Sentences with phrase «amount of alumina»
Still, given the limited amount of alumina that could be required, it's far from certain such a health risk would be a genuine concern.
https://www.sciencemag.org/ Not exact matches
The residue, also known as red mud, is what's left over after extracting the alumina from the bauxite and can include small amounts of toxic metals like arsenic and lead.
The practice is common in aluminum production, where the smelting process uses vast amounts of electricity to create aluminum metal from alumina.
«This breakthrough is significant as not only is the alumina more pure than its commercial counterpart, it could also reduce the amount of aluminium foil going to landfill while also sidestepping the environmental damage associated with mining bauxite.»
But these arguments are a far cry from claims that contrails are really «chemtrails,» that thousands of commercial planes aren't «merely» emitting massive amounts of CO2 but, for example, are deliberately spraying alumina.