Known as the Pidgeon Process and named after it's inventor, Dr. Lloyd Pidgeon, the process consumes more energy and requires more manual labor to produce the same mass of magnesium as the others. It's the dominant process used for magnesium production in China, where energy and labor are both cheap.

Extraction Through the Pidgeon Process . Over the past 20 years, one of the least efficient methods of magnesium production has, oddly, become the most prevalent. The Pidgeon Process, developed by Dr. Lloyd Pidgeon, is both an energy and labor-intensive form of …

The Magnesite Pidgeon Process is one of the methods of magnesium metal production, via a silicothermic reduction.The Pidgeon method is less complex technologically, and because of distillation/vapor deposition conditions, a high purity product is easily achievable.

Figure 1. Primary Magnesium Production from International Magnesium Association (2010). The "Other Country" data before 1999 refers to any country besides US and Canada. The Pidgeon process suffers from a low productivity, high labour requirement and high energy consumption, compared to other pyrometallurgical processes.

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).

2. Magnesium production using Pidgeon process in China 2.1. Pidgeon process A plant for magnesium production based on the ferrosilicon process was built in Canada in the early 1940s (Mayer, 1944) to produce magnesium at the rate of ～4500kg per annum (or 10,000lb per year). This process (Pidgeon and Alexander, 1944)―later known as the

Pidgeon Process Magnesium Metal Reduction Technology Vertical Centrifugal Casting Machine Our floor and pit mounted vertical centrifugal casting machines are used to produce the duplexed mill rolls, cylinder liners, bronze or copper alloy tubes, brake drums, discs, …

1. Introduction. Magnesium is considered as a very promising material that has potential to low weight in automotive and aerospace industries. The world demand for magnesium is increasing by about 10% per year,,, .The primary magnesium is at present mainly produced by the Pidgeon process in China which is now the largest magnesium production and exporting country.

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

2 Known as the Pidgeon Process and named after it's inventor, Dr. Lloyd Pidgeon, the process consumes more energy and requires more manual labor to produce the same mass of …

The Pidgeon process is the main extraction method of magnesium, but its continuous production cannot be achieved due to the switch between vacuum and atmospheric pressure.

Abstract. Thermochemical equilibrium calculations indicate the possibility of considerable fuel savings and CO{sub 2} 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.

The Pidgeon process, a silicothermic reduction of calcined dolomite under vacuum, is the dominant process to make magnesium metal. Experimental data from Morsi et al., were utilised for kinetics ...

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.

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. All three steps should benefit from application of ...

In magnesium smelting via the Pidgeon process, the magnesium reduction tank is a very important component in the production process and is a consumable part. At present, the reduction tank is usually cast from high chromium-nickel alloy steel.

i) Pidgeon Process The Pidgeon process is a based on silicothermic reduction of magnesium oxide (Pidgeon, 1944), see Figure 4 for a flow sheet of the process. The calcination of dolomite takes place in rotary-kiln that operates at temperature ranges of 1000 to 1300oC.

NUMERICAL SIMULATION OF MAGNESIUM PRODUCTION BY THE PIDGEON - Seventh International Conference on...

Pidgeon Process Magnesium Production Plant Get Latest Price . Min. Order / Reference FOB Price 1 Piece: US $12,580-686,800/ Piece: Port: Shanghai, China Production Capacity: 50 Set/Sets Per Year ...

magnesium production from magnesium oxide containing raw materials by using ferrosilicon as a reductant under vacuum. Molten salt electrolysis was the dominant primary magnesium production method until Pidgeon s invention. This process is called the Pidgeon Process, in honour of L. M. Pidgeon. 2,5 3.1.2 B ASI C P RIN C IPLES OF P IDGEON P RO C ESS

2 Analysis of Primary Magnesium Production Pidgeon Process in China In the past years since the 2013 LCA study has been published, the Pidgeon process has been further improved. Major efforts have been made to improve the energy efficiency of the process, e.g. by waste heat utilization.

production of magnesium. Pidgeon's process of thermally reducing magnesium oxide with silicon in externally fired retorts was introduced. In the Pidgeon process, ground and calcined dolomite is mixed with finely ground ferrosilicon, briquetted, and charged into cylindrical nickel-chromium-steel retorts. A number of retorts are installed ...

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.

The process involves two stages: i) production of pure magnesium chloride from sea water or brine; ii) electrolysis of fused magnesium chloride (i) Production of pure magnesium chloride from sea water or brine; Where sea-water is the raw material, it is treated with dolomite which has been converted to mixed oxides by heating to a high temperature.

Pidgeon process. 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. Additional recommended knowledge.

TRU Group is expert on magnesium production using conventional pidgeon, silico-thermal, electrolytic, Russian, Dow (sea water brine process), Chinese, magnola, and western technology as well as the experimental and "improved" processes under development such …

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 …

Magnesium Metal Reduction Retort Production Line. Our retort centrifugal casting line produces Pidgeon Process magnesium or calcium metal reduction retorts and recycles the old used retorts. We produce both vertical and horizontal retort to reduce the magnesium or calcium metal by Pidgeon process technology.

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 …

Abstract: Pidgeon process using dolomite as materials and using ferrosilicon as reductant is the main method of magnesium metal production, and the low reduction rate of MgO is one of the main problems for this method. Some experiments of Pidgeon process were carried out in this work. The phase compositions of reductant and ferrosilicon alloy were analyzed.

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. Calcined lime will also be produced as a by-product for regional construction project. Local coal is being investigated by TRU as an energy source ...

Pidgeon Process for Magnesium Production, Find Details about Magnesium Production Line, Pidgeon Process from Pidgeon Process for Magnesium Production - Henan Zhengzhou Mining Machinery Co., Ltd.