pidgeon process
Pidgeon Process - an overview ScienceDirect Topics
The Pidgeon process is batch-type process and it is suitable for small-scale and labor-intensive production. The process has an economic advantage in China, mainly because of China’s low labor costs. Currently, most magnesium metal is produced by batch-type metallothermic reduction processes such as the Pidgeon process.
More
Updated CO2 emission from Mg production by Pidgeon
2015年7月1日 The objectives of this study are as follows: (1) qualify the “cradle-to-gate” CO 2 emission of primary Mg production by the Pidgeon process in China with current improved technologies and energy structure; (2) estimate the reduction potentials of promoting two technology strategies, such as current available technologies application and ...
More
Thermodynamic study of magnesium (Mg) production by
2024年1月10日 The Pidgeon process is a thermal reduction process that extracts magnesium from calcined dolomite (MgOCaO), in which the ferrosilicon (FeSi) is adopted as a reducing agent, and a small quantity (0.3–2 %) of calcium fluoride (CaF 2) is added as a catalyst which can promote the MgO reduction [4]. After mixing in a certain proportion, finely ...
More
Comparative evaluation of energy and resource
2022年3月1日 This study quantified the flows of resource and energy for the Pidgeon process and the VCTRM process, then compared and analyzed these two processes with each other from three aspects. The VCTRM process results in 63.14% and 69.16% lower of non-renewable mineral resources and energy consumptions when compared to the Pidgeon process,
More
Global warming impact of the magnesium produced in
2004年8月1日 Nearly 95% of the primary magnesium output of China (Zang, 2001) is produced using the Pidgeon process (Pidgeon and Alexander, 1944) that was invented in the 1940s in Canada. Magnesium production is energy intensive, and environmental issues play a significant role in driving the demand for magnesium, magnesium alloys, components and products.
More
Magnesium research and applications: Past, present and future
2023年11月1日 The production process used in China is a silicothermic reduction process called Pidgeon process, originally developed by a Canadian chemist Lloyd Pidgeon. This is a batch process in which dolomite (Ca,Mg)CO 3 is finely powdered and calcined, as shown in Reaction (1), mixed with ferrosilicon (Fe,Si) and briquetted, and then charged in retorts ...
More
Mechanism of solid–liquid reaction in magnesium smelting
2024年5月1日 Above 1028 °C, the process involves a solid–liquid reaction in the pellet during primary magnesium production by the silicothermic process under vacuum. The reaction begins with the surface of solid silicon particles reacting with CaO in the contact dolime to form liquid silicocalcium on the silicon particle surfaces.
More
Numerical study of magnesium (Mg) production by the
2013年4月1日 The Pidgeon process has advantages of producing high purity magnesium as well as simple operation and low investment cost. It is also anticipated to be the main technique for producing high purity magnesium in future. However, the Pidgeon process in china is of intensive energy use and intensive labor operation [5]. Recent years, new ...
More
Mechanism of slag pellets sticking on the wall of reduction
2024年6月1日 During silicothermic reduction process, iron may be oxidized to FeO, Fe 3 O 4, or Fe 2 O 3 at high temperature. Whether FeO and Fe 2 O 3 can cause liquid phase in glaze block at Pidgeon process temperature can be explained by SiO 2-CaO-FeO system and SiO 2-CaO-Fe 2 O 3 system. Fig. 4 e shows the ternary phase diagram of SiO 2-CaO-FeO system.
More
Life cycle greenhouse gases, energy and cost assessment of
2010年1月1日 The Pidgeon process has an intensive energy usage and generates a large amount of GHG emissions. For each kilogram of Mg produced by Pidgeon process, the GHG emissions and energy usage would be 27 kg CO2eq and 280 MJ, which are five times more than steel production. Although recycled Mg can reduce more than 90% of GHG emissions and
MorePidgeon Process - an overview ScienceDirect Topics
The Pidgeon process is batch-type process and it is suitable for small-scale and labor-intensive production. The process has an economic advantage in China, mainly because of China’s low labor costs. Currently, most magnesium metal is produced by batch-type metallothermic reduction processes such as the Pidgeon process.
MoreUpdated CO2 emission from Mg production by Pidgeon
2015年7月1日 The objectives of this study are as follows: (1) qualify the “cradle-to-gate” CO 2 emission of primary Mg production by the Pidgeon process in China with current improved technologies and energy structure; (2) estimate the reduction potentials of promoting two technology strategies, such as current available technologies application and ...
MoreThermodynamic study of magnesium (Mg) production by
2024年1月10日 The Pidgeon process is a thermal reduction process that extracts magnesium from calcined dolomite (MgOCaO), in which the ferrosilicon (FeSi) is adopted as a reducing agent, and a small quantity (0.3–2 %) of calcium fluoride (CaF 2) is added as a catalyst which can promote the MgO reduction [4]. After mixing in a certain proportion, finely ...
MoreComparative evaluation of energy and resource
2022年3月1日 This study quantified the flows of resource and energy for the Pidgeon process and the VCTRM process, then compared and analyzed these two processes with each other from three aspects. The VCTRM process results in 63.14% and 69.16% lower of non-renewable mineral resources and energy consumptions when compared to the Pidgeon process,
MoreGlobal warming impact of the magnesium produced in
2004年8月1日 Nearly 95% of the primary magnesium output of China (Zang, 2001) is produced using the Pidgeon process (Pidgeon and Alexander, 1944) that was invented in the 1940s in Canada. Magnesium production is energy intensive, and environmental issues play a significant role in driving the demand for magnesium, magnesium alloys, components and products.
