Research on Recycling and Resouae Recovery of Solid Wastes by Hydrothermal Nano-Process

纳米水热法固体废物资源化利用研究

基本信息

批准号：
18201012
负责人：
ITOH Hideaki
金额：
$ 29.29万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

项目摘要

Today, the resource depletion is one of the important issues of all over the world. In order to solve this issue, the higher-efficiency techniques for resource recovery from various solid wastes such as ceramics would be required. However, there are no techniques for recovering the variable resources from solid wastes, especially, ceramics, because most ceramics have relatively high stability for heat, mechanical stress and so on. In this research, we investigated on the development of the higher-efficiency techniques for valuable resource from ceramics such as cemented carbides, zirconia and magnet by the hydrothermal nano-process. To show that hydrothermal nano-process technique we proposed is one of key-technologies for solving the resource recovery issues, we investigated the following topics :1.Hydrothermal mechanochemical nano-process2.Hydrothermal oxidation nano-process3.Hydrothermal mineralization nano-processAs a result of this research, we succeeded in recovering valuable res … More ources from the following wastes :1.WO_3 powder and aqueous solution with Co ions were separated from WC-Co cemented carbide cutting tools by the hydrothermal oxidation treatment with acid aqueous solution.2.Zrconia powder for sintering with yttrium was recovered from spent partially stabilized zirconia sintered compact by the hydrothermal and mechanochemical treatment.3.Ferrite particles consisted of Fe and Mn could be recovered from spent toner carrier powder by the hydrothermal oxidation treatment with H_2O_2.4.Neodymium oxalate was recovered from spent Nd-Fe-B permanent sintered magnet by the hydrothermal oxidation treatment with HC1 and oxalic acid.5.Co-A1 composite-oxide could be recovered from spent cathode of the Li-secondary battery by the hydrothermal oxidation treatment.6.Natural minerals could be recovered from wastewaters with various oxo-anions such as boron, fluorine, arsenic, etc. by the hydrothermal mineralization treatment with mineralizer such as hydrated lime and calcium chloride. Less

如今，资源部署已成为世界各地的重要问题之一。为了解决此问题，需要从诸如陶瓷等各种固体废物（例如陶瓷）中回收资源的更高效率技术。但是，没有从固体废物中恢复可变资源的技术，尤其是陶瓷，因为大多数陶瓷在热，机械应力等方面具有相对较高的稳定性。在这项研究中，我们调查了从水热纳米过程中的陶瓷（例如胶结碳化物，氧化氧基和磁铁）的高效技术的开发。 To show that hydrothermal nano-process technology we proposed is one of key-technologies for solving the resource recovery issues, we investigated the following topics :1.Hydrothermal mechanochemical nano-process2.Hydrothermal oxidation nano-process3.Hydrothermal mineralization nano-processAs a result of this research, we succeeded in recovering valuable res … More sources from the following wastes ：1。WO_3用酸水溶液通过水热氧化处理从WC-CO胶结碳化物切割工具中分离出WO_3粉末和水溶液。2.Zrconia粉末用于与Yttrium杀死Yttrium的粉末，从消费型和机械型的含量均能固定的二氯酸颗粒中，可以从水平和机械上塑造的含量固定。通过H_2O_2.4的水热氧化处理载体粉末通过HC1和草酸的水热氧化处理从支出ND-FE-B永久烧结磁铁中回收。5.CO-A1复合氧化物可以从水平电池中恢复液压氧化物的液压氧化物，可以通过水平氧化量来恢复水平的氧化物。66用水热矿物质处理矿物质矿化剂，例如水合石灰和氯化钙，具有各种氧芳烃的废水，例如硼，氟，砷等。较少的