Banca de DEFESA: ANDERSON PARODIA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANDERSON PARODIA
DATA : 22/07/2016
HORA: 08:30
LOCAL: Anfiteatro B do Centro de Ciências Exatas e da Terra (CCET)
TÍTULO:

Processing, characterization and pilarization of brazilian natural clay.

PALAVRAS-CHAVES:

Clay, Pillared Clay, Benefit.

PÁGINAS: 105
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
RESUMO:

Four clays from deposits located in the northern state of Paraiba, Brazil, were processed in order to decrease the amount of impurities naturally presented in these materials. Later these materials were characterized along with a commercial natural clay sample and subjected to a pillaring procedure with aluminum polihidroxide. By X-ray diffraction, it was noted that the benefit samples (CN Clara, CN Cinza, Bofe and FCN) showed a basal spacing of approximately 1.5 nm, while the natural commercial sample showed a value of approximately 1.3 nm, after pillaring these values were ~ 1.7 nm for the benefits sample and ~ 1.8 nm for the commercial sample. The sample Bofe showed a value of 126 m²/g of specific area, which is the highest value found among natural samples, commercial natural sample showed a value of 27 m²/g being the smallest value. After pillarization the sample that showed the highest specific area was the AP01 sample (pillared from commercial natural sample), with a value of 248 m²/g while the AP05 sample (pillared from FCN sample) had the lowest value being 177 m²/g. Thus it is seen that the determination of the characteristics of natural clays and its origin influence the results obtained through the pillaring procedure.

MEMBROS DA BANCA:
Externo à Instituição - LUIZ CARLOS BERTOLINO - UERJ
Externo à Instituição - MANUEL KARIM SAPAG - UNL
Interno - 1350249 - RUBENS MARIBONDO DO NASCIMENTO
Presidente - 1308577 - SIBELE BERENICE CASTELLA PERGHER