GB941125A - Improvements in and relating to separat'on of zirconium and hafnium - Google Patents

Improvements in and relating to separat'on of zirconium and hafnium

Info

Publication number
GB941125A
GB941125A GB27599/61A GB2759961A GB941125A GB 941125 A GB941125 A GB 941125A GB 27599/61 A GB27599/61 A GB 27599/61A GB 2759961 A GB2759961 A GB 2759961A GB 941125 A GB941125 A GB 941125A
Authority
GB
United Kingdom
Prior art keywords
organic phase
aqueous
extraction column
organic
zirconium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27599/61A
Inventor
Wayne Hicks Keller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAT RES CORP
National Research Corp
Original Assignee
NAT RES CORP
National Research Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NAT RES CORP, National Research Corp filed Critical NAT RES CORP
Priority to GB27599/61A priority Critical patent/GB941125A/en
Publication of GB941125A publication Critical patent/GB941125A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G27/00—Compounds of hafnium
    • C01G27/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
    • C22B3/3846—Phosphoric acid, e.g. (O)P(OH)3
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

Zirconium and hafnium salts are separated by feeding an aqueous solution of their mixture into an extraction column in which an aqueous continuous phase is passed countercurrent to a disperse organic phase, passing the zirconium containing organic phase to a decantation zone, passing the decanted organic phase to a stripping column in which the zirconium salt is extracted from the organic phase with water, periodically analyzing the interface of the continuous organic and aqueous phases in the extraction column for solids, and on their detection, continuously withdrawn from the decantation zone a stream comprising solids, organic and aqueous phases. The stream withdrawn may be passed into a second decantation zone in which the solids are removed, and the liquid phases returned to the extraction column. The process is preferably performed using an acid aqueous phase and feeding the mixture to the extraction column at a point between the aqueous and organic feed points. The invention is described with reference to a flow sheet (not shown) using zirconyl and hafnyl nitrates, tributyl phosphate diluted with a hydrocarbon as the organic phase and nitric acid using a rotary disc contactor as the extraction column. The purified zirconium salt is stripped from the organic phase with diionized water preferably by countercurrent contact in the stripping column. Reference has been directed by the Comptroller to Specifications 800,426 and 807,249.
GB27599/61A 1961-07-29 1961-07-29 Improvements in and relating to separat'on of zirconium and hafnium Expired GB941125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27599/61A GB941125A (en) 1961-07-29 1961-07-29 Improvements in and relating to separat'on of zirconium and hafnium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27599/61A GB941125A (en) 1961-07-29 1961-07-29 Improvements in and relating to separat'on of zirconium and hafnium

Publications (1)

Publication Number Publication Date
GB941125A true GB941125A (en) 1963-11-06

Family

ID=10262260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27599/61A Expired GB941125A (en) 1961-07-29 1961-07-29 Improvements in and relating to separat'on of zirconium and hafnium

Country Status (1)

Country Link
GB (1) GB941125A (en)

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