CN108727054A - 一种薄壁大规格蜂窝陶瓷载体及其制备方法 - Google Patents
一种薄壁大规格蜂窝陶瓷载体及其制备方法 Download PDFInfo
- Publication number
- CN108727054A CN108727054A CN201810360096.0A CN201810360096A CN108727054A CN 108727054 A CN108727054 A CN 108727054A CN 201810360096 A CN201810360096 A CN 201810360096A CN 108727054 A CN108727054 A CN 108727054A
- Authority
- CN
- China
- Prior art keywords
- parts
- thin
- honeycomb ceramic
- walled
- big specification
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000004411 aluminium Substances 0.000 claims abstract description 53
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003595 mist Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 24
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 19
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims abstract description 18
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims abstract description 18
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 17
- 239000010452 phosphate Substances 0.000 claims abstract description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 12
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- 235000011187 glycerol Nutrition 0.000 claims abstract description 12
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 12
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 12
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 12
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 230000032683 aging Effects 0.000 claims abstract description 6
- 230000035882 stress Effects 0.000 claims abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 33
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 22
- 239000011805 ball Substances 0.000 claims description 17
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 11
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- 239000010453 quartz Substances 0.000 claims description 11
- 239000004408 titanium dioxide Substances 0.000 claims description 11
- 239000013067 intermediate product Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000003837 high-temperature calcination Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000001404 mediated effect Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 238000004898 kneading Methods 0.000 abstract 1
