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

ZHONGGUO YOUSEJINSHU XUEBAO

第17卷    第6期    总第99期    2007年6月

[PDF全文下载]        

    

文章编号:1004-0609(2007)06-1019-05
直接电脱氧法制备金属锆
郭春芳,董云会,于先进,李德刚,张丽鹏

(山东理工大学 化学工程学院,淄博 255049)

摘 要: 800 下的CaCl2-NaCl混合熔盐中,以烧结后的ZrO2片体作阴极,高纯石墨碳棒作阳极,在工作电压3.1 V时,采用直接电脱氧法制备金属锆。研究不同烧结温度和压实压力对阴极片体的微观形貌及其对电脱氧反应过程的影响,并利用XRD谱分析电脱氧产物的相组成。结果表明:采用直接电脱氧法可以制备金属锆;16 MPa1 000 时制备的阴极片电脱氧反应的平均稳定电流最大;产物中既含有锆的低价氧化物ZrO2?x,也含有锆钙氧化物CaZrO3

 

关键字: 二氧化锆;锆;直接电脱氧

Preparation of zirconium by direct electrodeoxidation
GUO Chun-fang, DONG Yun-hui, YU Xian-jin, LI De-gang, ZHANG Li-peng

School of Chemical Engineering, Shandong University of Technology, Zibo 255049, China

Abstract: Direct electrodeoxidation was used to prepare metal zirconium in a CaCl2-NaCl melt at 800 ℃ and 3.1 V, using sintered ZrO2 pellets as cathode, and high pure graphite rods as anode. The effects of the sintering temperature and pressure on the micro-morphology of the ZrO2 cathode were investigated. The composition of production of above-mentioned samples was analyzed by XRD. The results show that the metal zirconium can be prepared by this method, and that the electrodeoxidation current of ZrO2 cathode is the biggest under the pressure of 16 MPa and sintering temperature of 1 000 ℃, and also ZrO2?x and CaZrO3 exist in the product.

 

Key words: zirconium dioxide; zirconium; direct electrodeoxidation

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@163.com