Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents

Detalhes bibliográficos
Autor(a) principal: Ferreira, Ana M.
Data de Publicação: 2022
Outros Autores: Sucena, Isa, Otero, Vanessa, Angelin, Eva Mariasole, Melo, Maria João, Coutinho, João A. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/133062
Resumo: UIDB/50011/2020 UIDP/50011/2020 CA18220, 2020.00647.CEECIND UIDB/50006/2020 UIDP/50006/2020
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spelling Pretreatment of plastic waste: Removal of colorants from hdpe using biosolventsAdditivesCircular economyClosed-loop recyclingDissolution-precipitationDyesHigh-density polyethylenePigmentsSolvent extractionAnalytical ChemistryChemistry (miscellaneous)Molecular MedicinePharmaceutical ScienceDrug DiscoveryPhysical and Theoretical ChemistryOrganic ChemistrySDG 7 - Affordable and Clean EnergySDG 8 - Decent Work and Economic GrowthSDG 12 - Responsible Consumption and ProductionUIDB/50011/2020 UIDP/50011/2020 CA18220, 2020.00647.CEECIND UIDB/50006/2020 UIDP/50006/2020Plastics recycling remains a challenge due to the relatively low quality of the recycled material, since most of the developed recycling processes cannot deal with the additives present in the plastic matrix, so the recycled products end up in lower-grade applications. The application of volatile organic solvents for additives removal is the preferred choice. In this study, pretreatment of plastic packaging waste to remove additives using biosolvents was investigated. The plastic waste used was high-density polyethylene (HDPE) with blue and orange colorants (pigment and/or dye). The first step was to identify the type of colorants present in the HDPE, and we found that both plastics presented only one colorant that was actually a pigment. Then, limonene, a renewable solvent, was used to solubilize HDPE. After HDPE dissolution, a wide range of alcohols (mono-, di-, and tri-alcohols) was evaluated as antisolvents in order to selectively precipitate the polymer and maximize its purity. The use of limonene as solvent for plastic dissolution, in combination with poly-alcohols with an intermediate alkyl chain length and a large number of hydroxyl (OH) groups, was found to work best as an antisolvent (1,2,3-propanetriol and 1,2,4-butanetriol), leading to a removal of up to 94% and 100% of the blue and orange pigments, respectively. Finally, three cycles of extraction were carried out, proving the capability of the solvent and antisolvent to be recovered and reused, ensuring the economic viability and sustainability of the process. This pretreatment provides a secondary source of raw materials and revenue for the recycling process, which may lead to an increase in the quality of recycled polymers, contributing to the development of an economical and sustainable recycling process.DCR - Departamento de Conservação e RestauroLAQV@REQUIMTEVICARTE - Vidro e Cerâmica para as ArtesRUNFerreira, Ana M.Sucena, IsaOtero, VanessaAngelin, Eva MariasoleMelo, Maria JoãoCoutinho, João A. P.2022-02-16T23:19:45Z2022-01-012022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/133062eng1420-3049PURE: 41793457https://doi.org/10.3390/molecules27010098info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:11:44Zoai:run.unl.pt:10362/133062Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:47:41.365189Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
title Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
spellingShingle Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
Ferreira, Ana M.
Additives
Circular economy
Closed-loop recycling
Dissolution-precipitation
Dyes
High-density polyethylene
Pigments
Solvent extraction
Analytical Chemistry
Chemistry (miscellaneous)
Molecular Medicine
Pharmaceutical Science
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry
SDG 7 - Affordable and Clean Energy
SDG 8 - Decent Work and Economic Growth
SDG 12 - Responsible Consumption and Production
title_short Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
title_full Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
title_fullStr Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
title_full_unstemmed Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
title_sort Pretreatment of plastic waste: Removal of colorants from hdpe using biosolvents
author Ferreira, Ana M.
author_facet Ferreira, Ana M.
Sucena, Isa
Otero, Vanessa
Angelin, Eva Mariasole
Melo, Maria João
Coutinho, João A. P.
author_role author
author2 Sucena, Isa
Otero, Vanessa
Angelin, Eva Mariasole
Melo, Maria João
Coutinho, João A. P.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv DCR - Departamento de Conservação e Restauro
LAQV@REQUIMTE
VICARTE - Vidro e Cerâmica para as Artes
RUN
dc.contributor.author.fl_str_mv Ferreira, Ana M.
Sucena, Isa
Otero, Vanessa
Angelin, Eva Mariasole
Melo, Maria João
Coutinho, João A. P.
dc.subject.por.fl_str_mv Additives
Circular economy
Closed-loop recycling
Dissolution-precipitation
Dyes
High-density polyethylene
Pigments
Solvent extraction
Analytical Chemistry
Chemistry (miscellaneous)
Molecular Medicine
Pharmaceutical Science
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry
SDG 7 - Affordable and Clean Energy
SDG 8 - Decent Work and Economic Growth
SDG 12 - Responsible Consumption and Production
topic Additives
Circular economy
Closed-loop recycling
Dissolution-precipitation
Dyes
High-density polyethylene
Pigments
Solvent extraction
Analytical Chemistry
Chemistry (miscellaneous)
Molecular Medicine
Pharmaceutical Science
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry
SDG 7 - Affordable and Clean Energy
SDG 8 - Decent Work and Economic Growth
SDG 12 - Responsible Consumption and Production
description UIDB/50011/2020 UIDP/50011/2020 CA18220, 2020.00647.CEECIND UIDB/50006/2020 UIDP/50006/2020
publishDate 2022
dc.date.none.fl_str_mv 2022-02-16T23:19:45Z
2022-01-01
2022-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/133062
url http://hdl.handle.net/10362/133062
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1420-3049
PURE: 41793457
https://doi.org/10.3390/molecules27010098
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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