AU423448B2 - Production of alpha plaster - Google Patents

Production of alpha plaster

Info

Publication number
AU423448B2
AU423448B2 AU35674/68A AU3567468A AU423448B2 AU 423448 B2 AU423448 B2 AU 423448B2 AU 35674/68 A AU35674/68 A AU 35674/68A AU 3567468 A AU3567468 A AU 3567468A AU 423448 B2 AU423448 B2 AU 423448B2
Authority
AU
Australia
Prior art keywords
production
alpha plaster
plaster
alpha
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
AU35674/68A
Other versions
AU3567468A (en
Inventor
Knox Worner Howard
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.)
Conzinc Riotinto of Australia Ltd
Original Assignee
Conzinc Riotinto of Australia Ltd
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 Conzinc Riotinto of Australia Ltd filed Critical Conzinc Riotinto of Australia Ltd
Priority to AU35674/68A priority Critical patent/AU423448B2/en
Priority to GB1243269A priority patent/GB1224149A/en
Publication of AU3567468A publication Critical patent/AU3567468A/en
Application granted granted Critical
Publication of AU423448B2 publication Critical patent/AU423448B2/en
Expired legal-status Critical Current

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
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/187—Details relating to the spatial orientation of the reactor inclined at an angle to the horizontal or to the vertical plane

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
AU35674/68A 1968-03-28 1968-03-28 Production of alpha plaster Expired AU423448B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU35674/68A AU423448B2 (en) 1968-03-28 1968-03-28 Production of alpha plaster
GB1243269A GB1224149A (en) 1968-03-28 1969-03-10 Production of alpha plaster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU35674/68A AU423448B2 (en) 1968-03-28 1968-03-28 Production of alpha plaster

Publications (2)

Publication Number Publication Date
AU3567468A AU3567468A (en) 1970-09-10
AU423448B2 true AU423448B2 (en) 1972-04-21

Family

ID=3722979

Family Applications (1)

Application Number Title Priority Date Filing Date
AU35674/68A Expired AU423448B2 (en) 1968-03-28 1968-03-28 Production of alpha plaster

Country Status (2)

Country Link
AU (1) AU423448B2 (en)
GB (1) GB1224149A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139384A1 (en) * 1981-10-03 1983-04-21 Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter METHOD AND DEVICE FOR THE PRESSURE-FREE PRODUCTION OF (ALPHA) CALCIUM SULFATE HALBHYDRATE
DE19880619D2 (en) * 1997-05-09 2000-11-16 Gebhard Georg Method and device for the production of storage mineral components for the immobilization of pollutants and for the production of components, in particular of building boards and of mixtures
KR20020082231A (en) * 2000-03-03 2002-10-30 스미쓰 앤드 네퓨, 인크. Shaped Particle and Composition for Bone Deficiency and Method of Making the Particle
DE102007024188B3 (en) 2007-05-24 2008-04-10 Grenzebach Bsh Gmbh Production of alpha calcium hemihydrate from calcium dihydrate comprises charging an autoclave with calcium dihydrate, indirectly heating the autoclave, adding water in a controlled manner and mixing and further processing
DE102018132084B4 (en) * 2018-12-13 2020-10-15 ARCUS Greencycling Technologies GmbH Screw conveyor; Method for removing or preventing deposits on an inner wall of a tube of a screw conveyor
WO2021254550A1 (en) 2020-06-16 2021-12-23 ARCUS Greencycling Technologies GmbH Screw conveyor, and method for eliminating or preventing deposits on an inner wall of a tube of a screw conveyor

Also Published As

Publication number Publication date
AU3567468A (en) 1970-09-10
GB1224149A (en) 1971-03-03

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