JP5997274B2 - テルネサイト−ベライト−スルホアルミン酸カルシウムクリンカーの製造方法 - Google Patents
テルネサイト−ベライト−スルホアルミン酸カルシウムクリンカーの製造方法 Download PDFInfo
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Description
(1) 埋め立て材料/廃棄材料の回避;
(2) これらの材料の経済的/環境保護上の使用;
(3) 可能性のある有害物質の定着/破壊
1) 特に低品質の産業副生成物(アッシュ、スラグ等);
2) 主たるCaO源として、少なくとも部分的に石灰石と置き換えることのできる材料;
3) Al2O3(Fe2O3)源として、少なくとも部分的にボーキサイトと置き換えることのできる材料;
4) 産業プロセス由来のSO3;
5) 天然岩石/岩石ガラス
・C5S2$: 5〜75重量%、好ましくは10〜60重量%、より好ましくは20〜40重量%;
・C2S: 1〜80重量%、好ましくは5〜70、より好ましくは10〜65重量%、特に好ましくは20〜50重量%:
・C4(AxF1−x)3$: 5〜70重量%、好ましくは10〜60重量%、より好ましくは20〜45重量%;
・副相: 0〜30重量%、好ましくは5〜25重量%、より好ましくは10〜20重量%
・C4(AxF1−x)3$:(α;β)C2S=1:16〜70:1、好ましくは1:8〜8:1、より好ましくは1:5〜5:1;
・C4(AxF1−x)3$:C5S2$=1:15〜14:1、好ましくは1:8〜8:1、より好ましくは1:5〜5:1;
・C5S2$:(α;β)C2S=1:15〜70:1、好ましくは1:8〜10:1、より好ましくは1:4〜5:1;
・C4(AxF1−x)3$:((α;β)C2S+C5S2$)=1:16〜10:1、好ましくは1:8〜8:1、より好ましくは1:4〜4:1。
・CaO: 35〜65重量%
・Al2O3(Fe2O3): 7〜45重量%
・SiO2: 5〜28重量%
・SO3: 5〜20重量%
表3に、酸性の主成分及び粉末度に基づいて特徴付けて実施した、ここで説明する実施例で使用した原材料を示す。この表では1,050℃で焼き戻した後の重量損失もまた示されている。表4は、使用した産業副生成物の鉱物学的な相組成を示している。
原料混合物は、44重量%K1+25重量%FA1+サルフェート担体Al(OH)3を含有していた。焼結後、試料(M1)を直接冷却し、第二の資料(M1a)を、1,200℃から850℃へ、〜45分かけて温度を低下させ、そして、その後クリンカーを空気に曝して急速に冷却する、焼結後の焼き戻しのための冷却プログラムに供した。
原料混合物は、65重量%(80%K1/20%MK)+5重量%FA3+サルフェート担体及びAl(OH)3を含有していた。焼結後、試料(M2)を、M1と同じ冷却プログラムに供し、そしてその後冷却した。
原料混合物は、45重量%K1+35重量%S2+サルフェート担体及びAl(OH)3を含有していた。焼結後、試料(L1)は直接冷却し、第二の試料(L1a)は、焼結後にM1と同じ冷却プログラムに供し、そしてそれから冷却し、第三の試料(L1b)は、焼結後、温度を1,150℃から1,100℃へ、〜60分かけて冷却し、そしてそれからクリンカーを空気に曝して急速に冷却した。
原料混合物は、37重量%K1+54重量%FA2+サルフェート担体及びAl(OH)3を含有していた。焼結後、試料(L2)は直接冷却し、第二の試料(L2a)は、焼結後にL1bと同じ冷却プログラムに供し、それから冷却した。
原料混合物は、41重量%K1+41重量%S1+サルフェート担体及びAl(OH)3を含有していた。焼結後、試料(L3)は直接冷却し、第二の試料は(L3a)は、焼結後、M1と同じ冷却プログラムに供し、それから冷却した。
Claims (20)
- CaO、Al2O3(Fe2O3)、SiO2及びSO3の源を含有する原料粉末混合物を焼結することによって水和反応性クリンカーを製造する方法であって、
前記原料粉末混合物を、1,200℃超〜1,350℃の温度範囲で、該原料粉末混合物がクリンカー中間体生成物に変換するのに十分な時間にわたって焼結し、
前記クリンカー中間体生成物を、所望量のC5S2$を得るのに、そして所定量のアルミン酸塩相及び鉄酸塩相、及びC$が存在する該原材料の結晶性高温相の残滓がC4(AxF1−x)3$及びC5S2$に変換するのに十分な時間にわたって、1,200℃〜750℃までの温度範囲で焼き戻し、そして
主成分C4(AxF1−x)3$、(α;β)C2S及びC5S2$を次の割合、
・C5S2$ 5〜75重量%
・C2S 1〜80重量%
・C4(AxF1−x)3$ 5〜70重量%
・副相 0〜30重量%
(式中、xは、0.1〜1の数である。)
で有する前記クリンカーが冷却されることを特徴とする、上記の方法。 - 前記原料粉末混合物のために、天然原材料及び/又は産業副生成物がCaO、Al2O3(Fe2O3)、SiO2及びSO3の源として選択されることを特徴とする、請求項1に記載の方法。
- 前記天然原材料が、石灰岩、ボーキサイト、粘土/粘土岩、玄武岩、キンバーライト、イグニンブライト、カーボナタイト、無水石こう及び石こうから選択され、及び/又は、前記産業副生成物が、廃棄物質及び埋め立て材料、灰及び高品質及び低品質のスラグ、セラミック残滓、脱硫ヘドロ及び/又はリン酸石こうから選択されることを特徴とする、請求項2に記載の方法。
- Al2O3(Fe2O3)の源として、少なくとも5重量%のAl2O3(Fe2O3)含有量を有する、ボーキサイト、粘土及び/又は産業副生成物及び残滓が選択されることを特徴とする、請求項2又は3に記載の方法。
