CN108658611B - 一种堇青石结合六铝酸钙匣钵及其制备方法 - Google Patents
一种堇青石结合六铝酸钙匣钵及其制备方法 Download PDFInfo
- Publication number
- CN108658611B CN108658611B CN201810424429.1A CN201810424429A CN108658611B CN 108658611 B CN108658611 B CN 108658611B CN 201810424429 A CN201810424429 A CN 201810424429A CN 108658611 B CN108658611 B CN 108658611B
- Authority
- CN
- China
- Prior art keywords
- cordierite
- sagger
- calcium hexaluminate
- less
- combined
- 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.)
- Active
Links
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 92
- 239000011575 calcium Substances 0.000 title claims abstract description 92
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 75
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000004927 clay Substances 0.000 claims abstract description 13
- 238000000748 compression moulding Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 15
- 229910000278 bentonite Inorganic materials 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000003628 erosive effect Effects 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 27
- 229910052744 lithium Inorganic materials 0.000 description 27
- 239000007774 positive electrode material Substances 0.000 description 12
- 230000002194 synthesizing effect Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052863 mullite Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
本发明涉及一种堇青石结合六铝酸钙匣钵及其制备方法。其技术方案是:先以50~65wt%的六铝酸钙骨料、25~35wt%的堇青石粉料和5~15wt%的塑性黏土为原料混合,再外加所述原料4~8wt%的结合剂,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。本发明具有生产成本低和制备工艺简单的特点,所制得的堇青石结合六铝酸钙匣钵抗侵蚀性能优异和使用寿命长。
Description
技术领域
本发明属于匣钵技术领域。特别涉及一种堇青石结合六铝酸钙匣钵及其制备方法。
背景技术
高温固相合成法因工艺简单以及对设备要求低,在锂离子电池正极材料的实际生产中得到了广泛应用,匣钵作为高温焙烧过程中盛装原料的容器,主要因合成正极原料的侵蚀和反复的冷热循环出现损毁。随着锂离子电池行业的快速发展,锂离子电池日益增长的需求量和高电压的发展趋势对匣钵的性能提出了更为严格的要求。
“锆莫来石匣钵”(ZL201410189300.9)专利技术,公开了一种以莫来石、板状刚玉和锆英砂等为原料制备匣钵的方法,该技术采用的原料具有良好的热震稳定性,但原料价格昂贵和烧成温度高,不利于大规模生产。“循环式锂电池正极材料用焙烧匣钵及其制备方法”(ZL201310194571.9)专利技术,分别以莫来石和氧化锆等原料制得匣钵基体层和工作层,匣钵的抗侵蚀性能得到提高,但基体层与工作层间的结合部位在使用过程中易开裂。“一种抗锂电池高温腐蚀层状匣钵及其制备方法”(CN201610159994.0)专利技术,公开了一种底面具有三层结构的匣钵的制备方法,成型步骤复杂,烧成温度下堇青石易发生熔融。“一种具有抗锂电池高温腐蚀涂层的匣钵及其制备方法”(CN201610159837.X)专利技术,以莫来石和堇青石等为原料制得匣钵坯体,并通过在匣钵坯体表面浸渍釉料提高抗侵蚀性能,但增加了浸渍步骤,提高了生产工艺的复杂程度。
发明内容
本发明旨在克服现有技术缺陷,目的是提供一种生产成本低和制备工艺简单的堇青石结合六铝酸钙匣钵的制备方法;所制备的堇青石结合六铝酸钙匣钵抗侵蚀性能优异和使用寿命长。
为实现上述目的,本发明所采用的技术方案是:先以50~65wt%的六铝酸钙骨料、25~35wt%的堇青石粉料和5~15wt%的塑性黏土为原料混合,再外加所述原料4~8wt%的结合剂,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
所述六铝酸钙的主要化学成分是:Al2O3≥90wt%,CaO≥7.5wt%;六铝酸钙的体积密度≥2.8g/cm3,显气孔率≤13%;六铝酸钙骨料的颗粒级配是:粒径小于2mm且大于等于1mm的为20~30wt%,粒径小于1mm且大于等于0.5mm的为35~50wt%,粒径小于0.5mm且大于等于0.2mm的为30~40wt%。
所述堇青石粉料的堇青石含量≥92wt%;堇青石粉料的粒径为0.15~0.05mm。
所述塑性黏土为软质黏土或为膨润土。
