OH I see. The lead and the calcium could also drop down with ammonium sulfate. The lead can be removed with potassium chromate. a calcium/strontium mix may be separated in concentrated Hydrochloric acid. I know barium chloride is VERY insoluble in 37% HCl but strontium chloride I think has low solubility.
The 48% HF sounds scary :) But is a necessity in decomposing silicates
I like it! I want that industrial sized Beckman/Coulter centerfuge!! Granite has alot of ferrous iron which reduces the nitric acid to NOX vapors. If you don't have a $1 million lab, could just decant liquor from iron oxide then add ammonium sulfate to precipitate strontium? What other metals are in granite?
Apart from iron the main metals are calcium, potassium, rubidium, magnesium, uranium, and lead. It's only 100 ppm Sr (I wasn't after Sr per se but natural Sr with a very high 87Sr/86Sr ratio, which this granite has). My yield was poor, only about 5%, but good enough. I'll look into using ammonium sulfate next time I do it. Thanks.
Used centrifuges are a dime a dozen around here. Well, not literally, but you can usually get one for under $100.
this dude sure knows what he's doing
dooviss 1 year ago
makes me think if its possible to do strontium chlorate out of strontium chloride ^^ damn man thats alot of stuff o.O
antiswattt3 1 year ago
OH I see. The lead and the calcium could also drop down with ammonium sulfate. The lead can be removed with potassium chromate. a calcium/strontium mix may be separated in concentrated Hydrochloric acid. I know barium chloride is VERY insoluble in 37% HCl but strontium chloride I think has low solubility.
The 48% HF sounds scary :) But is a necessity in decomposing silicates
j822bosh 3 years ago
I like it! I want that industrial sized Beckman/Coulter centerfuge!! Granite has alot of ferrous iron which reduces the nitric acid to NOX vapors. If you don't have a $1 million lab, could just decant liquor from iron oxide then add ammonium sulfate to precipitate strontium? What other metals are in granite?
j822bosh 3 years ago
Apart from iron the main metals are calcium, potassium, rubidium, magnesium, uranium, and lead. It's only 100 ppm Sr (I wasn't after Sr per se but natural Sr with a very high 87Sr/86Sr ratio, which this granite has). My yield was poor, only about 5%, but good enough. I'll look into using ammonium sulfate next time I do it. Thanks.
Used centrifuges are a dime a dozen around here. Well, not literally, but you can usually get one for under $100.
Caforty 3 years ago
Very cool extraction. I'd like some full arm gloves though!
ducati929 3 years ago