CN104591750A - Segmented water coal slurry pressurized gasifier fireside surface brick and preparation method thereof - Google Patents
Segmented water coal slurry pressurized gasifier fireside surface brick and preparation method thereof Download PDFInfo
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- CN104591750A CN104591750A CN201410747195.6A CN201410747195A CN104591750A CN 104591750 A CN104591750 A CN 104591750A CN 201410747195 A CN201410747195 A CN 201410747195A CN 104591750 A CN104591750 A CN 104591750A
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Abstract
Relating to a gasifier fireside surface brick, the invention provides a segmented water coal slurry pressurized gasifier fireside surface brick and a preparation method thereof. The segmented water coal slurry pressurized gasifier fireside surface brick includes a first segment of fireside surface brick close to the fireside surface and a second segment of fireside surface brick close to the fireside surface. The first segment of fireside surface brick close to the fireside surface comprises the following components by mass: 85-90% of fused chromium oxide materials with a particle size of 6-0mm and less than 240 meshes respectively, 1-10% of chromium oxide green, 1-7% of alpha-Al2O3 powder, 1-3% of zirconia, and 1-3% of an additional binder. The second segment of fireside surface brick close to the fireside surface comprises the following components by mass: 75-85% of fused chromium oxide materials with a particle size of 5-0mm and less than 240 meshes respectively, 4-8% of chromium oxide green, 4-7% of alpha-Al2O3 micropowder, 6-10% of zirconia, and 1-3% of an additional binder. According to the segmented water coal slurry pressurized gasifier fireside surface brick provided by the invention, the optimal performance of each segment can be fully utilized at different life periods, thus effectively extending the service life of the fireside surface brick.
Description
[technical field]the present invention relates to a kind of vapourizing furnace side towards the fire brick, be specifically related to a kind of sectional type coal water slurry pressurized gasifier side towards the fire brick and preparation method thereof.
[background technology]
Known, the coal water slurry pressurized gasifier side towards the fire brick of current use is chromium aluminium zirconia block, and different according to installation position, its work-ing life is not identical yet, for Texaco's formula coal water slurry pressurized gasifier cylindrical shell side towards the fire brick, its work-ing life is generally at 10000-15000 hour; At present, the chromium aluminium zirconia block Wear mechanism of academia's accreditation is chemical erosion, mechanical erosion and thermal stresses, the erosion of slag and infiltration, and cause the structure of brick body progressively to suffer destruction, strength reduction with thermal stresses or other mechanical stress, and finally cause the bulk of side towards the fire brick to peel off, damage speed is accelerated greatly, seriously limits the life-span of coal water slurry pressurized gasifier side towards the fire brick; The immediate cause of block peeling phenomenon is caused to be that brick laying structure suffers destruction, strength reduction, its basic reason is because repeatedly the replacing of volumetric expansion and volumetric shrinkage, inner micro-flaw or Defect expanding in use occur chromium aluminium zirconia block, and the thermal stresses that the slag of infiltration in brick body and brick volume coefficient difference cause makes internal fissure or defect spread.
