METHODS FOR PREPARATION OF ABSORBENT MICROSPHERICAL TANNIN RESIN

被引：22
|
作者：
YAMAGUCHI, H
HIGUCHI, M
SAKATA, I
机构：
[1] Faculty of Agriculture, Kyushu University, Fukuoka, 812, Higashi‐ku
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1992年 / 45卷 / 08期
关键词：
D O I：
10.1002/app.1992.070450814
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Tannin beads formed by reaction of Mimosa tannin (condensed-type tannin) with formaldehyde in nonpolar polybutenous medium were microspherical resins. Resins prepared with 37.5% tannin concentration were porous spherical resins with 139.22 m2/g of surface area (adsorption method of iodine in n -hexane, 2.1 m2/g for the dried beads by the Braunauer-Emett-Teller (BET) method) and were strong enough to withstand use on a column. The spherical resin adsorbed 3.7 mmol of Cr6+ ions per one gram dry weight of resin (by batch method), this adsorption being comparable to commercial adsorbent.
引用
收藏
页码：1455 / 1462
页数：8
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