AU1431670A - Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum - Google Patents

Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum

Info

Publication number
AU1431670A
AU1431670A AU14316/70A AU1431670A AU1431670A AU 1431670 A AU1431670 A AU 1431670A AU 14316/70 A AU14316/70 A AU 14316/70A AU 1431670 A AU1431670 A AU 1431670A AU 1431670 A AU1431670 A AU 1431670A
Authority
AU
Australia
Prior art keywords
gypsum
contaiminated
types
phosphoric acid
calcium sulphate
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
AU14316/70A
Inventor
EGON CHERDRON FRITZ FASSIE DR MANFRED HAERTER and DR HERMAN RUTER DR
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.)
Gebr GIULINI GMBH
Original Assignee
Gebr GIULINI GMBH
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 Gebr GIULINI GMBH filed Critical Gebr GIULINI GMBH
Priority to AU14316/70A priority Critical patent/AU1431670A/en
Publication of AU1431670A publication Critical patent/AU1431670A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00Calcium sulfate cements
    • C04B11/02Methods and apparatus for dehydrating gypsum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
AU14316/70A 1970-04-24 1970-04-24 Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum Expired AU1431670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14316/70A AU1431670A (en) 1970-04-24 1970-04-24 Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU14316/70A AU1431670A (en) 1970-04-24 1970-04-24 Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum

Publications (1)

Publication Number Publication Date
AU1431670A true AU1431670A (en) 1971-10-28

Family

ID=3704480

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14316/70A Expired AU1431670A (en) 1970-04-24 1970-04-24 Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum

Country Status (1)

Country Link
AU (1) AU1431670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876152A3 (en) * 2006-07-03 2008-10-01 Tripoliven C.A. Process for physico-chemical adaptation of chemical gypsum or phosphogypsum for use in cement formulations and other construction materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876152A3 (en) * 2006-07-03 2008-10-01 Tripoliven C.A. Process for physico-chemical adaptation of chemical gypsum or phosphogypsum for use in cement formulations and other construction materials

Similar Documents

Publication Publication Date Title
GB1549029A (en) Process for the conversion of gypsum into calcium sulphate hemihydrate
NL7504742A (en) PROCESS FOR PREPARING CALCIUM SULPHATE (ALPHA) HEMIHYDRATE.
ES418869A1 (en) Method for the treatment of phosphogypsum
CA718837A (en) Wet-process phosphoric acid manufacture by the semihydrate-dihydrate calcium sulphate method
DK130955B (en) Process for the preparation of phosphoric acid and calcium sulphate hemihydrate by wet means.
IL35950A0 (en) Process for the manufacture of anhydrous calcium sulphate ii from synthetic gypsum,a plaster or a cement containing the same
AR198029A1 (en) METHOD OF PRODUCING ADDITIVES FOR CALCIUM SULPHATE PLASTER
AU1431670A (en) Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum
AU475152B2 (en) Continuous process for preparing gypsum from waste sulfuric acid
ZA742881B (en) Process for the production of calcium fluoride from fluosilicates and byproduct gypsum
ZA701471B (en) Process for the production of defluorinated cement clinkers from phosphoric acid-by-product-gypsum
ES369090A2 (en) A continuous procedure for the production of phosphoric acid. (Machine-translation by Google Translate, not legally binding)
CA915883A (en) Method for manufacturing phosphoric acid and hemihydrate calcium sulphate by the wet process
NL7505135A (en) PROCESS FOR PREPARING STABILIZED, BONDABLE CALCIUM SULPHATE BY CONVERSION OF CALCIUM COMPOUNDS WITH SULFURIC ACID.
ES451301A1 (en) Setting retarder
CA956981A (en) Process for producing plaster from byproduct gypsum
AU478108B2 (en) Process for the reduction of calcium sulphate scale formation during the production of phosphoric acid
DK134899B (en) Process for the preparation of calcium phosphate-containing phosphoric acid.
AU6203673A (en) Process for the reduction of calcium sulphate scale formation during the production of phosphoric acid
JPS5265796A (en) Method for production of anhydrous gypsum of type ii
YU39519B (en) Process for the manufacture of phosphoric acid and calcium sulfate dihydrate
AU784566A (en) Method for manufacturing phosphoric acid and hemihydrate calcium sulphate bythe wet process
ZA744650B (en) Process for the defluorination of phosphoric acid-waste gypsum
AU426776B2 (en) Continuous process for the production of calcium sulphate alpha-hemihydrate from gypsum
AU289004B2 (en) Continuous process forthe production of calcium sulphate hemi-hydrate from gypsum