物質フロー分析及び熱力学的解析に基づくレアメタルリサイクル性評価

基于物质流分析和热力学分析的稀有金属可回收性评价

基本信息

批准号：
14J03293
负责人：
LU XIN
金额：
$ 1.22万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2014
资助国家：
日本
起止时间：
2014-04-25 至 2016-03-31
项目状态：
已结题

项目摘要

This study mainly focused on the thermodynamic evaluation on the recyclability of various rare metals. Totally, recycling of end-of-life (EoL) nickel, cobalt, nickel-cobalt based alloy, titanium, zinc, and silicon products was considered. During the recycling, the alloying elements contained in EoL products are always treated as impurity elements, and the removability/controllability of them was quantitatively evaluated using thermodyanmic method in present study.1. Following the thermodynamic evaluation on refinability of EoL Ni- and Co-based superalloys by remelting process carried out in 2014 (H. 26), the activity coefficients of NiO and CoO in CaO-Al2O3-SiO2 slag were measured by metal/slag/gas equilibrium experiments to provide fundamental thermodynamic information for the control of Ni-Co-based solvent alloy using remelting process. Controlling the basicity of CaO-Al2O3-SiO2 slag close to unity is found helpful to remove the contained iron and reduce the oxidation losses of nickel and cobalt during remelting of EoL superalloys. The controllability of Ni-Co-Fe alloy composition using CaO-Al2O3-SiO2 slag was evaluated based on present results.2. The refinability of silicon using slag treatment and directional solidification processes was evaluated by thermodynamic method.3. The removability of aluminum and vanadium from EoL titanium by evaporation of sub-oxides was thermodynamic evaluated.4. Following the thermodynamic evaluation on the refinability of EoL zinc in H.26, the distribution of iron and lead between chloride slag and zinc was experimentally measured.

本研究主要针对各种稀有金属的可回收性进行热力学评价。总体而言，考虑了报废（EoL）镍、钴、镍钴基合金、钛、锌和硅产品的回收利用。在回收过程中，报废产品中所含的合金元素始终被视为杂质元素，并采用热力学方法定量评价其去除/可控性。 1．继2014年开展EoL镍基和钴基高温合金重熔精炼性能热力学评价（H.26）后，通过金属/炉渣/气体测量CaO-Al2O3-SiO2渣中NiO和CoO的活度系数平衡实验为利用重熔过程控制镍钴基溶剂合金提供基本的热力学信息。研究发现，控制CaO-Al2O3-SiO2渣的碱度接近一致有助于去除所含铁并减少EoL高温合金重熔过程中镍和钴的氧化损失。在此基础上，对CaO-Al2O3-SiO2渣制备Ni-Co-Fe合金成分的可控性进行了评价。 2．采用热力学方法评价了渣处理和定向凝固工艺硅的精炼性能。 3．热力学评价了低氧化物蒸发从EoL钛中去除铝和钒的能力。 4．在对 H.26 中 EoL 锌的精炼性进行热力学评估后，通过实验测量了铁和铅在氯化物渣和锌之间的分布。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Thermodynamic evaluation on the refinability of end-of-life nickel- and cobalt-base superalloys with remelting process

重熔镍钴基高温合金报废可精炼性能的热力学评价

DOI：
发表时间：
2014
期刊：
影响因子：
0
作者：
X. Lu; K. Matsubae; K. Nakajima; T. Nagasaka
通讯作者：
T. Nagasaka

Thermodynamic Considerations of Contamination by Alloying Elements of Remelted End-of-Life Nickel- and Cobalt-Based Superalloys

重熔报废镍钴基高温合金合金元素污染的热力学考虑

DOI：
10.1007/s11663-016-0665-2
发表时间：
2016
期刊：
影响因子：
0
作者：
Xin Lu; Kazuyo Matsubae; Kenichi Nakajima; Shinichiro Nakamura; Tetsuya Nagasaka
通讯作者：
Tetsuya Nagasaka

1673KにおけるFe-Co-Ni-O系の酸化物と金属間の相平衡

Fe-Co-Ni-O 氧化物和金属在 1673K 时的相平衡