The solubility of ZnO and ZnAl2O4 in cryolite melts

被引：15
|
作者：
Dewing, EW
Rolseth, S
Stoen, L
Thonstad, J
机构：
[1] Norwegian Univ Sci & Technol, Inst Ind Electrochem, N-7034 Trondheim, Norway
[2] Fdn Sci & Ind Res, Trondheim, Norway
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1997年 / 28卷 / 06期
关键词：
Material Transaction; Alumina Content; Cryolite; Dissolution Reaction; Zinc Aluminate;
D O I：
10.1007/s11663-997-0065-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The solubilities of ZnO and ZnAl2O4 in cryolite-alumina melts at 1020 degrees C have been measured. ZnAl2O4 is the stable solid phase at Al2O3 contents greater than 1.45 +/- 0.2 wt pet. The results can be represented (in terms of wt pet Zn in solution and in the range 1.2 to 13.6 pet Al2O3) by log (pet Zn) = 0.491 + 1.90 log (pet Al2O3) where (pet Al2O3) includes the alumina formed by the dissolution reaction. The results are discussed in terms of the variation of the activity of alumina with its concentration and are consistent with the dissolution mechanism: 3ZnO + 2AlF(3) = 3ZnF(2) + Al2O3 The activity coefficient of ZnF2 in dilute solution with respect to a pure liquid standard state is 0.14.
引用
收藏
页码：1099 / 1101
页数：3
相关论文
共 50 条
  • [1] The solubility of ZnO and ZnAl2O4 in cryolite melts
    Ernest W. Dewing
    S. Rolseth
    L. Støen
    J. Thonstad
    Metallurgical and Materials Transactions B, 1997, 28 : 1099 - 1101
  • [2] Solubility of ZnO and ZnAl2O4 in cryolite melts
    Dewing, E.W.
    Rolseth, S.
    Stoen, L.
    Thonstad, J.
    1997, Minerals, Metals & Materials Soc (TMS), Warrendale, PA, United States (28):
  • [3] Fabrication and Photocatalytic Properties of Novel ZnO/ZnAl2O4 Nanocomposite with ZnAl2O4 Dispersed Inside ZnO Network
    Zhao, Xiaofei
    Wang, Lei
    Xu, Xin
    Lei, Xiaodong
    Xu, Sailong
    Zhang, Fazhi
    AICHE JOURNAL, 2012, 58 (02) : 573 - 582
  • [4] ZnO/ZnAl2O4 prepared by calcination of ZnAl layered double hydroxides for ethanol sensing
    Guan, Mei-Yu
    Xu, Dong-Mei
    Song, Yu-Fei
    Guo, Ying
    SENSORS AND ACTUATORS B-CHEMICAL, 2013, 188 : 1148 - 1154
  • [5] Transformation of anisole over ZnAl2O4 and Fe2O3/ZnAl2O4 catalysts
    Grabowska, H
    Zawadzki, M
    Syper, L
    APPLIED CATALYSIS A-GENERAL, 2004, 265 (02) : 221 - 227
  • [6] Enhanced photoluminescence of single crystalline ZnO nanotubes in ZnAl2O4 shell
    Cha, Hyun Gil
    Kang, Dong In
    Kwon, Tae Ha
    Kang, Young Soo
    CRYSTENGCOMM, 2012, 14 (04): : 1205 - 1209
  • [7] Solubility of FeO and FeAl2O4 in cryolite-alumina melts
    Jentoftsen, TE
    Thonstad, J
    Dewing, EW
    Haarberg, GM
    MOLTEN SALTS XII, PROCEEDINGS, 2000, 99 (41): : 473 - 484
  • [8] Photocatalytic degradation and inactivation of Escherichia coli by ZnO/ZnAl2O4 with heteronanostructures
    Zhang, Li
    Yan, Jian-hui
    Zhou, Min-jie
    Yu, Yan-ping
    Liu, Ye
    Liu, You-nian
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2014, 24 (03) : 743 - 749
  • [9] Solubility of NiO and NiAl2O4 in cryolite-alumina melts
    Lorentsen, OA
    Thonstad, J
    Dewing, EW
    MOLTEN SALTS XII, PROCEEDINGS, 2000, 99 (41): : 428 - 440
  • [10] Investigation of g-C3N4/ZnAl2O4 and ZnO/ZnAl2O4 nanocomposites: From synthesis to photocatalytic activity of pollutant dye model
    Suwanboon, Sumetha
    Amornpitoksuk, Pongsaton
    Rattana, Tanattha
    Randorn, Chamnan
    CERAMICS INTERNATIONAL, 2020, 46 (14) : 21958 - 21977
12345