MA71276A1 - Procede de recuperation des terres rares et du sulfate de calcium contenus dans un phosphogypse - Google Patents

Procede de recuperation des terres rares et du sulfate de calcium contenus dans un phosphogypse

Info

Publication number
MA71276A1
MA71276A1 MA71276A MA71276A MA71276A1 MA 71276 A1 MA71276 A1 MA 71276A1 MA 71276 A MA71276 A MA 71276A MA 71276 A MA71276 A MA 71276A MA 71276 A1 MA71276 A1 MA 71276A1
Authority
MA
Morocco
Prior art keywords
sub
rare earth
enriched
calcium sulfate
phosphogypsum
Prior art date
Application number
MA71276A
Other languages
English (en)
Inventor
Khaoula KHALESS
Mounir El Mahdi
Rachid BENHIDA
Sara AIT HAK
Original Assignee
Ocp , Sa
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 Ocp , Sa filed Critical Ocp , Sa
Publication of MA71276A1 publication Critical patent/MA71276A1/fr

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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • 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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/007—Wet processes by acid leaching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un procédé de récupération des terres rares et du sulfate de calcium compris dans un phosphogypse (P<sub>0</sub>) comprenant les étapes suivantes : (a) lavage et broyage du phosphogypse (P<sub>0</sub>) de sorte à obtenir un phosphogypse broyé (P<sub>1</sub>), (b) lixiviation à plusieurs étages du phosphogypse broyé (P<sub>1</sub>) par une solution saline (S<sub>0</sub>), de sorte à obtenir une première solution enrichie en sulfate et en calcium (S<sub>1</sub>) et des insolubles enrichis en terres rares (P<sub>2</sub>, P<sub>3</sub>), (c) lixiviation à plusieurs étages des insolubles enrichis en terres rares (P<sub>2</sub>, P<sub>3</sub>) par une solution acide (S<sub>0'</sub>), de sorte à obtenir une deuxième solution enrichie en sels de terres rares (S<sub>2</sub>) et un solide appauvri en terres rares (P<sub>4</sub>), (d) évaporation de la première solution enrichie en sulfate et en calcium (S<sub>1</sub>), de sorte à obtenir du sulfate de calcium solide (P<sub>5</sub>) et un filtrat riche en sels (S<sub>3</sub>).
MA71276A 2022-09-30 2025-04-04 Procede de recuperation des terres rares et du sulfate de calcium contenus dans un phosphogypse MA71276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2209969A FR3140379B1 (fr) 2022-09-30 2022-09-30 Procédé de récupération des terres rares et du sulfate de calcium contenus dans un phosphogypse
PCT/MA2023/050013 WO2024072201A1 (fr) 2022-09-30 2023-10-02 Procede de recuperation des terres rares et du sulfate de calcium contenus dans un phosphogypse

Publications (1)

Publication Number Publication Date
MA71276A1 true MA71276A1 (fr) 2025-12-31

Family

ID=85018994

Family Applications (1)

Application Number Title Priority Date Filing Date
MA71276A MA71276A1 (fr) 2022-09-30 2025-04-04 Procede de recuperation des terres rares et du sulfate de calcium contenus dans un phosphogypse

Country Status (3)

Country Link
FR (1) FR3140379B1 (fr)
MA (1) MA71276A1 (fr)
WO (1) WO2024072201A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3163954A1 (fr) * 2024-06-28 2026-01-02 Universite Mohammed VI Polytechnique Procédé de Valorisation des boues de phosphate pour la production des terres rares, du carbonate de calcium et des silicates
CN119747368A (zh) * 2024-12-26 2025-04-04 贵州大学 一种利用磷石膏高效分离富集二氧化硅的方法
CN119431080B (zh) * 2025-01-07 2025-04-25 内蒙古科技大学 一种工业稀土硫酸铵盐碱土壤改良剂的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419318A1 (fr) * 1989-09-20 1991-03-27 Rhone-Poulenc Chimie Procédé de récupération des valeurs de terres rares dans les gypses
CN112408452A (zh) * 2020-11-16 2021-02-26 湖南科技大学 一种高效分离磷石膏中稀土并制备高强石膏的溶液体系及应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2528573C1 (ru) * 2013-03-05 2014-09-20 Открытое акционерное общество "Объединенная химическая компания "УРАЛХИМ" Способ извлечения редкоземельных металлов и получения строительного гипса из фосфогипса полугидрата
FR3086672B1 (fr) 2018-09-28 2020-11-13 Ocp Sa Procede de purification et de concentration des terres rares a partir du phosphogypse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419318A1 (fr) * 1989-09-20 1991-03-27 Rhone-Poulenc Chimie Procédé de récupération des valeurs de terres rares dans les gypses
CN112408452A (zh) * 2020-11-16 2021-02-26 湖南科技大学 一种高效分离磷石膏中稀土并制备高强石膏的溶液体系及应用

Also Published As

Publication number Publication date
WO2024072201A1 (fr) 2024-04-04
FR3140379A1 (fr) 2024-04-05
FR3140379B1 (fr) 2024-09-13

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