Autor(es):
Coelho, A. V. Pinto 
Data: 2008
Identificador Persistente: http://hdl.handle.net/10362/1471
Origem: Repositório Institucional da UNL
Assunto(s): Aluminium ore; nepheline syenite; Monchique; Portugal
Detalhes do Documento
O problema da extracção do alumínio a partir dos sienitos nefelínicos
Descrição
Some countries producers of the aluminium, attempt to use other ores which, in the future, will gradually substitute the bauxite as a raw material. Portugal possesses an nephelinic syenite massif which may be utilized for this purpose because the nepheline offers some advantages above other poor ores which are being essayed now. By laboratorial processes, the author puts forward those advantages and calls the attention for the necessity of to accomplish essays about the nepheline (by the acid's method) and realize petrographic's detailed reconnaissances of the Monchique syenitic massif.
Some countries producers of the aluminium, attempt to use other ores which, in the future, will gradually substitute the bauxite as a raw material. Portugal possesses an nephelinic syenite massif which may be utilized for this purpose because the nepheline offers some advantages above other poor ores which are being essayed now. By laboratorial processes, the author puts forward those advantages and calls the attention for the necessity of to accomplish essays about the nepheline (by the acid's method) and realize petrographic's detailed reconnaissances of the Monchique syenitic massif.
Tipo de Documento
Artigo
Idioma Português
Idioma Português
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