Pitch detackification with natural and modified talcs

Pitch deposition in the pulp or in different parts of the manufacturing system can lead to a decrease in the quality of the final paper produced and to manufacturing efficiency problems. Tackiness is the property of pitch which related to the deposit formation. One of the methods to control pitch de...

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Detalhes bibliográficos
Autores: Tijero Cruz, Antonio, Monte Lara, María Concepción, Blanco Suárez, María Ángeles
Formato: artículo
Fecha de publicación:2011
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44802
Acesso em linha:https://hdl.handle.net/20.500.14352/44802
Access Level:acceso abierto
Palavra-chave:66.0
Detackiness
Deposit formation
Dissolved and colloidal material
Papermaking
Paper recycling
Pitch
Pitch control
Pulp
Talc
Wood extractives
Ingeniería química
3303 Ingeniería y Tecnología Químicas
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oai_identifier_str oai:docta.ucm.es:20.500.14352/44802
network_acronym_str ES
network_name_str España
repository_id_str
spelling Pitch detackification with natural and modified talcsTijero Cruz, AntonioMonte Lara, María ConcepciónBlanco Suárez, María Ángeles66.0DetackinessDeposit formationDissolved and colloidal materialPapermakingPaper recyclingPitchPitch controlPulpTalcWood extractivesIngeniería química3303 Ingeniería y Tecnología QuímicasPitch deposition in the pulp or in different parts of the manufacturing system can lead to a decrease in the quality of the final paper produced and to manufacturing efficiency problems. Tackiness is the property of pitch which related to the deposit formation. One of the methods to control pitch deposition in the pulp and paper industry is the use of the talc. The talc acts primarily by a detackification mechanism and hence must be part of the deposit to control further deposition. The effectiveness of talc as control agent depends on its structural and surface characteristics, e.g. specific surface, surface energy, surface charge and ratio lypophilic/hydrophilic surface, being these related to its mineral composition and the thermal and surface treatments it has undergone. Five commercial talcs, corresponding to two groups of different mineralogical compositions, have been tested to determine their detackification capacity using the deposition tester developed by the Complutense University of Madrid. In this method, the quantification of the deposits is carried out by an image analysis (IA) of stainless steel collectors on which the deposit has formed. After IA a qualitative analysis to determine the deposit organic fraction is carried out by gas chromatography (CG) after deposit extraction. The detackification capacity is expressed as the reduction of the deposits formed on the collectors when the different talcs at several concentrations are added to the pulp suspensions. The results show that pitch detackiness by talc addition is related to talc concentration and surface properties of mineral, as for example chlorite proportion, surface area and surface treatment and to the adsorption capacity of pitch on talcs. The general conclusions are that the talc having the highest quantity of mineral talc presents the best detackification capability and that all talcs studied have an appreciable detackification reduction at low proportion of addition.Technical Association of the Pulp and Paper IndustryUniversidad Complutense de Madrid20112011-01-0120112011-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44802reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/448022026-06-02T12:44:21Z
dc.title.none.fl_str_mv Pitch detackification with natural and modified talcs
title Pitch detackification with natural and modified talcs
spellingShingle Pitch detackification with natural and modified talcs
Tijero Cruz, Antonio
66.0
Detackiness
Deposit formation
Dissolved and colloidal material
Papermaking
Paper recycling
Pitch
Pitch control
Pulp
Talc
Wood extractives
Ingeniería química
3303 Ingeniería y Tecnología Químicas
title_short Pitch detackification with natural and modified talcs
title_full Pitch detackification with natural and modified talcs
title_fullStr Pitch detackification with natural and modified talcs
title_full_unstemmed Pitch detackification with natural and modified talcs
title_sort Pitch detackification with natural and modified talcs
dc.creator.none.fl_str_mv Tijero Cruz, Antonio
Monte Lara, María Concepción
Blanco Suárez, María Ángeles
author Tijero Cruz, Antonio
author_facet Tijero Cruz, Antonio
Monte Lara, María Concepción
Blanco Suárez, María Ángeles
author_role author
author2 Monte Lara, María Concepción
Blanco Suárez, María Ángeles
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 66.0
Detackiness
Deposit formation
Dissolved and colloidal material
Papermaking
Paper recycling
Pitch
Pitch control
Pulp
Talc
Wood extractives
Ingeniería química
3303 Ingeniería y Tecnología Químicas
topic 66.0
Detackiness
Deposit formation
Dissolved and colloidal material
Papermaking
Paper recycling
Pitch
Pitch control
Pulp
Talc
Wood extractives
Ingeniería química
3303 Ingeniería y Tecnología Químicas
description Pitch deposition in the pulp or in different parts of the manufacturing system can lead to a decrease in the quality of the final paper produced and to manufacturing efficiency problems. Tackiness is the property of pitch which related to the deposit formation. One of the methods to control pitch deposition in the pulp and paper industry is the use of the talc. The talc acts primarily by a detackification mechanism and hence must be part of the deposit to control further deposition. The effectiveness of talc as control agent depends on its structural and surface characteristics, e.g. specific surface, surface energy, surface charge and ratio lypophilic/hydrophilic surface, being these related to its mineral composition and the thermal and surface treatments it has undergone. Five commercial talcs, corresponding to two groups of different mineralogical compositions, have been tested to determine their detackification capacity using the deposition tester developed by the Complutense University of Madrid. In this method, the quantification of the deposits is carried out by an image analysis (IA) of stainless steel collectors on which the deposit has formed. After IA a qualitative analysis to determine the deposit organic fraction is carried out by gas chromatography (CG) after deposit extraction. The detackification capacity is expressed as the reduction of the deposits formed on the collectors when the different talcs at several concentrations are added to the pulp suspensions. The results show that pitch detackiness by talc addition is related to talc concentration and surface properties of mineral, as for example chlorite proportion, surface area and surface treatment and to the adsorption capacity of pitch on talcs. The general conclusions are that the talc having the highest quantity of mineral talc presents the best detackification capability and that all talcs studied have an appreciable detackification reduction at low proportion of addition.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01
2011
2011-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44802
url https://hdl.handle.net/20.500.14352/44802
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Technical Association of the Pulp and Paper Industry
publisher.none.fl_str_mv Technical Association of the Pulp and Paper Industry
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422464095748096
score 15.301629

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