关键数据集信息 | |
位置 | FJ-CN |
地域代表性说明 | 福建省 |
参考年 | 2015 |
名字 |
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数据集使用建议 | 在使用此数据集进行生命周期评估时,请考虑以下事项: - 该数据集特定于中国福建省的溶剂萃取设施,可能不代表全球所有溶剂萃取过程。 - 注意到初级稀土资源中可能存在的大量放射性元素,尤其是钍和铀,这影响了环境影响评估。 - 必须在影响评估中包括额外的纯化步骤,以实现个别稀土溶液中超过99%的纯度。 - 相邻稀土离子的分离可能涉及复杂萃取剂的行为,这在生命周期评估过程中应谨慎建模。 |
产品或过程的技术目的 | 稀土元素渗滤液生产通过溶剂萃取和离子吸附粘土主要用于生产单独的稀土离子,随后用于各种高科技应用,包括电子产品、磁体、陶瓷以及作为化学工业中的催化剂。该工艺有效地分离重稀土离子、中稀土离子和轻稀土离子,用于这些先进应用中所需的高纯度(>99%)稀土溶液的创造。 |
分类 |
类名
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层次结构级别
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关于数据集的一般性意见 | 稀土元素渗滤液生产通过溶剂萃取和离子吸附粘土主要用于生产单独的稀土离子,随后用于各种高科技应用,包括电子产品、磁体、陶瓷以及作为化学工业中的催化剂。该工艺有效地分离重稀土离子、中稀土离子和轻稀土离子,用于这些先进应用中所需的高纯度(>99%)稀土溶液的创造。 |
版权 | 不 |
数据集的所有者 | |
参考定量 | |
参考流 |
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功能单元 | 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. |
技术代表性 | |
技术说明,包括后台系统 | 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 |
流程图或图片 |
生命周期清单方法和分配 | |||||
数据集的类型 | LCI result | ||||
生命周期清单方法原理 | Attributional | ||||
偏离生命周期清单方法原理/解释 | 无 | ||||
生命周期清单方法途径 |
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与建模常数/解释的偏差 | 无 | ||||
数据来源、处理和代表性 | |||||
偏离数据截止和完整性原则/解释 | 无 | ||||
偏离数据选择和组合原则/解释 | 无 | ||||
偏离数据处理和外推原则/解释 | 无 | ||||
用于此数据集的数据源 | |||||
完整性 | |||||
产品模型的完整性 | No statement | ||||
验证 | |||||
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数据生成 | |
数据集生成/建模 | |
数据输入方式 | |
时间戳(上次保存) | 2024-04-19T20:27:13+08:00 |
出版和所有权 | |
UUID | 3517a142-304c-42d8-bd19-83ac87efe846 |
最后修订日期 | 2024-05-13T14:53:27.691036+08:00 |
数据集版本 | 01.00.005 |
永久数据集 URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=3517a142-304c-42d8-bd19-83ac87efe846&version=01.00.000&stock=TianGong |
数据集的所有者 | |
版权 | 不 |
许可证类型 | Free of charge for all users and uses |
输入
流类型 | 分类 | 流 | 位置 | 平均量 | 计算量 | 最小量 | 最大量 | ||
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Product flow | Emissions / Metal and semimetal elements and ions | 57.74 m3 | 57.74 m3 | ||||||
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Product flow | Energy carriers and technologies / Electricity | 1460.0 MJ | 1460.0 MJ | ||||||
Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 2618.3 kg | 2618.3 kg | ||||||
Product flow | Materials production / Inorganic chemicals | 5701.0 kg | 5701.0 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 433.0 kg | 433.0 kg | ||||||
Product flow | Materials production / Other mineralic materials | 38690.0 kg | 38690.0 kg | ||||||
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Product flow | Materials production / Inorganic chemicals | 315.0 kg | 315.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 18.6 kg | 18.6 kg | ||||||
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Product flow | Materials production / Organic chemicals | 8.5 kg | 8.5 kg | ||||||
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Product flow | Materials production / Organic chemicals | 13.8 kg | 13.8 kg | ||||||
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Product flow | Materials production / Organic chemicals | 18.6 kg | 18.6 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 30.84 kg | 30.84 kg |
输出
流类型 | 分类 | 流 | 位置 | 平均量 | 计算量 | 最小量 | 最大量 | ||
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Product flow | Materials production / Organic chemicals | 149.0 kg | 149.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 16.0 kg | 16.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 33.0 kg | 33.0 kg | ||||||
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Product flow | Materials production / Metals and semimetals | 121.0 kg | 121.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 26.0 kg | 26.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 25.0 kg | 25.0 kg | ||||||
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Product flow | Materials production / Inorganic chemicals | 19.0 kg | 19.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 10.0 kg | 10.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 10.0 kg | 10.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 125.0 kg | 125.0 kg | ||||||
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Product flow | Materials production / Organic chemicals | 13.0 kg | 13.0 kg | ||||||
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Product flow | Wastes / Radioactive waste | 58.98 kBq | 58.98 kBq | ||||||
Waste flow | Wastes / Production residues | 1.47 kg | 1.47 kg | ||||||
Waste flow | Wastes / Other waste | 1.17 kg | 1.17 kg | ||||||
Waste flow | Wastes / Production residues | 2.9 kg | 2.9 kg | ||||||
Product flow | End-of-life treatment / Waste water treatment | 29.47 kg | 29.47 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 2.67 kg | 2.67 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 0.17 kg | 0.17 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 6.97 kg | 6.97 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.02 kg | 0.02 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.44 kg | 0.44 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.00763 kg | 0.00763 kg | ||||||
Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 2101.3 kg | 2101.3 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.00117 kg | 0.00117 kg | ||||||
Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.0129 kg | 0.0129 kg | ||||||
Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.00881 kg | 0.00881 kg | ||||||
Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.0522 kg | 0.0522 kg | ||||||
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Product flow | Emissions / Metal and semimetal elements and ions | 1.27 kg | 1.27 kg | ||||||
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Product flow | Materials production / Metals and semimetals | 1000.0 kg | 1000.0 kg |