DK4059904T3 - A process for the continuous preparation of alpha-calcium sulphate hemihydrate and a particulate gypsum - Google Patents

A process for the continuous preparation of alpha-calcium sulphate hemihydrate and a particulate gypsum Download PDF

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Publication number
DK4059904T3
DK4059904T3 DK21305344.0T DK21305344T DK4059904T3 DK 4059904 T3 DK4059904 T3 DK 4059904T3 DK 21305344 T DK21305344 T DK 21305344T DK 4059904 T3 DK4059904 T3 DK 4059904T3
Authority
DK
Denmark
Prior art keywords
alpha
calcium sulphate
continuous preparation
sulphate hemihydrate
particulate gypsum
Prior art date
Application number
DK21305344.0T
Other languages
English (en)
Inventor
Olivier Francy
Lionel Magaud
Binh Tran
Joël Colombo
Original Assignee
Saint Gobain Placo
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=75302487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK4059904(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Saint Gobain Placo filed Critical Saint Gobain Placo
Application granted granted Critical
Publication of DK4059904T3 publication Critical patent/DK4059904T3/da

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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
    • C04B11/06—Calcium sulfate cements starting from anhydrite
    • 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
    • C04B11/002—Mixtures of different CaSO4-modifications, e.g. plaster of Paris and anhydrite, used as cements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
DK21305344.0T 2021-03-19 2021-03-19 A process for the continuous preparation of alpha-calcium sulphate hemihydrate and a particulate gypsum DK4059904T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21305344.0A EP4059904B1 (en) 2021-03-19 2021-03-19 A process for the continuous preparation of alpha-calcium sulphate hemihydrate

Publications (1)

Publication Number Publication Date
DK4059904T3 true DK4059904T3 (en) 2023-10-09

Family

ID=75302487

Family Applications (1)

Application Number Title Priority Date Filing Date
DK21305344.0T DK4059904T3 (en) 2021-03-19 2021-03-19 A process for the continuous preparation of alpha-calcium sulphate hemihydrate and a particulate gypsum

Country Status (15)

Country Link
US (1) US20240116810A1 (da)
EP (2) EP4059904B1 (da)
JP (1) JP2024510707A (da)
CN (1) CN116917248B (da)
BR (1) BR112023015397A2 (da)
CA (1) CA3207480A1 (da)
CL (1) CL2023002774A1 (da)
DK (1) DK4059904T3 (da)
ES (1) ES2961610T3 (da)
FI (1) FI4059904T3 (da)
HU (1) HUE063727T2 (da)
MX (1) MX2023008778A (da)
PL (1) PL4059904T3 (da)
PT (1) PT4059904T (da)
WO (1) WO2022194499A1 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3166631A1 (fr) 2024-09-20 2026-03-27 Saint-Gobain Placo Procédé de préparation d’hémihydrate alpha de sulfate de calcium.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162426A (en) * 1979-06-05 1980-12-17 Kawasaki Heavy Ind Ltd Manufacture of alpha-type hemihydrate gypsum
WO2001079116A1 (en) 2000-04-14 2001-10-25 The Research Foundation Of State University Of New York Alpha calcium sulfate hemihydrate and a method of making alpha calcium sulfate hemihydrate
JP4371801B2 (ja) 2003-03-27 2009-11-25 吉野石膏株式会社 石膏ボード廃材からα型半水石膏を製造する方法および石膏ボード用原紙の回収方法
CN101058488A (zh) 2007-04-10 2007-10-24 山东金信新型建材有限公司 液相法生产α石膏粉工艺
US20090208392A1 (en) * 2008-02-14 2009-08-20 Georgia-Pacific Gypsum, Llc Process for producing alpha-hemihydrate gypsum
EP2418184B2 (de) 2010-08-12 2021-02-17 Lindner GFT GmbH Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat
US20120090508A1 (en) 2010-10-19 2012-04-19 United States Gypsum Company Method for producing wet gypsum accelerator
GB2497574B (en) * 2011-12-15 2019-10-02 Saint Gobain Placo Sas A method of forming a gypsum based product
CN102786241A (zh) * 2012-04-24 2012-11-21 河北钢铁集团矿业有限公司 用于全尾砂胶结充填的凝胶材料
CN103723986A (zh) * 2013-12-27 2014-04-16 金川集团股份有限公司 一种基于磷石膏的棒磨砂充填料早强胶凝材料
JP7134668B2 (ja) * 2018-03-28 2022-09-12 Ｕｂｅ三菱セメント株式会社 セメント系固化材組成物
CN108840646A (zh) 2018-08-14 2018-11-20 广东雅穗集成家居科技有限公司 一种无机凝胶材料及其制备方法与用途
CN112408936B (zh) * 2020-11-04 2022-06-07 泰山石膏有限公司 一种提高石膏基材料力学性能的方法

Also Published As

Publication number Publication date
PL4059904T3 (pl) 2024-02-19
EP4234510A3 (en) 2023-09-27
ES2961610T3 (es) 2024-03-12
HUE063727T2 (hu) 2024-01-28
PT4059904T (pt) 2023-09-13
EP4234510A2 (en) 2023-08-30
MX2023008778A (es) 2023-08-28
WO2022194499A1 (en) 2022-09-22
EP4059904B1 (en) 2023-09-06
JP2024510707A (ja) 2024-03-11
CN116917248B (zh) 2025-10-17
CN116917248A (zh) 2023-10-20
EP4059904A1 (en) 2022-09-21
FI4059904T3 (fi) 2023-10-03
US20240116810A1 (en) 2024-04-11
CL2023002774A1 (es) 2024-04-19
BR112023015397A2 (pt) 2023-09-26
CA3207480A1 (en) 2022-09-22

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