CN110668797A - 过滤陶瓷载体及制备方法 - Google Patents

过滤陶瓷载体及制备方法 Download PDF

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CN110668797A
CN110668797A CN201911066723.0A CN201911066723A CN110668797A CN 110668797 A CN110668797 A CN 110668797A CN 201911066723 A CN201911066723 A CN 201911066723A CN 110668797 A CN110668797 A CN 110668797A
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魏绪春
魏东东
廖新
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Jiangxi Nine Ridge New Energy Co Ltd
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Abstract

本发明公开一种过滤陶瓷载体及制备方法，其中，过滤陶瓷载体其原料按质量份数计包括如下组分：15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂。在本发明中，通过控制焙烧温度为1250℃～1400℃，从而提高α‑Al2O3含量，有助于提高该陶瓷砖的断裂模数，并增加过滤陶瓷载体刚度；通过控制各种原料的配比，有利于提高过滤陶瓷载体中堇青石相的含量，提高气孔率和形成三维连通的气孔，获得良好过滤性能。增加煅烧三氧化二铝的含量，有利于多孔过滤陶瓷砖中形成少量的刚玉相。

Description

过滤陶瓷载体及制备方法
技术领域
本发明涉及陶瓷制造技术领域，具体涉及一种过滤陶瓷载体及制备方法。
背景技术
净化装置的结构包括载体(即多孔陶瓷)和负载在载体上的催化剂，载体的孔隙越多越均匀，则载体的有效吸附表面积越大，净化能力越强。目前的载体的成孔剂一般为有机成孔剂，如天然纤维、高分子聚合物和有机酸等，有机成孔剂在远低于载体烧结温度下分解，分解后留下孔隙，这些孔隙，尤其是一些小孔，容易在后面的高温烧结成型时封闭，造成载体的孔隙率低，催化能力差。
因此有必要提供一种新型的过滤陶瓷载体，以解决上述技术问题。
发明内容
本发明的主要目的是提供一种过滤陶瓷载体及制备方法，以解决现有锂云母焙烧浸注渣无法有效利用的技术问题。
为实现上述目的，本发明提出的过滤陶瓷载体，其原料按质量份数计包括如下组分：
15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂。
优选地，按质量份数计，所述陶瓷泥包括如下组分：
65～75质量份的氧化硅、8～12质量份的三氧化二铝、0.05～0.30质量份的三氧化二铁、7.5～10.5质量份的氧化钙、1.5～3质量份的氧化钠和1～2质量份的五氧化二磷。
优选地，所述含锂添加剂为锂辉石。
本发明还提供了一种过滤陶瓷载体的制备方法，包括如下步骤：
步骤一、取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粉状原料；
步骤二、将所述步骤一中生产的粉状原料焙烧，吸附处理，制成所述权利要求1至3中任一项所述的过滤陶瓷载体。
优选地，所述步骤一中包括：
取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粒径为50～200目的粉状原料。
优选地，所述步骤二包括：
将步骤一中生产的粉状原料在1250℃～1400℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
优选地，所述含锂添加剂为锂辉石。
本发明提供的过滤陶瓷载体，通过控制焙烧温度为1250℃～1400℃，从而提高α-Al2O3含量，有助于提高该陶瓷泥的断裂模数，并增加过滤陶瓷载体刚度；通过控制各种原料的配比，有利于提高过滤陶瓷载体中堇青石相的含量，提高气孔率和形成三维连通的气孔，获得良好过滤性能。增加煅烧三氧化二铝的含量，有利于多孔过滤陶瓷砖中形成少量的刚玉相。
附图说明
图1为本发明一实施例的过滤陶瓷载体的制备方法的流程示意图。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
另外，本发明各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
除非另有特别说明，本发明中用到的各种原材料、试剂、仪器和设备等均可通过市场购买得到或者可通过现有方法制备得到。
本发明提供了一种过滤陶瓷载体，其原料按质量份数计包括如下组分：
15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂。
具体地，陶瓷泥为高岭土、钾长石、钠长石、石英、羟基磷酸钙、滑石等组成，陶瓷泥组分包括：65～75质量份的氧化硅、8～12质量份的三氧化二铝；0.05～0.30质量份的三氧化二铁、7.5～10.5质量份的氧化钙、1.5～3质量份的氧化钠和1～2质量份的五氧化二磷。所述含锂添加剂为锂辉石。
本发明还提供了一种过滤陶瓷载体的制备方法，包括如下步骤：
步骤S1、取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粉状原料；
具体地，取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粒径为50～200目的粉状原料。所述含锂添加剂为锂辉石。碳酸锂可以提供氧化锂，氧化锂具有很强的助熔能力，对于陶瓷起到助熔降温的作用；同时碳酸锂产生二氧化碳可促进孔隙的产生。
在本实施例中，三氧化二铝为纳米级三氧化二铝，从而可显著提高过滤陶瓷载体的抗弯强度和断裂韧性，降低晶粒度。
步骤S2、将步骤S1中生产的粉状原料焙烧，吸附处理，制成上述的过滤陶瓷载体。
具体地，将步骤S1中生产的粉状原料在1250℃～1400℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
在本发明中，通过控制焙烧温度为1250℃～1400℃，从而提高α-Al2O3含量，有助于提高该陶瓷泥的断裂模数，并增加过滤陶瓷载体刚度；通过控制各种原料的配比，有利于提高过滤陶瓷载体中堇青石相的含量，提高气孔率和形成三维连通的气孔，获得良好过滤性能。增加煅烧三氧化二铝的含量，有利于多孔过滤陶瓷砖中形成少量的刚玉相。
以下通过具体实施例对本发明提出的过滤陶瓷载体进行具体说明，其中，陶瓷泥为高岭土、钾长石、钠长石、石英、羟基磷酸钙、滑石等组成，其中：
实施例1
取20g的陶瓷泥、77g三氧化二铝、3g锂辉石混合，研磨成粒径为100目的粉状原料；
将粉状原料1300℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
实施例2
取15g的陶瓷泥、70g三氧化二铝、2g锂辉石混合，研磨成粒径为50目的粉状原料；
将粉状原料1250℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
实施例3
取25g的陶瓷泥、85g三氧化二铝、5g锂辉石混合，研磨成粒径为200目的粉状原料；
将粉状原料1400℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
实施例4
取17g的陶瓷泥、80g三氧化二铝、5g锂辉石混合，研磨成粒径为150目的粉状原料；
将粉状原料1300℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
实施例5
取20g的陶瓷泥、80g三氧化二铝、4g锂辉石混合，研磨成粒径为200目的粉状原料；
将粉状原料1300℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
采用JC/T686-1998对实施例1至5中制备的过滤陶瓷载体进行测试，测试数据如下：
Figure BDA0002259601690000051
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (7)

