. The kappa number 50:50 cutting-caddis mixture was only 11.3. Pulp bleachability improved with increasing jute cutting proportion in the cutting-caddis mixture pulp.
Journal articles
Magazine articles
Facing the Market, Paper360 May/June 2019
Facing the Market, Paper360 May/June 2019
Journal articles
Magazine articles
The Shortest Route to Fiber Quality, Paper360 May/June 2019
The Shortest Route to Fiber Quality, Paper360 May/June 2019