Key Data Set Information | |
Location | CN |
Geographical representativeness description | Southern China and Bayan Obo |
Reference year | 2010 |
Name |
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Use advice for data set | When using this data in Life Cycle Assessment (LCA), it is important to consider the allocation method based on the mass of produced Rare Earth Elements (REEs) along with their market prices. Environmental impacts should be compared for the production of 1 kg Dysprosium across different sources, including IAC (Southern China), B/M ore (Bayan Obo), and eudialyte (Norra Kärr). Due to varying compositions of the ores, the allocation factor must be assessed individually for each site. It is also necessary to account for site-specific technological applicability and processing efficiencies in the LCA model. |
Technical purpose of product or process | The technical use of the process involves the production of Dysprosium (Dy) through the precipitation of rare earth elements from a filtrate and subsequent leaching with hydrochloric acid (HCl). This process is specific to the extraction and refinement of dysprosium from REE containing ores in Southern China and Bayan Obo regions. Dysprosium is a rare earth element commonly used in permanent magnets, which are essential components of modern electronics, electric vehicles, and wind-turbine generators, among other high-tech applications. |
Classification |
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General comment on data set | The technical use of the process involves the production of Dysprosium (Dy) through the precipitation of rare earth elements from a filtrate and subsequent leaching with hydrochloric acid (HCl). This process is specific to the extraction and refinement of dysprosium from REE containing ores in Southern China and Bayan Obo regions. Dysprosium is a rare earth element commonly used in permanent magnets, which are essential components of modern electronics, electric vehicles, and wind-turbine generators, among other high-tech applications. |
Copyright | No |
Owner of data set | |
Quantitative reference | |
Reference flow(s) |
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Functional Unit | The goal of this investigation is to compare environmental impacts related to the production of 1 kg Dy (functional unit) from IAC (Southern China), from B/M ore (Bayan Obo), and from an eudialyte deposit (Norra Kärr) using the LCA method |
Time representativeness | |
Data set valid until | 2019 |
Technological representativeness | |
Technology description including background system | The goal of this investigation is to compare environmental impacts related to the production of 1 kg Dy (functional unit) from IAC (Southern China), from B/M ore (Bayan Obo), and from an eudialyte deposit (Norra Kärr) using the LCA method |
Flow diagram(s) or picture(s) |
LCI method and allocation | |||||
Type of data set | Unit process, single operation | ||||
LCI Method Principle | Attributional | ||||
Deviation from LCI method principle / explanations | None | ||||
Deviations from LCI method approaches / explanations | In this study, an allocation method based on the mass of produced REEs combined with their market prices (based on an international metals market analysis and pricing index company ) are considered, as usual for metals with strongly different prices. As the ores have different compositions, the allocation factor has to be assessed individually for each site. | ||||
Deviation from modelling constants / explanations | None | ||||
Data sources, treatment and representativeness | |||||
Deviation from data cut-off and completeness principles / explanations | None | ||||
Deviation from data selection and combination principles / explanations | None | ||||
Deviation from data treatment and extrapolations principles / explanations | None | ||||
Data source(s) used for this data set | |||||
Completeness | |||||
Completeness of product model | No statement | ||||
Validation | |||||
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Data generator | |
Data set generator / modeller | |
Data entry by | |
Time stamp (last saved) | 2024-01-04T18:04:08+08:00 |
Publication and ownership | |
UUID | de34870a-c925-4020-934b-27687f2ca907 |
Date of last revision | 2024-04-20T15:07:16.844169+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=de34870a-c925-4020-934b-27687f2ca907&version=01.00.000&stock=TianGong |
Owner of data set | |
Copyright | No |
License type | Free of charge for all users and uses |
Inputs
Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
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Product flow | Energy carriers and technologies / Electricity | 1.62 MJ | 1.62 MJ | ||||||
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Product flow | Materials production / Inorganic chemicals | 5.4 kg | 5.4 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.66 kg | 0.66 kg | 0.26 | 1.06 | ||||
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1.885 | 1.885 | 0.74 | 3.03 | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 11.48 kg | 11.48 kg | ||||||
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Elementary flow | Resources / Resources from water / Renewable material resources from water | 197.0 m3 | 197.0 m3 | ||||||
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Product flow | Transport services / Other transport | 2.565 t*km | 2.565 t*km | 2.07 | 3.06 | ||||
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Outputs
Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
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Product flow | Wastes / Other waste | 5.14 kg | 5.14 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 1.46E-4 kg | 1.46E-4 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 8.08E-4 kg | 8.08E-4 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 1.7E-6 kg | 1.7E-6 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 7.07E-5 kg | 7.07E-5 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 2.31E-5 kg | 2.31E-5 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 6.72 kg | 6.72 kg | ||||||
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Product flow | Materials production / Inorganic chemicals | 1.47E-4 kg | 1.47E-4 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 1.05E-4 kg | 1.05E-4 kg | ||||||
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Product flow | Materials production / Inorganic chemicals | 208.0 kg | 208.0 kg | ||||||
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