This block peeling phenomenon of coal water slurry pressurized gasifier side towards the fire brick the side towards the fire brick life-span first three/mono-substantially to there will not be, comparatively serious rear 1/3rd of life-span, specifically, in the early stage in side towards the fire brick life-span, the ability of its anti-coal slag corrosion is even more important, in the later stage in side towards the fire brick life-span, the stable ability of its holding structure is even more important, generally, increase the toughness of material, as added monoclinic zirconia, effectively can stop the expansion of material internal micro-flaw or defect and spread, keep the stable of material structure, as the side towards the fire brick of coal water slurry pressurized gasifier, chromic oxide composition in chromium aluminium zirconia block is the key improving the anti-cinder erosion performance of material monolithic, as overemphasized the toughness of material, then can weaken the anti-cinder erosion performance of material, reduce the work-ing life of side towards the fire brick, therefore, chemical composition balanced in chromium aluminium zirconia block and the life-span of block peeling phenomenon to coal water slurry pressurized gasifier side towards the fire brick in using define powerful restriction, therefore, propose a kind ofly to increase the service life, basic demand that more low cost and the coal water slurry pressurized gasifier side towards the fire brick of environmental protection become those skilled in the art.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses sectional type coal water slurry pressurized gasifier side towards the fire brick and preparation method thereof, by the recipe ratio of different performance is incorporated in same brick, and make sectional type coal water slurry pressurized gasifier side towards the fire brick make full use of the Optimal performance of this section in different lifetime, effectively extend the work-ing life of side towards the fire brick.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
A kind of sectional type coal water slurry pressurized gasifier side towards the fire brick, comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, the composition of the first paragraph side towards the fire brick of described close side towards the fire comprises according to mass percent:
Granularity is respectively 6 ~ 0mm and is less than 240 object electric smelting chromium oxide materials: 85 ~ 90%;
Chromoxide green: 1 ~ 10%;
α-Al
2o
3micro mist: 1 ~ 7%;
Zirconium white: 1 ~ 3%;
The amount of additional bonding agent: 1 ~ 3%;
The composition of the described second segment side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium oxide materials: 75 ~ 85%;
Chromoxide green: 4 ~ 8%;
α-Al
2o
3micro mist: 4 ~ 7%;
Zirconium white: 6 ~ 10%
The amount of additional bonding agent: 1 ~ 3%;
A preparation method for sectional type coal water slurry pressurized gasifier side towards the fire brick, concrete operation step is as follows:
1) prepare burden: according to recipe requirements, each raw material is weighed up by proportioning;
2) pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3) batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even;
4) reinforced: to connect previous step, weighed according to fixing specification of quality by each section of raw material after batch mixing, put in loading hopper, the edge of described loading hopper is waviness, and time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5) shaping: to use the material forming that previous step obtains by friction press or hydropress, time shaping, pressure process needs slowly;
6) dry: connect previous step, the raw material base after shaping is in drying kiln for drying;
7) fire: connect previous step, dried raw material base is fired under the reducing atmosphere of high temperature kiln.
Described sectional type coal water slurry pressurized gasifier side towards the fire brick, comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, also comprise the 3rd section of side towards the fire brick near side towards the fire, the composition of described the 3rd section of side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium corundum materials: 75 ~ 85%;
Chromoxide green: 4 ~ 10%;
α-Al
2o
3micro mist: 4 ~ 10%;
Zirconium white: 3 ~ 8%;
The amount of additional bonding agent: 1 ~ 3%;
Described sectional type coal water slurry pressurized gasifier side towards the fire brick, described bonding agent is one or several the combination in dextrin, phosphoric acid, phosphoric acid salt, alumina sol, chromic oxide colloidal sol, spent pulping liquor in organic or inorganic bonding agent.
The preparation method of described sectional type coal water slurry pressurized gasifier side towards the fire brick, the temperature of described dry kiln is 80 ~ 150 DEG C, and time of drying is 48 ~ 72 hours.
The preparation method of described sectional type coal water slurry pressurized gasifier side towards the fire brick, the temperature of described high temperature kiln is 1500 ~ 1550 DEG C, fires 8 ~ 10 hours.
Owing to adopting technique scheme, the present invention has following beneficial effect:
1, the preparation method of sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention, firing in step, effectively sintering cannot be formed between aluminum oxide and chromic oxide when temperature is lower, reduce the performance of material monolithic, and temperature too high time, due to concentrating of segmentation internal stress, the performance of material monolithic also can be reduced; By dried raw material base is fired 8 ~ 10 hours in the high temperature kiln of 1500 ~ 1500 DEG C, effectively ensure that the intensity of side towards the fire brick, effectively increase the service life.
2, the preparation method of sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention, by the recipe ratio of different performance is incorporated in same brick, and make sectional type coal water slurry pressurized gasifier side towards the fire brick make full use of the Optimal performance of this section in different lifetime, effectively extend the work-ing life of side towards the fire brick.
3, the preparation method of sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention, firing temperature is lower, 1,000,000 cubic natural gas can be saved every year, and make full use of the Optimal performance of different lifetime side towards the fire brick, reduce waist performance, extend the work-ing life of side towards the fire brick, significantly reduce the production containing chromium material and consumption.
