Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies (Contributo in atti di convegno) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Beolchini F.; Fonti V.; Ferella F.; Ubaldini S.; Vegliò F. (2009)
  Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies
  in 1st International Conference Biotechnologies and Metals, Kosice, Slovak Republic, September 24th - 25th, 2009
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Beolchini F.; Fonti V.; Ferella F.; Ubaldini S.; Vegliò F. (literal)

Pagina inizio

• 11 (literal)

Pagina fine

• 14 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• Prodotto digitalizzato (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

• Proceedings of the 1st International Conference Biotechnologies and Metals (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• Proceedings of the 1st International Conference Biotechnologies and Metals, Edited by Jana Kadukova, Alena Luptakova, Maria Prascakova, Hedviga Horvathova, ISBN: 978-80-553-0236-2, pp. 11-14, Kosice, Slovak Republic, September 24th – 25th, 2009. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Francesca Beolchini,1 Viviana Fonti,1 Francesco Ferella,2 Stefano Ubaldini,3 Francesco Vegliò2 1 Dept. of Marine Sciences, Polytechnic University of Marche, Ancona Italy; 2 Dept. of Chemistry, Chemical Engineering and Materials, Univ. of L'Aquila, Italy; 3 IGAG-CNR, Rome, Italy; (literal)

Titolo

• Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 978-80-553-0236-2 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriVolume

• Edited by Jana Kadukova, Alena Luptakova, Maria Prascakova, Hedviga Horvathova (literal)

Abstract

• This paper deals with bioleaching of metals from hazardous spent hydro-processing catalyst by means of iron/sulphur oxidizing bacteria. The effects on nickel, vanadium and molybdenum extraction yields of elemental sulphur, ferrous iron and actions contrasting a possible metal toxicity (either the presence of powdered activated charcoal or the simulation of a cross current process by means of filtration stages in series) was investigated. Ferrous iron resulted to be essential for metals extraction and for bacteria adaptation. Nickel and vanadium were successfully bioleached in the presence of iron, reaching extraction yields of 83% and 90%, respectively; on the other hand extractions around 50% for nickel and vanadium were observed both in biological systems in the absence of iron and in the chemical controls with iron. As concerns molybdenum, the highest extraction yields experimentally observed for molybdenum was about 50%, after 26 days bioleaching in the presence of iron, while a maximum extraction of 25 % was observed in the other treatments. In conclusion, a bio-oxidative attack with iron could successfully extract nickel, vanadium and partially molybdenum. Further actions aimed at contrasting a possible metal toxicity resulted not to be effective. The obtained results supported the important role of the indirect mechanism in bioleaching of LC-Finer catalysts and allowed the authors to propose a flowsheet for metal extraction from such waste by means of biohydrometallurgical technologies. (literal)

Prodotto di

• Recupero di metalli pesanti da acque reflue (TA.P07.014.008) (Modulo)
• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Trattamento dei materiali geologici; tecniche e sicurezza degli scavi; recupero dei materiali di scarto (TA.P07.015.001) (Modulo)

Autore CNR

• STEFANO UBALDINI (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Trattamento dei materiali geologici; tecniche e sicurezza degli scavi; recupero dei materiali di scarto (TA.P07.015.001) (Modulo)
• Recupero di metalli pesanti da acque reflue (TA.P07.014.008) (Modulo)

Autore CNR di

• STEFANO UBALDINI (Unità di personale interno)

Insieme di parole chiave di

• Parole chiave di "Nickel, vanadium and molybdenum extraction from exhaust LC-finer catalysts by biohydrometallurgical technologies" (Insieme di parole chiave)