- 241000264877 Hippospongia communis Species 0.000 description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0006—Honeycomb structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- C04B35/16—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 silicates other than clay
- C04B35/20—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 silicates other than clay rich in magnesium oxide, e.g. forsterite
-
- 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
- C04B35/46—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 titanium oxides or titanates
- C04B35/462—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 titanium oxides or titanates based on titanates
- C04B35/478—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 titanium oxides or titanates based on titanates based on aluminium titanates
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- 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
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/02—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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Catalysts (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
本发明公开了一种薄壁大规格蜂窝陶瓷载体及其制备方法,其原料包括高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉等;制备方法包括:将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈混合,搅拌均匀,得到混合料;将丙三醇、羟丙基甲基纤维素加入到水中,得到添加剂溶液;将混合料与添加剂溶液混合,搅拌均匀后经过捏合、陈腐、真空练泥得到泥料;将泥料通过模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体,经干燥、焙烧得到薄壁大规格蜂窝载体。本发明提供的薄壁大规格蜂窝陶瓷载体的圆面直径可以达到300‑350mm,孔密度达到300‑400孔/平方英寸,适宜大排量柴油车尾气处理的需要。
Description
技术领域
本发明涉及蜂窝陶瓷载体制备领域,尤其涉及一种薄壁大规格蜂窝陶瓷载体及其制备方法。
背景技术
随着工业化水平的不断提升,机动车尾气排放污染在城市大气污染的分担率越来越高,机动车尾气控制技术对于节能减排具有重大社会意义。整体式蜂窝是一种薄壁、平行多孔的圆柱体,它的比表面积大,热稳定性好,耐高温,不易破碎。随着蜂窝陶瓷载体在催化净化行业的应用的扩展,以及蜂窝陶瓷作为催化剂载体所具有的不可比拟的优越性,蜂窝陶瓷已经深入到了大气污染防治的各个领域,特别是各类发动机尾气的治理方面更是具有不可替代的地位。
随着环保的不断深入,发动机尾气的治理要求也从当初的小型汽油机车,逐步的发展到了现在的各类大排量的柴油机车,甚至是大型的海上船舶。当所需治理的发动机的排量越来越大时,在尾气催化进化中的蜂窝陶瓷载体的截面积和体积也要求越来越大。
随着汽车尾气排放法规的不断严格,汽车尾气净化用蜂窝陶瓷载体也不断地向高孔密度化、格子壁薄壁化方向发展,当采用现有蜂窝陶瓷载体配方相同的泥料来成型大规格薄壁陶瓷载体时,由于泥料通道变得狭窄很多,泥料在模具通道中所需要的挤出力会大大增加,同时泥料还会出现跟不上的情况,如此将会导致两方面的问题:一方面会使模具所承受的压力大大增加,加剧模具的损坏,甚至超过模具所能承受压力的范围;另一方面,这种泥料跟不上的状态会使得成型出来的产品出现缺格子壁或者根本无法成型出连续的合格产品。
发明内容
基于背景技术存在的技术问题,本发明提出了一种薄壁大规格蜂窝陶瓷载体及其制备方法,本发明提供的薄壁大规格蜂窝陶瓷载体的圆面直径可以达到300-350mm,孔密度达到300-400孔/平方英寸,适宜大排量柴油车尾气处理的需要。
本发明提供了一种薄壁大规格蜂窝陶瓷载体,其原料按重量份包括:高岭土20-25份、氧化铝17-22份、二氧化硅5-8份、滑石粉25-30份、钛酸铝微粉1-2份、磷酸锆0.5-1.5份、磷酸铈0.5-1.5份、羟丙基甲基纤维素0.5-1.5份、丙三醇4-5份、水25-30份。
