| 日本的海水化学资源提取技术研究 |
| |
| 引用本文： | 蔡邦肖.日本的海水化学资源提取技术研究[J].海洋学研究,2000,18(4):52-56. |
| |
| 作者姓名： | 蔡邦肖 |
| |
| 作者单位： | 国家海洋局杭州水处理技术研究开发中心!浙江杭州310012 |
| |
| 摘 要： | 海水化学资源例如铀、锂提取技术已进入海水现场小规模试验。以纤维状偕胺肟类化合物为吸附材料 ,每公斤吸附剂的提铀量为 1 g。添加质量分数为 2 0 %聚氯乙烯的尖晶石型锰氧化物粒状海水提锂吸附剂 ,每克吸附剂的提铀量为 1 8mg。浮体式吸铀装置可用于深海作业。流动床或船舶提锂系统 ,可规模化海水提锂。吸锂剂的脱附以及脱锂液的浓缩分离已初步达到小型生产的程度。用吸附法从海水中提取的碳酸锂纯度达 99%以上 ,海水锂回收率为 2 7%。
|
| 关 键 词： | 海水 化学资源 吸附剂 铀 锂 环状化合物 偕胺肟 锰氧化物 |
Extraction of chemical resources in sea water in Japan |
| |
| CAI Bang\|xiao.Extraction of chemical resources in sea water in Japan[J].Journal of Marine Sciences,2000,18(4):52-56. |
| |
| Authors: | CAI Bang\|xiao |
| |
| Abstract: | The techniques to extract uranium and lithium in the sea water have come to small\|scale on the spot test stage. When fiber\|shape amidoximes compounds are used as adsorbent, the quantity of extracted uranium from sea water is 1 g per kg adsorbent. If the granular lithium adsorbent of spinel type manganese oxide with 20% PVC is added the extracted uranium is 18 mg per gram adsorbent. A floating type uranium\|adsorbing device can be used in deep sea; and the floating bed or ship lithium\|extracting system can be used for extracting lithium in a big volume. The desorption of the lithium adsorbent and the concentrated separation of lithium\|removing liquid have attained a small\|scale production stage. The purity of lithium carbonate extracted from the sea water by adsorption method is up to over 99% and the recovery rate of lithium in sea water is 27%. |
| |
| Keywords: | sea water chemical resources adsorbent uranium lithium expoxide amidoxime manganese oxi |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
