FI59422C - Foerfarande foer anrikning av saellsynta jordmetallfosfater - Google Patents

Foerfarande foer anrikning av saellsynta jordmetallfosfater Download PDF

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Publication number
FI59422C
FI59422C FI1239/74A FI123974A FI59422C FI 59422 C FI59422 C FI 59422C FI 1239/74 A FI1239/74 A FI 1239/74A FI 123974 A FI123974 A FI 123974A FI 59422 C FI59422 C FI 59422C
Authority
FI
Finland
Prior art keywords
solution
calcium
content
filtration
phosphate
Prior art date
Application number
FI1239/74A
Other languages
English (en)
Finnish (fi)
Other versions
FI59422B (fi
Inventor
Gloer Thorvald Mejdell
Harald Stoeren
Original Assignee
Norsk Hydro As
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 Norsk Hydro As filed Critical Norsk Hydro As
Application granted granted Critical
Publication of FI59422B publication Critical patent/FI59422B/fi
Publication of FI59422C publication Critical patent/FI59422C/fi

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
    • C01F17/282—Sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fertilizers (AREA)
  • Cosmetics (AREA)
FI1239/74A 1973-05-02 1974-04-24 Foerfarande foer anrikning av saellsynta jordmetallfosfater FI59422C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO181473 1973-05-02
NO01814/73A NO130109B (zh) 1973-05-02 1973-05-02

Publications (2)

Publication Number Publication Date
FI59422B FI59422B (fi) 1981-04-30
FI59422C true FI59422C (fi) 1981-08-10

Family

ID=19878449

Family Applications (1)

Application Number Title Priority Date Filing Date
FI1239/74A FI59422C (fi) 1973-05-02 1974-04-24 Foerfarande foer anrikning av saellsynta jordmetallfosfater

Country Status (7)

Country Link
DE (1) DE2419928A1 (zh)
FI (1) FI59422C (zh)
HU (1) HU168089B (zh)
NO (1) NO130109B (zh)
RO (1) RO69797A (zh)
SE (1) SE395878B (zh)
SU (1) SU764607A3 (zh)

Also Published As

Publication number Publication date
NO130109B (zh) 1974-07-08
SE395878B (sv) 1977-08-29
RO69797A (ro) 1981-06-30
DE2419928A1 (de) 1974-11-21
FI59422B (fi) 1981-04-30
SU764607A3 (ru) 1980-09-15
HU168089B (zh) 1976-02-28

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