Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil

Mano, E.S. Universidade de São Paulo. Escola Politécnica. Brasil.

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Detalles Bibliográficos
Autores principales: Mano, E.S., Pinto Chaves, Arthur
Formato: Documento de Conferencia Aceptado conferenceObject
Lenguaje:Portugués
Publicado: 2022
Materias:
process mineralogy
barite
froth flotation
Acceso en línea:https://riaa-tecno.unca.edu.ar/handle/123456789/399
Aporte de:
RIAA - Repositorio Institucional de Acceso Abierto (FTyCA-UNCA) de Universidad Nacional de Catamarca
id I80-R217-123456789-399
record_format dspace
spelling I80-R217-123456789-3992024-10-22T23:46:19Z Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil Mano, E.S. Pinto Chaves, Arthur process mineralogy barite froth flotation Mano, E.S. Universidade de São Paulo. Escola Politécnica. Brasil. Pinto Chaves, Arthur. Universidade de São Paulo. Escola Politécnica. Brasil. Barite is a barium sulphate mineral (BaSO4) with high specific weight (4.5 g/cm3). It is specially used as a drilling fluid in oil and gas exploration, to suppress high formation pressures and to prevent blowouts. Two samples of Contendas of Sincorá – Bahia State – Brazil, were studied in order to develop a mineral processing route to recover barite. The mineral characterization (X-ray fluorescence and X-ray diffractometry analysis) revealed that the samples are composed respectively of 55 and 75% of barite; however, their SiO2 contents were considered high, varying from 40 to 25% (weight %). A gravity separation process was proposed due to the large difference of specific weights between quartz and barite with values of 2.65 and 4.5, respectively. The sinking and floating tests were performed on the ore sieved at screen of 6.35, 1.19 and 0.149 mm. Bromoform was used as a heavy liquid (2.89 g mL-1). The results showed that 90% of the material was concentrated in the sunk product, suggesting that quartz is still associated to barite, probably by liberation problems. Therefore, the samples were crushed to <0.149 mm (100# Tyler) and submitted to froth flotation tests. The reverse flotation of quartz did not reveal good results since quartz was still associated to barite in the depressed product. Thus, a direct froth flotation of barite was carried out and the results showed an improvement of the barite concentrate. The metallurgical recoveries obtained were 64 and 76% (weight percent) with 82% and 85% of barite content. 2022-09-28T23:12:09Z 2022-09-28T23:12:09Z 2018-10 Documento de Conferencia Aceptado conferenceObject https://riaa-tecno.unca.edu.ar/handle/123456789/399 por Acceso Abierto https://creativecommons.org/licenses/by-nc-sa/4.0/deed.es application/pdf ARG XIV Jornadas Argentinas de Tratamiento de Minerales
institution Universidad Nacional de Catamarca
institution_str I-80
repository_str R-217
collection RIAA - Repositorio Institucional de Acceso Abierto (FTyCA-UNCA)
language Portugués
topic process mineralogy
barite
froth flotation
spellingShingle process mineralogy
barite
froth flotation
Mano, E.S.
Pinto Chaves, Arthur
Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
topic_facet process mineralogy
barite
froth flotation
description Mano, E.S. Universidade de São Paulo. Escola Politécnica. Brasil.
format Documento de Conferencia
Aceptado
conferenceObject
author Mano, E.S.
Pinto Chaves, Arthur
author_facet Mano, E.S.
Pinto Chaves, Arthur
author_sort Mano, E.S.
title Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
title_short Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
title_full Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
title_fullStr Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
title_full_unstemmed Caracterização e processamento mineral da barita de contendas do sicorá – Bahia - Brazil
title_sort caracterização e processamento mineral da barita de contendas do sicorá – bahia - brazil
publishDate 2022
url https://riaa-tecno.unca.edu.ar/handle/123456789/399
work_keys_str_mv AT manoes caracterizacaoeprocessamentomineraldabaritadecontendasdosicorabahiabrazil
AT pintochavesarthur caracterizacaoeprocessamentomineraldabaritadecontendasdosicorabahiabrazil
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