Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction

Detalhes bibliográficos
Autor(a) principal: M. J. Ferreira
Data de Publicação: 2000
Outros Autores: E. Xará, Manuel Fonseca Almeida, M. Barla, J. Ferrer
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/44154
Resumo: Chromium is the basis of leather manufacture and its extractable reserves are limited in distribution, mainly in South Africa, Zimbabwe and ex-USSR countries. Almost 20% of the metal is used by the chemical industry where one third of it goes into leather production as chromium sulphate tanning agent.(1) The European Union depends on chromium imports. After burning leather scrap-tanned with chromium sulphate-the resulting very rich chromium ashes may present chromium(VI) in such a concentration that it becomes a hazardous waste and needs careful handling.(2,3) Thus, both economic and environmental reasons suggest the use of these ashes. This paper mainly summarizes some of the conclusions of the research carried out during the execution of CRAFT project BRST-CT96-5085, where leather incineration ashes generated by two different pilot combustion systems, respectively a fixed grill incinerator (FGI) and a fluidized bed incinerator (FBI) were characterized and chromium was leached using a mixed pyrometallurgical and hydrometallurgical route as well as a full hydrometallurgical route.
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spelling Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extractionChromium is the basis of leather manufacture and its extractable reserves are limited in distribution, mainly in South Africa, Zimbabwe and ex-USSR countries. Almost 20% of the metal is used by the chemical industry where one third of it goes into leather production as chromium sulphate tanning agent.(1) The European Union depends on chromium imports. After burning leather scrap-tanned with chromium sulphate-the resulting very rich chromium ashes may present chromium(VI) in such a concentration that it becomes a hazardous waste and needs careful handling.(2,3) Thus, both economic and environmental reasons suggest the use of these ashes. This paper mainly summarizes some of the conclusions of the research carried out during the execution of CRAFT project BRST-CT96-5085, where leather incineration ashes generated by two different pilot combustion systems, respectively a fixed grill incinerator (FGI) and a fluidized bed incinerator (FBI) were characterized and chromium was leached using a mixed pyrometallurgical and hydrometallurgical route as well as a full hydrometallurgical route.20002000-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/44154eng0144-0322M. J. FerreiraE. XaráManuel Fonseca AlmeidaM. BarlaJ. Ferrerinfo: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:RCAAP2024-01-12T01:24:47Zoai:repositorio-aberto.up.pt:10216/44154Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:23:31.048443Repositório 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 Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
title Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
spellingShingle Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
M. J. Ferreira
title_short Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
title_full Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
title_fullStr Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
title_full_unstemmed Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
title_sort Using ashes from incineration of chromium sulphate tanned leather scrap - Part 1: Characterization of ashes and chromium extraction
author M. J. Ferreira
author_facet M. J. Ferreira
E. Xará
Manuel Fonseca Almeida
M. Barla
J. Ferrer
author_role author
author2 E. Xará
Manuel Fonseca Almeida
M. Barla
J. Ferrer
author2_role author
author
author
author
dc.contributor.author.fl_str_mv M. J. Ferreira
E. Xará
Manuel Fonseca Almeida
M. Barla
J. Ferrer
description Chromium is the basis of leather manufacture and its extractable reserves are limited in distribution, mainly in South Africa, Zimbabwe and ex-USSR countries. Almost 20% of the metal is used by the chemical industry where one third of it goes into leather production as chromium sulphate tanning agent.(1) The European Union depends on chromium imports. After burning leather scrap-tanned with chromium sulphate-the resulting very rich chromium ashes may present chromium(VI) in such a concentration that it becomes a hazardous waste and needs careful handling.(2,3) Thus, both economic and environmental reasons suggest the use of these ashes. This paper mainly summarizes some of the conclusions of the research carried out during the execution of CRAFT project BRST-CT96-5085, where leather incineration ashes generated by two different pilot combustion systems, respectively a fixed grill incinerator (FGI) and a fluidized bed incinerator (FBI) were characterized and chromium was leached using a mixed pyrometallurgical and hydrometallurgical route as well as a full hydrometallurgical route.
publishDate 2000
dc.date.none.fl_str_mv 2000
2000-01-01T00:00:00Z
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 https://hdl.handle.net/10216/44154
url https://hdl.handle.net/10216/44154
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0144-0322
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
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