DK137988A - Fremgangsmaade og apparat til kalcinering af gips - Google Patents

Fremgangsmaade og apparat til kalcinering af gips

Info

Publication number
DK137988A
DK137988A DK137988A DK137988A DK137988A DK 137988 A DK137988 A DK 137988A DK 137988 A DK137988 A DK 137988A DK 137988 A DK137988 A DK 137988A DK 137988 A DK137988 A DK 137988A
Authority
DK
Denmark
Prior art keywords
gyps
calcinating
procedure
calcinating gyps
Prior art date
Application number
DK137988A
Other languages
English (en)
Other versions
DK137988D0 (da
Inventor
Otto Louis Dozsa
Donald Richard Janninck
Richard Fletcher Stone
Larbi Bounini
Original Assignee
United States Gypsum Co
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 United States Gypsum Co filed Critical United States Gypsum Co
Publication of DK137988D0 publication Critical patent/DK137988D0/da
Publication of DK137988A publication Critical patent/DK137988A/da

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
    • C04B11/0281—Kettles; Marmites; Autoclaves
    • 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
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/004—Calcining using hot gas streams in which the material is moved

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
DK137988A 1986-08-14 1988-03-14 Fremgangsmaade og apparat til kalcinering af gips DK137988A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/896,373 US4744963A (en) 1986-08-14 1986-08-14 Highly efficient calcination of gypsum to hemihydrate
PCT/US1987/001968 WO1988001257A1 (en) 1986-08-14 1987-08-11 Highly efficient calcination of gypsum to hemihydrate

Publications (2)

Publication Number Publication Date
DK137988D0 DK137988D0 (da) 1988-03-14
DK137988A true DK137988A (da) 1988-03-14

Family

ID=25406090

Family Applications (1)

Application Number Title Priority Date Filing Date
DK137988A DK137988A (da) 1986-08-14 1988-03-14 Fremgangsmaade og apparat til kalcinering af gips

Country Status (11)

Country Link
US (1) US4744963A (da)
EP (1) EP0277208B1 (da)
JP (1) JPH01500991A (da)
AU (1) AU602720B2 (da)
CA (1) CA1315956C (da)
DE (1) DE3776549D1 (da)
DK (1) DK137988A (da)
FI (1) FI880837A (da)
MX (1) MX160533A (da)
NZ (1) NZ221415A (da)
WO (1) WO1988001257A1 (da)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660303B1 (fr) * 1990-03-27 1992-07-17 Electricite De France Procede et dispositif de formation d'oxyde de calcium.
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
US20050083173A1 (en) * 2003-10-20 2005-04-21 Konupek Ingrid H. Locking remote control
US7175426B2 (en) * 2004-02-27 2007-02-13 United States Gypsum Company High efficiency refractoryless kettle
US7434980B2 (en) * 2004-02-27 2008-10-14 United States Gypsum Company Swinging agitator for a gypsum calcining apparatus and the like
PL1971813T3 (pl) * 2006-01-13 2017-01-31 Certainteed Gypsum, Inc. System i sposób wytwarzania gipsu typu alfa z wykorzystaniem ciepła odzyskanego
US8388926B2 (en) 2006-01-13 2013-03-05 Certainteed Gypsum, Inc. System and method for the production of gypsum using heat recovery
US20090208392A1 (en) * 2008-02-14 2009-08-20 Georgia-Pacific Gypsum, Llc Process for producing alpha-hemihydrate gypsum
US7651564B2 (en) 2008-04-10 2010-01-26 Georgia-Pacific Gypsum Llc Gypsum-based floor underlayment
US11046611B2 (en) * 2018-04-10 2021-06-29 Tru-Flow Systems, Inc. Calcining kettle, calcining system, and method
CN111875272A (zh) * 2020-08-18 2020-11-03 扬州工业职业技术学院 一种脱硫石膏煅烧装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446863A (en) * 1921-05-26 1923-02-27 Sheldon E Townley Gypsum calcining apparatus
US1857799A (en) * 1925-07-01 1932-05-10 Ig Farbenindustrie Ag Production of water gas
US2934328A (en) * 1957-04-18 1960-04-26 Zvejnieks Andrejs Method and an apparatus for calcining of gypsum
FR1228722A (fr) * 1958-06-26 1960-09-02 Pfeiffer Barbarossawerke A G G Dispositif pour la déshydratation du gypse brut
US2968683A (en) * 1960-03-25 1961-01-17 Shawinigan Chem Ltd Process for heating beds of solid particles spouted with gas
GB941331A (en) * 1961-03-07 1963-11-06 Ernest Bertram Banfield Improvements in drying and/or calcining apparatus
US3236509A (en) * 1961-11-13 1966-02-22 British Plaster Board Holdings Process and apparatus for continuous calcining of powdered gypsum rock
US3312524A (en) * 1962-04-19 1967-04-04 Dominion Tar & Chemical Co Production of calcium sulphate hemihydrate
US3314767A (en) * 1963-06-03 1967-04-18 Exxon Research Engineering Co Electro-fluid reactor for high temperature gasification process
US3307915A (en) * 1964-01-22 1967-03-07 Georgia Pacific Corp Apparatus for continuous calcination of gypsum
US3479143A (en) * 1964-07-13 1969-11-18 Girdler Corp Means for conducting endothermic catalytic reactions,including electrical heating means
DE1940007B2 (de) * 1969-08-06 1973-06-07 Rheinstahl Ag, 4300 Essen Verfahren zum brennen von gips in einem heizgasstrom
US4176157A (en) * 1974-11-14 1979-11-27 Bpb Industries Limited Calcining calcium sulphate dihydrate
US4113836A (en) * 1976-10-29 1978-09-12 National Gypsum Company Continuous gypsum calcination process and kettle therefor
ZA793953B (en) * 1978-08-08 1980-08-27 Coal Industry Patents Ltd Heat treatment of material
EP0044005B1 (de) * 1980-07-14 1984-09-26 HIS Handels- und Industriebedarf GmbH Herstellung von Gipshalbhydrat mit Wärmemüll, wässriger H2SO4 und schwefelsauren Salzen
US4594967A (en) * 1985-03-11 1986-06-17 Foster Wheeler Energy Corporation Circulating solids fluidized bed reactor and method of operating same
EP0260377A3 (en) * 1986-09-16 1989-03-29 Westinghouse Electric Corporation Fluidized bed calciner apparatus

