…By repeating this process, it is possible to obtain nearly pure methyl alcohol, but the amount obtained would probably only be about 1g. The next ingenious idea was the batch distillation column shown in Figure b. A 100g aqueous solution was placed in the lower flask or can and heated, and the vapor coming out of the top of the column was condensed and returned to the top of the column (reflux). Since the liquid is at a low temperature, when it comes into contact with the vapor rising from below, some of the vapor is condensed. … *Some of the terminology used to refer to "batch distillation column" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このような方法を繰り返せば,純粋に近いメチルアルコールを得ることはできるが,その量はおそらく1g程度しか得られないであろう。 そこで,次にくふうされたのが図のbのような回分蒸留塔である。下方のフラスコまたは缶にやはり100gの水溶液を入れて加熱し,塔頂から出てきた蒸気を凝縮させて,それを再び塔頂に戻す(還流)と,その液は温度が低いので,下から上ってくる蒸気と接触すると蒸気の一部を凝縮させる。… ※「回分蒸留塔」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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