[embodiment]
Can explain the present invention in more detail by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
Sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention, comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, the composition of the first paragraph side towards the fire brick of described close side towards the fire comprises according to mass percent:
Granularity is respectively 6 ~ 0mm order and is less than 240 object electric smelting chromium oxide materials: 85 ~ 90%;
Chromoxide green: 1 ~ 10%;
α-Al
2o
3micro mist: 1 ~ 7%;
Zirconium white: 1 ~ 3%;
The amount of additional bonding agent: 1 ~ 3%;
The composition of the described second segment side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium oxide materials: 75 ~ 85%;
Chromoxide green: 4 ~ 8%;
α-Al
2o
3micro mist: 4 ~ 7%;
Zirconium white: 6 ~ 10%
The amount of additional bonding agent: 1 ~ 3%;
A preparation method for sectional type coal water slurry pressurized gasifier side towards the fire brick, concrete operation step is as follows:
1) prepare burden: according to recipe requirements, each raw material is weighed up by proportioning;
2) pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3) batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even;
4) reinforced: to connect previous step, weighed according to fixing specification of quality by each section of raw material after batch mixing, put in loading hopper, the edge of described loading hopper is waviness, and time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5) shaping: to use the material forming that previous step obtains by friction press or hydropress, time shaping, pressure process needs slowly;
6) dry: connect previous step, the raw material base after shaping is in drying kiln for drying;
7) fire: connect previous step, dried raw material base is fired under the reducing atmosphere of high temperature kiln.
Described sectional type coal water slurry pressurized gasifier side towards the fire brick, comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, also comprise the 3rd section of side towards the fire brick near side towards the fire, the composition of described the 3rd section of side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium corundum materials: 75 ~ 85%;
Chromoxide green: 4 ~ 10%;
α-Al
2o
3micro mist: 4 ~ 10%;
Zirconium white: 3 ~ 8%;
The amount of additional bonding agent: 1 ~ 3%;
Described sectional type coal water slurry pressurized gasifier side towards the fire brick, described bonding agent is one or several the combination in dextrin, phosphoric acid, phosphoric acid salt, alumina sol, chromic oxide colloidal sol, spent pulping liquor in organic or inorganic bonding agent.
The preparation method of described sectional type coal water slurry pressurized gasifier side towards the fire brick, the temperature of described dry kiln is 80 ~ 150 DEG C, and time of drying is 48 ~ 72 hours.
The preparation method of described sectional type coal water slurry pressurized gasifier side towards the fire brick, the temperature of described high temperature kiln is 1500 ~ 1550 DEG C, fires 8 ~ 10 hours.
embodiment 1
Sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention each composition of filling a prescription consists of:
First paragraph near side towards the fire adopts following materials in percentage by mass to be prepared from:
65 parts, the electric smelting chromic oxide of 6 ~ 0mm;
Be less than 19 parts, 240 object electric smelting chromic oxide;
Chromoxide green 8 parts;
α-Al
2o
3micro mist 5 parts;
Zirconium white 1 part;
Additional bonding agent 2 parts;
Second segment near side towards the fire adopts following materials in percentage by mass to be prepared from:
65 parts, 5 ~ 0mm electric smelting chromic oxide;
240 18 parts, object electric smelting chromic oxide;
Chromoxide green 4 parts;
α-Al
2o
3micro mist 3 parts;
Zirconium white 8 parts;
Additional bonding agent 2 parts;
Preparation technology's flow process of sectional type coal water slurry pressurized gasifier side towards the fire brick is:
1, prepare burden: according to recipe requirements, each raw material is weighed up;
2, pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3, batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even; ;
4, reinforced: the ratio that two sections of raw materials account for 50% massfraction according to first paragraph, second segment accounts for 50% massfraction after mixing is put in loading hopper, the edge of loading hopper is waviness, time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5, shaping: to use on friction press or hydropress shaping, time shaping, pressure process needs slowly;
6, dry: the green compact after shaping are the drying kiln for drying 48 ~ 72 hours of 80 ~ 150 DEG C;
7, fire: dried green compact burn till 10 hours under reducing atmosphere in high temperature kiln under the condition of 1550 DEG C.
