Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Direct chromium alloying by chromite ore with the presence of metallic iron
View through CrossRef
Direct chromium alloying by chromite ore in EAF operation is a promising
process in stainless steel production, which has the advantage of
resource-saving, energy-saving, and environment-friendly. In the present
investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were
chosen as the precursor for direct chromium alloying. Thermogravimetric
Analysis (TGA) experiments were carried out to investigate the effect of iron
content on the reduction kinetics, and the results show that the presence of
metallic iron in the precursor will increase the reduction rate of chromite.
Up-scaling experiments (100 g and 500 g scale) have been carried out in the
induction furnace to further test the effectiveness of using industrial
chromite ore for direct chromium alloying. The induction furnace tests
confirmed the necessity of adjusting composition of the slags to ensure high
yield of chromium in the final products; and chromium yield can reach 90%.
National Library of Serbia
Title: Direct chromium alloying by chromite ore with the presence of metallic iron
Description:
Direct chromium alloying by chromite ore in EAF operation is a promising
process in stainless steel production, which has the advantage of
resource-saving, energy-saving, and environment-friendly.
In the present
investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were
chosen as the precursor for direct chromium alloying.
Thermogravimetric
Analysis (TGA) experiments were carried out to investigate the effect of iron
content on the reduction kinetics, and the results show that the presence of
metallic iron in the precursor will increase the reduction rate of chromite.
Up-scaling experiments (100 g and 500 g scale) have been carried out in the
induction furnace to further test the effectiveness of using industrial
chromite ore for direct chromium alloying.
The induction furnace tests
confirmed the necessity of adjusting composition of the slags to ensure high
yield of chromium in the final products; and chromium yield can reach 90%.
Related Results
Correlation between alternation textures and varieties of chromite: Case study in Chongjin Ophiolite, NE Korean Peninsula
Correlation between alternation textures and varieties of chromite: Case study in Chongjin Ophiolite, NE Korean Peninsula
Abstract
Chongjin ophiolite, which is an on-land remnant of oceanic lithosphere formed in the upper Paleozoic era, is located tectonically in the suture zone between Sino-K...
Mechanism of Iron Powder to Enhance Solid-State Reduction of Chromite Ore
Mechanism of Iron Powder to Enhance Solid-State Reduction of Chromite Ore
This study investigated the solid-state reduction characteristics of natural chromite ore and the effect of iron powder on the solid-state reduction characteristics of natural chro...
Proizvodnja željeza u kasnoj antici i ranome srednjem vijeku u Podravini – tehnološki aspekti i društveni kontekst
Proizvodnja željeza u kasnoj antici i ranome srednjem vijeku u Podravini – tehnološki aspekti i društveni kontekst
Previous archaeological investigations in present-day Gornja Podravina have created prerequisites for the study of the wider context of iron production in the period of Late Antiqu...
Exsolutions of Diopside and Magnetite in Olivine from Mantle Dunite, Luobusa Ophiolite, Tibet, China
Exsolutions of Diopside and Magnetite in Olivine from Mantle Dunite, Luobusa Ophiolite, Tibet, China
Abstract: The exsolutions of diopside and magnetite occur as intergrowth and orient within olivine from the mantle dunite, Luobusa ophiolite, Tibet. The dunite is very fresh with a...
Chromites in Ordinary chondrite fusion crusts
Chromites in Ordinary chondrite fusion crusts
We studied 5 fall Ordinary Chondrites of different groups (H4, H5, LL5, LL6, L3.6) and an Antarctic meteorite (H5), in order to investigate possible compositional differences betwe...
Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods
Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods
The low chromium-to-iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well...
DYNAMICS OF CHANGES IN THE INDICES OF LIPID PEROXIDATION AND ANTIOXIDANT SYSTEM IN RATS WITH ALLOXAN DIABETES, MODELED ON THE BACKGROUND OF THE PRELIMINARY TOXICITY OF HEAVY METAL SALTS
DYNAMICS OF CHANGES IN THE INDICES OF LIPID PEROXIDATION AND ANTIOXIDANT SYSTEM IN RATS WITH ALLOXAN DIABETES, MODELED ON THE BACKGROUND OF THE PRELIMINARY TOXICITY OF HEAVY METAL SALTS
Aim: to study the processes of lipid peroxidation and the antioxidant defense system in rats with alloxan-induced diabetes against the background of isolated and combined exposure ...
Iron stress affects the survival of Toxoplasma gondii
Iron stress affects the survival of Toxoplasma gondii
Abstract
Background
Iron possesses redox abilities and plays a crucial role in in biosynthesis, energy metabolism, and other biological processes. It represents an indispe...