SEPARATION OF RARE EARTH ELEMENT
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
专利名称：SEPARATION OF RARE EARTH ELEMENT 发明人：MIYAKE TETSUYA,TAKEDA
KUNIHIKO,ONIZUKA HATSUKI,OKUYAMA
KAZUO,SHIMAMURA YASUKI
申请号：JP10906880
申请日：19800808
公开号：JPS5735650A
公开日：
19820226
专利内容由知识产权出版社提供
摘要：PURPOSE:To enhance the separation efficiency by regulating the sphericity, average grain size and grain size distribution of a granular cation exchanger when rare earth elements are separated from a mixed soln. thereof using a complexing agent and the cation exchanger. CONSTITUTION:When a soln. contg. a plurality of rare earth elements obtd. from monazite, etc. is separated into the elements using a granular cation exchanger, a developing tower provided with a jacket is packed with a cation exchanger having 30-180mum average grain size and a grain size distribution in which >=80% of the exchanger exists in the range of 0.7-1.4 times as large as the average grain size, and
>=95% of the exchanger has <=2.0 roundness. An acceptor soln. is added to convert the exchanger into an acceptor type one, and by feeding an adsorbing soln. contg. a mixture of rare earth elements and a complexing agent, an adsorption zone for rare earth elements is formed. A soln. contg. a complexing agent is then fed to shift the zone by displacement development. A soln. flowing out of the lower part of the tower is taken out fractionally, and the rare earth elements are recovered separately.
申请人：ASAHI CHEMICAL IND
更多信息请下载全文后查看。