Title: Separation and extraction of high purity thulium oxide and lutecium oxide by chromatography
Application Number: 85101874 Application Date: 1985.04.01
Publication Number: 1001957 Publication Date: 1986.07.30
Approval Pub. Date: Granted Pub. Date: 1989.07.12
International Classifi-cation: B01D11/00,C01F17/00
Applicant(s) Name: Changchun Inst. of Applied Chemistry, Chinese Acad Address:
Inventor(s) Name: Niu Wei, Peng Chunlin
Attorney & Agent: SONG TIANPING CAO GUIZHEN
Abstract:
     This invention concerns the chromatographic separation of elements and can be used to produce thulium oxide and lutecium oxide of high purity on industrial scale. The production period is shorter and the purity is higher than by method of ion exchange. Take P507 elution resin as the stationary phase and hydrochloric acid as the flow phase, the thulium oxide and lutecium oxide of high purity can be separated and extracted with high efficiency from enriched rare earth material by using colum chromatograph. The purity of Tm2O3 is > 99.995%, and the yield is 90~98%; while the purity of Lu2O3 is 99.99% and the yield is 75~85%.
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