JP5384351B2 - 超低コンシステンシーα−およびβ−ブレンド化粧しっくいの製法 - Google Patents
超低コンシステンシーα−およびβ−ブレンド化粧しっくいの製法 Download PDFInfo
- Publication number
- JP5384351B2 JP5384351B2 JP2009529174A JP2009529174A JP5384351B2 JP 5384351 B2 JP5384351 B2 JP 5384351B2 JP 2009529174 A JP2009529174 A JP 2009529174A JP 2009529174 A JP2009529174 A JP 2009529174A JP 5384351 B2 JP5384351 B2 JP 5384351B2
- Authority
- JP
- Japan
- Prior art keywords
- calcium sulfate
- reactor
- gypsum
- slurry
- water
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- C04B11/002—Mixtures of different CaSO4-modifications, e.g. plaster of Paris and anhydrite, used as cements
-
- 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
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
-
- 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
- C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
Description
アルファ硫酸カルシウム半水和物およびベータ硫酸カルシウム半水和物からなる化粧しっくい組成物を製造する方法を提供するのが本発明の目的である。
表2は、典型的な結晶変性剤を示す。また、米国特許2907667は、本明細書で参考として引用されるが、アルファ硫酸カルシウム半水和物を製造するために反応器中の反応に影響する多数の化学品を開示している。
本発明の1つのプラントコントロールおよび3つのプラントトライアルの例を行った。コントロールおよび実施例において、75%固体のスラリーを、焼成のアルファ部分について使用されるサイズ275ガロン(1041L)の1つの連続攪拌タンク反応器(CSTR)へ供給した。高温管状ミルを、実施例の焼成のベータ部分について使用した。管状ミルは、加熱されたボールミルであった。
華氏298度(148℃)の反応器温度で、供給スラリーの石膏の99%を焼成してアルファ硫酸カルシウム半水和物にし、それは32−34ccの基準コンシステンシーを有した。コントロールおよび以下の実施例における基準コンシステンシーは、上記のハンド・ドロップテストにより測定された。
12 反応器
13 水蒸気
14 結晶変性剤
16 焼成石膏生成物
20 アキュムレータータンク
24 スラリー
30 脱水ユニット
32 脱水固体含有生成物
34 除去水
38 流れ
40 釜焼成器
42 天然ガス加熱
44 乾いた生成物
50 粉砕
Claims (7)
- 硫酸カルシウム2水和物および水を含む50−75重量%の石膏のスラリーを第1の反応器へ供給する工程、
第1の反応器中でスラリーを焼成して、水、硫酸カルシウム2水和物およびアルファ硫酸カルシウム半水和物を含む部分的に焼成されたスラリーを形成する工程であって、焼成前に少なくとも1つの結晶変性剤が硫酸カルシウム2水和物および水へ添加され、スラリーは、50−90%の石膏がアルファ硫酸カルシウム半水和物へ転換される条件下で第1の反応器中に保持され、第1の反応器は焼成中15−100psig(約2.0−約7.9バール)の圧力で操作され、第1の反応器中のスラリーの滞留時間は焼成中2−30分である、工程、
部分的に焼成されたスラリーを脱水することにより、硫酸カルシウム2水和物およびアルファ硫酸カルシウム半水和物を含む脱水された固体並びに除かれた水からなる流水が形成される工程、
脱水された固体を第2の反応器へ供給する工程、および
第2の反応器中で脱水された固体を焼成して、脱水された固体中の硫酸カルシウム2水和物の少なくとも一部をベータ硫酸カルシウム半水和物へ転換する工程であって、脱水された固体の焼成は、大気圧および華氏150−1000度(約66−約538℃)で操作される第2の反応器中で行われる、工程、
を備えることを特徴とするアルファ硫酸カルシウム半水和物およびベータ硫酸カルシウム半水和物を含む生成物を製造する方法。 - 第1の反応器が連続攪拌タンク反応器(CSTR)である請求項1の方法。
- 第2の反応器が釜を含む請求項1または2の方法。
- 脱水された固体の焼成が、脱水された固体の流動床を含む釜中で行われる請求項3の方法。
- 釜へ供給される脱水した固体が2−6重量%の自由水を含む請求項4の方法。
- 脱水された固体が、脱水時および第2の反応器への供給時に、華氏150−300度(約66−約149℃)の温度を有する請求項1から5のいずれか1項の方法。
- 脱水による流水が高温度で第1の反応器に供給する工程のスラリーへ再循環されて、方法で使用された熱、水および化学品を回収する請求項1から6のいずれか1項の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/533,604 US7588634B2 (en) | 2006-09-20 | 2006-09-20 | Process for manufacturing ultra low consistency alpha- and beta- blend stucco |
US11/533,604 | 2006-09-20 | ||
PCT/US2007/018558 WO2008036160A2 (en) | 2006-09-20 | 2007-08-22 | PROCESS FOR MANUFACTURING ULTRA LOW CONSISTENCY α- AND β- BLEND STUCCO |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010504271A JP2010504271A (ja) | 2010-02-12 |
JP5384351B2 true JP5384351B2 (ja) | 2014-01-08 |
Family
ID=39188831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009529174A Expired - Fee Related JP5384351B2 (ja) | 2006-09-20 | 2007-08-22 | 超低コンシステンシーα−およびβ−ブレンド化粧しっくいの製法 |
Country Status (19)
Country | Link |
---|---|
US (1) | US7588634B2 (ja) |
EP (1) | EP2069243B1 (ja) |
