EFFECT OF PHENOL AND RESORCINOL ON LEACHING OF ILMENITE WITH HCL-CH3OH AND HCL-C2H5OH SOLUTIONS

被引:1
|
作者
GIRGIN, I
TURKER, L
GOODALL, D
机构
[1] MIDDLE E TECH UNIV,DEPT CHEM,ANKARA,TURKEY
[2] UNIV LEEDS,DEPT INORGAN & STRUCT CHEM,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND
关键词
D O I
10.1016/0301-7516(91)90023-C
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effects of phenols on hydrochloric acid leaching of metal oxides is investigated theoretically. A mathematical model is developed for the early stages of leaching assuming that steady state conditions and Fick's first law are valid for the formation and diffusion of metal cations through the Helmholtz-Stern interface. It is found theoretically that the leaching rate is exponentially proportional to acid and phenol concentrations and any metal-phenol complex which can be decomposed by chloride ions should considerably increase the leaching rate by playing a role of active transport. Otherwise, phenols are expected to have a synergistic effect on the hydrochloric acid leaching of metal oxides. The validity of this theoretical approach is checked by examining the effect of phenol and resorcinol on HCl-CH3OH and HCl-C2H5OH leaching of ilmenite at 3 M HCl concentration. The mathematical model is verified by regression analysis of the data collected.
引用
收藏
页码:147 / 159
页数:13
相关论文
共 50 条
  • [1] THE DISSOLUTION OF ILMENITE IN HCL-H2O, HCL-CH3OH AND HCL-C2H5OH SYSTEMS - A THEORETICAL APPROACH
    TURKER, L
    GIRGIN, I
    GOODALL, D
    [J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 1988, 24 (3-4) : 173 - 184
  • [2] LEACHING OF ILMENITE IN HCL-H2O, HCL-CH3OH-H2O AND HCL-CH3OH SOLUTIONS
    GIRGIN, I
    [J]. HYDROMETALLURGY, 1990, 24 (01) : 127 - 134
  • [3] Dissolution of La2O3 in HCl-H2O, HCl-CH3OH-H2O and HCl-CH3OH solutions
    Yörükoglu, A
    Girgin, I
    [J]. HYDROMETALLURGY, 2001, 61 (03) : 185 - 194
  • [4] DISSOLUTION CHARACTERISTICS OF SCHEELITE IN HCL-C2H5OH-H2O AND HCL-C2H5OH SOLUTIONS
    GIRGIN, I
    ERKAL, F
    [J]. HYDROMETALLURGY, 1993, 34 (02) : 221 - 230
  • [5] Leaching of non-treated ilmenite by HCl-CH3OH-H2O mixture and its kinetics
    Habib, MA
    Biswas, RK
    Ali, MR
    Hasan, AKM
    [J]. INDIAN JOURNAL OF CHEMICAL TECHNOLOGY, 2006, 13 (01) : 53 - 59
  • [6] ION-EXCHANGE IN HCL, NH2OH.HCL AND N2H4.2HCL SOLUTIONS
    TOHYAMA, I
    OTOZAI, K
    [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1977, 286 (3-4): : 198 - 201
  • [7] SPINNABILITY OF SI(OC2H5)4-C2H5OH-H2O-HCL SOLUTIONS
    ZHOU, WC
    XU, YD
    ZHANG, LT
    SUN, XM
    MA, JZ
    SHE, SY
    [J]. MATERIALS LETTERS, 1992, 13 (2-3) : 166 - 168
  • [8] Anodic ionization of copper in iso-C3H7OH-H2O-HCl solutions
    Tsygankova, LE
    Berdnikova, GG
    Vigdorovich, VI
    Mashkova, TP
    [J]. RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 1998, 34 (08) : 760 - 765
  • [9] State-to-state dynamics of the Cl+CH3OH→HCl+CH2OH reaction
    Bechtel, HA
    Camden, JP
    Zare, RN
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2004, 120 (09): : 4231 - 4239
  • [10] Quantum Monte Carlo study of the reaction:: Cl+CH3OH→CH2OH+HCl
    Kollias, AC
    Couronne, O
    Lester, WA
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (03): : 1357 - 1363