JP2011529019A - クロミア−アルミナ耐火物 - Google Patents
クロミア−アルミナ耐火物 Download PDFInfo
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- JP2011529019A JP2011529019A JP2011520086A JP2011520086A JP2011529019A JP 2011529019 A JP2011529019 A JP 2011529019A JP 2011520086 A JP2011520086 A JP 2011520086A JP 2011520086 A JP2011520086 A JP 2011520086A JP 2011529019 A JP2011529019 A JP 2011529019A
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- chromia
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- chromium oxide
- alumina
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims description 46
- 239000002245 particle Substances 0.000 claims abstract description 125
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000000203 mixture Substances 0.000 claims abstract description 48
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 46
- 239000000126 substance Substances 0.000 claims abstract description 29
- 239000011449 brick Substances 0.000 claims description 20
- 239000011651 chromium Substances 0.000 claims description 10
- 239000010419 fine particle Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- VYZAMTAEIAYCRO-YPZZEJLDSA-N chromium-50 Chemical compound [50Cr] VYZAMTAEIAYCRO-YPZZEJLDSA-N 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 9
- 239000002893 slag Substances 0.000 abstract description 9
- 230000035515 penetration Effects 0.000 abstract description 8
- 239000011819 refractory material Substances 0.000 description 15
- 239000000049 pigment Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000010304 firing Methods 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- FZFYOUJTOSBFPQ-UHFFFAOYSA-M dipotassium;hydroxide Chemical compound [OH-].[K+].[K+] FZFYOUJTOSBFPQ-UHFFFAOYSA-M 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
【解決手段】本発明の耐火性組成物は、化学分析により測定されたときに、酸化クロムを50%以上含有する。該耐火性組成物は、クロミア含有溶融粒子と、微粒子状の酸化クロムと、クロミア含有焼結粒子とを含有する。クロミア含有溶融粒子とクロミア含有焼結粒子は、化学分析により測定したときに酸化クロムを50%以上含有する。
【選択図】なし
Description
大きさによって等級バッチ化された溶融クロミア−アルミナであって、−4+10タイラーメッシュ粒子からなる粗粒のフラクション、−10+28タイラーメッシュ粒子からなる中間サイズの粒子フラクション、および−28タイラーメッシュ粒子からなる微粒子フラクションを含有するものを製造する工程。
前記微粒子フラクションが10〜100%の微粒子酸化クロムを含むことになるように、微粒子酸化クロムをバッチに添加する工程。
前記微粒子フラクションが10〜100%の微粒子酸化クロムを含むことになるように微粒子酸化クロムをバッチに添加する工程。
結合剤をバッチに混合し、成形体を形成可能な混合物を得る工程。
混合物をレンガ形状に押圧形成する工程。
乾燥し焼いてレンガを形成する工程。
Claims (18)
- 化学分析により測定したときに酸化クロムを50%以上含有するクロミア含有溶融粒子35〜95重量%と、微粒子状の酸化クロム1〜35重量%と、化学分析により測定したときに酸化クロムを50%以上含有するクロミア含有焼結粒子5〜50重量%とを含有することを特徴とするクロムレンガ形成用耐火性組成物。
- 前記クロミア含有溶融粒子および前記クロミア含有焼結粒子がクロミア−アルミナ粒子を主成分とするものであることを特徴とする請求項1に記載の耐火性組成物。
- 化学分析により測定したときに酸化クロムを50%以上含有することを特徴とする請求項1に記載の耐火性組成物。
- 前記クロミア含有溶融粒子が、4タイラーメッシュまたはそれより細かい粒子サイズを有することを特徴とする請求項1に記載の耐火性組成物。
- 前記クロミア含有焼結粒子の80%以上が10タイラーメッシュ以下の粒子サイズを有することを特徴とする請求項1に記載の耐火性組成物。
- 化学分析により測定したときに、酸化クロム(Cr2O3)を50%以上含有するクロミア−アルミナ溶融粒子35〜95重量%と、微粒子状の酸化クロム(Cr2O3)1〜35重量%と、化学分析により測定したときに、酸化クロムを50%以上含有するクロミア−アルミナ焼結粒子5〜50重量%とを含有することを特徴とするクロミア−アルミナ耐火物。
- 化学分析により測定したときに、酸化クロムを75重量%以上含有することを特徴とする請求項6に記載のクロミア−アルミナ耐火物。
- 化学分析により測定したときに、酸化クロムを90重量%以上含有することを特徴とする請求項6に記載のクロミア−アルミナ耐火物。
- 前記クロミア−アルミナ溶融粒子が、4タイラーメッシュまたはそれより細かい粒子サイズを有し、かつ前記クロミア−アルミナ焼結粒子が4タイラーメッシュまたはそれより細かい粒子サイズを有することを特徴とする請求項7または8に記載のクロミア−アルミナ耐火物。