MoreMagnesium research and applications: Past, present and future
2023年11月1日 The production process used in China is a silicothermic reduction process called Pidgeon process, originally developed by a Canadian chemist Lloyd Pidgeon. This is a batch process in which dolomite (Ca,Mg)CO 3 is finely powdered and calcined, as shown in Reaction (1), mixed with ferrosilicon (Fe,Si) and briquetted, and then charged in retorts ...
MoreMechanism of solid–liquid reaction in magnesium smelting
2024年5月1日 Above 1028 °C, the process involves a solid–liquid reaction in the pellet during primary magnesium production by the silicothermic process under vacuum. The reaction begins with the surface of solid silicon particles reacting with CaO in the contact dolime to form liquid silicocalcium on the silicon particle surfaces.
MoreNumerical study of magnesium (Mg) production by the
2013年4月1日 The Pidgeon process has advantages of producing high purity magnesium as well as simple operation and low investment cost. It is also anticipated to be the main technique for producing high purity magnesium in future. However, the Pidgeon process in china is of intensive energy use and intensive labor operation [5]. Recent years, new ...
MoreMechanism of slag pellets sticking on the wall of reduction
2024年6月1日 During silicothermic reduction process, iron may be oxidized to FeO, Fe 3 O 4, or Fe 2 O 3 at high temperature. Whether FeO and Fe 2 O 3 can cause liquid phase in glaze block at Pidgeon process temperature can be explained by SiO 2-CaO-FeO system and SiO 2-CaO-Fe 2 O 3 system. Fig. 4 e shows the ternary phase diagram of SiO 2-CaO-FeO system.
MoreLife cycle greenhouse gases, energy and cost assessment of
2010年1月1日 The Pidgeon process has an intensive energy usage and generates a large amount of GHG emissions. For each kilogram of Mg produced by Pidgeon process, the GHG emissions and energy usage would be 27 kg CO2eq and 280 MJ, which are five times more than steel production. Although recycled Mg can reduce more than 90% of GHG emissions and
MorePidgeon Process - an overview ScienceDirect Topics
The Pidgeon process is batch-type process and it is suitable for small-scale and labor-intensive production. The process has an economic advantage in China, mainly because of China’s low labor costs. Currently, most magnesium metal is produced by batch-type metallothermic reduction processes such as the Pidgeon process.
MoreUpdated CO2 emission from Mg production by Pidgeon
2015年7月1日 The objectives of this study are as follows: (1) qualify the “cradle-to-gate” CO 2 emission of primary Mg production by the Pidgeon process in China with current improved technologies and energy structure; (2) estimate the reduction potentials of promoting two technology strategies, such as current available technologies application and ...
MoreThermodynamic study of magnesium (Mg) production by
2024年1月10日 The Pidgeon process is a thermal reduction process that extracts magnesium from calcined dolomite (MgOCaO), in which the ferrosilicon (FeSi) is adopted as a reducing agent, and a small quantity (0.3–2 %) of calcium fluoride (CaF 2) is added as a catalyst which can promote the MgO reduction [4]. After mixing in a certain proportion, finely ...
MoreComparative evaluation of energy and resource
2022年3月1日 This study quantified the flows of resource and energy for the Pidgeon process and the VCTRM process, then compared and analyzed these two processes with each other from three aspects. The VCTRM process results in 63.14% and 69.16% lower of non-renewable mineral resources and energy consumptions when compared to the Pidgeon process,
MoreGlobal warming impact of the magnesium produced in
2004年8月1日 Nearly 95% of the primary magnesium output of China (Zang, 2001) is produced using the Pidgeon process (Pidgeon and Alexander, 1944) that was invented in the 1940s in Canada. Magnesium production is energy intensive, and environmental issues play a significant role in driving the demand for magnesium, magnesium alloys, components and products.
MoreMagnesium research and applications: Past, present and future
2023年11月1日 The production process used in China is a silicothermic reduction process called Pidgeon process, originally developed by a Canadian chemist Lloyd Pidgeon. This is a batch process in which dolomite (Ca,Mg)CO 3 is finely powdered and calcined, as shown in Reaction (1), mixed with ferrosilicon (Fe,Si) and briquetted, and then charged in retorts ...
MoreMechanism of solid–liquid reaction in magnesium smelting
2024年5月1日 Above 1028 °C, the process involves a solid–liquid reaction in the pellet during primary magnesium production by the silicothermic process under vacuum. The reaction begins with the surface of solid silicon particles reacting with CaO in the contact dolime to form liquid silicocalcium on the silicon particle surfaces.
MoreNumerical study of magnesium (Mg) production by the
2013年4月1日 The Pidgeon process has advantages of producing high purity magnesium as well as simple operation and low investment cost. It is also anticipated to be the main technique for producing high purity magnesium in future. However, the Pidgeon process in china is of intensive energy use and intensive labor operation [5]. Recent years, new ...
MoreMechanism of slag pellets sticking on the wall of reduction
2024年6月1日 During silicothermic reduction process, iron may be oxidized to FeO, Fe 3 O 4, or Fe 2 O 3 at high temperature. Whether FeO and Fe 2 O 3 can cause liquid phase in glaze block at Pidgeon process temperature can be explained by SiO 2-CaO-FeO system and SiO 2-CaO-Fe 2 O 3 system. Fig. 4 e shows the ternary phase diagram of SiO 2-CaO-FeO system.
MoreLife cycle greenhouse gases, energy and cost assessment of
2010年1月1日 The Pidgeon process has an intensive energy usage and generates a large amount of GHG emissions. For each kilogram of Mg produced by Pidgeon process, the GHG emissions and energy usage would be 27 kg CO2eq and 280 MJ, which are five times more than steel production. Although recycled Mg can reduce more than 90% of GHG emissions and
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