41e1df7e-f4c8-4358-92ed-677ff35c33de Rare Earth Elements (REE) leachate production;Rare Earth Elements (REE);Solvent extraction;Rare earth chloride aqueous solution 稀土元素浸出液生产;稀土元素;溶剂萃取;氯化稀土水溶液 Unit processes Materials production Inorganic chemicals The separated rare earth elements (REE) obtained through solvent extraction processes are critical for various high-tech applications, including the production of magnets for wind turbines and electric vehicles, battery alloys, electronics, optical equipment, and catalysts. The final products, individual rare earth carbonates, are integral to the manufacturing of specialized components where high purity REE are required due to their unique magnetic, luminescent, and electrochemical properties. 通过溶剂萃取工艺分离的稀土元素(REE)对于多种高科技应用至关重要，包括用于风力涡轮机和电动车辆的磁铁生产、电池合金、电子产品、光学设备以及催化剂的制造。最终产品，各种稀土碳酸盐，是制造需求高纯度REE的专业组分中不可或缺的，这得益于它们独特的磁性、发光性和电化学属性。 One ton of rare earth chloride aqueous solution processed at a solvent extraction facility in China to produce individual rare earth carbonates was defined as the functional unit. 28 2014 Bayan Obo (China) After the leaching step, using solvent extraction processes, the metal ion solution is separated into heavy, medium, and light rare earth ions. In addition, due to the ability to handle larger volumes of dilute pregnant solutions in industrial scale, solvent extraction has become the common practice to separate individual rare earth ions. It is worth mentioning that since the separation techniques are according to the variation in the potential of complex formation between the extractants (organic solvents) and the rare earth ions, the separation of neighboring rare earth ions by applying traditional solvent extraction approaches is laborious. Moreover, the presence of significant amount of radioactive elements such as thorium and to a marginal level uranium in primary REE resources and co-extraction of these elements make the REE production process more challenging. Additional solvent extraction steps are also mandatory to produce solutions of individual rare earths with purity higher than 99% 浸出步骤后，使用溶剂萃取工艺，将金属离子溶液分离成重稀土离子、中稀土离子和轻稀土离子。此外，由于能够在工业规模上处理大量稀母液，溶剂萃取已成为分离单个稀土离子的常见做法。值得一提的是，由于分离技术是根据萃取剂（有机溶剂）与稀土离子之间形成络合物的潜力的变化而设计的，因此采用传统的溶剂萃取方法分离相邻的稀土离子是费力的。此外，初级稀土元素资源中存在大量放射性元素（例如钍）和微量铀，以及这些元素的共提取使得稀土元素生产过程更具挑战性。为了生产纯度高于 99% 的各种稀土溶液，还必须进行额外的溶剂萃取步骤 The separated rare earth elements (REE) obtained through solvent extraction processes are critical for various high-tech applications, including the production of magnets for wind turbines and electric vehicles, battery alloys, electronics, optical equipment, and catalysts. The final products, individual rare earth carbonates, are integral to the manufacturing of specialized components where high purity REE are required due to their unique magnetic, luminescent, and electrochemical properties. 通过溶剂萃取工艺分离的稀土元素(REE)对于多种高科技应用至关重要，包括用于风力涡轮机和电动车辆的磁铁生产、电池合金、电子产品、光学设备以及催化剂的制造。最终产品，各种稀土碳酸盐，是制造需求高纯度REE的专业组分中不可或缺的，这得益于它们独特的磁性、发光性和电化学属性。 UFIvbPeEpoZGDkxE6bEc39iDnAc.png LCI result Attributional None 无 Allocation - market value None 无 None 无 None 无 None 无 Vahidi, E. & Zhao, F. Environmental life cycle assessment on the separation of rare earth oxides through solvent extraction. Journal of Environmental Management 203, 255–263 (2017). Vahidi, E. & Zhao, F. Environmental life cycle assessment on the separation of rare earth oxides through solvent extraction. Journal of Environmental Management 203, 255–263 (2017). Users of this dataset should account for the technological specificity of the solvent extraction process when applying this data to LCA models, considering the various separation stages required for achieving the desired purity levels of individual REEs. Special attention should be given to the inclusion or exclusion of impacts associated with the co-extraction of radioactive elements like thorium and uranium. Additional methodological considerations must include the potential need for supplemental extraction steps to isolate each REE and meet high purity specifications, which can affect the overall environmental impact assessment. 使用此数据集的用户在将此数据应用于LCA模型时，应考虑溶剂萃取工艺的技术特性，考虑到达到各个稀土元素所需纯度水平所需的各种分离阶段。应特别注意包括或排除与共提取像钍和铀这样的放射性元素相关的影响。额外的方法论考虑必须包括可能需要的补充萃取步骤，以分离每个REE并满足高纯度规格的需求，这可能影响整体环境影响评估。 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 2024-04-19T20:26:42+08:00 2024-04-20T15:07:20.901946+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=41e1df7e-f4c8-4358-92ed-677ff35c33de&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 Barium chloride Input 41.86 41.86 Calculated Barium chloride Barium chloride Electricity Input 1700.0 1700.0 Calculated sodium hydroxide Input 851.6 851.6 Calculated Hydrochloric acid Input 2317.0 2317.0 Calculated Hydrochloric acid Hydrochloric acid Ammonium bicarbonate Input 766.0 766.0 Calculated Ammonium bicarbonate Ammonium bicarbonate natural gas,natural gas,natural gas Input 29690.0 29690.0 Calculated Sodium carbonate Input 511.0 511.0 Calculated Soda ash Soda ash Sulfonated kerosene Input 18.6 18.6 Calculated Sulfonated kerosene Sulfonated kerosene Alamine 336 Input 0.325 0.325 Calculated Alamine 336 Alamine 336 Naphthenic acid Input 0.232 0.232 Calculated Naphthenic acid Naphthenic acid Disooctyl Phosphate (P204) Input 8.14 8.14 Calculated P204 P204 2-Ethylhexanol Input 0.232 0.232 Calculated 2-Ethylhexanol 2-Ethylhexanol water Input 15.47 15.47 Calculated Water, well, in ground Water, well, in ground Cerium carbonate Output 273.0 273.0 Calculated Cerium carbonate Cerium carbonate Lanthanum carbonate Output 147.0 147.0 Calculated Lanthanum carbonate Lanthanum carbonate Praseodymium carbonate Output 27.0 27.0 Calculated Praseodymium carbonate Praseodymium carbonate Neodymium carbonate Output 87.0 87.0 Calculated Neodymium carbonate Neodymium carbonate samarium Output 11.0 11.0 Calculated Samarium, Europium, Gadolinium chloride Samarium, Europium, Gadolinium chloride Hazardous waste (unspec.) Output 0.0017 0.0017 Calculated municipal waste (unspecified) Output 7.58 7.58 Calculated chemical oxygen demand Output 0.272 0.272 Calculated Biological oxygen demand Output 0.163 0.163 Calculated Biochemical Oxygen Demand5 Biochemical Oxygen Demand5 Suspended solids, unspecified,Suspended solids, unspecified Output 0.0974 0.0974 Calculated ammonia,ammonia Output 0.0225 0.0225 Calculated carbon dioxide (fossil) Output 1612.1 1612.1 Calculated 原文未区分bio和fossil，根据专家判断此处为fossil sulfur oxides Output 11.68 11.68 Calculated particles (> PM10) Output 7.6 7.6 Calculated Nitrogen oxides Output 5.24 5.24 Calculated Nitrogen oxide Nitrogen oxide Rare Earth chloride solution Output 1000.0 1000.0 Calculated