Bateia

Multi tool use
Multi tool use





Disambig grey.svg Nota: Para outros significados, veja Bateia (desambiguação).



Bateia de metal


Uma bateia é um utensílio usado na mineração em pequena escala, geralmente em depósitos de sedimentos em cursos de água, para a obtenção de concentrados de minérios metálicos, sobretudo os preciosos, como o ouro ou diamante.[1] Ao colocar-se uma pequena quantidade de sedimento na bateia e adicionar-se alguma água, procede-se à agitação da mistura através dum movimento aproximadamente circular.[2] Tal agitação, conjugada com a diferença de densidade entre os minérios metálicos e os restantes sedimentos, permite efectuar a separação daqueles.


Presumivelmente, a palavra provém do grego batiaca (“espécie de taça de beber, copo”), que, através do árabe, dá origem ao termo português bátega, que é uma antiga bacia de metal.[1]



Referências




  1. ↑ ab Miguel Nimer, Carlos Augusto Calil (2005). Influências orientais na língua portuguesa: os vocábulos árabes, arabizados, persas e turcos. [S.l.]: EdUSP. 660 páginas. ISBN 9788531407079 


  2. ↑ Walmir Farias dos Santos (2011). Goela da Ema. [S.l.]: Biblioteca24horas. 186 páginas. ISBN 9788578937690 





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