EA200602217A1 - Способ получения фосфорной кислоты - Google Patents

Способ получения фосфорной кислоты

Info

Publication number
EA200602217A1
EA200602217A1 EA200602217A EA200602217A EA200602217A1 EA 200602217 A1 EA200602217 A1 EA 200602217A1 EA 200602217 A EA200602217 A EA 200602217A EA 200602217 A EA200602217 A EA 200602217A EA 200602217 A1 EA200602217 A1 EA 200602217A1
Authority
EA
Eurasian Patent Office
Prior art keywords
phosphoric acid
sulfate
calcium
preparation
preparing
Prior art date
Application number
EA200602217A
Other languages
English (en)
Other versions
EA010973B1 (ru
Inventor
Серж Куровски
Original Assignee
Прэйон Текнолоджиз
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 Прэйон Текнолоджиз filed Critical Прэйон Текнолоджиз
Publication of EA200602217A1 publication Critical patent/EA200602217A1/ru
Publication of EA010973B1 publication Critical patent/EA010973B1/ru

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)
  • Luminescent Compositions (AREA)
  • Fertilizers (AREA)
  • Paper (AREA)

Abstract

Способ получения фосфорной кислоты, включающий в себя приготовление первой водной пульпы с содержанием сульфата дигидрата кальция и фосфорной кислоты, приготовление второй водной пульпы с содержанием сульфата полугидрата кальция и фосфорной кислоты, фильтрацию смеси этих обеих пульп через фильтр с образованием кека, содержащего одновременно сульфат дигидрата кальция и сульфат полугидрата кальция, и отделение водной фазы, содержащей фосфорную кислоту.
EA200602217A 2004-06-01 2005-06-01 Способ получения фосфорной кислоты EA010973B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2004/0273A BE1016065A3 (fr) 2004-06-01 2004-06-01 Procede de production d'acide phosphorique.
PCT/EP2005/052495 WO2005118470A1 (fr) 2004-06-01 2005-06-01 Procede de production d'acide phosphorique

Publications (2)

Publication Number Publication Date
EA200602217A1 true EA200602217A1 (ru) 2007-04-27
EA010973B1 EA010973B1 (ru) 2008-12-30

Family

ID=34973657

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200602217A EA010973B1 (ru) 2004-06-01 2005-06-01 Способ получения фосфорной кислоты

Country Status (8)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019055A3 (fr) 2009-12-02 2012-02-07 Prayon Technologies Procede de production d'acide phosphorique.
WO2012163425A1 (fr) 2011-06-01 2012-12-06 Prayon Technologies Procede de production d'acide phosphorique du type dihydrate/hemihydrate
RU2599525C1 (ru) * 2015-04-23 2016-10-10 Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам имени профессора Я.В. Самойлова" (ОАО "НИУИФ") Способ получения экстракционной фосфорной кислоты
AR112732A1 (es) 2017-08-11 2019-12-04 Prayon Tech Procedimiento de ataqué ácido de una fuente de fosfato
CN107840316B (zh) * 2017-10-30 2019-07-19 安徽六国化工股份有限公司 一种二步法二水湿法磷酸生产工艺
CN107840317B (zh) * 2017-10-30 2019-12-03 安徽六国化工股份有限公司 一种一步法二水-半水湿法磷酸生产工艺

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 (ru) 1930-02-13
NL137436C (ru) * 1960-10-26
GB1052986A (ru) * 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 (ru) * 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 (fr) * 1979-10-17 1984-08-15 Societe Industrielle D'acide Phosphorique Et D'engrais S.I.A.P.E. Dispositif pour améliorer la production d'acide phosphorique par voie humide
EP0181029B1 (fr) 1984-11-05 1991-06-12 Prayon Développement Société anonyme Procédé continu de préparation d'acide phosphorique et de sulfate de calcium
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
CN1960941B (zh) 2010-09-08
BRPI0510525A (pt) 2007-10-30
CN1960941A (zh) 2007-05-09
MA28704B1 (fr) 2007-06-01
WO2005118470A1 (fr) 2005-12-15
TNSN06394A1 (fr) 2008-02-22
BE1016065A3 (fr) 2006-02-07
EP1771378A1 (fr) 2007-04-11
EA010973B1 (ru) 2008-12-30

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ KG MD TJ TM

MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): BY KZ RU