ES8800114A1 - Procedimiento para la preparacion de acido fosforico de procedimiento en humedo - Google Patents

Procedimiento para la preparacion de acido fosforico de procedimiento en humedo

Info

Publication number
ES8800114A1
ES8800114A1 ES551985A ES551985A ES8800114A1 ES 8800114 A1 ES8800114 A1 ES 8800114A1 ES 551985 A ES551985 A ES 551985A ES 551985 A ES551985 A ES 551985A ES 8800114 A1 ES8800114 A1 ES 8800114A1
Authority
ES
Spain
Prior art keywords
preparation
phosphoric acids
wet
processed suspension
formation
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES551985A
Other languages
English (en)
Other versions
ES551985A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6262637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8800114(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of ES8800114A1 publication Critical patent/ES8800114A1/es
Publication of ES551985A0 publication Critical patent/ES551985A0/es
Expired legal-status Critical Current

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
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • 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)
  • Removal Of Specific Substances (AREA)
  • Silicon Compounds (AREA)

Abstract

METODO PARA EVITAR LA CRISTALIZACION DE FLUOSILICATO SODICO EN ACIDO FOSFORICO VIA HUMEDA DURANTE LA DISGREGACION DEL MINERAL DEL FOSFATO. CONSISTE EN AÑADIR AL MINERAL DE FOSFATO O A LA PAPILLA RESULTANTE DE LA DISGREGACION DEL MINERAL CON UN ACIDO FUERTE, UN COMPUESTO DE ALUMINIO CONSTITUIDO POR HIDROXIDO DE ALUMINIO, FOSFATO DE ALUMINIO, ARCILLA O UN ALUMINATO, EN CANTIDAD SUFICIENTE PARA QUE LA CONCENTRACION DE ALUMINIO EN LA PAPILLA RESULTANTE SEA DE 0,3 A 1 POR CIENTO DEL P2O5. TIENE APLICACION PARA EVITAR INCRUSTACIONES DE FLUOSILICATO EN LAS SUPERFICIES DE REACTORES, BOMBAS, ETC.
ES551985A 1985-02-15 1986-02-14 Procedimiento para la preparacion de acido fosforico de procedimiento en humedo Expired ES8800114A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853505247 DE3505247A1 (de) 1985-02-15 1985-02-15 Verfahren zur herstellung von nassverfahrensphosphorsaeure

Publications (2)

Publication Number Publication Date
ES8800114A1 true ES8800114A1 (es) 1987-11-16
ES551985A0 ES551985A0 (es) 1987-11-16

Family

ID=6262637

Family Applications (1)

Application Number Title Priority Date Filing Date
ES551985A Expired ES8800114A1 (es) 1985-02-15 1986-02-14 Procedimiento para la preparacion de acido fosforico de procedimiento en humedo

Country Status (5)

Country Link
US (1) US4683127A (es)
EP (1) EP0191325B1 (es)
DE (2) DE3505247A1 (es)
ES (1) ES8800114A1 (es)
ZA (1) ZA861099B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640518Y2 (ja) * 1988-01-26 1994-10-26 池田物産株式会社 リヤシートバックのロック装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1520273A (en) 1974-07-06 1978-08-02 Fisons Ltd Phosphoric acid and gypsum from phosphatic material
US4132765A (en) 1975-06-26 1979-01-02 E. I. Du Pont De Nemours And Company Recovery of fluoride values
FR2507170A2 (fr) * 1976-02-26 1982-12-10 Ind Chimiques Maghrebines Procede de clarification et de defluoration simultanees de l'acide phosphorique et acide obtenu par ledit procede
DE3202659A1 (de) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE3328499A1 (de) * 1983-08-06 1985-02-14 Hoechst Ag, 6230 Frankfurt Verfahren zur verminderung des fluorgehaltes einer nassverfahrensphosphorsaeure

Also Published As

Publication number Publication date
EP0191325B1 (de) 1991-11-13
DE3682407D1 (de) 1991-12-19
US4683127A (en) 1987-07-28
EP0191325A2 (de) 1986-08-20
DE3505247A1 (de) 1986-08-21
ZA861099B (en) 1986-10-29
EP0191325A3 (en) 1989-01-11
ES551985A0 (es) 1987-11-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303