NL8006946A - Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze. - Google Patents

Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze. Download PDF

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Publication number
NL8006946A
NL8006946A NL8006946A NL8006946A NL8006946A NL 8006946 A NL8006946 A NL 8006946A NL 8006946 A NL8006946 A NL 8006946A NL 8006946 A NL8006946 A NL 8006946A NL 8006946 A NL8006946 A NL 8006946A
Authority
NL
Netherlands
Prior art keywords
yttrium
lanthanides
phosphoric acid
calcium sulfate
phosphate
Prior art date
Application number
NL8006946A
Other languages
English (en)
Dutch (nl)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Priority to NL8006946A priority Critical patent/NL8006946A/nl
Priority to DE8181201341T priority patent/DE3176901D1/de
Priority to EP81201341A priority patent/EP0054993B1/en
Priority to AT81201341T priority patent/ATE37855T1/de
Priority to US06/330,519 priority patent/US4387077A/en
Priority to JP56206790A priority patent/JPS57156328A/ja
Publication of NL8006946A publication Critical patent/NL8006946A/nl

Links

Classifications

    • 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
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • 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
    • C01F17/10—Preparation or treatment, e.g. separation or purification
    • C01F17/17—Preparation or treatment, e.g. separation or purification involving a liquid-liquid extraction
    • 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
    • C01F17/218—Yttrium oxides or hydroxides
    • 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
    • C01F17/224—Oxides or hydroxides of lanthanides
    • 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
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/229—Lanthanum oxides or hydroxides
    • 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
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/235—Cerium oxides or hydroxides
    • 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
    • C01F17/241—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion containing two or more rare earth metals, e.g. NdPrO3 or LaNdPrO3
    • 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
    • C01F17/276—Nitrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
NL8006946A 1980-12-20 1980-12-20 Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze. NL8006946A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL8006946A NL8006946A (nl) 1980-12-20 1980-12-20 Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze.
DE8181201341T DE3176901D1 (en) 1980-12-20 1981-12-10 Process for the recovery of practically radium-free calcium sulphate, yttrium and lanthanides
EP81201341A EP0054993B1 (en) 1980-12-20 1981-12-10 Process for the recovery of practically radium-free calcium sulphate, yttrium and lanthanides
AT81201341T ATE37855T1 (de) 1980-12-20 1981-12-10 Verfahren zur gewinnung von fast radium-freiem kalziumsulfat, yttrium und lanthaniden.
US06/330,519 US4387077A (en) 1980-12-20 1981-12-14 Process for the recovery of substantially radium free calcium sulphate, yttrium and lanthanides, as well as calcium sulphate, yttrium and lanthanides obtained by this process
JP56206790A JPS57156328A (en) 1980-12-20 1981-12-21 Recovery of substantially radium-free calcium sulfate, yttrium and lanthanide and products thereby

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8006946A NL8006946A (nl) 1980-12-20 1980-12-20 Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze.
NL8006946 1980-12-20

Publications (1)

Publication Number Publication Date
NL8006946A true NL8006946A (nl) 1982-07-16

Family

ID=19836353

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8006946A NL8006946A (nl) 1980-12-20 1980-12-20 Werkwijze voor het winnen van praktisch radiumvrij calciumsulfaat, yttrium en lanthaniden, alsmede calciumsulfaat, yttrium en lanthaniden verkregen volgens deze werkwijze.

Country Status (6)

Country Link
US (1) US4387077A (ja)
EP (1) EP0054993B1 (ja)
JP (1) JPS57156328A (ja)
AT (1) ATE37855T1 (ja)
DE (1) DE3176901D1 (ja)
NL (1) NL8006946A (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396052A (en) * 1990-12-14 1995-03-07 The Rubbright Group, Inc. Ceramic utensil for microwave cooking
RU2031842C1 (ru) * 1991-07-01 1995-03-27 Юрий Георгиевич Горный Способ извлечения редкоземельных элементов из фосфатной руды
US5368736A (en) * 1993-07-26 1994-11-29 The United States Of America As Represented By The United States Department Of Energy Process for the separation and purification of yttrium-90 for medical applications
BE1013634A3 (fr) * 2000-08-03 2002-05-07 Ecophos Procede de production d'acide phosphorique.
WO2002060817A1 (en) * 2000-10-05 2002-08-08 Pcs Nitrogen Fertilizer, L.P. Gypsum decontamination process

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1944048A (en) * 1932-08-08 1934-01-16 Southern Mineral Products Corp Process of purifying phosphates
US2425573A (en) * 1940-11-28 1947-08-12 Soddy Frederick Separation of thorium and the rareearth group from minerals
US2531977A (en) * 1948-01-22 1950-11-28 Allied Chem & Dye Corp Process for manufacture of phosphoric acid
DE1923630A1 (de) * 1968-06-17 1969-12-18 Multi Minerals Ltd Verfahren zur Gewinnung von Verbindungen seltener Erden und anderen Metallverbindungen aus sauren Loesungen
US3647361A (en) * 1969-12-03 1972-03-07 Molybdenum Corp Two-stage countercurrent leaching process for the recovery of phosphates, yttrium and rare earth values
IL40832A0 (en) * 1971-11-18 1973-01-30 Kemira Oy The recovery of chemicals from a side product of phosphate fertilizer production
DE2218382C3 (de) * 1972-04-15 1975-08-21 Gebrueder Giulini Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von reinem Calciumsulfat beim Phosphorsäurenaßaufschluß
GB1394734A (en) * 1972-04-26 1975-05-21 Unie Van Kunstmestfab Bv Process for the purification of waste product calcium sulphate
US4041125A (en) * 1973-06-15 1977-08-09 Forskningsgruppe For Sjeldne Jordarter Process for separation of the lanthanides
JPS51138063A (en) * 1975-05-23 1976-11-29 Sumitomo Chem Co Ltd Treating method of waste water for washing by-produced gypsum
US4282192A (en) * 1980-02-27 1981-08-04 Olin Corporation Process for producing a calcium sulfate product containing low amounts of radium

Also Published As

Publication number Publication date
EP0054993B1 (en) 1988-10-12
JPS57156328A (en) 1982-09-27
DE3176901D1 (en) 1988-11-17
US4387077A (en) 1983-06-07
ATE37855T1 (de) 1988-10-15
EP0054993A1 (en) 1982-06-30

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A1B A search report has been drawn up
BV The patent application has lapsed