Chrome-containing refractories in the slag zone of the electrothermal furnace of zinc recovery plant

Refractories ◽  
1974 ◽  
Vol 15 (7-8) ◽  
pp. 429-433
Author(s):  
S. M. Zubakov ◽  
T. V. Demikhova ◽  
�. N. Yusupova ◽  
Z. K. Kairbaeva ◽  
I. V. Basina ◽  
...  
Keyword(s):  
Zinc Recovery ◽  
Recovery Plant ◽  
Slag Zone

scholarly journals Critical importance of pH and collector type on the flotation of sphalerite and galena from a low-grade lead–zinc ore

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abdolrahim Foroutan ◽  
Majid Abbas Zadeh Haji Abadi ◽  
Yaser Kianinia ◽  
Mahdi Ghadiri
Keyword(s):  
Iron Ore ◽  
Low Grade ◽  
Zinc Recovery ◽  
Flotation Process ◽  
Ph Values ◽  
Lead And Zinc ◽  
Optimum Ph ◽  
Iron And Zinc ◽  
Lead Zinc ◽  
Zinc Concentrate

AbstractCollector type and pulp pH play an important role in the lead–zinc ore flotation process. In the current study, the effect of pulp pH and the collector type parameters on the galena and sphalerite flotation from a complex lead–zinc–iron ore was investigated. The ethyl xanthate and Aero 3418 collectors were used for lead flotation and Aero 3477 and amyl xanthate for zinc flotation. It was found that maximum lead grade could be achieved by using Aero 3418 as collector at pH 8. Also, iron and zinc recoveries and grades were increased in the lead concentrate at lower pH which caused zinc recovery reduction in the zinc concentrate and decrease the lead grade concentrate. Furthermore, the results showed that the maximum zinc grade and recovery of 42.9% and 76.7% were achieved at pH 6 in the presence of Aero 3477 as collector. For both collectors at pH 5, Zinc recovery was increased around 2–3%; however, the iron recovery was also increased at this pH which reduced the zinc concentrate quality. Finally, pH 8 and pH 6 were selected as optimum pH values for lead and zinc flotation circuits, respectively.

Maximization of the power production in LNG cold energy recovery plant via genetic algorithm

2021 ◽  
Vol 38 (2) ◽  
pp. 380-385
Author(s):  
Moon Jeong ◽  
Eun-Bi Cho ◽  
Hun-Soo Byun ◽  
Choon-Hyoung Kang
Keyword(s):  
Genetic Algorithm ◽  
Energy Recovery ◽  
Power Production ◽  
Recovery Plant ◽  
Cold Energy

Analysis of an accident at a solvent recovery plant

1999 ◽  
Vol 67 (2) ◽  
pp. 145-161
Author(s):  
Valerio Cozzani ◽  
Giuliano Nardini ◽  
Luigi Petarca ◽  
Severino Zanelli
Keyword(s):  
Solvent Recovery ◽  
Recovery Plant

scholarly journals Carbothermic Reduction of Zinc Containing Industrial Wastes: A Kinetic Model

2021 ◽  
Author(s):  
M. Leuchtenmueller ◽  
C. Legerer ◽  
U. Brandner ◽  
J. Antrekowitsch
Keyword(s):  
Mass Transfer ◽  
Zinc Oxide ◽  
Kinetic Model ◽  
Large Scale ◽  
Industrial Wastes ◽  
Oxide Reduction ◽  
Transfer Coefficients ◽  
Metallothermic Reduction ◽  
Metal Bath ◽  
Zinc Recovery

AbstractEffective recycling of zinc-containing industrial wastes, most importantly electric arc furnace dust, is of tremendous importance for the circular economy of the steel and zinc industry. Herein, we propose a comprehensive kinetic model of the combined carbothermic and metallothermic reduction of zinc oxide in a metal bath process. Pyro-metallurgical, large-scale lab experiments of a carbon-saturated iron melt as reduction agent for a molten zinc oxide slag were performed to determine reaction constants and accurately predict mass transfer coefficients of the proposed kinetic model. An experimentally determined kinetic model demonstrates that various reactions run simultaneously during the reduction of zinc oxide and iron oxide. For the investigated slag composition, the temperature-dependent contribution of the metallothermic zinc oxide reduction was between 25 and 50 pct of the overall reaction mechanism. The mass transfer coefficient of the zinc oxide reduction quadrupled from 1400 °C to 1500 °C. The zinc recovery rate was > 99.9 pct in all experiments.

Zinc recovery from the effluent of the viscose industry with carboxylic cation exchangers

1971 ◽  
Vol 2 (1) ◽  
pp. 92-93
Author(s):  
V. S. Morgenshtern ◽  
L. N. Matorenok
Keyword(s):  
Zinc Recovery ◽  
Cation Exchangers
Sign in / Sign up

Export Citation Format

Share Document