CA2670738C - Calcium sulfate hemihydrate treatment process - Google Patents

Calcium sulfate hemihydrate treatment process Download PDF

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Publication number
CA2670738C
CA2670738C CA2670738A CA2670738A CA2670738C CA 2670738 C CA2670738 C CA 2670738C CA 2670738 A CA2670738 A CA 2670738A CA 2670738 A CA2670738 A CA 2670738A CA 2670738 C CA2670738 C CA 2670738C
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CA
Canada
Prior art keywords
temperature
steam
pressure
plaster
pressure chamber
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.)
Active
Application number
CA2670738A
Other languages
English (en)
French (fr)
Other versions
CA2670738A1 (en
Inventor
Robert Byron Bruce
Mark Richard Flumiani
Charles E. Blow
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.)
Gypsum Technologies Inc
Original Assignee
Nugyp Corp
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 Nugyp Corp filed Critical Nugyp Corp
Publication of CA2670738A1 publication Critical patent/CA2670738A1/en
Application granted granted Critical
Publication of CA2670738C publication Critical patent/CA2670738C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C04B11/0282—Autoclaves, e.g. using chariots
    • 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
    • C04B11/007—After-treatment of the dehydration products, e.g. aging, stabilisation
    • 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
    • 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
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Paper (AREA)
CA2670738A 2006-12-20 2007-12-17 Calcium sulfate hemihydrate treatment process Active CA2670738C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87103906P 2006-12-20 2006-12-20
US60/871,039 2006-12-20
PCT/CA2007/002300 WO2008074137A1 (en) 2006-12-20 2007-12-17 Calcium sulfate hemihydrate treatment process

Publications (2)

Publication Number Publication Date
CA2670738A1 CA2670738A1 (en) 2008-06-26
CA2670738C true CA2670738C (en) 2015-06-23

Family

ID=39535935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2670738A Active CA2670738C (en) 2006-12-20 2007-12-17 Calcium sulfate hemihydrate treatment process

Country Status (22)

Country Link
US (2) US7824490B2 (https=)
EP (1) EP2061731B1 (https=)
JP (1) JP5518483B2 (https=)
KR (1) KR101432334B1 (https=)
CN (1) CN101563303B (https=)
AR (1) AR064812A1 (https=)
AU (1) AU2007335148B2 (https=)
BR (1) BRPI0717687B1 (https=)
CA (1) CA2670738C (https=)
CL (1) CL2007003763A1 (https=)
EA (1) EA015082B1 (https=)
EG (1) EG26845A (https=)
ES (1) ES2798001T3 (https=)
IL (1) IL198252A (https=)
MA (1) MA33005B1 (https=)
MY (1) MY150755A (https=)
NO (1) NO20092731L (https=)
NZ (1) NZ576864A (https=)
SA (1) SA07280743B1 (https=)
UA (1) UA99271C2 (https=)
WO (1) WO2008074137A1 (https=)
ZA (1) ZA200902747B (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007335148B2 (en) * 2006-12-20 2012-10-04 Gypsum Technologies Inc. Calcium sulfate hemihydrate treatment process
EP2116294A1 (de) * 2008-05-09 2009-11-11 Claudius Peters Technologies GmbH Kalzinierverfahren und- anlage
EP2163532A1 (de) 2008-09-11 2010-03-17 Claudius Peters Technologies GmbH Verfahren und Anlage zur Herstellung von Hartgips
JP5132494B2 (ja) * 2008-09-12 2013-01-30 Ｊｘ日鉱日石エネルギー株式会社 硫黄固化体製品の型枠装置
US20100300218A1 (en) * 2009-06-02 2010-12-02 Electric Power Research Institute, Inc. Dispersant application for clean-up of recirculation paths of a power producing facility during start-up
DE102010033988A1 (de) * 2010-08-11 2012-02-16 Grenzebach Bsh Gmbh Verfahren und Vorrichtung zur Stabilisierung, Kühlung und Entfeuchtung von Stuckgips
US8793897B2 (en) 2010-08-11 2014-08-05 Grenzebach Bsh Gmbh Process and device for stabilising, cooling and dehumidifying gypsum plaster
GB2497574B (en) * 2011-12-15 2019-10-02 Saint Gobain Placo Sas A method of forming a gypsum based product
US8343273B1 (en) * 2012-03-30 2013-01-01 United States Gypsum Company Method of modifying beta stucco using diethylene-triamine-pentaacetic acid
EP2671854A1 (en) 2012-06-06 2013-12-11 Etex Dryco SAS Method for stabilizing beta-hemihydrate plaster
US20150158997A1 (en) 2013-12-06 2015-06-11 Georgia-Pacific Gypsum Llc Gypsum composite modifiers
EP2894135A1 (en) 2014-01-10 2015-07-15 Saint-Gobain Placo SAS Method of curing a gypsum calcination product
WO2016073393A1 (en) * 2014-11-03 2016-05-12 Georgia-Pacific Gypsum Llc Microwave heating for gypsum manufacturing processes
AU2016316229B2 (en) * 2015-09-04 2021-03-11 Lion Corporation Ethoxylation catalyst and manufacturing method therefor
IL266008B (en) * 2016-10-17 2022-08-01 Lidds Ab A new method for producing calcium sulphate hemihydrate with unique properties
KR102408499B1 (ko) 2017-08-04 2022-06-13 크나우프 깁스 카게 고온 및 높은 습도 수준에서의 에이징을 통한 스투코 특성의 개선
CN114096223A (zh) 2019-07-12 2022-02-25 波士胶公司 适用于一次性卫生制品的不含增粘剂的热熔粘合剂组合物
CN114538884A (zh) * 2022-03-09 2022-05-27 千年舟新材科技集团股份有限公司 一种快凝早强成型木质板材及其制备方法
CN118044451B (zh) * 2022-11-15 2025-10-31 重庆同多利科技有限公司 一种实现钛石膏低碳无害化及生产多孔基质的方法

