AT269064B - Process for the production of phosphoric acid and calcium sulfate hemihydrate by the wet route - Google Patents

Process for the production of phosphoric acid and calcium sulfate hemihydrate by the wet route

Info

Publication number
AT269064B
AT269064B AT639966A AT639966A AT269064B AT 269064 B AT269064 B AT 269064B AT 639966 A AT639966 A AT 639966A AT 639966 A AT639966 A AT 639966A AT 269064 B AT269064 B AT 269064B
Authority
AT
Austria
Prior art keywords
production
phosphoric acid
calcium sulfate
sulfate hemihydrate
wet route
Prior art date
Application number
AT639966A
Other languages
German (de)
Original Assignee
Prayon
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 filed Critical Prayon
Application granted granted Critical
Publication of AT269064B publication Critical patent/AT269064B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Special Chairs (AREA)
AT639966A 1965-07-07 1966-07-05 Process for the production of phosphoric acid and calcium sulfate hemihydrate by the wet route AT269064B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU49007 1965-07-07

Publications (1)

Publication Number Publication Date
AT269064B true AT269064B (en) 1969-03-10

Family

ID=19724362

Family Applications (1)

Application Number Title Priority Date Filing Date
AT639966A AT269064B (en) 1965-07-07 1966-07-05 Process for the production of phosphoric acid and calcium sulfate hemihydrate by the wet route

Country Status (16)

Country Link
AT (1) AT269064B (en)
BE (1) BE683739A (en)
BG (1) BG20319A3 (en)
DE (1) DE1567821B1 (en)
DK (1) DK130955B (en)
ES (1) ES329179A1 (en)
FI (1) FI47652C (en)
FR (1) FR1485940A (en)
GB (1) GB1111078A (en)
IL (1) IL26076A (en)
LU (1) LU49007A1 (en)
NL (1) NL6609093A (en)
NO (1) NO116287B (en)
OA (1) OA02091A (en)
SE (1) SE336775B (en)
SU (1) SU378002A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212242A1 (en) 2016-07-05 2018-01-11 Technische Universität Bergakademie Freiberg Process for the production of phosphoric acid from phosphorus-containing primary and secondary raw materials

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984525A (en) * 1967-02-01 1976-10-05 Albright & Wilson Limited Manufacture of phosphoric acid
FR2171861A1 (en) * 1972-02-11 1973-09-28 Cerphos Phosphoric acid prodn - with wet screening of digester product
DE2233189C2 (en) * 1972-07-06 1986-06-26 Ruhr-Stickstoff Ag, 4630 Bochum Process for the production of pure calcium sulfate hemihydrate
US4059674A (en) * 1972-07-18 1977-11-22 Pullman Incorporated Method for manufacturing phosphoric acid and gypsum
SE440069B (en) * 1982-12-22 1985-07-15 Boliden Ab PROCEDURE FOR RECYCLING GYPS
DE3585627D1 (en) * 1985-12-23 1992-04-16 Prayon Rupel S A Soc Chimique METHOD FOR TREATING ALPHA CALCIUM SULFATE SEMI-HYDRATE AND PRODUCT OBTAINED BY THE PROCEDURE.
BE1016065A3 (en) * 2004-06-01 2006-02-07 Prayon Technologies Process phosphoric acid production.
BE1019055A3 (en) 2009-12-02 2012-02-07 Prayon Technologies PROCESS FOR PRODUCING PHOSPHORIC ACID
KR101770814B1 (en) 2011-06-01 2017-08-23 프라이온 테크놀로지스 A method for producing phosphoric acid of the dihydrate/hemihydrate type
PL2771280T3 (en) 2011-10-24 2018-10-31 Hydrometal Sa Method for treating phosphate rock
CN104528798A (en) * 2014-12-16 2015-04-22 中国科学院青海盐湖研究所 Method for purifying low-grade natural gypsum or gypsum tailings by recrystallization
CN111807340B (en) * 2019-04-10 2023-07-21 中石化南京工程有限公司 Semi-water-dihydrate phosphoric acid production device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212242A1 (en) 2016-07-05 2018-01-11 Technische Universität Bergakademie Freiberg Process for the production of phosphoric acid from phosphorus-containing primary and secondary raw materials
DE102016212242B4 (en) 2016-07-05 2019-02-07 Technische Universität Bergakademie Freiberg Process for the production of phosphoric acid from phosphorus-containing primary and secondary raw materials

Also Published As

Publication number Publication date
DK130955C (en) 1975-12-29
ES329179A1 (en) 1967-05-01
SE336775B (en) 1971-07-19
FR1485940A (en) 1967-06-23
DK130955B (en) 1975-05-12
SU378002A3 (en) 1973-04-17
NO116287B (en) 1969-03-03
BE683739A (en) 1967-01-06
FI47652C (en) 1974-02-11
OA02091A (en) 1970-05-05
GB1111078A (en) 1968-04-24
LU49007A1 (en) 1967-01-09
IL26076A (en) 1970-07-19
NL6609093A (en) 1967-01-09
FI47652B (en) 1973-10-31
DE1567821B1 (en) 1971-08-12
BG20319A3 (en) 1975-11-05

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