Object-oriented simulation of hydrometallurgical processes .2. Application to the Bayer process

被引：6

作者：

Kiranoudis, CT ^{[1
]}

Voros, NG ^{[1
]}

Kritikos, T ^{[1
]}

Maroulis, ZB ^{[1
]}

MarinosKouris, D ^{[1
]}

Papassiopi, N ^{[1
]}

Dimitropoulou, O ^{[1
]}

Paspaliaris, I ^{[1
]}

Kontopoulos, A ^{[1
]}

机构：

[1] NATL TECH UNIV ATHENS, DEPT MIN & MET ENGN, GR-15780 ATHENS, GREECE

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1997年 / 28卷 / 05期

关键词：

Material Transaction; Aluminum Hydroxide; Caustic Soda; Sodium Aluminate; Crystal Size Distribution;

D O I：

10.1007/s11663-997-0005-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The steady-state process simulator developed by Kiranoudis et al. has been used for the detailed simulation of the Bayer process flowsheet. It consists of the digestor/flash section as well as the precipitation and washing circuits. Advanced hydrometallurgical process models for the specific unit operations involved were developed and are appropriately described. The simulation studies mainly focus on studying the overall effects of certain design parameters on the entire plant efficiency. The overall performance of the bauxite digestion section is greatly and positively affected by the free-soda concentration of the feed liquor, the corresponding concentration of solid particles, and the operation temperature of the circuit. Precipitation of alumina in crystallizers is greatly affected by the corresponding soda concentration of the washing unit product stream, indicating the importance of this section, Furthermore, ambient temperature is important to the precipitation kinetics, influencing negatively the quantitative precipitation but resulting in particle populations of higher mean diameter.

引用

页码：785 / 793

页数：9

共 10 条

[1] CHEN CC, 1982, LIGHT MET, V6, P295
[2] CLERIN P, 1988, T AIME, V12, P111
[3] CRISTOL B, 1983, TRAVAUX, V13, P18
[4] Object-oriented simulation of hydrometallurgical processes .3. Application to leaching of laterites and pyrites
Kiranoudis, CT
Voros, NG
Kritikos, T
Maroulis, ZB
MarinosKouris, D
Papassiopi, N
Dimitropoulou, O
Paspaliaris, I
Kontopoulos, A
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1997, 28 (05): : 795 - 804
[5] Object-oriented simulation of hydrometallurgical processes .1. Requirements and implementation
Kiranoudis, CT
Voros, NG
Kritikos, T
Maroulis, ZB
MarinosKouris, D
Papassiopi, N
Dimitropoulou, O
Paspaliaris, I
Kontopoulos, A
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1997, 28 (05): : 777 - 784
[6] MCINTOSH P, 1991, LIGHT MET, V15, P156
[7] MISRA C, 1971, CHEMECA, V70, P52
[8] MULLER TB, 1979, LIGHT MET, V3, P530
[9] STEEMSON ML, 1984, LIGHT MET, V8, P239
[10] WARGALLA G, 1981, LIGHT MET, V5, P232

← 1 →