JP (1) | JP5384351B2 (ja) |
KR (1) | KR101421273B1 (ja) |
CN (1) | CN101516783B (ja) |
AR (1) | AR062908A1 (ja) |
AU (1) | AU2007297815B2 (ja) |
BR (1) | BRPI0715158A2 (ja) |
CA (1) | CA2662895C (ja) |
CO (1) | CO6170352A2 (ja) |
HR (1) | HRP20090200A2 (ja) |
IL (1) | IL197489A0 (ja) |
MX (1) | MX2009002882A (ja) |
NO (1) | NO20091529L (ja) |
NZ (1) | NZ575529A (ja) |
RU (1) | RU2458014C2 (ja) |
TW (1) | TW200837015A (ja) |
WO (1) | WO2008036160A2 (ja) |
ZA (1) | ZA200902621B (ja) |
Families Citing this family (32)
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US9840066B2 (en) | 2005-06-09 | 2017-12-12 | United States Gypsum Company | Light weight gypsum board |
US11338548B2 (en) | 2005-06-09 | 2022-05-24 | United States Gypsum Company | Light weight gypsum board |
US9802866B2 (en) | 2005-06-09 | 2017-10-31 | United States Gypsum Company | Light weight gypsum board |
US11306028B2 (en) | 2005-06-09 | 2022-04-19 | United States Gypsum Company | Light weight gypsum board |
EP2061731B1 (en) * | 2006-12-20 | 2020-04-15 | Gypsum Technologies Inc. | Calcium sulfate hemihydrate treatment process |
US20090208392A1 (en) * | 2008-02-14 | 2009-08-20 | Georgia-Pacific Gypsum, Llc | Process for producing alpha-hemihydrate gypsum |
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 |
EP2418184B2 (de) | 2010-08-12 | 2021-02-17 | Lindner GFT GmbH | Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat |
US10076853B2 (en) | 2010-12-30 | 2018-09-18 | United States Gypsum Company | Slurry distributor, system, and method for using same |
MY181756A (en) | 2010-12-30 | 2021-01-06 | United States Gypsum Co | Slurry distribution system and method |
US9999989B2 (en) | 2010-12-30 | 2018-06-19 | United States Gypsum Company | Slurry distributor with a profiling mechanism, system, and method for using same |
US9296124B2 (en) | 2010-12-30 | 2016-03-29 | United States Gypsum Company | Slurry distributor with a wiping mechanism, system, and method for using same |
JP6075787B2 (ja) | 2010-12-30 | 2017-02-08 | ユナイテッド・ステイツ・ジプサム・カンパニー | スラリー分配器、システム、およびそれを用いるためのおよび方法 |
AR088520A1 (es) | 2011-10-24 | 2014-06-18 | United States Gypsum Co | Distribuidor de lechada, sistema y metodo para su uso |
WO2013063080A2 (en) | 2011-10-24 | 2013-05-02 | United States Gypsum Company | Multi-piece mold and method of making slurry distributor |
CN103857499B (zh) | 2011-10-24 | 2016-12-14 | 美国石膏公司 | 用于浆料分配的多腿排出靴 |
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 |
US9828441B2 (en) | 2012-10-23 | 2017-11-28 | United States Gypsum Company | Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products |
US10399899B2 (en) | 2012-10-23 | 2019-09-03 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
US9540810B2 (en) | 2012-10-23 | 2017-01-10 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
US10059033B2 (en) | 2014-02-18 | 2018-08-28 | United States Gypsum Company | Cementitious slurry mixing and dispensing system with pulser assembly and method for using same |
US20150376063A1 (en) * | 2014-06-27 | 2015-12-31 | Boral Ip Holdings (Australia) Pty Limited | Ultra-Lightweight Gypsum Wallboard |
US10309771B2 (en) | 2015-06-11 | 2019-06-04 | United States Gypsum Company | System and method for determining facer surface smoothness |
