Recovery of Iron from High-Iron Hot Rolled Mill Scales by Direct Reduction Technique

Purpose. To substantiate the efficiency of processing hematite raw materials at the Krivoy Rog Mining and Processing Plant of Oxidized Ores using the direct reduction technology itmk3®. Metodology. Analysis of the results of the itmk3® direct restoration technology developed by Kobe Steel Ltd., Japan and Hares Engineering GmbX, Austria, with a view to using it to process Krivbass hematite ores into granulated iron (so-called “nuggets”). Findings. The involvement in the production of hematite ores (oxidized quartzite) of Krivbass with high iron content, but with low magnetic properties for their processing into granular cast iron is grounded. Originality. The use of itmk3® direct reduction technology from Kobe Steel Ltd., Japan and Hares Engineering GmbH, Austria for the processing of Krivbass hematite ores into granular cast iron is justified for the first time. Practical value. The efficiency of the use of hematite ores (oxidized quartzite) has been substantiated, which can significantly reduce the costs in the mining cycle for the economical production of metallurgical products.

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Influence of coal sort on the direct reduction of high-iron-content red mud

Journal of Central South University of Technology ◽

10.1007/bf02652003 ◽

1995 ◽

Vol 2 (2) ◽

pp. 27-31 ◽

Cited By ~ 3

Author(s):

Guanzhou Qiu ◽

Yongkang Liu ◽

Tao Jiang ◽

Yuehua Hu

Keyword(s):

Red Mud ◽

Iron Content ◽

Direct Reduction ◽

High Iron Content ◽

High Iron

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95/05130 Studies on the nucleation and grain growth characteristics of metallic phase in direct reduction of high-iron red mud with coal base

Fuel and Energy Abstracts ◽

10.1016/0140-6701(95)96881-c ◽

1995 ◽

Vol 36 (5) ◽

pp. 361

Keyword(s):

Grain Growth ◽

Red Mud ◽

Direct Reduction ◽

Metallic Phase ◽

Growth Characteristics ◽

High Iron

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Efficient improvement for the direct reduction of high-iron red mud by co-reduction with high-manganese iron ore

Minerals Engineering ◽

10.1016/j.mineng.2021.107024 ◽

2021 ◽

pp. 107024

Author(s):

Junying Wan ◽

Tiejun Chen ◽

Xianlin Zhou ◽

Yanhong Luo ◽

Wei Liu ◽

...

Keyword(s):

Red Mud ◽

Iron Ore ◽

Direct Reduction ◽

High Manganese ◽

High Iron ◽

Co Reduction

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Nuggets Production by Direct Reduction of High Iron Red Mud

Journal of Iron and Steel Research International ◽

10.1016/s1006-706x(13)60092-8 ◽

2013 ◽

Vol 20 (5) ◽

pp. 24-27 ◽

Cited By ~ 25

Author(s):

Yu-hua Guo ◽

Jian-jun Gao ◽

Hong-jun Xu ◽

Kai Zhao ◽

Xue-feng Shi

Keyword(s):

Red Mud ◽

Direct Reduction ◽

High Iron

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Direct Reduction Technique for Superomedial Dome Impaction in Geriatric Acetabular Fractures

Journal of Orthopaedic Trauma ◽

10.1097/bot.0b013e318298ef0a ◽

2014 ◽

Vol 28 (2) ◽

pp. e39-e43 ◽

Cited By ~ 21

Author(s):

G-Yves Laflamme ◽

Jonah Hebert-Davies

Keyword(s):

Direct Reduction ◽

Reduction Technique ◽

Acetabular Fractures

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A SIMPLE METHOD FOR THE DETERMINATION OF NITRATE IN ACIDIC SOLUTIONS WITH HIGH IRON CONTENT BASED ON THE TRADITIONAL CADMIUM REDUCTION TECHNIQUE

Latin American Applied Research - An international journal ◽

10.52292/j.laar.2014.453 ◽

2014 ◽

Vol 44 (4) ◽

pp. 283-288

Author(s):

D. A. NICHELA ◽

P. F. TEMPORETTI ◽

R. ESCALANTE ◽

F. L. PEDROZO

Keyword(s):

Reduction Technique ◽

Aqueous Mixtures ◽

High Iron Content ◽

Simple Method ◽

Acidic Solutions ◽

High Iron ◽

Iron Load ◽

The One ◽

Iron Interference

A simple and unexpensive method based on traditional cadmium column technique is proposed for determination of nitrate in acidic aqueous mixtures with high iron load. Solutions are alkalinized and centrifuged, subsequently the supernatant is withdrawn for nitrate analysis. By this procedure two effects are accomplished, on the one hand, pH is adjusted to a suitable value and, on the other hand, iron interference is removed by precipitation. The obtained mixture is passed through a copperized cadmium column to reduce nitrate to nitrite which is quantified spectrophometrically. This method is suitable to measure nitrate concentrations even lower than the maximum accepted limit, in artificial solution.

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Observations on the structure at the transformation interface of pearlite in steel

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100174138 ◽

1990 ◽

Vol 48 (4) ◽

pp. 200-201

Author(s):

F. A. Khalid ◽

D. V. Edmonds

Keyword(s):

Room Temperature ◽

Thin Foil ◽

Carbon Steels ◽

Model Alloy ◽

Growth Interface ◽

Medium Carbon ◽

Solution Treated ◽

Medium Carbon Steels ◽

Alloy Carbide ◽

Hot Rolled

The austenite/pearlite growth interface in a model alloy steel (Fe-1 lMn-0.8C nominal wt%) is being investigated. In this particular alloy pearlite nodules can be grown isothermally in austenite that remains stable at room temperature, thus facilitating examination of the transformation interfaces. This study presents preliminary results of thin foil TEM of the austenite/pearlite interface, as part of a programme of aimed at studying alloy carbide precipitation reactions at this interface which can result in significant strengthening of microalloyed low- and medium- carbon steels L Similar studies of interface structure, made on a partially decomposed high- Mn austenitic alloy, have been reported recently.The experimental alloys were made as 50 g argon arc melts using high purity materials and homogenised. Samples were hot- rolled, swaged and machined to 3mm diameter rod, solution treated at 1300 °C for 1 hr and WQ. Specimens were then solutionised between 1250 °C and 1000 °C and isothermally transformed between 610 °C and 550 °C for 10-18 hr and WQ.

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