KINETICS OF THE CHLORINATION OF PYRITE IN AQUEOUS SUSPENSION

被引：12

作者：

BAYRAKCEKEN, S ^{[1
]}

YASAR, Y ^{[1
]}

COLAK, S ^{[1
]}

机构：

[1] ATATURK UNIV,DEPT CHEM ENGN,ERZURUM,TURKEY

来源：

HYDROMETALLURGY | 1990年 / 25卷 / 01期

关键词：

D O I：

10.1016/0304-386X(90)90062-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The kinetics of chlorination of pyrite in aqueous suspension have been investigated. The effects of pyrite particle size (106-125, 125-150, 150-180, 180-250, 250-425 μm), reaction time (0-14400 s), temperature (13-60°C), and speed of stirring (5-20 s-1) were studied. The experimental data were analyzed on the basis of the unreacted shrinking core model. The rate-controlling step was found to be the chemical reaction between chlorine and pyrite for the temperature range 13-35°C, but the diffusion of chlorine through the fluid film for the temperature range 40-60°C. The activation energies for the chemical- and diffusion-controlled cases were calculated as 36.7 and 3.7 kJ mol-1 respectively. © 1990.

引用

页码：27 / 36

页数：10

共 50 条

[1] KINETICS OF THE OZONATION OF PYRITE IN AQUEOUS SUSPENSION
HWANG, CC
STREETER, RC
YOUNG, RK
SHAH, YT
[J]. FUEL, 1987, 66 (11) : 1574 - 1578
[2] KINETICS OF THE OZONATION OF PYRITE IN AQUEOUS SUSPENSION.
Hwang, Charles C.
Streeter, Robert C.
Young, Ronald K.
Shah, Yatish T.
[J]. 1600, (66):
[3] KINETICS OF PYRITE OXIDATION IN AQUEOUS SUSPENSION BY NITRIC-ACID
KADIOGLU, YY
KARACA, S
BAYRAKCEKEN, S
[J]. FUEL PROCESSING TECHNOLOGY, 1995, 41 (03) : 273 - 287
[4] Chlorination kinetics of pyrite mineral in two Turkish lignites
Karaca, S
Kadioglu, YY
Bayrakceken, S
Gulaboglu, MS
[J]. FUEL PROCESSING TECHNOLOGY, 1997, 50 (2-3) : 225 - 234
[5] KINETICS OF SULFIDIZATION OF IRON-OXIDE IN LATERITE AND KINETICS OF PYRITE CHLORINATION
IMBERT, FE
BOLSAITIS, P
NAGATA, K
[J]. ACTA CIENTIFICA VENEZOLANA, 1977, 28 : 110 - 110
[6] A KINETIC STUDY OF THE OXIDATION OF PYRITE IN AQUEOUS SUSPENSION
MCKAY, DR
HALPERN, J
[J]. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1958, 212 : 301 - 309
[7] KINETICS OF CHLORINATION OF ACETONE IN AQUEOUS SOLUTION
BELL, RP
YATES, K
[J]. JOURNAL OF THE CHEMICAL SOCIETY, 1962, (MAY): : 1927 - &
[8] AQUEOUS CHLORINATION KINETICS OF SUBSTITUTED DIHYDROXYBENZENES
OLSON, TM
REBENNE, LM
GONZALEZ, A
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1995, 210 : 216 - ENVR
[9] SLURRY-PHASE CHLORINATION OF IRON PYRITE IN AQUEOUS AND ORGANIC MEDIA
VASILAKOS, NP
GAGE, C
[J]. FUEL, 1986, 65 (04) : 593 - 594
[10] KINETICS OF CHLORINATION OF DIETHYL MALONATE IN AQUEOUS SOLUTION
BELL, RP
YATES, K
[J]. JOURNAL OF THE CHEMICAL SOCIETY, 1962, (JUN): : 2285 - &

← 1 2 3 4 5 →