Also Published As

Publication number Publication date
FI880837A0 (fi) 1988-02-23
NZ221415A (en) 1989-11-28
DK137988D0 (da) 1988-03-14
DE3776549D1 (de) 1992-03-12
US4744963A (en) 1988-05-17
MX160533A (es) 1990-03-19
AU7850387A (en) 1988-03-08
CA1315956C (en) 1993-04-13
EP0277208A4 (en) 1988-11-28
EP0277208B1 (en) 1992-01-29
EP0277208A1 (en) 1988-08-10
WO1988001257A1 (en) 1988-02-25
AU602720B2 (en) 1990-10-25
JPH01500991A (ja) 1989-04-06
FI880837A (fi) 1988-02-23

Similar Documents

Publication Publication Date Title
DK289588D0 (da) Fremgangsmaade og apparat til fremstilling af etiketter
DK630387D0 (da) Fremgangsmaade og apparat til fremstilling af fyldstofholdigt papir
DK465589A (da) Fremgangsmaade og apparat til afgivelse af etiketter
DK270487A (da) Fremgangsmaade og apparat til fremstilling af mandelmasse
DK378388D0 (da) Fremgangsmaade og apparat til fremstilling af pyramidestubformede daaseemner
DK679687A (da) Fremgangsmaade og apparat til bestemmelse af sulfatreducerende bakterier
DK222487A (da) Fremgangsmaade og apparat til saetning af en blindnitte
DK137988A (da) Fremgangsmaade og apparat til kalcinering af gips
DK157442C (da) Fremgangsmaade og apparat til kalcinering af fosfat
DK364583D0 (da) Apparat til harskaering og harpleje
DK149385D0 (da) Apparat og fremgangsmaade til fremstilling af ispinde
DK417586A (da) Apparat og fremgangsmaade til udtagning af proever
DK162323C (da) Fremgangsmaade og apparat til fremstilling af en pakning
DK86886D0 (da) Apparat og fremgangsmaade til dental profylakse
DK419088D0 (da) Fremgangsmaade og apparat til fremstilling af vekselspaending
DK356486A (da) Apparat og fremgangsmaade til vaadbehandling af tekstiler
DK600689D0 (da) Fremgangsmaade og apparat til udtagning af proever
DK447289A (da) Fremgangsmaade og apparat til fremfoering af emner
DK496981A (da) Fremgangsmaade samt apparat til calcinering af gips
DK276686D0 (da) Fremgangsmaade og apparat til behandling af sortlud
DK421884A (da) Fremgangsmaade og apparat til formstoebning af opskummelige formstoffer
DK318283A (da) Inddampningsfremgangsmaade og apparat
DK48681A (da) Fremgangsmaade og apparat til belysning med lav spredt reflektion
NO874900D0 (no) Apparat og fremgangsmaate til utfoerelse av en trakomoperasjon.
DK100787D0 (da) Fremgangsmaade og apparat til indkodning af billeder

Legal Events

Date Code Title Description
AHB Application shelved due to non-payment