embodiment 2
Sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention each composition of filling a prescription consists of:
First paragraph near side towards the fire adopts following materials in percentage by mass to be prepared from:
65 parts, the electric smelting chromic oxide of 6 ~ 0mm;
Be less than 17 parts, 240 object electric smelting chromic oxide;
Chromoxide green 10 parts;
α-Al
2o
3micro mist 5 parts;
Zirconium white 1 part;
Additional bonding agent 2 parts;
Second segment near side towards the fire adopts following materials in percentage by mass to be prepared from:
65 parts, 5 ~ 0mm electric smelting chromic oxide;
240 18 parts, object electric smelting chromic oxide;
Chromoxide green 4 parts;
α-Al
2o
3micro mist 5 parts;
Zirconium white 6 parts;
Additional bonding agent 2 parts;
The 3rd section near side towards the fire adopts following materials in percentage by mass to be prepared from:
The electric smelting chromium corundum of 5 ~ 0mm 65 parts;
The electric smelting chromium corundum of 240mm 18 parts;
Chromoxide green 8 parts;
α-Al
2o
3micro mist 6 parts;
Zirconium white 1 part;
Additional bonding agent 2 parts;
Preparation technology's flow process of sectional type coal water slurry pressurized gasifier side towards the fire brick is:
1, prepare burden: according to recipe requirements, each raw material is weighed up;
2, pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3, batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even;
4, reinforced: the ratio that two sections of raw materials account for 50% massfraction according to first paragraph, second segment accounts for 30% massfraction, second segment accounts for 20% massfraction after mixing is put in loading hopper, the edge of loading hopper is waviness, time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5, shaping: to use on friction press or hydropress shaping, time shaping, pressure process needs slowly;
6, dry: the green compact after shaping are the drying kiln for drying 48 ~ 72 hours of 80 ~ 150 DEG C;
7, fire: dried green compact burn till 10 hours under reducing atmosphere in high temperature kiln under the condition of 1500 DEG C.
embodiment 3
Sectional type coal water slurry pressurized gasifier side towards the fire brick of the present invention each composition of filling a prescription consists of:
First paragraph near side towards the fire adopts following materials in percentage by mass to be prepared from:
65 parts, the electric smelting chromic oxide of 6 ~ 0mm;
Be less than 18 parts, 240 object electric smelting chromic oxide;
Chromoxide green 9 parts;
α-Al
2o
3micro mist 5 parts;
Zirconium white 1 part;
Additional bonding agent 2 parts;
Second segment near side towards the fire adopts following materials in percentage by mass to be prepared from:
The electric smelting chromium corundum of 5 ~ 0mm 65 parts;
240 object electric smelting chromium corundums 18 parts;
Chromoxide green 7 parts;
α-Al
2o
3micro mist 5 parts;
Zirconium white 3 parts;
Additional bonding agent 2 parts;
Preparation technology's flow process of sectional type coal water slurry pressurized gasifier side towards the fire brick is:
1, prepare burden: according to recipe requirements, each raw material is weighed up;
2, pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3, batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even;
4, reinforced: the ratio that two sections of raw materials account for 80% massfraction according to first paragraph, second segment accounts for 20% massfraction after mixing is put in loading hopper, the edge of loading hopper is waviness, time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5, shaping: to use on friction press or hydropress shaping, time shaping, pressure process needs slowly;
6, dry: the green compact after shaping are the drying kiln for drying 48 ~ 72 hours of 80 ~ 150 DEG C;
7, fire: dried green compact burn till 10 hours under reducing atmosphere in high temperature kiln under the condition of 1550 DEG C.
Claims (6)
1. a sectional type coal water slurry pressurized gasifier side towards the fire brick, comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, it is characterized in that: the composition of the first paragraph side towards the fire brick of described close side towards the fire comprises according to mass percent:
Granularity is respectively 6 ~ 0mm and is less than 240 object electric smelting chromium oxide materials: 85 ~ 90%;
Chromoxide green: 1 ~ 10%;
α-Al
2o
3micro mist: 1 ~ 7%;
Zirconium white: 1 ~ 3%;
The amount of additional bonding agent: 1 ~ 3%;
The composition of the described second segment side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium oxide materials: 75 ~ 85%;
Chromoxide green: 4 ~ 8%;
α-Al
2o
3micro mist: 4 ~ 7%;
Zirconium white: 6 ~ 10%
The amount of additional bonding agent: 1 ~ 3%.
