RECOVERY OF URANIUM FROM SEAWATER BY COMPOSITE FIBER ADSORBENT

被引：19

作者：

KOBUKE, Y ^{[1
]}

AOKI, T ^{[1
]}

TANAKA, H ^{[1
]}

TABUSHI, I ^{[1
]}

KAMAISHI, T ^{[1
]}

HAGIWARA, I ^{[1
]}

机构：

[1] TORAY INDUSTRIES LTD,POLYMERS RES LABS,OTSU 520,JAPAN

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1990年 / 29卷 / 08期

关键词：

D O I：

10.1021/ie00104a014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We developed a composite fiber adsorbent (CFA) to entrap finely powdered amidoxime into fibrils of supporting material with silica in a previous report. This was further tested for uranyl recovery directly from seawater. The adsorption rate showed a flow rate dependence with almost a saturation value of ~100 pg of U/g of CFA at a mean flow rate of sea current. Chemical as well as physical deterioration was overcome by using 1 N NaHC03 and 0.72 M NaCl as liberating and washing agents, to keep the pH and ionic strength, respectively, constant, and the initial adsorption rate was maintained even after a recycle time of 50. A continuous passage of seawater showed a linear increase of the adsorption to afford 1560 pg of U/g of CFA after 3 weeks. © 1990, American Chemical Society. All rights reserved.

引用

页码：1662 / 1668

页数：7

共 11 条

[1] RECOVERY OF URANIUM FROM SEAWATER .5. PREPARATION AND PROPERTIES OF THE MACRORETICULAR CHELATING RESINS CONTAINING AMIDOXIME AND OTHER FUNCTIONAL-GROUPS [J].