Direct smelting process for stainless steel crude alloy recovery from mixed low-grade chromite, nickel laterite and manganese ores

2018 ◽  
Vol 25 (5) ◽  
pp. 515-523 ◽  
Author(s):  
Romie D. Laranjo ◽  
Nathaniel M. Anacleto
Keyword(s):  
Stainless Steel ◽  
Smelting Process ◽  
Low Grade ◽  
Nickel Laterite ◽  
Manganese Ores ◽  
Direct Smelting

Production of manganese (II) sulphate from low-grade manganese ores

2007 ◽  
Vol 14 (3) ◽  
pp. 105-108
Author(s):  
R. I. Razouk ◽  
S. K. Tobia ◽  
M. A. Messiha
Keyword(s):  
Low Grade ◽  
Manganese Ores

scholarly journals Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route

2020 ◽  
Vol 56 (2) ◽  
pp. 229-235
Author(s):  
P. Ganesh ◽  
Dishwar Kumar ◽  
S. Agrawal ◽  
Mandal Kumar ◽  
N. Sahu ◽  
...  
Keyword(s):  
Solid State ◽  
Horizontal Tube ◽  
Low Grade ◽  
State Reduction ◽  
Nickel Extraction ◽  
Reducing Atmosphere ◽  
Chromite Overburden ◽  
Solid State Reduction ◽  
Horizontal Tube Furnace ◽  
Direct Smelting

The present work demonstrates the extraction of nickel from low-grade chromite overburden by using solid state reduction and direct smelting route. Goethite & Quartz are present as major phases whereas chromite, hematite were identified as minor phases in the mineral. Solid state reduction of pellets were carried out inside a horizontal tube furnace at 1000?C, 1200?C, 1400?C for 30, 60, 90 and 120 minutes respectively with creating reducing atmosphere. Pellets of varying basicity (i.e. 0.5, 0.6, 0.7, 0.8 and 0.9) were used directly in the EAF for smelting studies. Highest percent of nickel (2%) having ~ 91% recovery were obtained in solid state reduction route for pellets which was reduced at 1400?C for 120 minute. Similar recovery (~90%) of nickel was obtained inside the ingot (0.67% Ni ) by using pellets of 0.9 basicity through smelting route. From the present investigation, it could be concluded that the solid state reduction as well as smelting routes are feasible for the recovery of nickel from low grade chromite overburden. The production of nickel pig (low grade ferronickel) could also be feasible by smelting route.

Evaluation of the leaching characteristics of low-grade nickel laterite waste rock for indirect carbon sequestration application

2020 ◽  
Vol 23 (4) ◽  
pp. 205-215
Author(s):  
Ramon Christian P. Eusebio ◽  
Bernard Jomari B. Razote ◽  
Hannah Jelsy T. Del Pilar ◽  
Richard D. Alorro ◽  
Arnel B. Beltran ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Waste Rock ◽  
Low Grade ◽  
Nickel Laterite ◽  
Leaching Characteristics

The contribution of Acidiphilium cryptum to the dissolution of low-grade manganese ores

2018 ◽  
Vol 175 ◽  
pp. 312-318 ◽  
Author(s):  
Ernesto González ◽  
José Manuel Rodríguez ◽  
Jesús Ángel Muñoz ◽  
María Luisa Blázquez ◽  
Antonio Ballester ◽  
...  
Keyword(s):  
Low Grade ◽  
Manganese Ores ◽  
Acidiphilium Cryptum
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