JPS5751108A - Manufacture of phosphoric acid and calcium sulfate anhydrite, and anhydrite thereby - Google Patents

Manufacture of phosphoric acid and calcium sulfate anhydrite, and anhydrite thereby

Info

Publication number
JPS5751108A
JPS5751108A JP56110643A JP11064381A JPS5751108A JP S5751108 A JPS5751108 A JP S5751108A JP 56110643 A JP56110643 A JP 56110643A JP 11064381 A JP11064381 A JP 11064381A JP S5751108 A JPS5751108 A JP S5751108A
Authority
JP
Japan
Prior art keywords
sub
anhydrite
wash
gypsum
phosphoric acid
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.)
Pending
Application number
JP56110643A
Other languages
English (en)
Inventor
Antoniusu Maria Ueta Koonerisu
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 BV filed Critical Stamicarbon BV
Publication of JPS5751108A publication Critical patent/JPS5751108A/ja
Pending 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
    • C01B25/222—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)
  • Removal Of Specific Substances (AREA)
  • Catalysts (AREA)
  • Materials For Medical Uses (AREA)
JP56110643A 1980-07-15 1981-07-15 Manufacture of phosphoric acid and calcium sulfate anhydrite, and anhydrite thereby Pending JPS5751108A (en)

Applications Claiming Priority (1)

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.

Publications (1)

Publication Number Publication Date
JPS5751108A true JPS5751108A (en) 1982-03-25

Family

ID=19835625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56110643A Pending JPS5751108A (en) 1980-07-15 1981-07-15 Manufacture of phosphoric acid and calcium sulfate anhydrite, and anhydrite thereby

Country Status (8)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319384A (ja) * 1986-07-09 1988-01-27 レ　アントルプリ−ズ　トリツトン　リミテ ロツキングシ−ル

Families Citing this family (8)

* 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
SE8302590L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (i)
SE8302591L (sv) * 1983-05-06 1984-11-07 Boliden Ab Forfarande for framstellning av fibergips (ii)
US7118718B2 (en) * 2000-10-05 2006-10-10 Pcs Nitrogen, Inc. Gypsum decontamination process
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.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319384A (ja) * 1986-07-09 1988-01-27 レ　アントルプリ−ズ　トリツトン　リミテ ロツキングシ−ル

Also Published As

Publication number Publication date
ES503945A0 (es) 1982-08-16
EP0044120A3 (en) 1982-01-27
EP0044120A2 (en) 1982-01-20
NL8004058A (nl) 1982-02-16
IN153973B (ja) 1984-09-08
DE3161703D1 (en) 1984-01-26
US4362705A (en) 1982-12-07
EP0044120B1 (en) 1983-12-21
ES8206374A1 (es) 1982-08-16
ATE5646T1 (de) 1984-01-15

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