1.一种过滤陶瓷载体，其特征在于，其原料按质量份数计包括如下组分：
15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂。
2.根据权利要求1所述的过滤陶瓷载体，其特征在于，按质量份数计，所述陶瓷泥包括如下组分：
65～75质量份的氧化硅、8～12质量份的三氧化二铝、0.05～0.30质量份的三氧化二铁、7.5～10.5质量份的氧化钙、1.5～3质量份的氧化钠和1～2质量份的五氧化二磷。
3.根据权利要求1所述的过滤陶瓷载体，其特征在于，所述含锂添加剂为锂辉石。
4.一种过滤陶瓷载体的制备方法，其特征在于，包括如下步骤：
步骤一、取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粉状原料；
步骤二、将所述步骤一中生产的粉状原料焙烧，吸附处理，制成所述权利要求1至3中任一项所述的过滤陶瓷载体。
5.根据权利要求4所述的过滤陶瓷载体的制备方法，其特征在于，所述步骤一中包括：
取15～25质量份的陶瓷泥、70～85质量份的三氧化二铝、2～5质量份的含锂添加剂混合，研磨成粒径为50～200目的粉状原料。
6.根据权利要求4所述的过滤陶瓷载体的制备方法，其特征在于，所述步骤二包括：
将步骤一中生产的粉状原料在1250℃～1400℃焙烧，放入超纯水中冷却，加入阴离子吸附树脂吸附25min后，超纯水清洗至清洗液中性，干燥，制成所述过滤陶瓷载体。
7.根据权利要求4所述的过滤陶瓷载体的制备方法，其特征在于，所述含锂添加剂为锂辉石。
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