5a85a39e-4f61-4ed0-960a-8f4d79bb0ec1 Rare Earth production;Nd metal production;In-situ leaching;neodymium iron boron (NdFeB) magnet 稀土生产;金属钕生产;原位浸出;钕铁硼（NdFeB）磁铁 Unit processes Materials production Metals and semimetals The neodymium iron boron (NdFeB) magnet produced through this industrial process is intended for use in applications requiring high-strength permanent magnets. These magnets are commonly utilized in various technological devices such as hard disk drives, wind turbines, electric vehicles, and speakers due to their superior magnetic properties. 通过这个工业过程生产的钕铁硼（NdFeB）磁铁，是用于需要高强度永磁体的应用。这些磁铁因其出色的磁性能，通常被用于各种技术设备，如硬盘驱动器、风力涡轮机、电动车辆和扬声器。 The functional unit is a 1 kg NdFeB magnet 17 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 neodymium iron boron (NdFeB) magnet produced through this industrial process is intended for use in applications requiring high-strength permanent magnets. These magnets are commonly utilized in various technological devices such as hard disk drives, wind turbines, electric vehicles, and speakers due to their superior magnetic properties. 通过这个工业过程生产的钕铁硼（NdFeB）磁铁，是用于需要高强度永磁体的应用。这些磁铁因其出色的磁性能，通常被用于各种技术设备，如硬盘驱动器、风力涡轮机、电动车辆和扬声器。 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 using the data set for the rare earth production process of neodymium and praseodymium for NdFeB magnets, please note that the allocation method is based on market prices of rare earth oxides (REOs). For users concerned with methodological consistency, consider the sensitivity analysis using mass-based allocation to estimate the impact of the allocation method on uncertainty. Ensure proper interpretation by considering this allocation method and the specific final solvent extraction step (SX5) where Nd and Pr are separated. The data is defined per functional unit of 1 kg of NdFeB magnet. 在使用钕和镨的稀土生产过程数据集制造NdFeB磁铁时，请注意，分配方法是基于稀土氧化物（REOs）的市场价格。对于关心方法学一致性的用户，考虑使用基于质量的分配进行敏感性分析，以估计分配方法对不确定性的影响。在解释数据时，需考虑这种分配方法及Nd和Pr被分离的特定最终溶剂提取步骤（SX5）。数据按功能单元定义，即每1公斤NdFeB磁铁。 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 2023-12-17T23:31:09+08:00 2024-04-20T15:07:15.546239+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=5a85a39e-4f61-4ed0-960a-8f4d79bb0ec1&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 37.440000000000005 37.440000000000005 Calculated Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium fluoride Input 0.048 0.048 Calculated Neodymium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium fluoride Input 0.0003 0.0003 Calculated Neodymium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Lithium fluoride Input 0.0044 0.0044 Calculated lithium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature lithium fluoride. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature particles (> PM10),particles (> PM10),particles (>PM10) Input 0.00037 0.00037 Calculated Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium oxide Input 1.13 1.13 Calculated Neodymium oxide. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Neodymium oxide. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature tungsten Input 0.0027 0.0027 Calculated Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Graphite (anode and melting pot) Input 0.17 0.17 Calculated Graphite (anode and melting pot). Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Graphite (anode and melting pot). Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Fire proof bricks Input 0.09 0.09 Calculated Fire proof bricks. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature Fire proof bricks. Bayan Obo: energy demand, amounts of electrolyte, anodes and cathodes are estimated from literature transport in t*km,transport in t*km Input 0.19 0.19 Bayan Obo: calculated by www.google.de/maps Bayan Obo: calculated by www.google.de/maps Waste (solid) Output 0.217 0.217 Calculated Bayan Obo: melting pot, tungsten cathode, graphite anode Bayan Obo: melting pot, tungsten cathode, graphite anode carbon dioxide (fossil) Output 0.055 0.055 Calculated After Obo 原文未区分bio和fossil，根据专家判断此处为fossil carbon monoxide,carbon monoxide (fossil) Output 0.211 0.211 Calculated After Obo 原文未区分bio和fossil，根据专家判断此处为fossil HFC-116 Output 1.2e-05 1.2e-05 Calculated Bayan Obo: assumption: 10 % of the CF4 value were emitted as C2F6 Bayan Obo: assumption: 10 % of the CF4 value were emitted as C2F6 particles (> PM10),particles (> PM10),particles (>PM10) Output 0.052 0.052 Calculated After Obo Bayan Obo FC-14 Output 0.00012 0.00012 Unknown derivation Bayan Obo: based on PCF emissions of aluminum electrolysis Bayan Obo: based on PCF emissions of aluminum electrolysis hydrogen fluoride Output 4e-05 4e-05 Calculated Bayan Obo: based on mass balance Bayan Obo: based on mass balance neodymium Output 1.0 1.0 Calculated After Obo Bayan Obo