优选地,高岭土的粒径为2-4μm,氧化铝的粒径为3-6μm,二氧化硅的粒径为4-6μm,滑石粉的粒径为8-10μm,钛酸铝微粉的粒径为0.3-0.6μm,磷酸锆的粒径为1-5μm,磷酸铈的粒径为1-5μm。
优选地,钛酸铝微粉的原料按重量份包括:金红石35-40份、氧化铝40-45份、石英5-8份、氧化钙1-2份、二氧化钛0.6-1.5份、氧化镁2-4份。
优选地,钛酸铝微粉的制备方法包括以下步骤:
步骤一:将金红石、氧化铝、石英、氧化钙、二氧化钛、氧化镁混合,放入球磨机中研磨14-18小时后,干燥至含水量小于1%,得到中间品;
步骤二、将步骤一中得到的中间品在1200-1300℃高温煅烧,并在此温度下保温5-7小时,得到钛酸铝块体;
步骤三、将步骤二中得到的钛酸铝块体研磨至0.3-0.6μm,得到钛酸铝微粉。
优选地,钛酸铝微粉的制备方法步骤一中,在球磨机中研磨时,球、料和水的体积比为5-6:2.5-3:1,且总体积为球磨机有效体积的40%-50%。
优选地,钛酸铝微粉的制备方法步骤一中,干燥的方法为微波干燥。
本发明还提供了该种薄壁大规格蜂窝陶瓷载体的制备方法,包括以下步骤:
S1、将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈混合,搅拌均匀,得到混合料;
S2、将丙三醇加入到水中,搅拌均匀后,加入羟丙基甲基纤维素,混合均匀得到添加剂溶液;
S3、将S1中得到的混合料与S2中得到的添加剂溶液混合,搅拌均匀后经过机械捏合、陈腐、真空练泥得到泥料;
S4、将S3中得到的泥料通过蜂窝孔钢模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体;
S5、将S4中得到的圆柱形蜂窝陶瓷湿坯体微波干燥至含水量小于2%,焙烧得到薄壁大规格蜂窝载体。
优选地,S3中陈腐的温度为20-25℃,时间为45-50h。
优选地,圆柱形蜂窝陶瓷湿坯体的圆柱形圆面直径为300-350mm,圆柱切割的高度为120-160mm,孔密度为300-400孔/平方英寸。
优选地,S5中焙烧的方法为:以13-18℃/min升温至1100℃,然后以5-10℃/min升温至1350-1400℃,保温4-7h,自然冷却至室温。
本发明提供的薄壁大规格蜂窝陶瓷载体具有基于高耐热性和低热膨胀性的耐热冲击性,而且具有高机械强度和抗热分解性,适宜用于净化各类发动机尾气的催化剂的载体,由于其又是大规格产品,能更好的适应大排量柴油车尾气处理的需要。
本发明通过提高泥料的流动性,使成型压力低,可有效降低成型设备和模具的磨损程度,制得圆面直径可以达到300-350mm,孔密度达到300-400孔/平方英寸的薄壁大规格蜂窝载体。
具体实施方式
下面,通过具体实施例对本发明的技术方案进行详细说明。
实施例1
本发明提供了一种薄壁大规格蜂窝陶瓷载体,其原料按重量份包括:高岭土20.4份、氧化铝21.7份、二氧化硅5.2份、滑石粉29.6份、钛酸铝微粉1.6份、磷酸锆0.7份、磷酸铈1.2份、羟丙基甲基纤维素1.1份、丙三醇4.7份、水26.9份。
其中,高岭土的粒径为2μm,氧化铝的粒径为7μm,二氧化硅的粒径为5μm,滑石粉的粒径为10μm,钛酸铝微粉的粒径为0.4μm,磷酸锆的粒径为3μm,磷酸铈的粒径为2μm。
实施例2
本发明提供了一种薄壁大规格蜂窝陶瓷载体,其原料按重量份包括:高岭土22.1份、氧化铝20.5份、二氧化硅7.8份、滑石粉25.4份、钛酸铝微粉1.9份、磷酸锆1.1份、磷酸铈0.9份、羟丙基甲基纤维素1.3份、丙三醇4.4份、水28.2份。
其中,高岭土的粒径为3μm,氧化铝的粒径为6μm,二氧化硅的粒径为6μm,滑石粉的粒径为9μm,钛酸铝微粉的粒径为0.5μm,磷酸锆的粒径为2μm,磷酸铈的粒径为4μm。
实施例3
本发明提供了一种薄壁大规格蜂窝陶瓷载体,其原料按重量份包括:高岭土23.7份、氧化铝18.9份、二氧化硅6.1份、滑石粉26.7份、钛酸铝微粉1.2份、磷酸锆1.3份、磷酸铈0.6份、羟丙基甲基纤维素0.6份、丙三醇4.8份、水25.5份。
其中,高岭土的粒径为4μm,氧化铝的粒径为8μm,二氧化硅的粒径为4μm,滑石粉的粒径为8μm,钛酸铝微粉的粒径为0.3μm,磷酸锆的粒径为4μm,磷酸铈的粒径为5μm。
实施例4
本发明提供了一种薄壁大规格蜂窝陶瓷载体,其原料按重量份包括:高岭土24.8份、氧化铝17.3份、二氧化硅7.2份、滑石粉28.2份、钛酸铝微粉1.4份、磷酸锆0.9份、磷酸铈1.4份、羟丙基甲基纤维素0.8份、丙三醇4.3份、水29.6份。
其中,高岭土的粒径为3μm,氧化铝的粒径为8μm,二氧化硅的粒径为5μm,滑石粉的粒径为8μm,钛酸铝微粉的粒径为0.6μm,磷酸锆的粒径为3μm,磷酸铈的粒径为4μm。
其中,钛酸铝微粉的原料按重量份包括:金红石37.1份、氧化铝40.4份、石英7.8份、氧化钙1.5份、二氧化钛0.7份、氧化镁3.3份。
钛酸铝微粉的制备方法包括以下步骤:
步骤一:将金红石、氧化铝、石英、氧化钙、二氧化钛、氧化镁混合,放入球磨机中研磨16小时,研磨时,球、料和水的体积比为5.6:2.8:1,且总体积为球磨机有效体积的42%,在微波干燥至含水量为0.8%,得到中间品;