CN105858705A (zh) * | 2016-03-30 | 2016-08-17 | 东南大学 | 一种用废硫酸溶液制备低游离水含量二水石膏的方法 |
EP3284723A1 (de) * | 2016-08-17 | 2018-02-21 | Claudius Peters Projects GmbH | Zweistufiges kalzinierverfahren sowie anlage hierfür |
CN110023244B (zh) * | 2018-02-27 | 2021-01-01 | 江苏一夫科技股份有限公司 | 一种转晶剂以及使用其制备α型高强石膏的用途 |
WO2022175865A1 (en) | 2021-02-19 | 2022-08-25 | Knauf Gips Kg | High solids, sprayable setting type joint compound |
CN113149513B (zh) * | 2021-05-12 | 2023-05-16 | 太原科技大学 | 一种煅烧建筑石膏用增强转晶助剂及其制备方法 |
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-
2006
- 2006-09-20 US US11/533,604 patent/US7588634B2/en not_active Expired - Fee Related
-
2007
- 2007-08-22 RU RU2009110959/05A patent/RU2458014C2/ru active
- 2007-08-22 CA CA2662895A patent/CA2662895C/en not_active Expired - Fee Related
- 2007-08-22 NZ NZ575529A patent/NZ575529A/en not_active IP Right Cessation
- 2007-08-22 JP JP2009529174A patent/JP5384351B2/ja not_active Expired - Fee Related
- 2007-08-22 BR BRPI0715158-6A patent/BRPI0715158A2/pt not_active IP Right Cessation
- 2007-08-22 CN CN2007800349627A patent/CN101516783B/zh not_active Expired - Fee Related
- 2007-08-22 EP EP07811478.2A patent/EP2069243B1/en not_active Not-in-force
- 2007-08-22 WO PCT/US2007/018558 patent/WO2008036160A2/en active Application Filing
- 2007-08-22 MX MX2009002882A patent/MX2009002882A/es active IP Right Grant
- 2007-08-22 KR KR1020097007125A patent/KR101421273B1/ko active IP Right Grant
- 2007-08-22 AU AU2007297815A patent/AU2007297815B2/en not_active Ceased
- 2007-09-19 AR ARP070104143A patent/AR062908A1/es unknown
- 2007-09-19 TW TW096134922A patent/TW200837015A/zh unknown
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2009
- 2009-03-09 IL IL197489A patent/IL197489A0/en active IP Right Grant
- 2009-04-03 HR HR20090200A patent/HRP20090200A2/xx not_active Application Discontinuation
- 2009-04-16 ZA ZA200902621A patent/ZA200902621B/xx unknown
- 2009-04-17 NO NO20091529A patent/NO20091529L/no not_active Application Discontinuation
- 2009-04-20 CO CO09039667A patent/CO6170352A2/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
HRP20090200A2 (en) | 2009-06-30 |
WO2008036160A2 (en) | 2008-03-27 |
TW200837015A (en) | 2008-09-16 |
MX2009002882A (es) | 2009-03-30 |
NO20091529L (no) | 2009-04-17 |
AU2007297815B2 (en) | 2012-09-20 |
RU2458014C2 (ru) | 2012-08-10 |
US20080069762A1 (en) | 2008-03-20 |
AU2007297815A1 (en) | 2008-03-27 |
CA2662895C (en) | 2012-05-01 |
WO2008036160A3 (en) | 2008-07-24 |
AR062908A1 (es) | 2008-12-17 |
CN101516783A (zh) | 2009-08-26 |
CA2662895A1 (en) | 2008-03-27 |
BRPI0715158A2 (pt) | 2013-06-04 |
EP2069243B1 (en) | 2017-06-21 |
JP2010504271A (ja) | 2010-02-12 |
EP2069243A2 (en) | 2009-06-17 |
CN101516783B (zh) | 2012-10-17 |
EP2069243A4 (en) | 2011-10-05 |
CO6170352A2 (es) | 2010-06-18 |
RU2009110959A (ru) | 2010-11-10 |
NZ575529A (en) | 2011-05-27 |
ZA200902621B (en) | 2010-03-31 |
KR101421273B1 (ko) | 2014-07-18 |
IL197489A0 (en) | 2009-12-24 |
US7588634B2 (en) | 2009-09-15 |
WO2008036160A8 (en) | 2009-04-16 |
KR20090064564A (ko) | 2009-06-19 |
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