Technology | Latrobe Magnesium

In the past 10 years, the Pidgeon process has come to dominate the world magnesium production. China is the dominant magnesium metal supplier, relying almost exclusively on this method. Magnesium is produced from calcined dolomite under vacuum and at high temperatures using silicon as a …

Status and potentials of magnesium production in China ...

Mg production process used in China at present. It is named Pidgeon process after his inventor, the Canadian chemist Lloyd M. Pidgeon. Figure 3 shows an overview of the process steps. Due to its abundant deposits, the raw material for Mg production in China is magnesium-calcium carbonate dolomite (MgCO 3·CaCO 3). Thus, the first production step

Magnesium Production from Calcined Dolomite via the ...

The selection of primary magnesium production depends on the raw material (magnesium containing ores or salts solved in salty lakes). Vacuum silicothermic production process, called the Pidgeon Process after its inventor L. M. Pidgeon, is the dominant primary production …

Pidgeon_process - chemeurope.com

The Pidgeon process is one of the methods of magnesium metal production, via a silicothermic reduction. Practical production requires roughly 35-40 MWh/ton of metal produced, which is on par with the molten salt electrolytic methods of production, though above the 7 MWh/ton theoretical minimum.

NEW PROCESS FOR SAFER AND CONTINUOUS... - Chemical ...

The process developer, Western Magnesium Corp. Environmental and economic profile of the new process could make Mg production viable in North America. Currently, 85% of Mg comes from China. The Western Magnesium process begins with mined dolomite (calcium-magnesium carbonate), which is crushed and calcined (thermal decomposition) to make MgO.

The Pidgeon Process in China and Its Future | SpringerLink

Magnesium production in China has been growing steadily over the past 10 years. Most of the metal has been produced by the Pidgeon process. This process uses horizontal steel tubes called retorts, in furnaces and under vacuum.

Smelting Magnesium Metal using a Microwave Pidgeon Method

Magnesium (Mg) is a lightweight metal with applications in transportation and sustainable battery technologies, but its current production through ore reduction using the conventional Pidgeon process emits large amounts of CO 2 and particulate matter (PM2.5). In this work, a novel Pidgeon process driven by microwaves has been developed to produce Mg metal with less energy consumption and no ...

Magnesium Production Line_ZK Ball Mill_Cement Mill_Rotary ...

Pidgeon process is applied in the company's Mg smelting technology. This kind of process is advanced and reliable technology. - More than 50 years experience in magnesium industry. - Design capacity of single production line: 5,000-25,000 tons per year. - Professional Process Design Engineers, Equipment Engineers, Electrical Engineers.

New process for safer and continuous magnesium production ...

Jun 01, 2020· The Western Magnesium process begins with mined dolomite (calcium-magnesium carbonate), which is crushed and calcined (thermal decomposition) to make MgO. The MgO is combined with ferrosilicon, a reductant that is also used in the Pidgeon process…

Magnesium: current and alternative production routes

For example, the capital cost for Australia Magnesium (AM) Process using an electrolytic route was estimated to be $10,000/tonne Mg, while the capital cost for the Pidgeon process was estimated to be $3,000/tonne Mg in 2008 (Das, 2008). Figure 1. Primary Magnesium Production from International Magnesium Association (2010).

New magnesium process cuts energy use by 60% - News - The ...

The Pidgeon process, which uses silicon to reduce magnesia, is used to produce around 85% of the world's magnesium. It is very energy intensive, requiring 80 kWh of energy to produce 1 kg of magnesium at temperatures of up to 1,200 o C. It is a two-step process, first requiring reduction of silica into silicon using carbon, before the silicon ...

How Is Magnesium Metal Produced? - ThoughtCo

The reason for the extensive use of the Pidgeon Process is due to the shift in production to the coal-rich provinces in north-central China where labor and energy costs are significantly lower than in other magnesium producing regions. According to Magnesium.com, in 1992, China produced only 7,388 tons of magnesium.

Metallothermic process - Magnesium

There are several thermic processes for the production of magnesium. All of them use calcined dolomite as ore and ferrosilicon as the reductant in a vacuum furnace. Pidgeon process ; Bolzano process ; Magnetherm process ; The original process which was developed by L.M. Pidgeon in 1940 uses an eleven inch diameter retort that is externally ...

Pidgeon Process - an overview | ScienceDirect Topics

Magnesium production in China is by the Pidgeon process and has been generally regarded as resulting in considerable atmospheric pollution. Initially the dolomite, from which the magnesium is to be extracted, is subjected to a calcining operation at about 1000 °C to remove carbon dioxide and the subsequent reduction process operates at about ...

