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首页> 外文期刊>Journal of Applied Polymer Science >PERVAPORATION SEPARATION OF BINARY ORGANIC-AQUEOUS LIQUID MIXTURES USING CROSSLINKED POLY(VINYL ALCOHOL) MEMBRANES .4. METHANOL-WATER MIXTURES
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PERVAPORATION SEPARATION OF BINARY ORGANIC-AQUEOUS LIQUID MIXTURES USING CROSSLINKED POLY(VINYL ALCOHOL) MEMBRANES .4. METHANOL-WATER MIXTURES

机译：使用交联的聚（乙烯醇）膜渗透分离二元有机水混合物.4。甲醇-水混合物

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The pervaporation separation of methanol-water (M/W) mixtures was carried out using crosslinked poly(vinyl alcohol) (PVA) membranes with the low molecular weight of poly(acrylic acid) (PAA) as the crossinking agent. The PVA/PAA ratio in the crosslinked membrane was 90/10, 85/15, and 80/20 by weight. The operating temperatures were 50, 60, and 70 degrees C, and the compositions of methanol-water mixtures to be separated were 70/30, 80/20, 90/10, and 95/5 (M/W) solutions. In all cases, the PVA/PAA = 80/20 membrane showed the best results. For M/W = 90/10 solution, the separation factor, alpha(u/m) = 465, and the permeation rate, 0.109 kg/m(2)h, at 70 degrees C were obtained using the PVA/PAA = 80/20 menbrane. The permeation rate and the separation factor for M/W = 95/5 solution showed 0.033 kg/m(2)h and alpha(w/m) = 2650, respectively, when PVA/PAA = 80/20 membrane was used. (C) 1996 John Wiley & Sons, Inc. [References: 9]
机译：甲醇-水（M / W）混合物的全蒸发分离是使用低分子量聚丙烯酸（PAA）作为交联剂的交联聚乙烯醇（PVA）膜进行的。交联膜中的PVA / PAA比为90 / 10、85 / 15和80/20重量％。操作温度为50、60和70摄氏度，要分离的甲醇-水混合物的组成为70 / 30、80 / 20、90 / 10和95/5（M / W）溶液。在所有情况下，PVA / PAA = 80/20膜均显示最佳结果。对于M / W = 90/10的溶液，使用PVA / PAA = 80获得了70摄氏度下的分离因子alpha（u / m）= 465和渗透率0.109 kg / m（2）h。 / 20膜当使用PVA / PAA = 80/20膜时，M / W = 95/5溶液的渗透率和分离系数分别显示为0.033 kg / m（2）h和alpha（w / m）= 2650。 （C）1996 John Wiley＆Sons，Inc. [参考：9]

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