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WO2002042505A8 - Method for loparite concentrate processing - Google Patents

Method for loparite concentrate processing

Info

Publication number
WO2002042505A8
WO2002042505A8 PCT/RU2000/000472 RU0000472W WO0242505A8 WO 2002042505 A8 WO2002042505 A8 WO 2002042505A8 RU 0000472 W RU0000472 W RU 0000472W WO 0242505 A8 WO0242505 A8 WO 0242505A8
Authority
WO
WIPO (PCT)
Prior art keywords
concentrate
processing
loparite
nitric acid
breaking down
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.)
Ceased
Application number
PCT/RU2000/000472
Other languages
French (fr)
Russian (ru)
Other versions
WO2002042505A1 (en
Inventor
Anatoly Nikolaevich Sviridov
Valery Dmitrievich Kosynkin
Larisa Ivanovna Yurova
Sergei Vladimirovich Shestakov
Vladimir Grigoryevich Morozov
Nikolai Vladimirovich Zots
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2002042505A1 publication Critical patent/WO2002042505A1/en
Publication of WO2002042505A8 publication Critical patent/WO2002042505A8/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C22B3/065—Nitric 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • 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
    • C22B59/00—Obtaining rare earth metals
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The invention relates to hydrometallurgical ore concentrate processing, more specifically to loparite concentrate processing. The inventive method consists in grinding the concentrate in order to obtain a grain size of at least 0.075 mm, breaking down the loparite concentrate by nitric acid at atmospheric pressure and a temperature higher than 100 °C, thereby producing a hydrated cake of refractory metals and a nitrate solution of rare-earth elements, filtrating said hydrated cake and subsequent processing of the obtained products. Said invention is characterised in that the breaking down is carried out at an initial concentration of nitric acid in a pulp ranging from 300 to 500 g/l, a temperature of 105-110 °C and in the presence of catalysing additives of fluorine containing compositions in a quantity of 1.0 7.5 % in relation to the concentrate mass in terms of fluorine-ion. HF, NH4F, NH4HF2, NaF, CaF2 and mixtures thereof are used as the fluorine containing additives.
PCT/RU2000/000472 2000-11-21 2000-11-22 Method for loparite concentrate processing Ceased WO2002042505A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2000128900/02A RU2168556C1 (en) 2000-11-21 2000-11-21 Method of processing loparit concentrate
RU2000128900 2000-11-21

Publications (2)

Publication Number Publication Date
WO2002042505A1 WO2002042505A1 (en) 2002-05-30
WO2002042505A8 true WO2002042505A8 (en) 2002-07-04

Family

ID=20242297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2000/000472 Ceased WO2002042505A1 (en) 2000-11-21 2000-11-22 Method for loparite concentrate processing

Country Status (2)

Country Link
RU (1) RU2168556C1 (en)
WO (1) WO2002042505A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2506333C1 (en) * 2012-11-22 2014-02-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" Method for opening loparite concentrates
RU2525951C1 (en) * 2013-08-28 2014-08-20 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method of loparite concentrate processing
AR095821A1 (en) 2014-04-09 2015-11-11 Consejo Nac De Investig Científicas Y Técnicas (Conicet) PROCEDURE FOR OBTAINING LITHIUM COMPOUNDS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU50965A1 (en) * 1936-06-07 1936-11-30 К.К. Белоглазов Method of processing loparite ores or concentrates
SU1041595A1 (en) * 1982-04-16 1983-09-15 Всесоюзный научно-исследовательский институт минерального сырья Method for processing tantalum-niobium raw material
US5084253A (en) * 1989-11-13 1992-01-28 Nuclear Metals, Inc. Method of removing niobium from uranium-niobium alloy
US5384105A (en) * 1992-05-29 1995-01-24 Eco Tek, Inc. Metal and fluorine values recovery from mineral ore treatment
RU2145980C1 (en) * 1999-07-27 2000-02-27 Закрытое акционерное общество "Росредмет" Method of processing loparite concentrate

Also Published As

Publication number Publication date
RU2168556C1 (en) 2001-06-10
WO2002042505A1 (en) 2002-05-30

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DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
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122 Ep: pct application non-entry in european phase