Process information
| Key Data Set Information | |
| Location | CN |
| Geographical representativeness description | Bayan Obo, Chinese Southern Provinces |
| Reference year | 2007 |
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| Use advice for data set | Users of this LCA data set should take into consideration the adoption of secondary data sources due to the absence of primary mining data from Bayan Obo. The main inputs, such as energy and blasting agents, are derived from iron or phosphate rock mining data. For accurate assessment, users should critically evaluate the differences and uncertainties in crucial parameters of the LCIs. Additionally, when comparing LCIA results, it is important to acknowledge the limitations due to different LCIA methods used across studies as highlighted in Figure 4 and Tables S1 and S3 of the supplementary material. It is advised to use consistent LCIA methods for meaningful comparison. Data users should also consider the baseline assumptions for aqueous and gaseous emissions in line with the Chinese Ministry of Environmental Protection's national industry discharge standards when applying this dataset. |
| Technical purpose of product or process | This data set represents the process of rare earth oxide (REO) production via the IAC (in-situ leaching, RE carbonate precipitation, and calcination) route in Bayan Obo, located in the Southern Provinces of China. The REO obtained from this process is used predominantly in the manufacturing of magnets, catalysts, glass additives, and various other high-tech and clean energy applications where specific rare earth elements are required. |
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| General comment on data set | This data set represents the process of rare earth oxide (REO) production via the IAC (in-situ leaching, RE carbonate precipitation, and calcination) route in Bayan Obo, located in the Southern Provinces of China. The REO obtained from this process is used predominantly in the manufacturing of magnets, catalysts, glass additives, and various other high-tech and clean energy applications where specific rare earth elements are required. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Functional Unit | The study considered 15 different functional units corresponding to different RE metals. The assessment included three main RE production sites in China: REO production in Bayan Obo, Sichuan, and IACs. Primary data were collected for foreground production processes from Chinese and further international scientific literature, industry reports, government and industry surveys. The authors assumed a baseline for aqueous and gaseous emissions using national discharge standards for industry from the Chinese Ministry of |
| Time representativeness | |
| Data set valid until | 2020 |
| Technological representativeness | |
| Technology description including background system | Because no primary mining data from Bayan Obo were available, LCI data in the studies (Sprecher, Arshi, Marx, Bailey (Classen et al., 2007)) are based on different data sources either from iron mining or in Althaus from phosphate rock mining. Main inputs are energy and blasting agent |
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Modelling and validation
Administrative information
Inputs and Outputs