步骤二、将步骤一中得到的中间品在1275℃高温煅烧,并在此温度下保温6.4小时,得到钛酸铝块体;
步骤三、将步骤二中得到的钛酸铝块体研磨至0.6μm,得到钛酸铝微粉。
实施例5
实施例4的薄壁大规格蜂窝陶瓷载体,其中,钛酸铝微粉的原料按重量份还可以包括:金红石38.4份、氧化铝41.9份、石英5.3份、氧化钙1.6份、二氧化钛1.3份、氧化镁3.7份。
实施例6
实施例4的薄壁大规格蜂窝陶瓷载体,其中,钛酸铝微粉的原料按重量份还可以包括:金红石39.7份、氧化铝43.6份、石英6.2份、氧化钙1.2份、二氧化钛0.9份、氧化镁2-4份。
实施例7
实施例4的薄壁大规格蜂窝陶瓷载体,其中,钛酸铝微粉的原料按重量份还可以包括:金红石35.3份、氧化铝44.7份、石英7.1份、氧化钙1.4份、二氧化钛1.1份、氧化镁2.8份。
实施例8
实施例4的薄壁大规格蜂窝陶瓷载体,其中,钛酸铝微粉的制备方法还可以包括以下步骤:
步骤一:将金红石、氧化铝、石英、氧化钙、二氧化钛、氧化镁混合,放入球磨机中研磨17小时,研磨时,球、料和水的体积比为5.3:2.7:1,且总体积为球磨机有效体积的46%,在微波干燥至含水量为0.7%,得到中间品;
步骤二、将步骤一中得到的中间品在1240℃高温煅烧,并在此温度下保温5.5小时,得到钛酸铝块体;
步骤三、将步骤二中得到的钛酸铝块体研磨至0.6μm,得到钛酸铝微粉。
实施例9
实施例4的薄壁大规格蜂窝陶瓷载体,其中,钛酸铝微粉的制备方法还可以包括以下步骤:
步骤一:将金红石、氧化铝、石英、氧化钙、二氧化钛、氧化镁混合,放入球磨机中研磨15小时,研磨时,球、料和水的体积比为5.8:2.6:1,且总体积为球磨机有效体积的49%,在微波干燥至含水量为0.9%,得到中间品;
步骤二、将步骤一中得到的中间品在1290℃高温煅烧,并在此温度下保温6小时,得到钛酸铝块体;
步骤三、将步骤二中得到的钛酸铝块体研磨至0.6μm,得到钛酸铝微粉。
实施例10
本发明公开了一种薄壁大规格蜂窝陶瓷载体的制备方法,包括以下步骤:
S1、按照实施例1的原料配方称取各种原料,备用;将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈放入无动力混合机中,搅拌均匀,得到混合料;
S2、将丙三醇加入到水中,搅拌均匀后,加入羟丙基甲基纤维素,混合均匀得到添加剂溶液;
S3、将S1中得到的混合料与S2中得到的添加剂溶液混合,搅拌均匀后经过机械捏合、陈腐、真空练泥得到泥料,其中,陈腐的温度为23℃,时间为48h;
S4、将S3中得到的泥料通过蜂窝孔钢模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体,圆柱形蜂窝陶瓷湿坯体的圆柱形圆面直径为325mm,圆柱切割的高度为130mm,孔密度为350孔/平方英寸;
S5、将S4中得到的圆柱形蜂窝陶瓷湿坯体微波干燥至含水量为1.8%,焙烧得到薄壁大规格蜂窝载体,焙烧的方法为:以15℃/min升温至1100℃,然后以8℃/min升温至1360℃,保温5.2h,自然冷却至室温。
实施例11
本发明公开了一种薄壁大规格蜂窝陶瓷载体的制备方法,包括以下步骤:
S1、按照实施例4的原料配方称取各种原料,备用;将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈放入无动力混合机中,搅拌均匀,得到混合料;
S2、将丙三醇加入到水中,搅拌均匀后,加入羟丙基甲基纤维素,混合均匀得到添加剂溶液;
S3、将S1中得到的混合料与S2中得到的添加剂溶液混合,搅拌均匀后经过机械捏合、陈腐、真空练泥得到泥料,其中,陈腐的温度为21.6℃,时间为47h;
S4、将S3中得到的泥料通过蜂窝孔钢模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体,圆柱形蜂窝陶瓷湿坯体的圆柱形圆面直径为340mm,圆柱切割的高度为155mm,孔密度为390孔/平方英寸;
S5、将S4中得到的圆柱形蜂窝陶瓷湿坯体微波干燥至含水量为1.5%,时间为3.4小时,焙烧得到薄壁大规格蜂窝载体,焙烧的方法为:以14℃/min升温至1100℃,然后以9℃/min升温至1385℃,保温6.8h,自然冷却至室温。
实施例12
本发明公开了一种薄壁大规格蜂窝陶瓷载体的制备方法,包括以下步骤:
S1、按照实施例4的原料配方称取各种原料,备用;将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈放入无动力混合机中,搅拌均匀,得到混合料;
S2、将丙三醇加入到水中,搅拌均匀后,加入羟丙基甲基纤维素,混合均匀得到添加剂溶液;
S3、将S1中得到的混合料与S2中得到的添加剂溶液混合,搅拌均匀后经过机械捏合、陈腐、真空练泥得到泥料,其中,陈腐的温度为24.5℃,时间为46h;
S4、将S3中得到的泥料通过蜂窝孔钢模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体,圆柱形蜂窝陶瓷湿坯体的圆柱形圆面直径为310mm,圆柱切割的高度为145mm,孔密度为330孔/平方英寸;
