FI863610A0 - FOERFARANDE FOER ANRIKNING AV SAELLSYNTA JORDMETALLMALMER. - Google Patents

FOERFARANDE FOER ANRIKNING AV SAELLSYNTA JORDMETALLMALMER.

Info

Publication number
FI863610A0
FI863610A0 FI863610A FI863610A FI863610A0 FI 863610 A0 FI863610 A0 FI 863610A0 FI 863610 A FI863610 A FI 863610A FI 863610 A FI863610 A FI 863610A FI 863610 A0 FI863610 A0 FI 863610A0
Authority
FI
Finland
Prior art keywords
saellsynta
jordmetallmalmer
anrikning
foerfarande foer
ore
Prior art date
Application number
FI863610A
Other languages
Finnish (fi)
Other versions
FI863610A (en
Inventor
Frederic Fabre
Jean-Paul Tognet
Claude Magnier
Original Assignee
Rhone Poulenc Spec Chim
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 Rhone Poulenc Spec Chim filed Critical Rhone Poulenc Spec Chim
Publication of FI863610A0 publication Critical patent/FI863610A0/en
Publication of FI863610A publication Critical patent/FI863610A/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
    • C22B59/00—Obtaining rare earth metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion

Abstract

1. A method of treating an ore containing lanthanides and yttrium, including a first stage comprising grinding the ore, followed by a second stage comprising reacting the ground ore with a concentrated aqueous alkali metal hydroxide solution at an elevated temperature, characterised in that grinding is carried out in the presence of a concentrated aqueous alkali metal hydroxide solution at a temperature of up to 100 degrees C.
FI863610A 1985-09-10 1986-09-08 FOERFARANDE FOER ANRIKNING AV SAELLSYNTA JORDMETALLMALMER. FI863610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8513382A FR2587036A1 (en) 1985-09-10 1985-09-10 PROCESS FOR TREATING RARE EARTH ORES

Publications (2)

Publication Number Publication Date
FI863610A0 true FI863610A0 (en) 1986-09-08
FI863610A FI863610A (en) 1987-03-11

Family

ID=9322759

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863610A FI863610A (en) 1985-09-10 1986-09-08 FOERFARANDE FOER ANRIKNING AV SAELLSYNTA JORDMETALLMALMER.

Country Status (13)

Country Link
EP (1) EP0216687B1 (en)
JP (1) JPS6260833A (en)
KR (1) KR870003219A (en)
CN (1) CN1009115B (en)
AT (1) ATE45389T1 (en)
AU (1) AU593012B2 (en)
BR (1) BR8604288A (en)
CA (1) CA1284886C (en)
DE (1) DE3664929D1 (en)
FI (1) FI863610A (en)
FR (1) FR2587036A1 (en)
NO (1) NO863571L (en)
ZA (1) ZA866838B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584700B1 (en) * 1985-07-11 1990-05-11 Rhone Poulenc Spec Chim PROCESS FOR THE PREPARATION OF PRECURSORS OF RARE EARTH OXIDES AND PRODUCTS OBTAINED
DE3864932D1 (en) * 1987-06-29 1991-10-24 Rhone Poulenc Chimie METHOD FOR OBTAINING A CERIUM OXIDE.
FR2617154B1 (en) * 1987-06-29 1990-11-30 Rhone Poulenc Chimie PROCESS FOR OBTAINING CERIC OXIDE AND CERIC OXIDE WITH NEW MORPHOLOGICAL CHARACTERISTICS
FR2623792B1 (en) * 1987-11-27 1991-02-15 Rhone Poulenc Chimie PROCESS FOR SEPARATING THORIUM AND RARE EARTHS FROM A FLUORIDE CONCENTRATE THEREOF
KR101058567B1 (en) * 2009-11-25 2011-08-23 한국지질자원연구원 Rare Earth Extraction Method in Monazite
CN106591607B (en) * 2016-12-10 2018-06-22 包头稀土研究院 A kind of liquid caustic soda decomposition method of high-grade mixed rare earth concentrates
CN109735706A (en) * 2019-01-31 2019-05-10 湖南中核金原新材料有限责任公司 A method of monazite is handled using two sections of thermokalite decomposition techniques
CN109735705B (en) * 2019-01-31 2021-08-06 湖南欧华科技有限公司 Method for treating rare earth concentrate by utilizing two-stage continuous operation thermokalite decomposition process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR995112A (en) * 1949-07-21 1951-11-28 Produits Chim Terres Rares Soc Treatment of monazitis
US2811411A (en) * 1951-10-16 1957-10-29 George D Calkins Method of processing monazite sand
JPS586947A (en) * 1981-07-03 1983-01-14 Inoue Japax Res Inc Treatment of concentrate of rare earth metal

Also Published As

Publication number Publication date
DE3664929D1 (en) 1989-09-14
JPS6260833A (en) 1987-03-17
EP0216687A1 (en) 1987-04-01
EP0216687B1 (en) 1989-08-09
CN86105862A (en) 1987-03-18
AU6243886A (en) 1987-03-12
CA1284886C (en) 1991-06-18
ATE45389T1 (en) 1989-08-15
NO863571D0 (en) 1986-09-08
CN1009115B (en) 1990-08-08
KR870003219A (en) 1987-04-16
BR8604288A (en) 1987-05-05
NO863571L (en) 1987-03-11
FI863610A (en) 1987-03-11
FR2587036A1 (en) 1987-03-13
ZA866838B (en) 1987-05-27
AU593012B2 (en) 1990-02-01

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Legal Events

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Owner name: RHONE-POULENC SPECIALITES CHIMIQUES