Extraction of oxalic acid from solutions of electrolyte mixture |
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| Authors: | V N Lebedev |
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| Institution: | (1) Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, Apatity, Murmansk oblast, Russia |
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| Abstract: | Extraction of oxalic acid with tributyl phosphate and triisoamyl phosphate from solutions of its mixtures with nitric, phosphoric, sulfuric, and hydrochloric acid and with ammonium nitrate and chloride was studied. In the extractability series, oxalic acid occupies the position between nitric and phosphoric acids, with sulfuric and hydrochloric acids acting as strong salting-out agents. Nitric acid salts drastically decrease the distribution ratios of oxalic acid. |
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