WO2010013807A1 - 二水石膏の連続式改質方法及び該方法で改質された改質二水石膏 - Google Patents

二水石膏の連続式改質方法及び該方法で改質された改質二水石膏 Download PDF

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Publication number
WO2010013807A1
WO2010013807A1 PCT/JP2009/063666 JP2009063666W WO2010013807A1 WO 2010013807 A1 WO2010013807 A1 WO 2010013807A1 JP 2009063666 W JP2009063666 W JP 2009063666W WO 2010013807 A1 WO2010013807 A1 WO 2010013807A1
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WO
WIPO (PCT)
Prior art keywords
dihydrate gypsum
gypsum
crystallization
hemihydrate
modified
Prior art date
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PCT/JP2009/063666
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English (en)
French (fr)
Inventor
横山　至
浩志 勝本
保雄 川村
Original Assignee
吉野石膏株式会社
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
Priority to JP2010522761A priority Critical patent/JP5458013B2/ja
Priority to ES09803045.5T priority patent/ES2665753T3/es
Priority to MX2011001116A priority patent/MX2011001116A/es
Priority to BRPI0916593A priority patent/BRPI0916593B1/pt
Priority to AU2009277498A priority patent/AU2009277498B2/en
Priority to CN200980129561.9A priority patent/CN102123950B/zh
Priority to CA2731836A priority patent/CA2731836C/en
Priority to US13/055,891 priority patent/US8529863B2/en
Application filed by 吉野石膏株式会社 filed Critical 吉野石膏株式会社
Priority to KR1020137002867A priority patent/KR101346493B1/ko
Priority to KR1020117004554A priority patent/KR101286336B1/ko
Priority to EP09803045.5A priority patent/EP2305605B1/en
Priority to RU2011102297/05A priority patent/RU2472706C2/ru
Publication of WO2010013807A1 publication Critical patent/WO2010013807A1/ja
Priority to US13/962,601 priority patent/US9458025B2/en

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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
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/11—Powder tap density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

　本発明は、原料とする二水石膏を焼成して半水石膏にする半水化工程と、該半水石膏を水性スラリー中で水和・再結晶化させて、原料とする二水石膏とは別の結晶形態の改質二水石膏とする再結晶化工程とを有し、該再結晶化工程において、再結晶化反応槽中で、水性スラリーを均一になるように撹拌しつつ一定の温度に保持し、かつ、再結晶化反応槽への半水石膏の供給量、及び、再結晶化反応槽から再結晶化した改質二水石膏を抜き出す抜き出し量が実質的に等量になるよう制御し、連続して又は間歇して半水石膏の供給及び再結晶化した改質二水石膏の抜き出しを行う二水石膏の連続式改質方法である。 　上記本発明によれば、出発原料とする二水石膏を、一旦焼成して半水石膏とした後に再結晶化することで、一般的には得ることができない大きい結晶からなる高純度の改質二水石膏にする方法が提供される。
PCT/JP2009/063666 2008-07-31 2009-07-31 二水石膏の連続式改質方法及び該方法で改質された改質二水石膏 WO2010013807A1 (ja)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CA2731836A CA2731836C (en) 2008-07-31 2009-07-31 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
MX2011001116A MX2011001116A (es) 2008-07-31 2009-07-31 Proceso para la modificacion continua de yeso dehidratado y yeso dihidratado modificado obtenido mediante el proceso.
BRPI0916593A BRPI0916593B1 (pt) 2008-07-31 2009-07-31 processo para modificação contínua de gesso diidratado
AU2009277498A AU2009277498B2 (en) 2008-07-31 2009-07-31 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
CN200980129561.9A CN102123950B (zh) 2008-07-31 2009-07-31 二水石膏的连续式改性方法及用该方法改性了的改性二水石膏
JP2010522761A JP5458013B2 (ja) 2008-07-31 2009-07-31 二水石膏の連続式改質方法
US13/055,891 US8529863B2 (en) 2008-07-31 2009-07-31 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
ES09803045.5T ES2665753T3 (es) 2008-07-31 2009-07-31 Proceso para la modificación continua de yeso dihidratado
KR1020137002867A KR101346493B1 (ko) 2008-07-31 2009-07-31 이수석고의 개질방법
KR1020117004554A KR101286336B1 (ko) 2008-07-31 2009-07-31 이수석고의 연속식 개질방법 및 상기 방법으로 개질된 개질 이수석고
EP09803045.5A EP2305605B1 (en) 2008-07-31 2009-07-31 Process for continuous modification of dihydrate gypsum
RU2011102297/05A RU2472706C2 (ru) 2008-07-31 2009-07-31 Способ непрерывной модификации дигидрата гипса и модифицированный дигидрат гипса, полученный этим способом
US13/962,601 US9458025B2 (en) 2008-07-31 2013-08-08 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-197920 2008-07-31
JP2008197920 2008-07-31

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/055,891 A-371-Of-International US8529863B2 (en) 2008-07-31 2009-07-31 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
US13/962,601 Continuation US9458025B2 (en) 2008-07-31 2013-08-08 Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process

Publications (1)

Publication Number Publication Date
WO2010013807A1 true WO2010013807A1 (ja) 2010-02-04

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PCT/JP2009/063666 WO2010013807A1 (ja) 2008-07-31 2009-07-31 二水石膏の連続式改質方法及び該方法で改質された改質二水石膏

