WO2017086888A3 - Method, implemented using reactors, granulators-dryers, and product packaging devices, for manufacturing a single superphosphate (ssp) fertilizer by mixing ready-made compounds, or by mixing entities causing partial soft reactions - Google Patents

Method, implemented using reactors, granulators-dryers, and product packaging devices, for manufacturing a single superphosphate (ssp) fertilizer by mixing ready-made compounds, or by mixing entities causing partial soft reactions Download PDF

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Publication number
WO2017086888A3
WO2017086888A3 PCT/TN2016/000004 TN2016000004W WO2017086888A3 WO 2017086888 A3 WO2017086888 A3 WO 2017086888A3 TN 2016000004 W TN2016000004 W TN 2016000004W WO 2017086888 A3 WO2017086888 A3 WO 2017086888A3
Authority
WO
WIPO (PCT)
Prior art keywords
fertilizer
mixing
granulators
ssp
dryers
Prior art date
Application number
PCT/TN2016/000004
Other languages
French (fr)
Other versions
WO2017086888A2 (en
Inventor
Amor ABIDI
Hédi SAIDI
Najoua AMMAR
Khalil MAALEJ
Jounaydi Mohamed NCIB
Khaled HAJ MABROUK
Mokhtar ZID
Original Assignee
Groupe Chimique Tunisien
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Publication date
Application filed by Groupe Chimique Tunisien filed Critical Groupe Chimique Tunisien
Publication of WO2017086888A2 publication Critical patent/WO2017086888A2/en
Publication of WO2017086888A3 publication Critical patent/WO2017086888A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02—Superphosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/10—Apparatus for the manufacture of superphosphates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

The invention relates to a method wherein a mixture is carried out between a calcium sulfate soil improver and compounds rich in soluble P2O5, or in a reaction medium between phosphate, acidulated derivatives, and the above-mentioned soil improver. Sufficient proportioning of the basic and/or reactive compounds in a suitable manner makes it possible to obtain a simple superphosphate wherein: the P2O5 concentration is easily regulated and adjusted to the desired value, pulping of the resultant solid solution enables homogenization and perfect granulation of said solid solution, and the free acid is kept at the minimal near-zero value, thereby giving the final fertilizer the added value of enabling said fertilizer to become the product of choice for ad hoc blending of complex fertilizers. The invention provides the advantages of : (i) obtaining a material in the form of very spherical, homogeneous granules with optimal hardness, (ii) upgrading unwanted, off-spec phosphorous compounds available in phosphoric acid and fertilizer plants, and (iii) producing said product while respecting environmental requirements (very limited gaseous effluents and nearly nonexistent dust).
PCT/TN2016/000004 2015-11-19 2016-11-21 Method, implemented using reactors, granulators-dryers, and product packaging devices, for manufacturing a single superphosphate (ssp) fertilizer by mixing ready-made compounds, or by mixing entities causing partial soft reactions WO2017086888A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TNTN2015/0508 2015-11-19
TN2015000508A TN2015000508A1 (en) 2015-11-19 2015-11-19 METHOD FOR MANUFACTURING SINGLE PHOSPHATE FERTILIZER (SSP), MIXED COMPLEX MIXTURE, OR MIXTURE OF ENTITIES GENERATING PARTIAL SOFT REACTIONS WITH REACTIONAL, DRYING-DRYING DEVICES AND PACKAGING OF THE PRODUCT

Publications (2)

Publication Number Publication Date
WO2017086888A2 WO2017086888A2 (en) 2017-05-26
WO2017086888A3 true WO2017086888A3 (en) 2017-07-13

Family

ID=58578971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TN2016/000004 WO2017086888A2 (en) 2015-11-19 2016-11-21 Method, implemented using reactors, granulators-dryers, and product packaging devices, for manufacturing a single superphosphate (ssp) fertilizer by mixing ready-made compounds, or by mixing entities causing partial soft reactions

Country Status (2)

Country Link
TN (1) TN2015000508A1 (en)
WO (1) WO2017086888A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538011A (en) *
GB852720A (en) * 1958-04-30 1960-10-26 Dungemittel Technik A G Improved method of manufacture of phosphate fertilizers in granular form
GB2226308A (en) * 1988-12-02 1990-06-27 Technifert Sa Sulphurated product and process for its manufacture
EP0522947A1 (en) * 1991-07-11 1993-01-13 Maroc-Chimie Process and device for the production of triple superphosphate granulate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538011A (en) *
GB852720A (en) * 1958-04-30 1960-10-26 Dungemittel Technik A G Improved method of manufacture of phosphate fertilizers in granular form
GB2226308A (en) * 1988-12-02 1990-06-27 Technifert Sa Sulphurated product and process for its manufacture
EP0522947A1 (en) * 1991-07-11 1993-01-13 Maroc-Chimie Process and device for the production of triple superphosphate granulate

Also Published As

Publication number Publication date
TN2015000508A1 (en) 2017-04-06
WO2017086888A2 (en) 2017-05-26

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