所述结合剂为水玻璃或为碱性纸浆废液。
由于采用上述技术方案,本发明与现有技术相比具有如下积极效果:
本发明经高温处理后的六铝酸钙骨料通过堇青石形成连接,即形成堇青石结合六铝酸钙结构,烧成温度与目前广泛使用的堇青石质匣钵烧成温度接近,便于生产;六铝酸钙具有优异的耐碱侵蚀性能,提高了匣钵的抗侵蚀性能和使用寿命;匣钵的制备过程中一次成型,简化了制备工艺,降低了生产成本和劳动强度。
本发明制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为45~60MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数超过38次时,工作面出现剥落。
因此,本发明具有生产成本低和制备工艺简单的特点,所制备的堇青石结合六铝酸钙匣钵抗侵蚀性能优异和使用寿命长。
具体实施方式
下面结合结合具体实施方式对本发明作进一步的描述,并非对其保护范围的限制:
为避免重复,先将本具体实施方式所要涉及的技术参数统一描述如下,实施例中将不赘述:
所述六铝酸钙的主要化学成分是:Al2O3≥90wt%,CaO≥7.5wt%;六铝酸钙的体积密度≥2.8g/cm3,显气孔率≤13%;六铝酸钙骨料的颗粒级配是:粒径小于2mm且大于等于1mm的为20~30wt%,粒径小于1mm且大于等于0.5mm的为35~50wt%,粒径小于0.5mm且大于等于0.2mm的为30~40wt%。
所述堇青石粉料的堇青石含量≥92wt%;堇青石粉料的粒径为0.15~0.05mm。
实施例1
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以50~55wt%的六铝酸钙骨料、32~35wt%的堇青石粉料和12~15wt%的软质黏土为原料混合,再外加所述原料4~8wt%的水玻璃,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例1制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.3g/cm3;耐压强度为55~60MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到39次时,工作面出现剥落。
实施例2
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以55~60wt%的六铝酸钙骨料、30~33wt%的堇青石粉料和9~12wt%的软质黏土为原料混合,再外加所述原料4~8wt%的水玻璃,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例2制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.3g/cm3;耐压强度为50~55MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到42次时,工作面出现剥落。
实施例3
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以60~65wt%的六铝酸钙骨料、27~30wt%的堇青石粉料和7~10wt%的软质黏土为原料混合,再外加所述原料4~8wt%的水玻璃,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例3制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为45~50MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到47次时,工作面出现剥落。
实施例4
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以60~65wt%的六铝酸钙骨料、25~28wt%的堇青石粉料和10~13wt%的膨润土为原料混合,再外加所述原料4~8wt%的水玻璃,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例4制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为45~50MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到45次时,工作面出现剥落。
实施例5
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以60~65wt%的六铝酸钙骨料、30~33wt%的堇青石粉料和5~8wt%的膨润土为原料混合,再外加所述原料4~8wt%的水玻璃,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例5制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为55~60MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到52次时,工作面出现剥落。
实施例6
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以55~60wt%的六铝酸钙骨料、27~30wt%的堇青石粉料和12~15wt%的膨润土为原料混合,再外加所述原料4~8wt%的碱性纸浆废液,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例6制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.3g/cm3;耐压强度为50~55MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到42次时,工作面出现剥落。
实施例7