2. a preparation method for sectional type coal water slurry pressurized gasifier side towards the fire brick, is characterized in that: concrete operation step is as follows:
1) prepare burden: according to recipe requirements, each raw material is weighed up by proportioning;
2) pre-mixing: be less than 240 object electric smelting chromic oxide, chromoxide green, α-Al by load weighted
2o
3micro mist and zirconium white add in vibrations ball mill machine and carry out pre-mixing, and mixing time is 30 ~ 60min;
3) batch mixing: first the electric smelting chromic oxide of 5 ~ 0mm is carried out premix, add bonding agent after mixing, adds the premix that previous step obtains, continues batch mixing even to raw material after batch mixing is even;
4) reinforced: to connect previous step, weighed according to fixing specification of quality by each section of raw material after batch mixing, put in loading hopper, the edge of described loading hopper is waviness, and time reinforced, loading hopper adds fast facing to mould, and then each section of raw material is taken off smooth respectively;
5) shaping: to use the material forming that previous step obtains by friction press or hydropress, time shaping, pressure process needs slowly;
6) dry: connect previous step, the raw material base after shaping is in drying kiln for drying;
7) fire: connect previous step, dried raw material base is fired under the reducing atmosphere of high temperature kiln.
3. described sectional type coal water slurry pressurized gasifier side towards the fire brick according to claim 1, it is characterized in that: comprise the first paragraph side towards the fire brick near side towards the fire and the second segment side towards the fire brick near side towards the fire, also comprise the 3rd section of side towards the fire brick near side towards the fire, the composition of described the 3rd section of side towards the fire brick near side towards the fire comprises according to mass percent:
Granularity is respectively 5 ~ 0mm and is less than 240 object electric smelting chromium corundum materials: 75 ~ 85%;
Chromoxide green: 4 ~ 10%;
α-Al
2o
3micro mist: 4 ~ 10%;
Zirconium white: 3 ~ 8%;
The amount of additional bonding agent: 1 ~ 3%.
4. sectional type coal water slurry pressurized gasifier side towards the fire brick according to claim 1, is characterized in that: described bonding agent is one or several the combination in dextrin, phosphoric acid, phosphoric acid salt, alumina sol, chromic oxide colloidal sol, spent pulping liquor in organic or inorganic bonding agent.
5. the preparation method of sectional type coal water slurry pressurized gasifier side towards the fire brick according to claim 2, is characterized in that: the temperature of described dry kiln is 80 ~ 150 DEG C, and time of drying is 48 ~ 72 hours.
6. the preparation method of sectional type coal water slurry pressurized gasifier side towards the fire brick according to claim 2, is characterized in that: the temperature of described high temperature kiln is 1500 ~ 1550 DEG C, fires 8 ~ 10 hours.
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CN201410747195.6A CN104591750B (en) | 2014-12-10 | 2014-12-10 | Segmented water coal slurry pressurized gasifier fireside surface brick and preparation method thereof |
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CN201410747195.6A CN104591750B (en) | 2014-12-10 | 2014-12-10 | Segmented water coal slurry pressurized gasifier fireside surface brick and preparation method thereof |
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CN104591750A true CN104591750A (en) | 2015-05-06 |
CN104591750B CN104591750B (en) | 2017-02-01 |
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Cited By (1)
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CN112313188A (en) * | 2018-07-02 | 2021-02-02 | 东京窯业株式会社 | Chromium oxide brick |
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CN101591189A (en) * | 2009-03-19 | 2009-12-02 | 宜兴新威利成耐火材料有限公司 | Cr-Zr brick for coal slurry gasifier and preparation method thereof |
CN101913886A (en) * | 2010-07-23 | 2010-12-15 | 李正平 | 95 chromium-aluminum-zirconium brick for coal water slurry pressurized gasifier and preparation method thereof |
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2014
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CN101591189A (en) * | 2009-03-19 | 2009-12-02 | 宜兴新威利成耐火材料有限公司 | Cr-Zr brick for coal slurry gasifier and preparation method thereof |
CN101913886A (en) * | 2010-07-23 | 2010-12-15 | 李正平 | 95 chromium-aluminum-zirconium brick for coal water slurry pressurized gasifier and preparation method thereof |
CN102079652A (en) * | 2010-11-22 | 2011-06-01 | 武汉科技大学 | High thermal shock resisting Cr2O3-Al2O3-ZrO2 brick and production method thereof |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112313188A (en) * | 2018-07-02 | 2021-02-02 | 东京窯业株式会社 | Chromium oxide brick |
US20210101835A1 (en) * | 2018-07-02 | 2021-04-08 | Tyk Corporation | Chromia-based brick |
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