ATE5646T1 - Verfahren zur herstellung von phosphorsaeure und calciumsulfat-anhydrit. - Google Patents

Verfahren zur herstellung von phosphorsaeure und calciumsulfat-anhydrit.

Info

Publication number
ATE5646T1
ATE5646T1 AT81200814T AT81200814T ATE5646T1 AT E5646 T1 ATE5646 T1 AT E5646T1 AT 81200814 T AT81200814 T AT 81200814T AT 81200814 T AT81200814 T AT 81200814T AT E5646 T1 ATE5646 T1 AT E5646T1
Authority
AT
Austria
Prior art keywords
sub
wash
anhydrite
gypsum
phosphoric acid
Prior art date
Application number
AT81200814T
Other languages
English (en)
Inventor
Cornelis Antonius Maria Weterings
Original Assignee
Stamicarbon B.V.
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 Stamicarbon B.V. filed Critical Stamicarbon B.V.
Application granted granted Critical
Publication of ATE5646T1 publication Critical patent/ATE5646T1/de

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
    • C01B25/228—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 one form of calcium sulfate being formed and then converted to another form
    • C01B25/2285—Dihydrate-anhydrite or hemihydrate-anhydrite 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)
  • Catalysts (AREA)
  • Removal Of Specific Substances (AREA)
  • Materials For Medical Uses (AREA)
AT81200814T 1980-07-15 1981-07-14 Verfahren zur herstellung von phosphorsaeure und calciumsulfat-anhydrit. ATE5646T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8004058A NL8004058A (nl) 1980-07-15 1980-07-15 Werkwijze voor het bereiden van fosforzuur en calciumsulfaatanhydriet, alsmede fosforzuur en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
EP81200814A EP0044120B1 (de) 1980-07-15 1981-07-14 Verfahren zur Herstellung von Phosphorsäure und Calciumsulfat-Anhydrit

Publications (1)

Publication Number Publication Date
ATE5646T1 true ATE5646T1 (de) 1984-01-15

Family

ID=19835625

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81200814T ATE5646T1 (de) 1980-07-15 1981-07-14 Verfahren zur herstellung von phosphorsaeure und calciumsulfat-anhydrit.

Country Status (8)

Country Link
US (1) US4362705A (de)
EP (1) EP0044120B1 (de)
JP (1) JPS5751108A (de)
AT (1) ATE5646T1 (de)
DE (1) DE3161703D1 (de)
ES (1) ES8206374A1 (de)
IN (1) IN153973B (de)
NL (1) NL8004058A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452770A (en) * 1981-12-14 1984-06-05 United States Gypsum Company Phosphoanhydrite process
SE440069B (sv) * 1982-12-22 1985-07-15 Boliden Ab Forfarande for omkristallisation av gips
SE8302591L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (ii)
SE8302590L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (i)
JPH0747902B2 (ja) * 1986-07-09 1995-05-24 レ アントルプリ−ズ トリツトン リミテ ロツキングシ−ル
MXPA03002981A (es) * 2000-10-05 2004-12-06 Pcs Nitrogen Fertilizer L P Proceso de descontaminacion del yeso.
CN102976299B (zh) * 2012-12-17 2014-10-15 四川大学 一种生产磷酸和洁净石膏的方法
DE102020100241A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Verfahren zur Herstellung von Phosphorsäure und Klinkerprozess-geeigneter Kalziumsulfatqualität zur kommerziellen und industriellen Verwertung von Kalziumsulfat
CN111732086A (zh) * 2020-07-31 2020-10-02 天宝动物营养科技股份有限公司 一种半水-二水法制备磷酸联产高纯石膏工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531977A (en) * 1948-01-22 1950-11-28 Allied Chem & Dye Corp Process for manufacture of phosphoric acid
BE756759A (fr) * 1969-09-30 1971-03-29 Pechiney Saint Gobain Procede de fabrication d'acide phosphorique de voie humide et de sulfate de calcium de qualite amelioree
NL7812109A (nl) * 1978-12-13 1980-06-17 Stamicarbon Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.

Also Published As

Publication number Publication date
IN153973B (de) 1984-09-08
EP0044120B1 (de) 1983-12-21
US4362705A (en) 1982-12-07
NL8004058A (nl) 1982-02-16
DE3161703D1 (en) 1984-01-26
EP0044120A3 (en) 1982-01-27
ES503945A0 (es) 1982-08-16
ES8206374A1 (es) 1982-08-16
JPS5751108A (en) 1982-03-25
EP0044120A2 (de) 1982-01-20

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee