Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mullite prepared from coal gangue and preparation method thereof
The invention belongs to the technical field of refractory materials, and discloses mullite prepared from coal gangue and a preparation method of the mullite. The invention provides a method for preparing mullite from coal gangue, and mullite with high compressive strength and small heat conductivity coefficient is prepared through the synergistic effect of coal gangue, alunite, dolomite and barium sulfate. The compressive strength of the obtained mullite is remarkably improved and reaches 30 MPa or above, and the obtained mullite has a low heat conductivity coefficient, can be used as a refractory material with excellent performance, and provides a foundation for developing the refractory material with excellent performance. Meanwhile, the preparation technology is simple, a large number of chemical auxiliaries do not need to be added in the preparation process, cost is reduced, and resources are saved.
本发明属于耐火材料技术领域，本发明公开了一种利用煤矸石制备的莫来石及其制备方法。本发明提供了一种利用煤矸石制备莫来石的方法，通过煤矸石、明矾石、白云石以及硫酸钡的协同作用，制备得到了抗压强度高且导热系数小的莫来石。本发明所得莫来石的抗压强度得到了显著的提升，其抗压强度达到了30MPa以上，且本发明所得莫来石具有较低的导热系数，可作为性能优异的耐火材料使用，为发展性能优异的耐火材料提供了基础。同时，本发明所述制备工艺简单，制备过程中无须加入大量的化学助剂，降低了成本并且节约了资源。
Mullite prepared from coal gangue and preparation method thereof
The invention belongs to the technical field of refractory materials, and discloses mullite prepared from coal gangue and a preparation method of the mullite. The invention provides a method for preparing mullite from coal gangue, and mullite with high compressive strength and small heat conductivity coefficient is prepared through the synergistic effect of coal gangue, alunite, dolomite and barium sulfate. The compressive strength of the obtained mullite is remarkably improved and reaches 30 MPa or above, and the obtained mullite has a low heat conductivity coefficient, can be used as a refractory material with excellent performance, and provides a foundation for developing the refractory material with excellent performance. Meanwhile, the preparation technology is simple, a large number of chemical auxiliaries do not need to be added in the preparation process, cost is reduced, and resources are saved.
本发明属于耐火材料技术领域，本发明公开了一种利用煤矸石制备的莫来石及其制备方法。本发明提供了一种利用煤矸石制备莫来石的方法，通过煤矸石、明矾石、白云石以及硫酸钡的协同作用，制备得到了抗压强度高且导热系数小的莫来石。本发明所得莫来石的抗压强度得到了显著的提升，其抗压强度达到了30MPa以上，且本发明所得莫来石具有较低的导热系数，可作为性能优异的耐火材料使用，为发展性能优异的耐火材料提供了基础。同时，本发明所述制备工艺简单，制备过程中无须加入大量的化学助剂，降低了成本并且节约了资源。
Mullite prepared from coal gangue and preparation method thereof
一种利用煤矸石制备的莫来石及其制备方法
LI JUNXIU (Autor:in) / ZHU XINGYU (Autor:in)
16.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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