KR20080057003A - 탄소함유 내화물용 산화방지 조성물 및 이를 사용하여탄소함유 내화물의 초기 산화를 억제하는 방법 - Google Patents
탄소함유 내화물용 산화방지 조성물 및 이를 사용하여탄소함유 내화물의 초기 산화를 억제하는 방법 Download PDFInfo
- Publication number
- KR20080057003A KR20080057003A KR1020060130290A KR20060130290A KR20080057003A KR 20080057003 A KR20080057003 A KR 20080057003A KR 1020060130290 A KR1020060130290 A KR 1020060130290A KR 20060130290 A KR20060130290 A KR 20060130290A KR 20080057003 A KR20080057003 A KR 20080057003A
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- carbon
- refractory
- antioxidant composition
- lithium phosphate
- Prior art date
Links
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 39
- 230000003647 oxidation Effects 0.000 title claims abstract description 38
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 25
- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 24
- 229910001386 lithium phosphate Inorganic materials 0.000 claims abstract description 22
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 claims abstract description 21
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 239000011819 refractory material Substances 0.000 claims abstract description 9
- 238000009628 steelmaking Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011449 brick Substances 0.000 claims description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical group O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 2
- 229910001947 lithium oxide Inorganic materials 0.000 claims description 2
- 229910001392 phosphorus oxide Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910018070 Li 2 O 10 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K15/00—Anti-oxidant compositions; Compositions inhibiting chemical change
- C09K15/04—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds
- C09K15/06—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
- F27D1/1678—Increasing the durability of linings; Means for protecting
- F27D1/1684—Increasing the durability of linings; Means for protecting by a special coating applied to the lining
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
Description
단위: 중량% | SiO2 | Al2O3 | B2O3 | CaO | MgO | PbO | Na2O | P2O5 | Li2O |
붕규산계 복합 산화물 | 55 | 15 | 14 | 5 | 1 | 4 | 6 | - | - |
리튬인산계 복합 산화물 | - | 20 | 10 | - | - | - | 18 | 42 | 10 |
열처리 온도에 따른 산화물 펠렛의 외관조사결과 | ||
열처리온도(℃) | 붕규산계 복합 산화물 | 리튬인산계 복합 산화물 |
500 | 변화없음 | 용융개시 |
600 | 변화없음 | 직경 17mm |
700 | 변화없음 | 직경 20mm(퍼짐) |
800 | 소성수축 20% | 직경 30mm(퍼짐) |
구분 (중량%) | 비교예 | 실시예 | ||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | |
리튬인산계 복합산화물 | 30 | 60 | 50 | 50 | - | 50 | 50 | 40 |
2% CMC 용액 | 20 | 20 | 5 | 25 | - | 20 | 10 | 20 |
실리카 졸 | 50 | 20 | 45 | 25 | - | 30 | 40 | 40 |
비교예 | 실시예 | |||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | |
도포 상태 | 양호 | 양호 | 불량 | 불량 | - | 양호 | 양호 | 양호 |
용융후 알시카 내화물 표면상태 | 코팅층 형성 미흡 | 코팅층과 용융 | 코팅 미흡 | 코팅층의 다공화 | - | 양호 | 양호 | 양호 |
산화형태 | 부분산화 | 부분 산화 | 부분산화 | 부분산화 | 전면산화 | 산화없음 | ||
산화층 두께 (mm) | 3.0 | 5.0 | 3 | 4 | 9 | 1.0 | 1.0 | 1.0 |
Claims (9)
- 리튬인산계 저융점 복합 산화물 40~50중량%, 유기 증점제 10~20중량%, 및 무기 바인더 30~40중량%를 포함하는 탄소함유 내화물용 산화방지 조성물.
- 제1항에 있어서, 리튬인산계 저융점 복합 산화물은 리튬 산화물 및 인 산화물을 포함하며, 500℃~1200℃에서 용융되는 것을 특징으로 하는 산화방지 조성물.
- 제1항에 있어서, 리튬인산계 저융점 복합 산화물은 Na2O 20~25중량%, Li2O 10~20중량%, P2O5 30~40중량%, Al2O3 10~20중량%, 및 B2O3 10~15중량%를 포함하는 복합 산화물인 것을 특징으로 하는 산화방지 조성물.
- 제1항에 있어서, 유기 증점제는 카르복시메틸셀룰로스, 메틸셀룰로스 또는 그 혼합물의 1~10% 수용액인 것을 특징으로 하는 산화방지 조성물.
- 제1항에 있어서, 무기 바인더는 실리카 졸, 알루미나 졸, 물유리 또는 그 혼합물인 것을 특징으로 하는 산화방지 조성물.
- 리튬인산계 저융점 복합 산화물 40~50중량%, 유기 증점제 10~20중량%, 및 무 기 바인더 30~40중량%를 포함하는 슬러리를 탄소함유 내화물의 표면에 도포하는 것을 특징으로 하는, 탄소함유 내화물의 초기 산화 억제방법.
- 제6항에 있어서, 슬러리는 수성 슬러리인 것을 특징으로 하는 산화 억제방법.
- 제6항에 있어서, 탄소함유 내화물은 알루미나-탄화규소-탄소로 이루어진 알시카 내화물인 것을 특징으로 하는 산화 억제방법.
- 제8항에 있어서, 알시카 내화물은 제철제강 공정의 혼선차나 장입래들에 축조되는 알시카 내화벽돌인 것을 특징으로 하는 산화 억제방법.
Priority Applications (1)
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KR1020060130290A KR101236300B1 (ko) | 2006-12-19 | 2006-12-19 | 탄소함유 내화물용 산화방지 조성물 및 이를 사용하여탄소함유 내화물의 초기 산화를 억제하는 방법 |
Applications Claiming Priority (1)
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KR1020060130290A KR101236300B1 (ko) | 2006-12-19 | 2006-12-19 | 탄소함유 내화물용 산화방지 조성물 및 이를 사용하여탄소함유 내화물의 초기 산화를 억제하는 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20080057003A true KR20080057003A (ko) | 2008-06-24 |
KR101236300B1 KR101236300B1 (ko) | 2013-02-22 |
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KR1020060130290A KR101236300B1 (ko) | 2006-12-19 | 2006-12-19 | 탄소함유 내화물용 산화방지 조성물 및 이를 사용하여탄소함유 내화물의 초기 산화를 억제하는 방법 |
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Cited By (1)
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CN111819302A (zh) * | 2017-12-19 | 2020-10-23 | 安赛乐米塔尔公司 | 涂覆钢基体 |
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JP6107952B2 (ja) * | 2014-01-10 | 2017-04-05 | Jfeスチール株式会社 | 炭素含有耐火物の背面酸化抑制方法、ライニング構造体及び炭素含有耐火物 |
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JPH05202416A (ja) * | 1992-01-28 | 1993-08-10 | Nippon Steel Corp | 製鋼用塗布材及びその使用方法 |
JP3130456B2 (ja) * | 1995-09-19 | 2001-01-31 | 株式会社先進材料利用ガスジェネレータ研究所 | 耐酸化性カーボン材料およびその製造方法 |
KR100317392B1 (ko) * | 1998-11-02 | 2002-11-22 | 인더스트리얼 테크놀로지 리써치 인스티튜트 | 가교결합된발포제품의제조방법및장치 |
JP2000213682A (ja) | 1999-01-25 | 2000-08-02 | Sunny Kogyo Kk | フェル―ル継手及び該継手を用いたパイプの接続法 |
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Cited By (1)
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CN111819302A (zh) * | 2017-12-19 | 2020-10-23 | 安赛乐米塔尔公司 | 涂覆钢基体 |
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