Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of mullite whiskers
The invention provides a preparation method and application of mullite whiskers, and the preparation method comprises the following steps: step (1): mixing a high-purity active aluminum-containing compound, active silicon dioxide and aluminum fluoride in proportion by a wet method, grinding by adopting a sand mill mixer, and preparing the fully ground material into spherical particles by adopting a spray drying process to obtain a precursor A; (2) putting the precursor A into a bowl, fully drying, putting the dried material into a furnace, and carrying out high-temperature sintering to obtain a semi-finished product B; and (3) crushing, washing and grading the sintered material to obtain the mullite whisker. The active aluminum-containing compound, the active silicon oxide and the aluminum fluoride are adopted as raw materials, the precursor is prepared through liquid-phase grinding, then the mullite whisker material is prepared through the solid-phase sintering technology, and the method is low in cost, simple in technological process and suitable for large-scale preparation.
本发明提供一种莫来石晶须的制备方法与应用，包括以下步骤：步骤（1）：将将高纯活性含铝化合物、活性二氧化硅以及氟化铝按比例湿法混合，采用砂磨混料机研磨，经充分研磨后的物料采用喷雾干燥工艺制备成球形颗粒，得到前驱体A；步骤（2）：将前驱体A装钵充分干燥，将干燥后的物料装炉，经过高温烧结得到半成品B；步骤（3）：烧结后物料经粉碎，洗涤，分级得到莫来石晶须。本发明采用活性含铝化合物、活性氧化硅和氟化铝为原材料，通过液相研磨制备前驱体，然后采用固相烧结工艺来制备莫来石晶须材料，该方法成本低，工艺流程简单，适合大规模制备。
Preparation method and application of mullite whiskers
The invention provides a preparation method and application of mullite whiskers, and the preparation method comprises the following steps: step (1): mixing a high-purity active aluminum-containing compound, active silicon dioxide and aluminum fluoride in proportion by a wet method, grinding by adopting a sand mill mixer, and preparing the fully ground material into spherical particles by adopting a spray drying process to obtain a precursor A; (2) putting the precursor A into a bowl, fully drying, putting the dried material into a furnace, and carrying out high-temperature sintering to obtain a semi-finished product B; and (3) crushing, washing and grading the sintered material to obtain the mullite whisker. The active aluminum-containing compound, the active silicon oxide and the aluminum fluoride are adopted as raw materials, the precursor is prepared through liquid-phase grinding, then the mullite whisker material is prepared through the solid-phase sintering technology, and the method is low in cost, simple in technological process and suitable for large-scale preparation.
本发明提供一种莫来石晶须的制备方法与应用，包括以下步骤：步骤（1）：将将高纯活性含铝化合物、活性二氧化硅以及氟化铝按比例湿法混合，采用砂磨混料机研磨，经充分研磨后的物料采用喷雾干燥工艺制备成球形颗粒，得到前驱体A；步骤（2）：将前驱体A装钵充分干燥，将干燥后的物料装炉，经过高温烧结得到半成品B；步骤（3）：烧结后物料经粉碎，洗涤，分级得到莫来石晶须。本发明采用活性含铝化合物、活性氧化硅和氟化铝为原材料，通过液相研磨制备前驱体，然后采用固相烧结工艺来制备莫来石晶须材料，该方法成本低，工艺流程简单，适合大规模制备。
Preparation method and application of mullite whiskers
一种莫来石晶须的制备方法与应用
ZHANG BAOPING (Autor:in) / YU WEI (Autor:in)
15.08.2023
Patent
Elektronische Ressource
Chinesisch
Preparation of mullite whiskers from topaz decomposition
| British Library Online Contents | 2004
| Europäisches Patentamt | 2018
Preparation and Morphology of Mullite Whiskers by Sol-Gel Method
| British Library Online Contents | 2007
Mullite whiskers derived from coal fly ash
| British Library Online Contents | 2007
Preparation method for synthesizing mullite whiskers through adopting borides as additives
| Europäisches Patentamt | 2015