NL285104A - - Google Patents

Info

Publication number
NL285104A
NL285104A NL285104DA NL285104A NL 285104 A NL285104 A NL 285104A NL 285104D A NL285104D A NL 285104DA NL 285104 A NL285104 A NL 285104A
Authority
NL
Netherlands
Application number
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.)
Publication of NL285104A publication Critical patent/NL285104A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00Compounds of calcium, strontium, or barium
    • C01F11/46Sulfates
    • C01F11/466Conversion of one form of calcium sulfate to another
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001Calcining
    • B01J6/004Calcining using hot gas streams in which the material is moved
    • 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
    • C04B11/028Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • 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
    • C04B11/028Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • C04B11/0281Kettles; Marmites; Autoclaves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Baking, Grill, Roasting (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
NL285104D 1961-11-13 NL285104A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15296861A 1961-11-13 1961-11-13

Publications (1)

Publication Number Publication Date
NL285104A true NL285104A (en:Method)

Family

ID=22545214

Family Applications (2)

Application Number Title Priority Date Filing Date
NL285104D NL285104A (en:Method) 1961-11-13
NL285104A NL141481B (nl) 1961-11-13 1962-11-05 Werkwijze voor het calcineren van gips.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL285104A NL141481B (nl) 1961-11-13 1962-11-05 Werkwijze voor het calcineren van gips.

Country Status (10)

Country Link
BE (1) BE624555A (en:Method)
CH (1) CH394926A (en:Method)
DE (1) DE1258321B (en:Method)
DK (1) DK115723B (en:Method)
ES (1) ES282399A1 (en:Method)
FI (1) FI47343C (en:Method)
GB (1) GB1018464A (en:Method)
LU (1) LU42643A1 (en:Method)
NL (2) NL141481B (en:Method)
SE (1) SE323614B (en:Method)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488665A (en) * 1973-11-27 1977-10-12 Bpb Industries Ltd Calcining calcium sulphate dihydrate
US4161390A (en) * 1977-06-16 1979-07-17 United States Gypsum Company Calcining kettle having multi-pass heating system
GB2001157B (en) * 1977-07-15 1982-07-07 Coal Ind Improvements in or relating to fluidised beds
US4188186A (en) * 1978-06-22 1980-02-12 Combustion Engineering, Inc. Automatic calcining kettle
ZA793953B (en) * 1978-08-08 1980-08-27 Coal Industry Patents Ltd Heat treatment of material
NL185896C (nl) * 1979-01-08 1990-08-16 Bpb Industries Ltd Inrichting voor het met warmte behandelen van een korrelvormig materiaal.
US4533528A (en) * 1983-07-15 1985-08-06 United States Gypsum Company Process for continuously calcining gypsum to low dispersed consistency stucco
US4626199A (en) * 1985-04-25 1986-12-02 United States Gypsum Company Submerged combustion calcination
GB8625964D0 (en) * 1986-10-30 1986-12-03 Bpb Industries Plc Calcination apparatus
US5743954A (en) * 1995-02-02 1998-04-28 United States Gypsum Company Method for continuous refractoryless calcining of gypsum
US5743728A (en) * 1995-08-15 1998-04-28 Usg Corporation Method and system for multi-stage calcining of gypsum to produce an anhydrite product
US7434980B2 (en) 2004-02-27 2008-10-14 United States Gypsum Company Swinging agitator for a gypsum calcining apparatus and the like
US7175426B2 (en) 2004-02-27 2007-02-13 United States Gypsum Company High efficiency refractoryless kettle
AU2009215632B2 (en) * 2008-02-19 2013-11-28 United States Gypsum Company Method and apparatus for pressurized calcination of gypsum

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485317A (en) * 1943-01-29 1949-10-18 Standard Oil Dev Co Method of manufacturing plaster of paris
GB610439A (en) * 1946-04-05 1948-10-15 Reginald George Franklin Improvements in and relating to the dehydration of particulate calcium sulphate
FR928217A (fr) * 1946-05-17 1947-11-21 Système et procédé de séchage ou de traitement thermique
GB855131A (en) * 1955-12-01 1960-11-30 Smidth & Co As F L Improvements relating to apparatus and installations for the cooling of cement or other material which can be fluidised

Also Published As

Publication number Publication date
CH394926A (de) 1965-06-30
FI47343B (en:Method) 1973-07-31
SE323614B (en:Method) 1970-05-04
LU42643A1 (en:Method) 1963-01-05
ES282399A1 (es) 1963-02-01
NL141481B (nl) 1974-03-15
DK115723B (da) 1969-11-03
BE624555A (en:Method) 1963-03-01
GB1018464A (en) 1966-01-26
DE1258321B (de) 1968-01-04
FI47343C (fi) 1973-11-12

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