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以50~55wt%的六铝酸钙骨料、32~35wt%的堇青石粉料和12~15wt%的膨润土为原料混合,再外加所述原料4~8wt%的碱性纸浆废液,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例7制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.3g/cm3;耐压强度为48~53MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到40次时,工作面出现剥落。
实施例8
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以55~60wt%的六铝酸钙骨料、30~33wt%的堇青石粉料和9~12wt%的软质黏土为原料混合,再外加所述原料4~8wt%的碱性纸浆废液,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例8制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.3g/cm3;耐压强度为45~50MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到45次时,工作面出现剥落。
实施例9
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:
先以60~65wt%的六铝酸钙骨料、27~30wt%的堇青石粉料和7~10wt%的膨润土为原料混合,再外加所述原料4~8wt%的碱性纸浆废液,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例9制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为47~52MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到49次时,工作面出现剥落。
实施例10
一种堇青石结合六铝酸钙匣钵及其制备方法。本实施例所述制备方法是:先以58~63wt%的六铝酸钙骨料、25~28wt%的堇青石粉料和11~14wt%的软质黏土为原料混合,再外加所述原料4~8wt%的碱性纸浆废液,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵。
本实施例10制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.4g/cm3;耐压强度为45~50MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数达到46次时,工作面出现剥落。
本具体实施方式与现有技术相比具有如下积极效果:
本具体实施方式经高温处理后的六铝酸钙骨料通过堇青石形成连接,即形成堇青石结合六铝酸钙结构,烧成温度与目前广泛使用的堇青石质匣钵烧成温度接近,便于生产;六铝酸钙具有优异的耐碱侵蚀性能,提高了匣钵的抗侵蚀性能和使用寿命;匣钵的制备过程中一次成型,简化了制备工艺,降低了生产成本和劳动强度。
本具体实施方式制备的堇青石结合六铝酸钙匣钵经检测:体积密度低于2.5g/cm3;耐压强度为45~60MPa;1000℃下合成锂电池正极材料钴酸锂,所制备的堇青石结合六铝酸钙匣钵循环使用次数超过38次时,工作面出现剥落。
因此,本具体实施方式具有生产成本低和制备工艺简单的特点,所制备的堇青石结合六铝酸钙匣钵抗侵蚀性能优异和使用寿命长。
Claims (6)
1.一种堇青石结合六铝酸钙匣钵的制备方法,其特征在于所述制备方法是:先以50~65wt%的六铝酸钙骨料、25~35wt%的堇青石粉料和5~15wt%的塑性黏土为原料混合,再外加所述原料4~8wt%的结合剂,混合均匀,机压成型,干燥,然后在1350~1400℃条件下保温8~10h,制得堇青石结合六铝酸钙匣钵;
六铝酸钙骨料的颗粒级配是:粒径小于2mm且大于等于1mm的为20~30wt%,粒径小于1mm且大于等于0.5mm的为35~50wt%,粒径小于0.5mm且大于等于0.2mm的为30~40wt%。
2.根据权利要求1所述的堇青石结合六铝酸钙匣钵的制备方法,其特征在于所述六铝酸钙骨料的主要化学成分是:Al2O3≥90wt%,CaO≥7.5wt%;六铝酸钙的体积密度≥2.8g/cm3,显气孔率≤13%。
3.根据权利要求1所述的堇青石结合六铝酸钙匣钵的制备方法,其特征在于所述堇青石粉料的堇青石含量≥92wt%;堇青石粉料的粒径为0.15~0.05mm。
4.根据权利要求1所述的堇青石结合六铝酸钙匣钵的制备方法,其特征在于所述塑性黏土为软质黏土或为膨润土。
5.根据权利要求1所述的堇青石结合六铝酸钙匣钵的制备方法,其特征在于所述结合剂为水玻璃或为碱性纸浆废液。
6.一种堇青石结合六铝酸钙匣钵,其特征在所述堇青石结合六铝酸钙匣钵是根据权利要求1~5项中任一项所述堇青石结合六铝酸钙匣钵的制备方法所制备的堇青石结合六铝酸钙匣钵。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810424429.1A CN108658611B (zh) | 2018-05-07 | 2018-05-07 | 一种堇青石结合六铝酸钙匣钵及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810424429.1A CN108658611B (zh) | 2018-05-07 | 2018-05-07 | 一种堇青石结合六铝酸钙匣钵及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108658611A CN108658611A (zh) | 2018-10-16 |
CN108658611B true CN108658611B (zh) | 2021-04-16 |
Family
