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Preparation method of fused mullite containing titanium carbonitride solid solution
The invention discloses a preparation method of fused mullite containing a titanium carbonitride solid solution, and belongs to the technical field of refractory materials. The fused mullite is prepared from medium-low-grade alumina in an electric arc furnace through an electric melting method, wherein the content of aluminum oxide in the medium-low-grade alumina is 45%-60%, and the content of titanium dioxide is generally smaller than 8%; a titanium carbonitride solid solution is formed in the electric melting process and dissolved in the mullite in a solid mode to obtain the mullite refractory raw material. The mullite prepared by the method forms acicular crystals, is good in crystal structure, easy to break and low in raw material price, and realizes comprehensive utilization of mediumand low-grade alumina; the titanium carbonitride solid solution formed in the electric melting process is a non-oxide ceramic material with excellent performance, so that the method is beneficial toimprovement of subsequent mullite product performance.
一种含碳氮化钛固溶体的电熔莫来石制备方法，属于耐火材料技术领域。本发明将中低品位的矾土在电弧炉中通过电熔法制备电熔莫来石，中低品位矾土中氧化铝含量为45%~60%，二氧化钛的含量通常＜8%，在电熔过程中形成碳氮化钛固溶体固溶在莫来石中，得到莫来石耐火原料。本发明制备的莫来石形成针状晶体，晶体结构好，易破碎，同时原料价格低廉，实现了中低品位矾土的综合利用，电熔过程中形成的碳氮化钛固溶体是一种性能优良的非氧化物陶瓷材料，有利于后续莫来石质制品性能的提高。
Preparation method of fused mullite containing titanium carbonitride solid solution
The invention discloses a preparation method of fused mullite containing a titanium carbonitride solid solution, and belongs to the technical field of refractory materials. The fused mullite is prepared from medium-low-grade alumina in an electric arc furnace through an electric melting method, wherein the content of aluminum oxide in the medium-low-grade alumina is 45%-60%, and the content of titanium dioxide is generally smaller than 8%; a titanium carbonitride solid solution is formed in the electric melting process and dissolved in the mullite in a solid mode to obtain the mullite refractory raw material. The mullite prepared by the method forms acicular crystals, is good in crystal structure, easy to break and low in raw material price, and realizes comprehensive utilization of mediumand low-grade alumina; the titanium carbonitride solid solution formed in the electric melting process is a non-oxide ceramic material with excellent performance, so that the method is beneficial toimprovement of subsequent mullite product performance.
一种含碳氮化钛固溶体的电熔莫来石制备方法，属于耐火材料技术领域。本发明将中低品位的矾土在电弧炉中通过电熔法制备电熔莫来石，中低品位矾土中氧化铝含量为45%~60%，二氧化钛的含量通常＜8%，在电熔过程中形成碳氮化钛固溶体固溶在莫来石中，得到莫来石耐火原料。本发明制备的莫来石形成针状晶体，晶体结构好，易破碎，同时原料价格低廉，实现了中低品位矾土的综合利用，电熔过程中形成的碳氮化钛固溶体是一种性能优良的非氧化物陶瓷材料，有利于后续莫来石质制品性能的提高。
Preparation method of fused mullite containing titanium carbonitride solid solution
一种含碳氮化钛固溶体的电熔莫来石制备方法
LI YONG (Autor:in) / YUE QIAN (Autor:in) / SUN JIALIN (Autor:in) / XUE WENDONG (Autor:in) / JIANG PENG (Autor:in)
03.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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