文献类型：期刊文献

中文题名：板栗苞单宁提取物用于锗离子络合剂的研究

英文题名：Chestnut Shell Tannin Extract Used as Complexing Agent of Germanium Ion

作者：杜运平[1,2,3,4] 秦清[1,2,3,4] 徐浩[1,2,3,4] 张宗和[5] 黄嘉玲[5] 陈文文[1,2,3,4] 陶林[5]

第一作者：杜运平

机构：[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]南京龙源天然多酚合成厂

年份：2012

卷号：32

期号：2

起止页码：66-70

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD_E2011_2012】；

基金：国家林业局林业公益性行业科研专项(201004013)

语种：中文

中文关键词：板栗苞单宁提取物;络合剂;锗

外文关键词：chestnut shell tannin extract; complexing agent; germanium

分类号：TQ35

摘要：锗在半导体材料、金属材料、红外光学、光纤通讯及生物医药等领域有着广泛的应用。采用通常废弃的板栗苞为原料制备的板栗苞单宁提取物为络合剂,用于提取稀有金属锗的研究。分别考察了反应时间、反应温度、板栗苞单宁提取物用量、pH值、ZnSO4质量浓度等单因素对板栗苞单宁用于络合锗的影响,并通过正交试验得出最佳工艺条件:pH值2.5,单宁提取物用量为锗离子质量的36倍,ZnSO4质量浓度110 g/L。在此条件下25℃反应30 min沉锗率可达99.0%。
Germanium was widely used in the semiconductor materials,metal materials,infrared optics,optical communications,biomedicals,etc.In this study chestnut shell tannin extract that was prepared from usually abandoned chestnut shell as raw material,was used as a complexing precipitant of geranium ion.The effects of reaction time,reaction temperature,the amount of chestnut shell tannin extract,pH value,ZnSO4 concentration during complexing precipitation were tested respectively.According to single factor and orthogonal experiment results,the optium experimental conditions were as follows：pH value 2.5,the amount of tannin extract to（36 times of germanium）,ZnSO4 content of 110 g/L.Under these conditions,the recovery of germanium was up to 99.0%.