JPS5767024A - Manufacture of rare earth element hydroxide - Google Patents

Manufacture of rare earth element hydroxide

Info

Publication number
JPS5767024A
JPS5767024A JP55140073A JP14007380A JPS5767024A JP S5767024 A JPS5767024 A JP S5767024A JP 55140073 A JP55140073 A JP 55140073A JP 14007380 A JP14007380 A JP 14007380A JP S5767024 A JPS5767024 A JP S5767024A
Authority
JP
Japan
Prior art keywords
phosphate
alkali
earth element
rare earth
caustic alkali
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.)
Granted
Application number
JP55140073A
Other languages
Japanese (ja)
Other versions
JPS5842133B2 (en
Inventor
Tsugio Kaneko
Isamu Sone
Tsuneo Kimura
Hiroshi Kobayashi
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15260333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS5767024(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP55140073A priority Critical patent/JPS5842133B2/en
Priority to AU75780/81A priority patent/AU542274C/en
Priority to BR8106457A priority patent/BR8106457A/en
Priority to GB8130314A priority patent/GB2084556B/en
Publication of JPS5767024A publication Critical patent/JPS5767024A/en
Publication of JPS5842133B2 publication Critical patent/JPS5842133B2/en
Priority to MY727/86A priority patent/MY8600727A/en
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To enhance the utilization efficiency of caustic alkali by producing and removing phosphate from alkali phosphate obtd. by treating ore contg. rate earth element phosphate with caustic alkali and by circulating and using the residual caustic alkali.
CONSTITUTION: Ore contd. rare earth element phosphate is treated with an aqueous caustic alkali soln. having 30W50wt% concn. at 140W200°C to decompose the phosphate into rare earth element hydroxide and alkali phosphate, and after adding hot water, the solid rare earth element hydroxide is separated by filtration and taken out. To the filtered aqueous soln. contg. alkali phosphate is added 3W14 times as much Ca or Mg hydroxide as alkali phosphate by mole, and they are heated to 50W100°C to convert the alkali phosphate into Ca or Mg phosphate and caustic alkali. The solid Ca or Mg phosphate is separated, and the resulting aqueous caustic alkali soln. is circulated and used to decompose ore.
COPYRIGHT: (C)1982,JPO&Japio
JP55140073A 1980-10-07 1980-10-07 Rare earth hydroxide manufacturing method Expired JPS5842133B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55140073A JPS5842133B2 (en) 1980-10-07 1980-10-07 Rare earth hydroxide manufacturing method
AU75780/81A AU542274C (en) 1980-10-07 1981-09-30 Process for producing rare earth hydroxides
BR8106457A BR8106457A (en) 1980-10-07 1981-10-07 PROCESS FOR THE PRODUCTION OF RARE LAND HYDROXIDES
GB8130314A GB2084556B (en) 1980-10-07 1981-10-07 Production of rare earth hydroxides
MY727/86A MY8600727A (en) 1980-10-07 1986-12-30 Process for producing rare earth hydroxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55140073A JPS5842133B2 (en) 1980-10-07 1980-10-07 Rare earth hydroxide manufacturing method

Publications (2)

Publication Number Publication Date
JPS5767024A true JPS5767024A (en) 1982-04-23
JPS5842133B2 JPS5842133B2 (en) 1983-09-17

Family

ID=15260333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55140073A Expired JPS5842133B2 (en) 1980-10-07 1980-10-07 Rare earth hydroxide manufacturing method

Country Status (4)

Country Link
JP (1) JPS5842133B2 (en)
BR (1) BR8106457A (en)
GB (1) GB2084556B (en)
MY (1) MY8600727A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587037A1 (en) * 1985-09-10 1987-03-13 Rhone Poulenc Spec Chim PROCESS FOR TREATING RARE EARTH ORES
FR2589850B1 (en) * 1985-11-08 1990-08-31 Rhone Poulenc Spec Chim IMPROVEMENT IN A PROCESS FOR THE PRODUCTION OF RARE EARTH HYDROXIDES BY THE TREATMENT OF ORES CONTAINING RARE EARTH PHOSPHATES
JPH023915U (en) * 1988-06-16 1990-01-11

Also Published As

Publication number Publication date
BR8106457A (en) 1982-06-22
GB2084556A (en) 1982-04-15
GB2084556B (en) 1984-04-26
MY8600727A (en) 1986-12-31
JPS5842133B2 (en) 1983-09-17
AU542274B2 (en) 1985-02-14
AU7578081A (en) 1982-04-22

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