Micropelletization of Ironmaking and Steelmaking Dust and Recycling of the Micropellets

2019 ◽  
Author(s):  
M. Andrade ◽  
N. Ma ◽  
W. Sammon
Keyword(s):  
Steelmaking Dust

scholarly journals High-Performance Method of Recovery of Metals from EAF Dust—Processing without Solid Waste

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6061
Author(s):  
Stanisław Małecki ◽  
Krzysztof Gargul ◽  
Marek Warzecha ◽  
Grzegorz Stradomski ◽  
Artur Hutny ◽  
...  
Keyword(s):  
Solid Waste ◽  
High Performance ◽  
Coal Dust ◽  
Iron Alloy ◽  
Waste Minimization ◽  
Zinc Recovery ◽  
Ecological Requirements ◽  
Eaf Dust ◽  
Input Material ◽  
Steelmaking Dust

A highly effective method of the processing of steelmaking dust in an arc-resistant furnace has been presented. The aim of the research was to investigate the possibility of processing steelmaking dust in terms of waste minimization and selective recovery of valuable components. For this purpose, an electric arc resistance furnace was used. Granulated steelmaking dust with reducer (coal dust) was the input material. The products of the process are zinc oxide, iron alloy and slag, with properties meeting high ecological requirements. The technology does not generate solid waste. Zinc recovery is over 99% and iron recovery over 98%. The content of heavy metals (Zn + Pb + Cu) in glassy slag is below 0.2%, which ensures very low leachability.

scholarly journals Kinetics of the Fluidised Oxidation of Zinc Sulphide Concentrates with an Addition of Inert Materials/ Kinetyka Fluidalnego Utleniania Siarczkowych Koncentratów Cynku Z Dodatkiem Materiałów Obojętnych

2014 ◽  
Vol 59 (4) ◽  
pp. 1367-1372 ◽  
Author(s):  
P. Jarosz ◽  
S. Małecki
Keyword(s):  
Maximum Degree ◽  
Kinetic Equations ◽  
Kinetic Studies ◽  
Zinc Sulphide ◽  
Inert Material ◽  
Oxide Addition ◽  
Degree Of Oxidation ◽  
Steelmaking Dust ◽  
Kinetics Of ◽  
Sulfide Concentrate

Abstract This paper presents the results of the kinetic studies of the zinc sulfide concentrate oxidation with the addition of inert, ZnO-containing materials. It was observed that about 15% of zinc oxide addition, obtained from steelmaking dust, improves the rate and maximum degree of oxidation of the concentrate. Kinetic equations of the process were determined, and the activation energy for various additions of inert material was calculated

scholarly journals On the Equipments and the Operation of the Plant for the Treatment of Steelmaking Dust.

1966 ◽  
Vol 52 (9) ◽  
pp. 1306-1308
Author(s):  
Hiroshi YOSHIDA ◽  
Toshiharu KIKUCHI ◽  
Wataru IWAHASHI ◽  
Shaji FUKUTOME ◽  
Takeshi OGASAWARA
Keyword(s):  
Steelmaking Dust

Separation of ZnO from the Stainless Steelmaking Dust and Graphite Mixture by Microwave Irradiation

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Yun Zhou ◽  
Liushun Wu ◽  
Jue Wang ◽  
Haichuan Wang ◽  
Yuanchi Dong
Keyword(s):  
Zinc Oxide ◽  
Iron Oxide ◽  
Removal Efficiency ◽  
Microwave Treatment ◽  
Heating Time ◽  
Oxide Content ◽  
Stainless Steelmaking Dust ◽  
Reduction Efficiency ◽  
Steelmaking Dust ◽  
Power Microwave

AbstractIn this study, microwave was used to treat stainless steelmaking dust containing zinc oxide. The effects of heating time, carbon content and zinc oxide content on the removal efficiency of zinc oxide and the reduction efficiency of iron oxide were investigated. Experimental results show that, for the sample with 16% (mass percent, the same below) graphite heated for 10 minutes by 10 kW power microwave, the removal efficiency of zinc oxide is between 80% and 90% and the metallization ratio of iron oxide is between 40% and 60%; Initial zinc oxide content has a slight effect on the removal efficiency of zinc oxide. The results indicate microwave treatment is one of the feasible ways to process metallurgical solid waste containing the metal with low boiling point.

Research on Steelmaking Dust Based on Difference of Mn,Fe and Mo Vapor Pressure

2011 ◽  
Vol 284-286 ◽  
pp. 1216-1222 ◽  
Author(s):  
Rong Zhu ◽  
Xiu Rong Bi ◽  
Ming Lv ◽  
Run Zao Liu ◽  
Xiang Bao
Keyword(s):  
Energy Spectrum ◽  
Vapor Pressure ◽  
Molten Pool ◽  
Induction Furnace ◽  
Element Distribution ◽  
Smelting Process ◽  
Microscopic Structure ◽  
Dust Generation ◽  
Study Characteristics ◽  
Steelmaking Dust

Based on difference of Mn，Fe and Mo vapor pressure，Fe-Mn，Fe-Mo alloys were added into induction furnace and steelmaking dust was collected during smelting process，whose granularity was analyzed by granulometer，microscopic structure and energy spectrum were analyzed by SEM to study characteristics of dust and ulteriorly to explore mechanism of dust generation. It was showed that the mechanism of dust generation was “evaporation theory” and “bubble theory”，dust lied in evaporation had uniform distribution，granularity and element distribution，Mn/Fe ratio of dust was larger than that in molten pool. However, dust caused by spitting or bubbles from molten metal surface had remarkable aggregation，nonuniform granularity and element segregation，Mn/Fe ratio was equal to that in molten pool.

scholarly journals Molybdenum recovery from steelmaking dust with an alkali water leaching process.

1990 ◽  
Vol 106 (8) ◽  
pp. 479-483 ◽  
Author(s):  
Kazuyoshi SHIMAKAGE ◽  
Takanori SUZUKI ◽  
Tadao SATO
Keyword(s):  
Water Leaching ◽  
Leaching Process ◽  
Steelmaking Dust

Recovery of heavy metals from steelmaking dust

1983 ◽  
Vol 2 (3) ◽  
pp. 184-187 ◽  
Author(s):  
E. Radha Krishnan
Keyword(s):  
Heavy Metals ◽  
Steelmaking Dust

Waste poly (vinyl chloride) pyrolysis with hydrogen chloride abatement by steelmaking dust

2016 ◽  
Vol 70 (7) ◽  
Author(s):  
Jakub Korpas ◽  
Václav Slovák ◽  
Kamil Wichterle
Keyword(s):  
Experimental Study ◽  
Zinc Oxide ◽  
Hydrogen Chloride ◽  
Vinyl Chloride ◽  
Material Balance ◽  
Pyrolysis Process ◽  
Temperature Range ◽  
Poly Vinyl Chloride ◽  
Steelmaking Dust

AbstractExperimental study on PVC-based materials (PVC = poly (vinyl chloride)) pyrolysis; in the presence of various amounts of steelmaking dust was performed. Dust from steel manufacture employing zinc plated scrap contains a considerable amount of zinc oxide (ZnO) and its utilization in metallurgy is quite complicated. However, the dust can react with hydrogen chloride (HCl) released from heated PVC in the temperature range of 200–400°C. Material balance of the pyrolysis process was studied by thermogravimetry, and the data obtained were compared with the results of larger laboratory oven experiments. In excess of PVC, the amount of captured HCl stoichiometrically corresponds to the content of ZnO; additional HCl is probably captured by FeCl

Sign in / Sign up

Export Citation Format

Share Document