- Al2O3(Fe2O3)の源として、≧10重量%のAl2O3(Fe2O3)含有量を有する、ボーキサイト、粘土及び/又は産業副生成物及び残滓が選択されることを特徴とする、請求項4に記載の方法。
- Al2O3(Fe2O3)の源として、≧15重量%のAl2O3(Fe2O3)含有量を有する、ボーキサイト、粘土及び/又は産業副生成物及び残滓が選択されることを特徴とする、請求項4に記載の方法。
- 一種又は多種の副相の種類及び量が、前記原料粉末混合物中のCaO/Al2O3(Fe2O3)、CaO/SiO2の重量比、及びサルフェート担体によって制御され、その際、該副相が、0.1〜30重量%の割合で存在することを特徴とする、請求項1〜6のいずれか一つに記載の方法。
- 前記副相が、ケイ酸カルシウム、サルフェート、アルミン酸カルシウム、スピネル、黄長石グループの代表物質、ペリクレース、遊離石灰、石英及び/又はガラス相であることを特徴とする、請求項7に記載の方法。
- 前記副相が、5〜20重量%の割合で存在することを特徴とする、請求項7又は8に記載の方法。
- 前記水硬性クリンカーが、アルカリ金属、アルカリ土類金属、及び/又は遷移金属、及び/又は金属、及び/又は半金属、及び/又は非金属の群からの一種又は多種の第二の元素及び/又はそれらの化合物を、20重量%以下の割合で含有することを特徴とする、請求項1〜9のいずれか一つに記載の方法。
- アルカリ金属、アルカリ土類金属、及び/又は遷移金属、及び/又は金属、及び/又は半金属、及び/又は非金属の群からの前記一種又は多種の第二の元素及び/又はそれらの化合物を、≦15重量%の割合で含有することを特徴とする、請求項10に記載の方法。
- アルカリ金属、アルカリ土類金属、及び/又は遷移金属、及び/又は金属、及び/又は半金属、及び/又は非金属の群からの前記一種又は多種の第二の元素及び/又はそれらの化合物を、≦10重量%の割合で含有することを特徴とする、請求項10に記載の方法。
- 前記原料粉末混合物を調整するために、産業副生成物及びプロセスダストが調整剤として使用されることを特徴とする、請求項1〜12のいずれか一つに記載の方法。
- 前記原料粉末混合物が、1,500〜10,000cm2/gの粉末度(ブレーンによる)に粉砕されることを特徴とする、請求項1〜13のいずれか一つに記載の方法。
- 前記原料粉末混合物が、2,000〜4,000cm2/gの粉末度(ブレーンによる)に粉砕されることを特徴とする、請求項14に記載の方法。
- 前記原料粉末の組成、前記調整剤の量、燃焼条件及び焼き戻しの規制が、C5S2$及び、β−C2Sの代わりにC2Sの反応性変性が増大して起こるように選択されることを特徴とする、請求項1〜15のいずれか一つに記載の方法。
- アルカリ硫酸塩及び/又はアルカリ土類硫酸塩の形態のサルフェート担体を有するか又は有さない前記クリンカーが、2,000〜10,000cm2/gの粉末度(ブレーンによる)に粉砕されることを特徴とする、請求項1〜16のいずれか一つに記載の方法。
- 3,000〜6,000cm2/gの粉末度(ブレーンによる)に粉砕されることを特徴とする、請求項17に記載の方法。
- 4000〜5,000cm2/gの粉末度(ブレーンによる)に粉砕されることを特徴とする、請求項17に記載の方法。
- 前記サルフェート担体が、石こう及び/又は半水化物及び/又は無水物であることを特徴とする、請求項17、18又は19に記載の方法。
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EP20110006757 EP2559674A1 (de) | 2011-08-18 | 2011-08-18 | Ternesit-Belit-Calciumsulfoaluminat-Klinker und Verfahren zu seiner Herstellung |
EP11008570 | 2011-10-26 | ||
EP11008570.1 | 2011-10-26 | ||
EP20120001488 EP2636654A1 (de) | 2012-03-05 | 2012-03-05 | Ternesit als Additiv zu Calciumsulfoaluminatzement |
EP12001488.1 | 2012-03-05 | ||
EP12002111.8 | 2012-03-26 | ||
EP20120002111 EP2644577A1 (de) | 2012-03-26 | 2012-03-26 | Ternesit als Additiv zu Portlandzement |
EP12002342.9A EP2617691B1 (de) | 2011-08-18 | 2012-03-30 | Ternesit als Anreger für latent-hydraulische und puzzolanische Materialien |
EP12002342.9 | 2012-03-30 | ||
EP12003718.9A EP2617692B1 (de) | 2011-08-18 | 2012-05-10 | Verfahren und Additiv zur Steigerung der Frühfestigkeit und Verwendung des Additifs |
EP12003718.9 | 2012-05-10 | ||
PCT/EP2012/002978 WO2013023731A2 (de) | 2011-08-18 | 2012-07-16 | Verfahren zur herstellung von ternesit-belit-calciumsulfoaluminat-klinker |
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