Country Status (12)

Country Link
US (2) US8529863B2 (ja)
EP (2) EP2305605B1 (ja)
JP (7) JP5458013B2 (ja)
KR (2) KR101346493B1 (ja)
CN (3) CN104261453B (ja)
AU (1) AU2009277498B2 (ja)
BR (1) BRPI0916593B1 (ja)
CA (2) CA2852385C (ja)
ES (2) ES2665753T3 (ja)
MX (1) MX2011001116A (ja)
RU (1) RU2472706C2 (ja)
WO (1) WO2010013807A1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
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JP2014152070A (ja) * 2013-02-07 2014-08-25 Tokuyama Corp 廃石膏ボードの利用方法
JP2014231447A (ja) * 2013-05-29 2014-12-11 学校法人日本大学 石膏ボード廃材中の石膏を二水石膏として再生する方法
JP2017095287A (ja) * 2015-11-18 2017-06-01 株式会社トクヤマ フッ素溶出量を低減した二水石膏の製造方法
JP2020065975A (ja) * 2018-10-25 2020-04-30 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP2020065965A (ja) * 2018-10-23 2020-04-30 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP2020142962A (ja) * 2019-03-07 2020-09-10 株式会社トクヤマ 二水石膏の製造方法

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CA2852385C (en) * 2008-07-31 2017-07-11 Yoshino Gypsum Co., Ltd. Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
JP2012229152A (ja) * 2011-04-13 2012-11-22 Tokuyama Corp 石膏ボード廃材からの石膏成形体用原料の石膏粉末の製造方法
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WO2014141926A1 (ja) * 2013-03-13 2014-09-18 株式会社トクヤマ 石膏スラリーの連続的な製造方法
US9896366B2 (en) 2014-02-26 2018-02-20 Ecolab Usa Inc. Alternative additives to enhance slurry dewatering
CN106457235B (zh) 2014-04-02 2019-08-13 范德堡大学 用于从磷石膏移除杂质和制造石膏粘合剂和产品的系统和方法
JP2016117617A (ja) * 2014-12-22 2016-06-30 株式会社トクヤマ 二水石膏製造装置
CN106044826A (zh) * 2016-05-26 2016-10-26 东南大学 一种用于生产α型高强石膏的转晶剂
US10023496B1 (en) 2017-06-16 2018-07-17 United States Gypsum Company No fiber calcination of gypsum for gypsum fiberboard
CN107324677A (zh) * 2017-08-25 2017-11-07 四川屹科环保科技有限公司 高强半水石膏粉常压半干法制备方法、制备装置
CN109292809A (zh) * 2018-09-30 2019-02-01 攀钢集团攀枝花钢铁研究院有限公司 钛石膏的提纯方法、石膏和石膏的应用
CN110238158A (zh) * 2019-05-28 2019-09-17 罗守训 垃圾处理系统
JP7303729B2 (ja) * 2019-11-14 2023-07-05 株式会社トクヤマ 廃石膏ボードの処理方法
CN111320446B (zh) * 2020-02-29 2022-10-21 湖北省建筑工程质量监督检验测试中心 一种高强度自防水磷石膏路基材料及其制备方法
CN111569526B (zh) * 2020-05-25 2022-03-11 河北化工医药职业技术学院 一种二水石膏生产线的自动升降过滤产物系统
EP3984977B1 (de) * 2020-10-19 2022-11-09 Lindner NORIT GmbH & Co. KG Verfahren zum recycling von gipskartonmaterial
CN113800868B (zh) * 2021-08-26 2023-08-15 淮南北新建材有限公司 一种优化纸面石膏板性能的方法
JP2023036206A (ja) * 2021-09-02 2023-03-14 株式会社トクヤマ 石膏の晶析方法
JP2023036207A (ja) * 2021-09-02 2023-03-14 株式会社トクヤマ 廃石膏ボードからの石膏の回収方法
CN115889409A (zh) * 2022-11-11 2023-04-04 茌平信源环保建材有限公司 一种实现在线废石膏板回收利用的系统
CN117843263B (zh) * 2024-01-15 2024-07-05 泰山石膏（湖北）有限公司 基于复合碳材同步改性的阵列激光烧蚀磷石膏预处理方法

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Publication number Priority date Publication date Assignee Title
JP2014152070A (ja) * 2013-02-07 2014-08-25 Tokuyama Corp 廃石膏ボードの利用方法
JP2014231447A (ja) * 2013-05-29 2014-12-11 学校法人日本大学 石膏ボード廃材中の石膏を二水石膏として再生する方法
JP2017095287A (ja) * 2015-11-18 2017-06-01 株式会社トクヤマ フッ素溶出量を低減した二水石膏の製造方法
JP2020065965A (ja) * 2018-10-23 2020-04-30 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP7121628B2 (ja) 2018-10-23 2022-08-18 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP2020065975A (ja) * 2018-10-25 2020-04-30 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP7078512B2 (ja) 2018-10-25 2022-05-31 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
JP2020142962A (ja) * 2019-03-07 2020-09-10 株式会社トクヤマ 二水石膏の製造方法
JP7284596B2 (ja) 2019-03-07 2023-05-31 株式会社トクヤマ 二水石膏の製造方法

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