70db3953-e6f2-42d0-82df-d2301a8eb9db Rare Earth magnetic separation;Rare Earth;In-situ leaching;neodymium iron boron (NdFeB) magnet 稀土磁选;稀土;原位浸出;钕铁硼(NdFeB)磁铁 Unit processes Materials production Non-energetic raw materials The rare earth magnetic separation and in-situ leaching processes described are utilized for the production of neodymium iron boron (NdFeB) magnets. These magnets are commonly used in various high-tech applications including in the manufacturing of electronic devices, wind turbines, electric vehicle motors, and other advanced technological equipment where strong permanent magnets are required. 所描述的稀土磁选和原位浸出工艺用于生产钕铁硼（NdFeB）磁铁。这些磁铁通常用于包括电子设备制造、风力发电机、电动车马达和其他需要强烈永磁材料的高科技应用中。 The functional unit is a 1 kg NdFeB magnet 4 2014 Bayan Obo (China) The basic process for Nd and Pr production is the same at all three deposits. It is identical for Nd and Pr except for the last solvent extraction step (SX5) where both are separated. 所有三个矿床生产 Nd 和 Pr 的基本过程都是相同的。 Nd 和 Pr 是相同的，除了最后的溶剂萃取步骤 (SX5)，其中两者被分离。 The rare earth magnetic separation and in-situ leaching processes described are utilized for the production of neodymium iron boron (NdFeB) magnets. These magnets are commonly used in various high-tech applications including in the manufacturing of electronic devices, wind turbines, electric vehicle motors, and other advanced technological equipment where strong permanent magnets are required. 所描述的稀土磁选和原位浸出工艺用于生产钕铁硼（NdFeB）磁铁。这些磁铁通常用于包括电子设备制造、风力发电机、电动车马达和其他需要强烈永磁材料的高科技应用中。 ZnSwbt4lSo9tUyxMvOZcijcJnSb.png Unit process, single operation Attributional None 无 Allocation - market value Allocation - mass In this study, an allocation method based on the market prices of REOs28 is considered. To estimate uncertainties that refer to the allocation method, a mass-based allocation is undertaken as a sensitivity analysis None 无 None 无 None 无 None 无 Marx, J., Schreiber, A., Zapp, P. & Walachowicz, F. Comparative Life Cycle Assessment of NdFeB Permanent Magnet Production from Different Rare Earth Deposits. ACS Sustainable Chem. Eng. 6, 5858–5867 (2018). Marx, J., Schreiber, A., Zapp, P. & Walachowicz, F. Comparative Life Cycle Assessment of NdFeB Permanent Magnet Production from Different Rare Earth Deposits. ACS Sustainable Chem. Eng. 6, 5858–5867 (2018). When utilizing this life cycle assessment data for the production of NdFeB magnets, ensure to consider the allocation method based on market prices of rare earth oxides (REOs). Be aware that, for a comprehensive understanding of environmental impacts, a sensitivity analysis through mass-based allocation should also be carried out. This data set is specific to a functional unit of 1 kg NdFeB magnet, and any extrapolation should maintain equivalent ratios or be adjusted according to the actual weight of magnets being assessed. 使用本生命周期评估数据进行NdFeB磁铁的生产时，确保考虑基于稀土氧化物（REOs）市场价格的分摊方法。为了更全面地了解环境影响，还应进行基于质量分摊的敏感性分析。此数据集特定于1公斤NdFeB磁铁的功能单元，任何外推应保持等价比率或根据被评估磁铁的实际重量进行调整。 Inventory: The internal review was done by several iteration steps concerning raw data validation, raw data documentation, representativity, completeness and consistency of modelling with regard to ISO 14040 and 14044. 清单： 内部审查通过几个迭代步骤完成，涉及原始数据验证、原始数据记录、代表性、完整性、与 ISO 14040 和 14044 有关的建模的一致性。 Tiangong LCI Data Working Group 天工LCI数据工作小组 Tao Wang, twang@iue.ac.cn 汪涛, twang@iue.ac.cn twang@iue.ac.cn twang@iue.ac.cn 2023-12-17T23:00:59+08:00 2024-04-20T15:07:15.536348+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=70db3953-e6f2-42d0-82df-d2301a8eb9db&version=01.00.000&stock=TianGong Tiangong LCI Data Working Group 天工LCI数据工作小组 false Free of charge for all users and uses Electricity Input 0.3276 0.3276 Calculated Bayan Obo: calculation based on Selection Guide for Process Equipment3 Bayan Obo: calculation based on Selection Guide for Process Equipment3 Iron oxide Output 265.6 265.6 Calculated Iron oxide. Bayan Obo: calculation based on ore concentration and yield Iron oxide. Bayan Obo: calculation based on ore concentration and yield Niobium oxide Output 0.76 0.76 Calculated Niobium oxide. Bayan Obo: calculation based on ore concentration and yield Niobium oxide. Bayan Obo: calculation based on ore concentration and yield tailings (unspecified) Output 158.7 158.7 Calculated Bayan Obo: estimated by experts from RWTH Aachen University Bayan Obo: estimated by experts from RWTH Aachen University Ore pulp Output 724.0 724.0 Calculated Ore pulp. Bayan Obo: input for next process: Flotation Ore pulp. Bayan Obo: input for next process: Flotation