FR2160544A1 - Chemicals (incl lanthanides) recovery - from residues from compound fertilizer prodn - Google Patents

Chemicals (incl lanthanides) recovery - from residues from compound fertilizer prodn

Info

Publication number
FR2160544A1
FR2160544A1 FR7240737A FR7240737A FR2160544A1 FR 2160544 A1 FR2160544 A1 FR 2160544A1 FR 7240737 A FR7240737 A FR 7240737A FR 7240737 A FR7240737 A FR 7240737A FR 2160544 A1 FR2160544 A1 FR 2160544A1
Authority
FR
France
Prior art keywords
residue
lanthanides
prod
fertiliser
chemicals
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
FR7240737A
Other languages
French (fr)
Other versions
FR2160544B3 (en
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.)
Kemira Oyj
Original Assignee
Kemira Oyj
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 Kemira Oyj filed Critical Kemira Oyj
Publication of FR2160544A1 publication Critical patent/FR2160544A1/en
Application granted granted Critical
Publication of FR2160544B3 publication Critical patent/FR2160544B3/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen
    • C01B33/10—Compounds containing silicon, fluorine, and other elements
    • C01B33/103—Fluosilicic acid; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • 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
    • C01F17/224—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
    • C01F17/247—Carbonates
    • 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)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Analytical Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Abstract

Recovering chemicals from the by-prod residue obtd from fertiliser prod in which (a) the residue (enriched in the impurities contained in phosphate minerals usd for fertiliser prod) is repeatedly dissolved in H2SO4 at elevated temp to recover Si and F, (b) the H2SO4 slurry is neutralised with NH3 to recover (NH4)2SO4, which remains in the filtrate after filtration (c) the residue is slurried with water and treated with NH3 and CO2 to give the corresp. carbonates and (NH4)S2O4 ( the latter being collected), (d) the carbonate residue is dissolved in HNO3 and the lanthanides are extracted with an org. solvent, and (e) the remaining impurities of the original residue are ppted by neutralisation and opt. recycled into the compound fertiliser mfg. process.
FR7240737A 1971-11-18 1972-11-16 Chemicals (incl lanthanides) recovery - from residues from compound fertilizer prodn Granted FR2160544A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI330371 1971-11-18

Publications (2)

Publication Number Publication Date
FR2160544A1 true FR2160544A1 (en) 1973-06-29
FR2160544B3 FR2160544B3 (en) 1975-11-28

Family

ID=8508261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7240737A Granted FR2160544A1 (en) 1971-11-18 1972-11-16 Chemicals (incl lanthanides) recovery - from residues from compound fertilizer prodn

Country Status (3)

Country Link
DE (1) DE2255927A1 (en)
FR (1) FR2160544A1 (en)
IL (1) IL40832A0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2523319C1 (en) * 2013-03-01 2014-07-20 Федеральное государственное бюджетное учреждение науки Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) Method of purifying phosphate-fluoride concentrate of ree

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8006946A (en) * 1980-12-20 1982-07-16 Stamicarbon METHOD FOR RECOVERING PRACTICAL RADIUM-FREE CALCIUM SULFATE, YTTRIUM AND LANTHANIDES, AND OBTAINED CALCIUM SULFATE, YTTRIUM AND LANTHANIDES OBTAINED BY THIS PROCESS.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2523319C1 (en) * 2013-03-01 2014-07-20 Федеральное государственное бюджетное учреждение науки Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) Method of purifying phosphate-fluoride concentrate of ree

Also Published As

Publication number Publication date
FR2160544B3 (en) 1975-11-28
DE2255927A1 (en) 1973-05-24
IL40832A0 (en) 1973-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse