EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/937 |
Resumo: | High-yield pulps are usually derived from pine wood on account of its anatomical configuration and technology used. Eucalyptus, on the other hand, is a fast-growing species, abundant in many parts of the world, and has thus emerged as an alternative source for many products in the pulp and paper industry. In this particular study, high-yield pulps of Eucalyptus grandis were used. In order to improve their properties, pulps were subjected to chemical treatments with different doses of sodium hydroxide prior to refining (0, 30, 50 and 70 kg/t), at 75°C temperature, 3% consistency, during 1 minute. The refining process was done in a Bauer disc refiner (Regmed) using various refining times (0, 5, 10 and 15 minutes). Results showed that refining with addition of NaOH did bring significant gains to the eucalyptus fibers regarding strength properties, the dose 50 kg/t being found the most suitable. However, other variables associated with refining could also be modified to further improve the strength properties of eucalyptus pulps, including consistency and refining discs configuration. |
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EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUSHigh-yield pulpsodium hydroxiderefiningHigh-yield pulps are usually derived from pine wood on account of its anatomical configuration and technology used. Eucalyptus, on the other hand, is a fast-growing species, abundant in many parts of the world, and has thus emerged as an alternative source for many products in the pulp and paper industry. In this particular study, high-yield pulps of Eucalyptus grandis were used. In order to improve their properties, pulps were subjected to chemical treatments with different doses of sodium hydroxide prior to refining (0, 30, 50 and 70 kg/t), at 75°C temperature, 3% consistency, during 1 minute. The refining process was done in a Bauer disc refiner (Regmed) using various refining times (0, 5, 10 and 15 minutes). Results showed that refining with addition of NaOH did bring significant gains to the eucalyptus fibers regarding strength properties, the dose 50 kg/t being found the most suitable. However, other variables associated with refining could also be modified to further improve the strength properties of eucalyptus pulps, including consistency and refining discs configuration. CERNECERNE2016-04-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/937CERNE; Vol. 19 No. 4 (2013); 567-574CERNE; v. 19 n. 4 (2013); 567-5742317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/937/712Copyright (c) 2016 CERNEinfo:eu-repo/semantics/openAccessLongue Júnior, DaltonColodette, Jorge LuizBrumano, Gabriel de Castro BaiãoSilva, Edson Domingos daAlves, Marcos Maurici Araújo2016-04-06T13:20:59Zoai:cerne.ufla.br:article/937Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:54:13.111570Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
title |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
spellingShingle |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS Longue Júnior, Dalton High-yield pulp sodium hydroxide refining |
title_short |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
title_full |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
title_fullStr |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
title_full_unstemmed |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
title_sort |
EFFECT OF PROCESS VARIABLES ON QUALITY IMPROVEMENT OF TGW PULPS OF EUCALYPTUS |
author |
Longue Júnior, Dalton |
author_facet |
Longue Júnior, Dalton Colodette, Jorge Luiz Brumano, Gabriel de Castro Baião Silva, Edson Domingos da Alves, Marcos Maurici Araújo |
author_role |
author |
author2 |
Colodette, Jorge Luiz Brumano, Gabriel de Castro Baião Silva, Edson Domingos da Alves, Marcos Maurici Araújo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Longue Júnior, Dalton Colodette, Jorge Luiz Brumano, Gabriel de Castro Baião Silva, Edson Domingos da Alves, Marcos Maurici Araújo |
dc.subject.por.fl_str_mv |
High-yield pulp sodium hydroxide refining |
topic |
High-yield pulp sodium hydroxide refining |
description |
High-yield pulps are usually derived from pine wood on account of its anatomical configuration and technology used. Eucalyptus, on the other hand, is a fast-growing species, abundant in many parts of the world, and has thus emerged as an alternative source for many products in the pulp and paper industry. In this particular study, high-yield pulps of Eucalyptus grandis were used. In order to improve their properties, pulps were subjected to chemical treatments with different doses of sodium hydroxide prior to refining (0, 30, 50 and 70 kg/t), at 75°C temperature, 3% consistency, during 1 minute. The refining process was done in a Bauer disc refiner (Regmed) using various refining times (0, 5, 10 and 15 minutes). Results showed that refining with addition of NaOH did bring significant gains to the eucalyptus fibers regarding strength properties, the dose 50 kg/t being found the most suitable. However, other variables associated with refining could also be modified to further improve the strength properties of eucalyptus pulps, including consistency and refining discs configuration. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/937 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/937 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/937/712 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 19 No. 4 (2013); 567-574 CERNE; v. 19 n. 4 (2013); 567-574 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874942019305472 |