Ce ferronickel pauvre est généralement produit dans une vieille installation sidérurgique amortie mais déclassée à cause de sa petite taille : l'adoption de ce procédé correspond à une stratégie d'opportunité dont la rentabilité ne peut guère être comparée à la construction d'installations neuves .
Jul 18, 2019· Ferronickel is a ferroalloy containing mainly iron and nickel. It is supplied in the shape of flowable granules with a typical particle size between 2 and 50 mm. Part of the production process is a refining step which reduces the amount of carbon, silicon, manganese, sulfur, and phosphorus to an acceptable level for foundries.
The first one to be simulated is the conventional ferronickel production in electric furnaces. 3.1 Conventional Ferronickel Production (Electric Furnace) The process is based on RKEF technology (Rotary Kiln – Electric Furnace). In this simulation, ore composition is chosen for …
Nov 19, 1974· Ferronickel is an ingredient used in the production of nickel cast iron and in the production of stainless steel. The conventional electrothermal ferronickel process as practiced in New Caledonia involves a stage of preheating the lateritic ore for removal of volatile constituents such as free water and water or recrystallization.
The invention relates to a process for the production of a ferronickel product from laterite ore or a concentrate made from nickel bearing laterite ore to yield the ferronickel product which contains in excess of 10% nickel when produced from limonite ore and in excess of 30% nickel when produced from saprolite ore and less than 0.5% carbon.
DC laterite process . DC-arc furnace technology can be used to provide an economical process for the smelting of nickel-containing laterite ores and dust, to produce a crude ferronickel product that could be refined to saleable ferronickel by conventional techniques.
In the recent years, ferronickel has been used as a substitute for electrolytic nickel for alleviating the cost of stainless steel production. Rotary kiln-electric furnace (RKEF) smelting is currently the world-wide mainstreaming process for ferronickel production from nickeliferous laterite ore, in spite of the high power consumption.
Precisely controlling the heat flux in the kiln and lowering the energy cost of the calcining plant are important drivers in the ferronickel Industry. Fives, a recognized performer in the minerals industry, offers adapted and energy efficient combustion solutions.
Ferronickel is an alloy containing nickel and iron - approximately 35% nickel and 65% iron. Its uses The use of nickel is dominated by the production of ferronickel for stainless steel (66%). However, it is also used in the production of non-ferrous alloys (12%), alloy …
process variables and process outcomes during nickel laterite smelting. Keywords: Computational thermodynamics, Smelting, Laterites, Ferronickel Introduction Nickel is an important metal, with its use as an alloying element in steelmaking dominating all other uses. Most nickel is produced as the commercially pure metal, but
PT ANTAM (Persero) Tbk. ANTAM is a vertically integrated, export-oriented, diversified mining and metals company. With operations spread throughout the mineral-rich Indonesian archipelago, ANTAM undertakes all activities from exploration, excavation, processing through to marketing of nickel ore, ferronickel, gold, silver, and bauxite.
Dec 18, 2018· Ferronickel is vital importance to modern society. It is because ferronickel is main feedstock in stainless steel production. Without stainless steel, we would not be able to enjoy many of the things that we take for granted, such as stainless steel appliances in …
AbstractThe smelting of nickel laterite ores to ferronickel alloy is unique in extractive metallurgy. It treats feed that is very low grade with respect to the target metal and, as a result, produces much more waste slag than valuable metal product. The energy consumption per tonne of product is therefore high and requires sustained research and design development in an effort to improve the ...
The present invention provides a method of printing Process Sulawesi nickel laterite ore production RKEF a ferronickel, comprising the steps of:. A laterite ore raw materials for pre-screening grate 50mm, oversize fraction was crushed jaw crusher after mixing to -50mm and undersize product; B after mixing laterite to the rotary drying kiln dried until a moisture content of 20 ~ 22wt% of the ...
The main task of the process of ferronickel refining in basic converter is its dephosphorization, whereby one has to keep in mind that in melting of lean ferronickel (5-7% Ni) with application of lean (0.9-1% Ni) Pobuzhskaya ore content of phosphorus in the former achieves 0.15%. So, dephosphorization of ferronickel is a necessary technological ...
In the recent years, ferronickel has been used as a substitute for electrolytic nickel for alleviating the cost of stainless steel production. Rotary kiln‐electric furnace (RKEF) smelting is currently the world‐wide mainstreaming process for ferronickel production from nickeliferous laterite ore, in spite of the high power consumption.
History and location. One of the world's major producers of ferronickel is our Cerro Matoso open-cut mine in northern Colombia. For more than 30 years we have operated here, in Cordoba, but nickel was first discovered in the region way back in the 1950s.
Industrially, the process is done either during dephosphorization or after dephosphorization and desulfurization. 7.4.3 Chromium. Chromium is present in ferronickel arising from smelting furnaces that operate with high contents of carbon in the feed. The chromium content in this type of ferronickel can be up to 1.7% (Bergman, 2003).It is removed during carbon oxidation with little loss of nickel.
Nickel processing, preparation of the metal for use in various products. Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial applications, which owe their importance to a unique combination of properties. Nickel has a relatively high
Our smelting plant is located in Larymna, about 130 km N/NE of Athens. The plant processes the nickelferrous ores (laterites) we mine to produce ferronickel with an 18%-24% nickel content. This is the raw material for the industrial production of stainless steel in Europe.
DC-arc ferronickel process development Mintek has been working on the production of unrefined ferronickel from nickel-containing lateritic ores and dust in DC-arc furnaces since 1993. The development and various advantages of the DC-arc furnace technology developed at Mintek has previously been described in detail (Jones et al, 1993 and
In the United States, the steel industry accounted for virtually all the ferronickel consumed in 2008, with more than 98% used in stainless and heat-resistant steels; no ferronickel was produced in the US in 2008. The nickel pig iron is a low grade ferronickel made in China, which is very popular since the 2010s. Ferrosilicon
iii Approval of the thesis: OPTIMIZATION OF FERRONICKEL PRODUCTION FROM SİVRİHİSAR NICKEL LATERITE ORE submitted by SAEID POURNADERI in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Metallurgical and Materials Engineering Department, Middle East Technical University by, Prof. Dr. Canan Özgen
Process"9) also indicates that only with the semi-fused state at around 1400°C can directly produce granular ferronickel by rotary kiln. However, this process is mostly suitable for the laterite ores with >2 mass% of Ni-grade, and the average particle size of the metal granular is only about φ1 mm.10,11)
Koniambo Nickel Project is located in North Province of New Caledonia, an island in the South Pacific Ocean. Image courtesy of Koniambo Nickel SAS. The project is expected to produce 60,000t of nickel in ferronickel per annum. Image courtesy of Koniambo Nickel SAS.
Ferronickel Shot. SMM's ferronickel is manufactured by processing ore imported from Indonesia and New Caledonia using SMM's advanced technologies. It is used as a raw material of stainless steel. Since stainless steel has a beautiful luster and is superior in acid and heat resistance, it is used for utensils, such as spoons or forks ...