- 耐火性組成物であって、化学分析により測定したときに、酸化クロム(Cr2O3)を50重量%以上含有し、前記組成物がクロミア含有溶融粒子と、微粒子状酸化クロムとクロミア含有焼結粒子とを含有し、前記クロミア含有溶融粒子およびクロミア含有焼結粒子が化学分析により測定したときに酸化クロムを50重量%以上含有することを特徴とする耐火性組成物。
- 化学分析により測定したときに酸化クロム(Cr2O3)を75重量%以上含有することを特徴とする請求項10に記載の耐火性組成物。
- 化学分析により測定したときに酸化クロム(Cr2O3)を90重量%以上含有することを特徴とする請求項10に記載の耐火性組成物。
- 前記クロミア含有溶融粒子および前記クロミア含有焼結粒子が、クロミア−アルミナ粒子を主成分とするものであることを特徴とする請求項10に記載の耐火性組成物。
- 前記クロミア−アルミナ溶融粒子が35〜95重量%の前記耐火物を含有し、前記クロミア−アルミナ焼結粒子が5〜50重量%の前記耐火物を含有することを特徴とする請求項13に記載の耐火性組成物。
- 前記微粒子状酸化クロムが前記耐火物1〜35重量%を含有することを特徴とする請求項14に記載の耐火性組成物。
- 前記クロミア含有焼結粒子が4タイラーメッシュ未満の粒子サイズを有する粒子からなり、前記粒子の80%以上が10タイラーメッシュ未満のサイズを有することを特徴とする請求項15に記載の耐火性組成物。
- 耐火性組成物であって、微粒子状の酸化クロム1〜35重量%と、クロミア焼結粒子およびクロミア溶融粒子を含む混合物を含有する耐火性組成物であって、前記混合物は50重量%以下のクロミア焼結粒子を含有し、該混合物は前記クロミア焼結粒子およびクロミア溶融粒子を化学分析により測定したときに酸化クロム(Cr2O3)を50%以上含有することを特徴とする耐火性組成物。
- 以下の工程を含むことを特徴とする耐火性レンガの製造方法。
大きさによって等級バッチ化された溶融クロミア−アルミナであって、−4+10タイラーメッシュ粒子からなる粗粒のフラクション、−10+28タイラーメッシュ粒子からなる中間サイズの粒子フラクション、および−28タイラーメッシュ粒子からなる微粒子フラクションを含有するものを製造する工程。
前記微粒子フラクションが10〜100%の微粒子酸化クロムを含むことになるように微粒子酸化クロムをバッチに添加する工程。
前記クロミア−アルミナ組成物の5〜50%が焼結クロミア−アルミナを含むことになるように焼結クロミア−アルミナを前記バッチに添加する工程。
結合剤をバッチに混合し、成形体を形成可能な混合物を得る工程。
混合物をレンガ形状に押圧形成する工程。
乾燥し焼いてレンガを形成する工程。
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US12/177,249 | 2008-07-22 | ||
US12/177,249 US7754633B2 (en) | 2008-07-22 | 2008-07-22 | Chromia-alumina refractory |
PCT/US2009/050380 WO2010011516A2 (en) | 2008-07-22 | 2009-07-13 | Chromia-alumina refractory |
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US (1) | US7754633B2 (ja) |
EP (1) | EP2303795A4 (ja) |
JP (1) | JP2011529019A (ja) |
KR (1) | KR101283756B1 (ja) |
CN (1) | CN102105416A (ja) |
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JP2012524012A (ja) * | 2009-04-15 | 2012-10-11 | サン−ゴバン サントル ド レシェルシュ エ デテュド ユーロペアン | 酸化クロムに基づく焼結製品 |
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EA027698B1 (ru) | 2010-08-10 | 2017-08-31 | Сен-Гобен Сантр Де Решерш Э Д'Этюд Эропеэн | Порошок оксида хрома |
FR2971504A1 (fr) | 2011-02-15 | 2012-08-17 | Saint Gobain Ct Recherches | Produit d'oxyde de chrome dope |
CN102417361B (zh) * | 2011-09-16 | 2013-07-03 | 中钢集团洛阳耐火材料研究院有限公司 | 一种非均质结构的Cr2O3-Al2O3耐火材料 |
TWI657067B (zh) * | 2016-02-05 | 2019-04-21 | 美商聖高拜陶器塑膠公司 | 氧化鉻耐火物件及其形成方法 |
CN108911721B (zh) * | 2018-08-31 | 2021-07-16 | 广州市石基耐火材料厂 | 骨料型氧化铬耐火材料及其制备方法 |
CN113213901B (zh) * | 2021-03-31 | 2022-11-15 | 江苏长城窑炉工程有限公司 | 一种碱炉用高铬砂捣打料 |
CN115043660A (zh) * | 2022-06-14 | 2022-09-13 | 瑞泰科技股份有限公司 | 一种熔铸高铬耐火砖 |
CN115368121A (zh) * | 2022-08-09 | 2022-11-22 | 中钢集团洛阳耐火材料研究院有限公司 | 一种均质高成品率骨料型致密铬制品的制备方法 |
CN116120042A (zh) * | 2023-01-19 | 2023-05-16 | 河北国亮新材料股份有限公司 | 一种耐火材料基质紧密堆积的方法及耐火材料 |
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US7754633B2 (en) | 2010-07-13 |
KR20110028364A (ko) | 2011-03-17 |
WO2010011516A3 (en) | 2010-04-15 |
US20100019419A1 (en) | 2010-01-28 |
KR101283756B1 (ko) | 2013-07-08 |
EP2303795A2 (en) | 2011-04-06 |
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WO2010011516A2 (en) | 2010-01-28 |
CN102105416A (zh) | 2011-06-22 |
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