Kinetics and mechanism of the chalcopyrite-pyrite concentrate oxidation process

被引：0
|
作者：
Zivkovic, ZD
Mitevska, N
Savovic, V
机构：
[1] COPPER INST, YU-19210 BOR, YUGOSLAVIA
[2] COPPER SMELTER & REFINERY, YU-19210 BOR, YUGOSLAVIA
来源：
THERMOCHIMICA ACTA | 1996年 / 283卷
关键词：
activation energy; chalcopyrite-pyrite concentrate; DTA-TG-DTG; oxidation mechanism; oxidative roasting; sulphide concentrate; X-ray diffraction;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The results of comparative DTA-TG-DTG analysis of the chalcopyrite-pyrite concentrate oxidative roasting process are presented in this paper. The chemistry of the process characteristic of the system investigated is defined on the basis of comparative analysis of chemical potential change in the log p(so2)-log p(o2) diagram, X-ray analysis of oxidation products at 723, 873 and 1273 K and DTA-TG-DTG results. The activation energy values for the investigated processes are determined on the basis of DTA-TG-DTG results obtained for different heating rates by the methods of Kissinger and Ozawa.
引用
收藏
页码：121 / 130
页数：10
相关论文
共 50 条
  • [21] Kinetics of pyrite, pyrrhotite, and chalcopyrite dissolution by Acidithiobacillus ferrooxidans
    Kocaman, Ayse Tuba
    Cemek, Mustafa
    Edwards, Katrina Jane
    CANADIAN JOURNAL OF MICROBIOLOGY, 2016, 62 (08) : 629 - 642
  • [22] LEACHING OF GOLD FROM PYRITE AND CHALCOPYRITE CONCENTRATE USING ACIDIFIED THIOUREA
    GABRA, G
    CIM BULLETIN, 1984, 77 (866): : 51 - 51
  • [23] OVERALL KINETICS OF CHALCOPYRITE OXIDATION
    CHAUBAL, PC
    SOHN, HY
    JOURNAL OF METALS, 1983, 35 (12): : 84 - 84
  • [24] OVERALL KINETICS OF CHALCOPYRITE OXIDATION
    CHAUBAL, PC
    SOHN, HY
    JOURNAL OF METALS, 1984, 36 (12): : 67 - 67
  • [25] THE KINETICS AND MECHANISM OF THE PROCESS OF NICKEL OXIDATION
    ZIVKOVIC, ZD
    BLECIC, D
    THERMOCHIMICA ACTA, 1985, 93 (SEP) : 327 - 331
  • [26] KINETICS AND MECHANISM OF CHALCOPYRITE FORMATION
    COWPER, M
    RICKARD, D
    CHEMICAL GEOLOGY, 1988, 70 (1-2) : 77 - 77
  • [27] Mechanism of organic depressant CTP on separation of pyrite and chalcopyrite
    Zhongguo Youse Jinshu Xuebao, 1 (122-125):
  • [28] Kinetics of pyrite oxidation and denitrification
    Torrento, C.
    Cama, J.
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2008, 72 (12) : A952 - A952
  • [29] Effect of externally adding pyrite and electrical current on galvanic leaching of chalcopyrite concentrate
    Asgari, Kaveh
    Hassanzadeh, Ahmad
    Nazari, Sabereh
    Vakylabad, Ali Behrad
    Hosseinzadeh, Mostafa
    PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2021, 57 (02): : 106 - 120
  • [30] DISSOLUTION KINETICS OF CHALCOPYRITE CONTAINING PYRITE IN WATER SATURATED WITH CHLORINE
    COLAK, S
    ALKAN, M
    KOCAKERIM, MM
    HYDROMETALLURGY, 1987, 18 (02) : 183 - 193
12345