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US1713879A (en) * 1926-10-04 1929-05-21 Samuel G Mcanally Process of aging calcined gypsum
US1979704A (en) * 1930-08-05 1934-11-06 United States Gypsum Co Method of producing high strength calcined gypsum
US2177668A (en) * 1937-03-18 1939-10-31 Nat Gypsum Co Process of aging calcined gypsum
US2282091A (en) * 1938-10-17 1942-05-05 Oliver F Redd Process for preparing calcined gypsum
NL133712C (https=) * 1961-02-14 1971-10-15
US3415910A (en) 1967-01-11 1968-12-10 United States Gypsum Co Calcined gypsum and a method for its preparation
GB1233436A (https=) 1968-05-20 1971-05-26
US3527447A (en) * 1968-12-23 1970-09-08 United States Gypsum Co Process for the preparation of calcined gypsum
BE756667A (nl) 1969-09-26 1971-03-01 Geelen Hendrik E Van Werkwijze voor het bereiden van alpha-calciumsulfaathalfhydraat
DE2023853B2 (de) * 1970-05-15 1974-08-29 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Verfahren zur Alterungs-Behandlung frisch gebrannten Stuckgipses
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GB1438632A (en) * 1972-09-01 1976-06-09 Bpb Industries Ltd Calcination of gypsum
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US4533528A (en) * 1983-07-15 1985-08-06 United States Gypsum Company Process for continuously calcining gypsum to low dispersed consistency stucco
DE3844938C2 (de) * 1987-05-22 1996-09-19 Pro Mineral Ges Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung
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DD296058A5 (de) * 1990-02-19 1991-11-21 Veb Zementwerke Ruedersdorf,De Verfahren zum dehydratisieren von anfallgipsen
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FR2767815A1 (fr) * 1997-08-27 1999-02-26 Jean Couturier Procede de traitement de sulfate de calcium et liant hydraulique ainsi obtenu
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DE10260741A1 (de) 2002-12-23 2004-07-08 Outokumpu Oyj Verfahren und Anlage zur Wärmebehandlung von feinkörnigen Feststoffen
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Also Published As

Publication number Publication date
KR101432334B1 (ko) 2014-09-19
EP2061731A4 (en) 2015-08-05
US7824490B2 (en) 2010-11-02
IL198252A (en) 2013-03-24
NO20092731L (no) 2009-09-17
EA200970592A1 (ru) 2009-12-30
AR064812A1 (es) 2009-04-29
SA07280743B1 (ar) 2011-06-22
AU2007335148A1 (en) 2008-06-26
CN101563303A (zh) 2009-10-21
MY150755A (en) 2014-02-28
MA33005B1 (fr) 2012-02-01
US20110011311A1 (en) 2011-01-20
EG26845A (en) 2014-10-29
EA015082B1 (ru) 2011-04-29
AU2007335148B2 (en) 2012-10-04
US20080148998A1 (en) 2008-06-26
JP2010513192A (ja) 2010-04-30
EP2061731B1 (en) 2020-04-15
NZ576864A (en) 2012-01-12
BRPI0717687B1 (pt) 2019-06-18
CA2670738A1 (en) 2008-06-26
WO2008074137A1 (en) 2008-06-26
IL198252A0 (en) 2009-12-24
ZA200902747B (en) 2010-02-24
EP2061731A1 (en) 2009-05-27
US8282731B2 (en) 2012-10-09
CN101563303B (zh) 2013-05-01
JP5518483B2 (ja) 2014-06-11
KR20090092808A (ko) 2009-09-01
UA99271C2 (ru) 2012-08-10
ES2798001T3 (es) 2020-12-04
BRPI0717687A2 (pt) 2013-10-29
CL2007003763A1 (es) 2008-06-20

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