TNSN06394A1 - PROCESS FOR PRODUCING PHOSPHORIC ACID - Google Patents

PROCESS FOR PRODUCING PHOSPHORIC ACID

Info

Publication number
TNSN06394A1
TNSN06394A1 TNP2006000394A TNSN06394A TNSN06394A1 TN SN06394 A1 TNSN06394 A1 TN SN06394A1 TN P2006000394 A TNP2006000394 A TN P2006000394A TN SN06394 A TNSN06394 A TN SN06394A TN SN06394 A1 TNSN06394 A1 TN SN06394A1
Authority
TN
Tunisia
Prior art keywords
une
sulfate
contenant
formation
acide phosphorique
Prior art date
Application number
TNP2006000394A
Other languages
French (fr)
Inventor
Serge Kurowski
Original Assignee
Prayon Tech
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 Prayon Tech filed Critical Prayon Tech
Publication of TNSN06394A1 publication Critical patent/TNSN06394A1/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
    • C01B25/222—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
    • C01B25/226—Hemihydrate process

Landscapes

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

Abstract

Procédé de production d'acide phosphorique, comprenant une formation d'une première bouillie aqueuse contenant du sulfate de calcium dihydrate et de l'acide phosphorique, une formation d'une deuxième bouillie aqueuse contenant du sulfate de calcium hémihydrate et de l'acide phosphorique et une filtration d'un mélange de ces deux bouillies au travers d'un filtre avec formation d'un gâteau de filtration contenant simultanément du sulfate de calcium dihydrate et hémihydrate et séparation d'une phase aqueuse contenant l'acide phosphorique.
TNP2006000394A 2004-06-01 2006-11-30 PROCESS FOR PRODUCING PHOSPHORIC ACID TNSN06394A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2004/0273A BE1016065A3 (en) 2004-06-01 2004-06-01 Process phosphoric acid production.
PCT/EP2005/052495 WO2005118470A1 (en) 2004-06-01 2005-06-01 Method for producing phosphoric acid

Publications (1)

Publication Number Publication Date
TNSN06394A1 true TNSN06394A1 (en) 2008-02-22

Family

ID=34973657

Family Applications (1)

Application Number Title Priority Date Filing Date
TNP2006000394A TNSN06394A1 (en) 2004-06-01 2006-11-30 PROCESS FOR PRODUCING PHOSPHORIC ACID

Country Status (8)

Country Link
EP (1) EP1771378A1 (en)
CN (1) CN1960941B (en)
BE (1) BE1016065A3 (en)
BR (1) BRPI0510525A (en)
EA (1) EA010973B1 (en)
MA (1) MA28704B1 (en)
TN (1) TNSN06394A1 (en)
WO (1) WO2005118470A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019055A3 (en) 2009-12-02 2012-02-07 Prayon Technologies PROCESS FOR PRODUCING PHOSPHORIC ACID
EA025514B1 (en) 2011-06-01 2016-12-30 Прэйон Текнолоджис Dihydrate-hemihydrate process for producing phosphoric acid
RU2599525C1 (en) * 2015-04-23 2016-10-10 Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам имени профессора Я.В. Самойлова" (ОАО "НИУИФ") Method of producing wet-process phosphoric acid
BE1025894B1 (en) 2017-08-11 2020-02-21 Prayon Tech ACID ATTACK PROCESS OF A PHOSPHATE SOURCE
CN107840316B (en) * 2017-10-30 2019-07-19 安徽六国化工股份有限公司 A kind of two step method dihydrate wet phosphoric acid production technology
CN107840317B (en) * 2017-10-30 2019-12-03 安徽六国化工股份有限公司 A kind of-half water wet method phosphoric acid manufacture process of two water of one-step method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20994E (en) 1928-06-05 1939-01-31 Method of treating raw phosphate
NL29556C (en) 1930-02-13
NL137436C (en) * 1960-10-26
BE633677A (en) * 1962-06-29
IL23004A (en) 1964-02-27 1969-03-27 Fosindus Co Process for the purification of residual gypsum produced in the manufacture of phosphoric acid by the reaction of sulphuric acid with natural phosphates
LU49007A1 (en) 1965-07-07 1967-01-09
US3632304A (en) * 1968-09-03 1972-01-04 Universal Oil Prod Co Catalytic oxidation of waste gas streams with fluidizable subdivided particles
US3632307A (en) * 1969-04-09 1972-01-04 Albatros Super Fosfaatfabrieke Process for the preparation of phosphoric acid and gypsum from phosphate rock
US3715191A (en) * 1970-07-13 1973-02-06 Whiting Corp Apparatus for making wet process phosphoric acid
US3911079A (en) * 1971-03-23 1975-10-07 Rhone Progil Method of producing phosphoric acid and calcium sulphate
US4220630A (en) 1978-01-04 1980-09-02 Occidental Petroleum Corporation Hemihydrate type process for phosphoric acid manufacture using additive to improve filterability
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
DE3583209D1 (en) 1984-11-05 1991-07-18 Prayon Dev Sa CONTINUOUS PROCESS FOR PRODUCING PHOSPHORIC ACID AND CALCIUM SULFATE.
US5084261A (en) * 1989-06-22 1992-01-28 Occidental Chemical Corporation Recovery and utilization of gypstack leachate in hemihydrate phosphoric acid process

Also Published As

Publication number Publication date
BE1016065A3 (en) 2006-02-07
BRPI0510525A (en) 2007-10-30
CN1960941A (en) 2007-05-09
WO2005118470A1 (en) 2005-12-15
EA010973B1 (en) 2008-12-30
EA200602217A1 (en) 2007-04-27
EP1771378A1 (en) 2007-04-11
MA28704B1 (en) 2007-06-01
CN1960941B (en) 2010-09-08

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