巻号一覧
21 巻, 3 号
選択された号の論文の4件中1～4を表示しています
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堺 嘉之1967 年 21 巻 3 号 p. 85-89
発行日: 1967年
公開日: 2013/02/19
ジャーナル フリーPDF形式でダウンロード (10145K) -
イオン交換法かん水の利用に関する試験 (第4報)松尾 哲男, 天神 信美1967 年 21 巻 3 号 p. 90-98
発行日: 1967年
公開日: 2013/02/19
ジャーナル フリーFive kinds of brines described below were continuously evaporated with a view to making a study on the elevation of their boiling points, the changes of their composition, and the separation of their sodium chloride.
These five kinds of brines were (1) brine harvested from the saltfield,(2) brine produced by using anion and cation selective membranes,(3) brine obtained bymixing (1) with (2),(4) brine consi-dered to be obtainable on the assumption that selectivities of ion-exchange membranles to divalent ions would be much more improved in the future, and (5) brine obtained by mixing (4) with (1)
1. In case brines (1) and (2) were of the same salinity, brine (1) indicated a lower elevation of boiling point as compared with brine (2). Among the aqueous solutions of the component salts of brines, the aqueous solution of magnesium sulfate showed the lowest elevation and that of magnesium chloride showed the highest elevation at the same salinity. Therefore, it was because brine (1) contained magnesium sulfate that it indicated a lower elevation of its boiling point although it contained a large amount of magnesium chloride.
2. At the present time, magnesium chloride has the most powerful influence upon the separation of sodium chloride. In the future, however, potassium chloride is supposed to take its place. Even if brine (1) is mixed with brine (2), there is no advantages for the separation of sodium chloride.
3. At the standard point, the concentration of calcium sulfate was (3)>(1)>(2). Among these brines, the higher was the ratio of brine (2) to (1), the higher was the concentration of calcium sulfate. The order of the completion of calcium sulfate separation was (1),(3), and (2) by the influence of sulfate ion.
4. During the concentration by evaporation of brines, potassium chloride was not separated. In the actual manufacture of salt, there seems to be no possibility of potassium chloride separation.抄録全体を表示PDF形式でダウンロード (19355K) -
加水分解膜に関する研究 (第1報)安積 敬嗣, 白子 忠男, 堂野 礼三, 高嶋 四郎1967 年 21 巻 3 号 p. 98-103
発行日: 1967年
公開日: 2013/02/19
ジャーナル フリーThe present paper is concerned with the electrolysis of sodium chloride solution by means of double membrane which is made for this particular purpose by combining cation selective membrane and anion selective membrane.
The result of the research can be summarized as follows;
1) The hydrolyzing efficiency decrease in proportion to the decrease of current density, and to the in crease of the concentration of sodium chloride solution.
2) The current efficiency decreases in proportion to the duration of electrolysis.
3) The change of temperature has very little influence upon the hydrolyzing efficiency.
Special consideration was given to the study of the diffusion of sodium chloride and hydrochloric acid into each of the membranes, so that the change of hydrolyzing efficiency could be discussed and elucidated.抄録全体を表示PDF形式でダウンロード (12789K) -
膜構造と2価イオン非透過性に関する研究 (第1報)渡辺 政孝, 飯田 一夫, 中山 弘子, 須藤 久子1967 年 21 巻 3 号 p. 103-110
発行日: 1967年
公開日: 2013/02/19
ジャーナル フリーアルキレンアミン型陰イオン交換樹脂膜の網目構造と, 2価イオン非透過性との関係を検討した.
1) 基材には鎖長の異なる脂環型エポキシ樹脂を用い, また橋かけ剤にも鎖長の異なるものを用いた.
2) 製膜法は橋かけ剤として, ブトキシ化ピスフエノールを用いるBBP法と, トリオキシメチレンを用いるTOM法によって製膜した.
3) 網目構造は硬化条件によって変化させその粗密は煮沸含水率によって推定した.
4) 長鎖樹脂と短鎖橋かけ剤. 短鎖樹脂と長鎖橋かけ剤の組み合せによる陰イオン交換樹脂膜は, 網目構造の密な点で膜抵抗は極大となり, 2価イオン透過性は極小となる. これに反し, 長鎖樹脂と長鎖橋かけ剤, 短鎖樹脂と短鎖橋かけ剤の組合せのものは, 網目構造の密な点と2価イオン透過性の低い点とが一致しなかった.抄録全体を表示PDF形式でダウンロード (14675K)
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