| Application of zone-melting technique to metal chelate systems-XI Refining of tetrakis(di-n-propionylmethanato)zirconium(IV) from hafnium and trace amounts of some other metals. | |
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MedLine Citation:
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PMID: 18962026 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The zone-melting method was applied to purification of tetrakis(di-n-propionylmethanato)zirconium(IV) which contained copper(II), nickel(II), cobalt(II and III), iron(III) and hafnium(IV) in the forms of their chelates with the common ligand. All minor components having effective distribution coefficients < 1 in the zirconium(IV) chelate were concentrated toward the terminal end of the refining column. When an aqueous solution of zirconium(IV) containing zinC(II) and manganese(II) in addition to the metal contaminants above was treated with di-n-propionylmethane to precipitate the chelate complexes, only zinc, iron and hafnium were found in the precipitated zirconium chelate. The first two were ettectively removed by zone-melting. Though the separation of hafnium was poorer, the technique was efficient enough for practical purposes. |
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Authors:
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I Yoshida; H Kobayashi; K Ueno |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Talanta Volume: 24 ISSN: 0039-9140 ISO Abbreviation: Talanta Publication Date: 1977 Jan |
Date Detail:
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Created Date: 2008-10-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2984816R Medline TA: Talanta Country: England |
Other Details:
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Languages: eng Pagination: 61-3 Citation Subset: - |
Affiliation:
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Department of Organic Synthesis, Faculty of Engineering, Kyushu University, Hakozaki, Higashiku, Fukuoka, Japan 812. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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