A novel method to stably secure beryllium resources for fusion blankets
A novel method to stably secure beryllium resources for fusion blankets
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稳定确保聚变包层铍资源的新方法
DOI：
10.1016/j.jnucmat.2020.152522
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发表时间：
2020
影响因子：
3.1
通讯作者：
Masaru Nakamichi
中科院分区：
文献类型：
--
作者：
Jae-Hwan Kim;Suguru Nakano;Masaru Nakamichi
示范（DEMO）聚变反应堆将需要大量的铍（Be），约490吨。由于目前世界上Be的总产量约为每年300吨，预计随着聚变反应堆的早日实现，需求将急剧增加。许多铍矿的存在以及关于每个铍矿储备区的信息已经通过调查得到证实。然而，由于传统的Be精炼工艺相当复杂，包括中间产物Be（OH）2的生产工艺、高温处理和有毒粉末状态的处理，因此Be原料是昂贵的。为了向DEMO提供稳定的Be供应，在矿山开发的同时，使用经济和安全的工艺的新型Be精炼技术势在必行。根据这一要求，提出了一种新的、先进的从矿石中提取金属铍的工艺，即采用微波低温熔融湿法工艺，通过溶解性试验表明，经过碱溶液处理和微波加热后，采用酸溶液处理和微波加热的工艺，可使水铍石和绿柱石完全溶解。此外，该方法不仅可用于生产中间产品，如氢氧化铍（Be（OH）2）和氧化铍（BeO），而且可用于生产纯铍金属。此外，该工艺对于提取关键问题之一的铀和用于再利用的氧化物杂质具有很大的优势。
A demonstration (DEMO) fusion reactor will require a huge amount of beryllium (Be) with approximately 490 tons. Since the total production of Be in the world, for now, is approximately 300 tons per year, it is anticipated that the demand is dramatically increased as the early realization of the fusion reactor proceeds. The presence of many Be mines, as well as information on each Be reserve, has already been confirmed with surveys. Since a conventional Be refinement process is considerably complicated including a production process for an intermediate product, Be(OH)2, high-temperature treatments, and handling of toxic powdery states, however, Be raw materials are costly. To provide a steady supply of Be for DEMO, in parallel with the development of mines, a novel Be refinement technique using an economical and safe process is imperative. According to these requirements, a novel and advanced refinement process of Be metal from ores was suggested by applying microwave melting at low temperatures through wet processing.It was obvious as a result of dissolubility tests that bertrandite and beryl ores were completely dissolved by using a process with acid solutions and microwave heating after treatment with base solutions and microwave heating. Further, the process can be utilized to produce not only intermediate products, such as beryllium hydroxide (Be(OH)2) and beryllium oxide (BeO) but also pure beryllium metal. Moreover, this process has great advantages for extracting uranium which is one of critical issues and oxide impurities for reuse.
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影响因子：
3.1
作者：
L. J. Derham
通讯作者：
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微波加热硬化对焦炭铁矿石球团组织和强度的影响
DOI：
10.1016/j.matpr.2020.02.267
发表时间：
2020
期刊：
Materials Today: Proceedings
影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
5
作者：
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影响因子：
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作者：
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