IL26076A - Method for the manufacture of phosphoric acid and calcium sulphate hemihydrate - Google Patents

Method for the manufacture of phosphoric acid and calcium sulphate hemihydrate

Info

Publication number
IL26076A
IL26076A IL26076A IL2607666A IL26076A IL 26076 A IL26076 A IL 26076A IL 26076 A IL26076 A IL 26076A IL 2607666 A IL2607666 A IL 2607666A IL 26076 A IL26076 A IL 26076A
Authority
IL
Israel
Prior art keywords
acid
gypsum
phosphoric acid
decomposition
mixture
Prior art date
Application number
IL26076A
Other languages
English (en)
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
Publication of IL26076A publication Critical patent/IL26076A/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)
IL26076A 1965-07-07 1966-07-01 Method for the manufacture of phosphoric acid and calcium sulphate hemihydrate IL26076A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IL26076A true IL26076A (en) 1970-07-19

Family

ID=19724362

Family Applications (1)

Application Number Title Priority Date Filing Date
IL26076A IL26076A (en) 1965-07-07 1966-07-01 Method for the manufacture of phosphoric acid and calcium sulphate hemihydrate

Country Status (16)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104528798A (zh) * 2014-12-16 2015-04-22 中国科学院青海盐湖研究所 重结晶提纯低品位天然石膏或石膏尾矿的方法

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 (de) * 1972-07-06 1986-06-26 Ruhr-Stickstoff Ag, 4630 Bochum Verfahren zur Herstellung von reinem Calciumsulfathalbhydrat
US4059674A (en) * 1972-07-18 1977-11-22 Pullman Incorporated Method for manufacturing phosphoric acid and gypsum
SE440069B (sv) * 1982-12-22 1985-07-15 Boliden Ab Forfarande for omkristallisation av gips
DE3585627D1 (de) * 1985-12-23 1992-04-16 Prayon Rupel S A Soc Chimique Verfahren zur behandlung von alpha-calciumsulfat-halbhydrat und nach dem vefahren erhaltenes produkt.
BE1016065A3 (fr) * 2004-06-01 2006-02-07 Prayon Technologies Procede de production d'acide phosphorique.
BE1019055A3 (fr) 2009-12-02 2012-02-07 Prayon Technologies Procede de production d'acide phosphorique.
EA025514B1 (ru) 2011-06-01 2016-12-30 Прэйон Текнолоджис Способ получения фосфорной кислоты дигидратного/полугидратного типа
NO2771280T3 (no) 2011-10-24 2018-07-21
DE102016212242B4 (de) 2016-07-05 2019-02-07 Technische Universität Bergakademie Freiberg Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen
CN111807340B (zh) * 2019-04-10 2023-07-21 中石化南京工程有限公司 一种半水-二水法磷酸生产装置及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104528798A (zh) * 2014-12-16 2015-04-22 中国科学院青海盐湖研究所 重结晶提纯低品位天然石膏或石膏尾矿的方法

Also Published As

Publication number Publication date
FR1485940A (fr) 1967-06-23
FI47652B (no) 1973-10-31
NO116287B (no) 1969-03-03
SU378002A3 (no) 1973-04-17
SE336775B (no) 1971-07-19
BG20319A3 (no) 1975-11-05
BE683739A (no) 1967-01-06
AT269064B (de) 1969-03-10
GB1111078A (en) 1968-04-24
FI47652C (fi) 1974-02-11
DK130955B (da) 1975-05-12
LU49007A1 (no) 1967-01-09
DE1567821B1 (de) 1971-08-12
OA02091A (fr) 1970-05-05
DK130955C (no) 1975-12-29
NL6609093A (no) 1967-01-09
ES329179A1 (es) 1967-05-01

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