How To Recover Platinum Group Metals From Dental Scrap Pt4
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- เผยแพร่เมื่อ 11 ต.ค. 2024
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How To Recover Platinum Group Metals From Dental Scrap Pt1
• How To Recover Platinu...
How To Recover Platinum Group Metals From Dental Scrap Pt2
• How To Recover Platinu...
How To Recover Platinum Group Metals From Dental Scrap Pt3
• How To Recover Platinu...
I evaporate to dryness by mistake. Then I rehydrate the solution with hydrochloric acid and a little heat. Then filter the solution and reduce by evaporation to 20ml per gram of material. After cooling, I add a saturated solution of ammonium chloride to precipitate any platinum. But instead of platinum I get a thick precipitate of Pd2 needle like crystals. These are undesirable so I redissolve with some warm dilute hydrochloric acid.
