BR0304127A - Process for obtaining and separating tantalum and niobium from low tantalum raw materials - Google Patents

Process for obtaining and separating tantalum and niobium from low tantalum raw materials

Info

Publication number
BR0304127A
BR0304127A BR0304127-1A BR0304127A BR0304127A BR 0304127 A BR0304127 A BR 0304127A BR 0304127 A BR0304127 A BR 0304127A BR 0304127 A BR0304127 A BR 0304127A
Authority
BR
Brazil
Prior art keywords
niobium
tantalum
raw materials
obtaining
separating
Prior art date
Application number
BR0304127-1A
Other languages
Portuguese (pt)
Inventor
Walter Bludssus
Uwe Boehmke
Original Assignee
Starck H C Gmbh
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 Starck H C Gmbh filed Critical Starck H C Gmbh
Publication of BR0304127A publication Critical patent/BR0304127A/en

Links

Classifications

    • 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
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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
    • C22B3/306—Ketones or aldehydes
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • 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

"PROCESSO PARA A OBTENçãO E SEPARAçãO DE TâNTALO E NIóBIO A PARTIR DE MATéRIAS-PRIMAS POBRES EM TâNTALO". Processo para a obtenção dos teores de tântalo e nióbio a partir de matérias-primas, que contêm Ta~ 2~O~ 5~ e Nb~ 2~O~ 5~ em uma razão de peso de Ta~ 2~O~ 5~ para Nb~ 2~O~ 5~ de menos de 2 : 3, mediante desintegração da matéria-prima com ácido fluorídrico e extração da solução fluorídrica com um solvente orgânico insolúvel na água, sendo que a solução fluorídrica a ser extraída apresenta uma normalidade de no máximo 15 N e o refinado da extração é termicamente decomposto sob recuperação de HF ou é neutralizado pela adição de óxido de cálcio e/ou hidróxido de cálcio e o sólido contendo nióbio assim formado é reduzido em ferro-nióbio através de estágios de processos pirometalúrgicos."PROCESS FOR OBTAINING AND SEPARATING TEST AND NIOBIO FROM POOR ENTIRE RAW MATERIALS". Process for obtaining tantalum and niobium contents from raw materials containing Ta ~ 2 ~ O ~ 5 ~ and Nb ~ 2 ~ O ~ 5 ~ in a weight ratio of Ta ~ 2 ~ O ~ 5 ~ to Nb ~ 2 ~ O ~ 5 ~ of less than 2: 3 by disintegrating the raw material with hydrofluoric acid and extracting the hydrofluoric solution with a water-insoluble organic solvent, the hydrofluoric solution to be extracted being normal. maximum 15 N and the extraction refining is thermally decomposed under HF recovery or is neutralized by the addition of calcium oxide and / or calcium hydroxide and the niobium-containing solid thus formed is reduced to ferro-niobium through stages of pyrometallurgical processes. .

BR0304127-1A 2002-09-04 2003-09-02 Process for obtaining and separating tantalum and niobium from low tantalum raw materials BR0304127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10240697 2002-09-04

Publications (1)

Publication Number Publication Date
BR0304127A true BR0304127A (en) 2004-09-08

Family

ID=31724287

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0304127-1A BR0304127A (en) 2002-09-04 2003-09-02 Process for obtaining and separating tantalum and niobium from low tantalum raw materials

Country Status (2)

Country Link
BR (1) BR0304127A (en)
DE (1) DE10335448B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100357464C (en) * 2006-06-03 2007-12-26 郭青蔚 Technology of preparing fluorine less niobium oxide by oxalic acid system extraction method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2733193C2 (en) * 1977-07-22 1986-10-23 Hermann C. Starck Berlin, 1000 Berlin Process for the extraction of tantalum-niobium-iron alloys from high titanium content niobium-tantalum ores, slags or residues with the usual tin contents
DE3211286A1 (en) * 1981-04-02 1982-10-21 Hermann C. Starck Berlin, 1000 Berlin Process for recovering mineral acid compounds free from radiation from mineral-acid ores containing, in complex form, uranium, thorium, titanium and rare earths
DE4021207A1 (en) * 1990-07-03 1992-01-16 Starck Hermann C Fa PROCESS FOR OBTAINING AND SEPARATING TANTAL AND NIOB
DE4404374C1 (en) * 1994-02-11 1995-05-18 Starck H C Gmbh Co Kg Recovery and sepn of tantalum and niobium from materials contg. both

Also Published As

Publication number Publication date
DE10335448B4 (en) 2016-07-21
DE10335448A1 (en) 2004-03-18

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired