Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 6    No. 3    September 1996

[PDF Download]    [Flash Online]

    

SEPARATION OF Ta AND Nb BY EXTRACTION WITH SEC-OCTANOL-HF-H2SO4 SYSTEM
Chen Huifang,He Wannian, Zhang Yuqi

Beijing General Research Institute for Nonferrous Metals, Beijing100088

Abstract:Research work for the technology of separation of Ta and Nb with extraction by means of secondary octanol-HF-H2SO4 system has been conducted. When the material acidity was HF 4 mol/L and H2SO4 4mol/L, the distribution ratios of Ta and Nb were 15·0 and 3·2 correspondingly ,and Ta and Nb were extracted simultaneously into the organic phase; while at a lower acidity ,the sec-octanol system has a stronger extracting power for Ta than for Nb. When the material acidity was HF 1 mol/L and H2SO41.5 mol/L, the distribution ratios of Ta and Nb were 6·85 and 0·032 respectively, and the separation coefficient went up to 214,which resulted in a good separation of Ta and Nb.

 

Key words: sec-octanol Ta Nb extraction

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f-ysxb@mail.csu.edu.cn