Good stuff CORNBRED! One question though. Why would you bother processing material where you don't recover enough REE and/or consume too much acid or the other expensive reagents you talk about in impurity extraction? Surely that's why HRE focuses only on their good stuff and how much of it there might be?
Second question. Where did you get the 2.6x cost difference between hydrochloric and sulphuric acid?
Ann: Presentation to AIG Rare Earths Discussion Forum, page-15
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