Vermicular kaolinite relics in fly ash derived from Bokaro and Jharia coals (Jharkhand, India)

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

B. Valentim (Autor) FCUP; Flores, D (Autor) FCUP; Guedes, A (Autor) FCUP; Shreya, N (Autor) Outra; Paul, B (Autor) Outra; Ward, CR (Autor) Outra

Revista

Título: International Journal of Coal Geology

Vol. 162

Páginas: 151-157

ISSN: 0166-5162

Editora: Elsevier

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 9 Citações

Outras Informações

ID Authenticus: P-00K-JRY

DOI: 10.1016/j.coal.2016.06.011

Abstract (EN): During a study of fly ash from two pulverized fuel power plants (Bokaro and Chandrapura) burning coal from the Bokaro Coalfield in Jharkand state, India, glassy and vermicular mineral forms were found associated with the char. A combination of optical microscopy, XRD, SEM/EDS, and XRF analysis has shown that this morphotype, reported here for the first time, originated from kaolinite that expanded during heating inside the furnace chamber under relatively low combustion temperatures. The morphotype has an internal structure that resembles the fanning-out structure formed during vermicular kaolinite development.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7