Magnesium Metal Consultant TRU Group Magnesium Smelting …

TRU Group Magnesium Team claims the world's strongest experienced-based capability in magnesium metal and downstream products. ... TRU has been engaged for some time on technical studies to determine the amenability of the brucite to Pidgeon process production of magnesium metal, as well as undertaking a feasibility study. ...

magnesium processing | Techniques & Methods | Britannica

Electrolysis once accounted for approximately 75 percent of world magnesium production. In the early 21st century, however, when China emerged as the world's leading magnesium producer, the low cost of labour and energy there allowed the Pidgeon process to be economically viable despite being less efficient than electrolysis. Electrolysis

Mintek Thermal Magnesium Process

primary magnesium production has been growing steadily since 2002 as a result of the rapidly expanding Pidgeon plants in China, where its throughput of the metal represented about 77% of the total production in 2007 (Figure 2).

Extractive Metallurgy: Magnesium Extraction By Pidgeon Process

This process was developed in the 1940s in Ontario Canada,by Prof.Pidgeon and the Timminco company. Lately, this process has received new attention and constitutes a central process in the magnesium production at a large number of Chinese manufacturers (see Figs. 1 and 2).

Magnesium Production by the Pidgeon Process Involving ...

Thermochemical equilibrium calculations indicate the possibility of considerable fuel savings and CO2 emission avoidance in the three steps of the Pidgeon process: (a) calcination of dolomite; (b) production of ferrosilicon from quartz sand, coal, and iron oxide; (c) silicothermic reduction of calcined dolomite by ferrosilicon to magnesium.

Evaluation of Zefreh Dolomite (Central Iran) for ...

The Iranian market conditions favor the Pidgeon process, over the electrolytic pro-cess (Mehrabi 2005). Therefore, it is necessary to technically evaluate the dolomite resources that are available in Iran as a first step towards selecting the most suitable ore that can be used for the production of magnesium in the Pidgeon process. A

The Pidgeon Process | China Magnesium Corporation

The existing Magnesium Plant (and its proposed expansions) use (will use) the Pidgeon process. The basic raw material supply and magnesium production process is as follows: 1. Mining and crushing of the dolomite: The dolomite is mined and crushed by the supplier at the quarry, and delivered to the Magnesium Plant in 15-25mm granules. 2.

pidgeon pidgeon process on magnesium extraction show the cru

pidgeon pidgeon process on magnesium extraction show the cru. The Pidgeon Process for the production of magnesium from dolomite is based on the reduction of the magnesium oxide component of dolomite by silicon, as ferrosilicon, via the reaction What is the minimum temperature at which the process can be carried out so that the partial pressure of magnesium over the solid reactants is 0.04 …

Pidgeon / Bolzano Process

Pidgeon / Bolzano Process The Magnetherm process developed by Pechiney-Ugine-Kuhlman in 1963 in France applies an electric furnace with liquid slag. Aluminia or bauxite is added to the charge and acts as a catalyst to keep the calcium silicate slag molten so that it may be tapped in a liquid state.

Smelting Magnesium Metal using a Microwave Pidgeon Method ...

Apr 12, 2017· Magnesium (Mg) is a lightweight metal with applications in transportation and sustainable battery technologies, but its current production through ore reduction using the conventional Pidgeon ...

International Journal of Heat and Mass Transfer

However, the Pidgeon process in china is of intensive energy use and intensive labor operation [5]. Recent years, new technologies had been exploring and simulation as a tool can provide a good knowledge of heat and mass transfer occurred in the process of magnesium production …

Weblinks: Production of Magnesium

Production "Pidgeon process" [Launch Site] Wikipedia entry Production "The Pidgeon Process in Magnesium Production" [Read Paper] Article by National Research Council Canada Production "Electrolytic production of magnesium: Effect of current density" [Launch Site] Article by G. M. Rao in Journal of Applied Electrochemisty

Magnesium Overview | China Magnesium Corporation

The remaining large magnesium production plants in the world outside China use electrolytic processes. At the present time, thermal reduction by the Pidgeon process is the most commercially robust form of magnesium production that is being used on a large scale.

Magnesium metal: POSCO announces end to production

In 2012, the steelmaker started production from a 10ktpy modified Pidgeon process magnesium plant in Gangneung, Gangwon Province. The company planned to expand capacity to 20ktpy by 2016 and 100ktpy by 2018. When the refinery reached full capacity, POSCO expected 70% of its production to be magnesium alloy.