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TN2014000010A1 - METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS - Google Patents

METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS

Info

Publication number
TN2014000010A1
TN2014000010A1 TNP2014000010A TN2014000010A TN2014000010A1 TN 2014000010 A1 TN2014000010 A1 TN 2014000010A1 TN P2014000010 A TNP2014000010 A TN P2014000010A TN 2014000010 A TN2014000010 A TN 2014000010A TN 2014000010 A1 TN2014000010 A1 TN 2014000010A1
Authority
TN
Tunisia
Prior art keywords
phosphoric acid
reactional
road
filtration devices
devices related
Prior art date
Application number
TNP2014000010A
Other languages
French (fr)
Inventor
Fourati Amine
Hassairi Jamel
Ben Othmen Sadok
Ben Yahia Ali
Lassoued Tarak
Alyani Khaled
Charfi Aboulhassen
Guesmi Salah
Saidi Abdallah
Saidi Hedi
Ammar Najoua
Besseker Bilel
Original Assignee
Groupe Chimique Tunisien
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 Groupe Chimique Tunisien filed Critical Groupe Chimique Tunisien
Priority to TNP2014000010A priority Critical patent/TN2014000010A1/en
Priority to PCT/TN2014/000005 priority patent/WO2015105464A1/en
Publication of TN2014000010A1 publication Critical patent/TN2014000010A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
    • C01B25/225—Dihydrate process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/2204—Arrangements of vessels used in reacting phosphate-containing material in wet process

Landscapes

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

Abstract

La présente invention est relative à la fabrication d'acide phosphorique par voie humide de concentration moyenne (26 à 30 % P2O5) à partir du phosphate naturel et de l'acide sulfurique. Elle concerne une amélioration à la fois du dispositif réactionnel permettant de pousser le taux de solubilisation de la roche phosphaté à des valeurs supérieurs et d'assurer une meilleure cristallisation du gypse produit, ainsi que du mode de filtration permettant d'améliorer la filtrabilité de la bouillie et de produire un acide phosphorique plus concentré.The present invention relates to the manufacture of wet phosphoric acid of medium concentration (26 to 30% P2O5) from natural phosphate and sulfuric acid. It relates to an improvement of both the reaction device to push the solubilization rate of phosphate rock to higher values and to ensure better crystallization of the gypsum produced, as well as the filtration mode to improve the filterability of the boiled and produce a more concentrated phosphoric acid.

TNP2014000010A 2014-01-08 2014-01-08 METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS TN2014000010A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TNP2014000010A TN2014000010A1 (en) 2014-01-08 2014-01-08 METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS
PCT/TN2014/000005 WO2015105464A1 (en) 2014-01-08 2014-07-24 Wet process for manufacturing phosphoric acid and reaction and filtration devices linked to the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TNP2014000010A TN2014000010A1 (en) 2014-01-08 2014-01-08 METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS

Publications (1)

Publication Number Publication Date
TN2014000010A1 true TN2014000010A1 (en) 2015-07-01

Family

ID=51662294

Family Applications (1)

Application Number Title Priority Date Filing Date
TNP2014000010A TN2014000010A1 (en) 2014-01-08 2014-01-08 METHOD FOR MANUFACTURING WET-ROAD PHOSPHORIC ACID AND REACTIONAL AND FILTRATION DEVICES RELATED TO THE PROCESS

Country Status (2)

Country Link
TN (1) TN2014000010A1 (en)
WO (1) WO2015105464A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3073218B1 (en) 2017-11-09 2022-04-01 Coatex Sas PHOSPHORIC ACID PREPARATION
FR3073219B1 (en) 2017-11-09 2021-11-12 Coatex Sas PREPARATION OF AQUEOUS SUSPENSION OF PHOSPHATE MATERIAL
CN109292744B (en) * 2018-09-04 2020-03-17 安徽六国化工股份有限公司 Method for producing wet-process phosphoric acid and α semi-hydrated phosphogypsum from medium-grade phosphate ore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1343324A (en) * 1962-01-11 1963-11-15 Chemical Construction Corp Method and apparatus for producing phosphoric acid
FR1430814A (en) * 1964-04-27 1966-03-04 Marchon Products Ltd Wet process for manufacturing phosphoric acid
FR1592005A (en) * 1968-11-18 1970-05-04
EP0027484B1 (en) * 1979-10-17 1984-08-15 Societe Industrielle D'acide Phosphorique Et D'engrais S.I.A.P.E. Device for the production of phosphoric acid by the wet process
FR2659954A1 (en) * 1990-03-22 1991-09-27 Voskresensky Ni Process for the preparation of phosphoric acid

Also Published As

Publication number Publication date
WO2015105464A1 (en) 2015-07-16

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