Compositions and Methods for Controlling pH in Metal Flotation Processes
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United States of America Patent
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Oct 28, 2021
app pub date -
Jul 26, 2019
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Jul 30, 2018
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Abstract
Compositions for adjusting the pH of sea water to be useful in metal floatation processes are described, as are methods utilizing such compositions. Precipitation of insoluble magnesium salts interferes with pH adjustment of sea water when conventional sources of CaO and/or Ca(OH)2 are used, however addition of nonreactive particulates (such as waste materials from industrial processes) permits use of such low quality sources of CaO/Ca(OH)2 and reduces consumption of high quality CaO/Ca(OH)2 for this purpose.
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