S5、将S4中得到的圆柱形蜂窝陶瓷湿坯体微波干燥至含水量为1.7,时间为3.8小时,焙烧得到薄壁大规格蜂窝载体,焙烧的方法为:以17℃/min升温至1100℃,然后以6℃/min升温至1398℃,保温4.3h,自然冷却至室温。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (10)
1.一种薄壁大规格蜂窝陶瓷载体,其特征在于,其原料按重量份包括:高岭土20-25份、氧化铝17-22份、二氧化硅5-8份、滑石粉25-30份、钛酸铝微粉1-2份、磷酸锆0.5-1.5份、磷酸铈0.5-1.5份、羟丙基甲基纤维素0.5-1.5份、丙三醇4-5份、水25-30份。
2.根据权利要求1所述的一种薄壁大规格蜂窝陶瓷载体,其特征在于,所述高岭土的粒径为2-4μm,氧化铝的粒径为3-6μm,二氧化硅的粒径为4-6μm,滑石粉的粒径为10-10μm,钛酸铝微粉的粒径为0.3-0.6μm,磷酸锆的粒径为1-5μm,磷酸铈的粒径为1-5μm。
3.根据权利要求1所述的一种薄壁大规格蜂窝陶瓷载体,其特征在于,所述钛酸铝微粉的原料按重量份包括:金红石35-40份、氧化铝40-45份、石英5-8份、氧化钙1-2份、二氧化钛0.6-1.5份、氧化镁2-4份。
4.根据权利要求3所述的一种薄壁大规格蜂窝陶瓷载体,其特征在于,所述钛酸铝微粉的制备方法包括以下步骤:
步骤一:将金红石、氧化铝、石英、氧化钙、二氧化钛、氧化镁混合,放入球磨机中研磨14-18小时后,干燥至含水量小于1%,得到中间品;
步骤二、将步骤一中得到的中间品在1200-1300℃高温煅烧,并在此温度下保温5-7小时,得到钛酸铝块体;
步骤三、将步骤二中得到的钛酸铝块体研磨至0.3-0.6μm,得到钛酸铝微粉。
5.根据权利要求4所述的一种薄壁大规格蜂窝陶瓷载体,其特征在于,所述钛酸铝微粉的制备方法步骤一中,在球磨机中研磨时,球、料和水的体积比为5-6:2.5-3:1,且总体积为球磨机有效体积的40%-50%。
6.根据权利要求4所述的一种薄壁大规格蜂窝陶瓷载体,其特征在于,所述钛酸铝微粉的制备方法步骤一中,干燥的方法为微波干燥。
7.一种薄壁大规格蜂窝陶瓷载体的制备方法,其特征在于,包括以下步骤:
S1、将高岭土、氧化铝、二氧化硅、滑石粉、钛酸铝微粉、磷酸锆、磷酸铈混合,搅拌均匀,得到混合料;
S2、将丙三醇加入到水中,搅拌均匀后,加入羟丙基甲基纤维素,混合均匀得到添加剂溶液;
S3、将S1中得到的混合料与S2中得到的添加剂溶液混合,搅拌均匀后经过机械捏合、陈腐、真空练泥得到泥料;
S4、将S3中得到的泥料通过蜂窝孔钢模具在压力下挤出,得到圆柱形蜂窝陶瓷湿坯体;
S5、将S4中得到的圆柱形蜂窝陶瓷湿坯体微波干燥至含水量小于2%,焙烧得到薄壁大规格蜂窝载体。
8.根据权利要求7所述的一种薄壁大规格蜂窝陶瓷载体的制备方法,其特征在于,所述S3中陈腐的温度为20-25℃,时间为45-50h。
9.根据权利要求7所述的一种薄壁大规格蜂窝陶瓷载体的制备方法,其特征在于,所述圆柱形蜂窝陶瓷湿坯体的圆柱形圆面直径为300-350mm,圆柱切割的高度为120-160mm,孔密度为300-400孔/平方英寸。
10.根据权利要求7所述的一种薄壁大规格蜂窝陶瓷载体的制备方法,其特征在于,所述S5中焙烧的方法为:以13-18℃/min升温至1100℃,然后以5-10℃/min升温至1350-1400℃,保温6-8h,自然冷却至室温。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810360096.0A CN108727054A (zh) | 2018-04-20 | 2018-04-20 | 一种薄壁大规格蜂窝陶瓷载体及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810360096.0A CN108727054A (zh) | 2018-04-20 | 2018-04-20 | 一种薄壁大规格蜂窝陶瓷载体及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108727054A true CN108727054A (zh) | 2018-11-02 |
Family
ID=63939152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810360096.0A Pending CN108727054A (zh) | 2018-04-20 | 2018-04-20 | 一种薄壁大规格蜂窝陶瓷载体及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108727054A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111548135A (zh) * | 2020-05-23 | 2020-08-18 | 湖南德腾环保科技有限公司 | 一种蜂窝陶瓷载体及其制备方法与应用 |
CN114479766A (zh) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | 一种定型相变储能材料及其制备方法 |