ID=63778121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810424429.1A Active CN108658611B (zh) | 2018-05-07 | 2018-05-07 | 一种堇青石结合六铝酸钙匣钵及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108658611B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114105630A (zh) * | 2021-12-08 | 2022-03-01 | 湖南仁海科技材料发展有限公司 | 一种透锂长石结合六铝酸钙匣钵及其制备方法 |
CN115353372B (zh) * | 2022-08-19 | 2023-06-23 | 湖南金铠新材料科技股份有限公司 | 一种锂电正极材料烧结用匣钵及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1670733B1 (en) * | 2003-08-25 | 2017-12-13 | Westmoreland Advanced Materials, Inc. | Use of a sprayable refractory composition as refractory lining in the processing of molten aluminium |
CN103408297A (zh) * | 2013-08-26 | 2013-11-27 | 武汉科技大学 | 一种六铝酸钙-莫来石复相材料及其制备方法 |
CN106348773B (zh) * | 2016-08-31 | 2019-01-04 | 长兴盛华耐火材料有限公司 | 一种添加SiAlON-AlN-TiN的抗锂电材料侵蚀耐火坩埚 |
CN106365654B (zh) * | 2016-08-31 | 2018-12-28 | 长兴盛华耐火材料有限公司 | 一种添加ZrN-SiAlON的抗锂电材料侵蚀耐火坩埚 |
CN107382298A (zh) * | 2017-07-19 | 2017-11-24 | 宜兴市锦泰耐火材料有限公司 | 电池材料焙烧用匣钵及其制备方法 |
-
2018
- 2018-05-07 CN CN201810424429.1A patent/CN108658611B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN108658611A (zh) | 2018-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102718512B (zh) | 一种抗热震刚玉-尖晶石质耐火浇注料及其制备方法 | |
CN105254323B (zh) | 一种微孔刚玉‑莫来石陶瓷分离膜支撑体及其制备方法 | |
CN108610024B (zh) | 一种用于锂离子电池正极材料焙烧的匣钵及其制备方法 | |
CN105503209B (zh) | 一种基于焦宝石的莫来石轻质隔热砖及其制备方法 | |
CN108484188B (zh) | 一种用于锂电池正极材料焙烧的碳化硅匣钵及其制备方法 | |
CN105272189A (zh) | 一种微孔莫来石陶瓷分离膜支撑体及其制备方法 | |
CN108658611B (zh) | 一种堇青石结合六铝酸钙匣钵及其制备方法 | |
CN105948712A (zh) | 一种利用电解锰渣制备的陶瓷及其制备方法 | |
CN112028650A (zh) | 一种锂离子电池正极材料用匣钵 | |
CN104987094A (zh) | 一种抗碱性陶瓷涂层材料及其制备方法 | |
CN103531315A (zh) | ±1120kV特高压直流棒形瓷绝缘子制备方法 | |
CN112010661B (zh) | 一种锂电池正极材料用匣钵及其制备方法 | |
CN108017379A (zh) | 一种氧化铝质轻质隔热砖及其制备方法 | |
Jaya et al. | Effect of solid-to-liquid ratios on metakaolin geopolymers | |
CN105777153A (zh) | 一种大尺寸耐火砖的制备方法 | |
CN106365654B (zh) | 一种添加ZrN-SiAlON的抗锂电材料侵蚀耐火坩埚 | |
CN101412631B (zh) | 一种轻质耐火砖 | |
CN101786868B (zh) | 一种免烧耐酸陶瓷的制备方法 | |
CN102875039A (zh) | 用硫酸镁溶液提高氢氧化钠激发矿渣胶凝材料强度的方法 | |
CN108840659A (zh) | 一种耐腐蚀轻质耐火砖及其制备方法 | |
CN108892519A (zh) | 一种耐火材料及其制备方法 | |
CN101314539B (zh) | 免烧耐腐蚀面砖及其制备方法 | |
CN115353372B (zh) | 一种锂电正极材料烧结用匣钵及其制备方法 | |
CN106348773B (zh) | 一种添加SiAlON-AlN-TiN的抗锂电材料侵蚀耐火坩埚 | |
CN108706967A (zh) | 一种镁橄榄石砖及其生产工艺 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20181016 Assignee: JIANGSU GUOHAO REFRACTORY TECHNOLOGY Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2024980008601 Denomination of invention: A cordierite combined with calcium hexaaluminate bowl and its preparation method Granted publication date: 20210416 License type: Common License Record date: 20240705 |
|
EE01 | Entry into force of recordation of patent licensing contract |