MA51851B1 - Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum - Google Patents

Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum

Info

Publication number
MA51851B1
MA51851B1 MA51851A MA51851A MA51851B1 MA 51851 B1 MA51851 B1 MA 51851B1 MA 51851 A MA51851 A MA 51851A MA 51851 A MA51851 A MA 51851A MA 51851 B1 MA51851 B1 MA 51851B1
Authority
MA
Morocco
Prior art keywords
phosphogypsum
ammonium sulphate
calcium oxalate
obtaining ammonium
obtaining
Prior art date
Application number
MA51851A
Other languages
French (fr)
Other versions
MA51851A1 (en
Inventor
Rachid Bouhfid
Youssef Tamraoui
Achaby Mounir El
El Kacem Qaiss Abou
Hamdane Younes Alami
Marya RAJI
Original Assignee
Mascir Morocan Foundation For Advanced Science Innovation & Res
Luniversite Mohammed Vi Polytechnique Um6P
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 Mascir Morocan Foundation For Advanced Science Innovation & Res, Luniversite Mohammed Vi Polytechnique Um6P filed Critical Mascir Morocan Foundation For Advanced Science Innovation & Res
Priority to MA51851A priority Critical patent/MA51851B1/en
Priority to PCT/MA2021/050017 priority patent/WO2022108435A1/en
Publication of MA51851A1 publication Critical patent/MA51851A1/en
Publication of MA51851B1 publication Critical patent/MA51851B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

La présente invention concerne un procédé de transformation du phosphogypse, un rejet de l’industrie du phosphate, en produits à hautes valeurs ajoutées à savoir le sulfate d’ammonium et l’oxalate de calcium.The present invention relates to a process for transforming phosphogypsum, a waste product from the phosphate industry, into products with high added values, namely ammonium sulphate and calcium oxalate.

MA51851A 2020-11-23 2020-11-23 Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum MA51851B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA51851A MA51851B1 (en) 2020-11-23 2020-11-23 Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum
PCT/MA2021/050017 WO2022108435A1 (en) 2020-11-23 2021-11-23 Novel method for converting phosphogypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA51851A MA51851B1 (en) 2020-11-23 2020-11-23 Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum

Publications (2)

Publication Number Publication Date
MA51851A1 MA51851A1 (en) 2022-05-31
MA51851B1 true MA51851B1 (en) 2022-08-31

Family

ID=79259423

Family Applications (1)

Application Number Title Priority Date Filing Date
MA51851A MA51851B1 (en) 2020-11-23 2020-11-23 Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum

Country Status (2)

Country Link
MA (1) MA51851B1 (en)
WO (1) WO2022108435A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390509A (en) * 1980-03-10 1983-06-28 Agrico Chemical Company Process for manufacturing ammonium phosphate utilizing an oxalic acid acidulating process
PL200842B1 (en) 2004-09-16 2009-02-27 Adam Nawrocki Method for the manufacture of calcium nitrate
PL412427A1 (en) * 2015-05-20 2016-11-21 Włodzimierz Merka Method for complex utilization of phosphogypsum
FR3054542B1 (en) 2016-07-27 2018-09-07 Ocp Sa PROCESS FOR PRODUCING SODIUM SULFATE FROM PHOSPHOGYPSIS
CN111348633A (en) * 2018-12-24 2020-06-30 四川大学 Wet phosphoric acid purifying process and its extraction liquid regenerating method

Also Published As

Publication number Publication date
WO2022108435A1 (en) 2022-05-27
MA51851A1 (en) 2022-05-31

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