トリ‐ｎ‐オクチルアミンのトルエン溶液による有機酸の抽出平衡

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タイトル別名
  • Extraction Equilibrium of Organic Acids by Toluene Solution of Tri-n-Octylamine.
  • トリ n オクチルアミン ノ トルエン ヨウエキ ニヨル ユウキサン ノ チュ

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The extraction equilibrium of acetic acid, malic acid, citric acid and lactic acid with tri-n-octylamine as extractant in toluene were measured at 303 K. Under this experimental condition, all fatty acids were not distributed in toluene.<BR>Organic acid, A, reacts with TOA, B, to form ion complexes in toluene. The formed complex species and equilibrium constants were estimated by graphical analysis. The complexes are AB (n=1-6) for acetic acid, (AB)n (n=1, 5) for malic acid, (AB) n (n=1, 6) for citric acid, and AnBm ((n≥m)n= 1, 2, 3, 4, 5/m=1, 2) for lactic acid, respectively. The experimental results could be explained by the proposed reaction models and the equilibrium constants were estimated.

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