CN114671679A (zh) * | 2022-04-11 | 2022-06-28 | 武汉科技大学 | 一种焦磷酸锆复相陶瓷材料及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101495425A (zh) * | 2006-07-14 | 2009-07-29 | 康宁股份有限公司 | 用于生产钛酸铝陶瓷壁流过滤器的堵塞材料 |
CN102046565A (zh) * | 2008-04-02 | 2011-05-04 | 康宁股份有限公司 | 使用蛋白质材料制造陶瓷制品的方法 |
CN106045551A (zh) * | 2016-05-24 | 2016-10-26 | 南京柯瑞特种陶瓷股份有限公司 | 一种大直径薄壁蜂窝陶瓷载体制备方法 |
-
2018
- 2018-04-20 CN CN201810360096.0A patent/CN108727054A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101495425A (zh) * | 2006-07-14 | 2009-07-29 | 康宁股份有限公司 | 用于生产钛酸铝陶瓷壁流过滤器的堵塞材料 |
CN102046565A (zh) * | 2008-04-02 | 2011-05-04 | 康宁股份有限公司 | 使用蛋白质材料制造陶瓷制品的方法 |
CN106045551A (zh) * | 2016-05-24 | 2016-10-26 | 南京柯瑞特种陶瓷股份有限公司 | 一种大直径薄壁蜂窝陶瓷载体制备方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111548135A (zh) * | 2020-05-23 | 2020-08-18 | 湖南德腾环保科技有限公司 | 一种蜂窝陶瓷载体及其制备方法与应用 |
CN114479766A (zh) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | 一种定型相变储能材料及其制备方法 |
CN114671679A (zh) * | 2022-04-11 | 2022-06-28 | 武汉科技大学 | 一种焦磷酸锆复相陶瓷材料及其制备方法 |
CN114671679B (zh) * | 2022-04-11 | 2023-04-18 | 武汉科技大学 | 一种焦磷酸锆复相陶瓷材料及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6582796B1 (en) | Monolithic honeycomb structure made of porous ceramic and use as a particle filter | |
JP5372494B2 (ja) | ハニカム構造体の製造方法 | |
US8092740B2 (en) | Method of manufacturing a porous material | |
CN108727054A (zh) | 一种薄壁大规格蜂窝陶瓷载体及其制备方法 | |
CN101759430B (zh) | 一种制备多孔莫来石的方法 | |
JP2981034B2 (ja) | セラミックハニカム構造体の焼成方法 | |
ZA200406908B (en) | Strontium feldspar aluminum titanate for high temperature applications | |
JPS605545B2 (ja) | 低膨脹セラミックスおよびその製法 | |
JP4222600B2 (ja) | セラミックハニカム構造体の焼成方法 | |
JP4750343B2 (ja) | 多孔質ハニカム構造体の製造方法、及びハニカム成形体 | |
JPWO2005090262A1 (ja) | 多孔質セラミック構造体の製造方法 | |
WO2007015495A1 (ja) | セラミックハニカム構造体の製造方法 | |
JP4311609B2 (ja) | 多孔質セラミックス体の製造方法 | |
JPH06182228A (ja) | 触媒担体の製造方法 | |
CN111393155A (zh) | 一种薄壁大孔径的堇青石蜂窝陶瓷载体及其制备方法 | |
JPH10501170A (ja) | チタニアを基材とした触媒担体 | |
JP2007045686A (ja) | 多孔質セラミックス構造体の製造方法 | |
JPWO2006006667A1 (ja) | 多孔質ハニカム構造体の製造方法 | |
CN105924202B (zh) | 一种柴油机尾气后处理用scr催化剂载体的制备技术 | |
JP4455786B2 (ja) | 多孔質材料の製造方法及びこれに用いる中空状顆粒の製造方法 | |
JP5518327B2 (ja) | 炭化珪素質多孔体及びその製造方法 | |
CN116104612B (zh) | 薄壁、窄微孔分布堇青石柴油颗粒过滤器及其制备方法 | |
CN106268334A (zh) | 一种陶瓷分离膜元件及其制备方法 | |
JP6284002B2 (ja) | セラミックハニカム構造体の製造方法 | |
JP2002234780A (ja) | 多孔質セラミックハニカム構造体の製造方法 |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |