A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alumina-chromium oxide sol combined chromium corundum brick and preparation method thereof
The invention belongs to the technical field of refractory materials, and particularly relates to an aluminum oxide-chromium oxide sol composite combined Al2O3-Cr2O3 corundum brick and a preparation method thereof.The method comprises the following steps that 1, a composite binding agent is prepared, specifically, a certain amount of rho-Al2O3 micro powder, a certain amount of chromium oxide micro powder and a certain amount of sodium tripolyphosphate are taken and mixed to be uniform, and the composite binding agent is prepared; and adding aluminum dihydrogen phosphate and a certain mass of water. 2, corundum refractory aggregate, corundum fine powder, Cr2O3 micro powder and alpha-Al2O3 micro powder are mixed, a certain amount of the aluminum oxide-chromium oxide sol composite binding agent in the first step is added and stirred to be uniform, finally, treatment is conducted at a certain temperature, and the aluminum oxide-chromium oxide sol composite material is obtained. And the alumina-chromium oxide sol compounded and combined Al2O3/Cr2O3 corundum brick can be prepared without high-temperature firing and only through medium-temperature treatment at 600-800 DEG C. The alumina-chromium oxide sol compounded and combined Al2O3/Cr2O3 corundum brick can be prepared by the preparation method disclosed by the invention.
本发明属于耐火材料技术领域，具体涉及一种氧化铝‑氧化铬溶胶复合结合A12O3‑Cr2O3质刚玉砖及其制备方法，所述方法包括如下步骤，步骤一：复合结合剂的制备：取一定量的ρ‑Al2O3微粉、氧化铬微粉、三聚磷酸钠混合均匀，并加入磷酸二氢铝和一定质量的水制备而成；步骤二：将刚玉耐火骨料、刚玉细粉、Cr2O3微粉、α‑Al2O3微粉混合后，加入一定量的步骤一中所述的氧化铝‑氧化铬溶胶复合结合剂搅拌均匀，最后在一定温度下处理即得，采用所述制备方法能够提供一种强度高、抗冲刷性能好、抗熔渣侵蚀性能强，并且不需要高温烧成，仅需600‑800℃中温处理即可的氧化铝‑氧化铬溶胶复合结合A12O3‑Cr2O3质刚玉砖。
Alumina-chromium oxide sol combined chromium corundum brick and preparation method thereof
The invention belongs to the technical field of refractory materials, and particularly relates to an aluminum oxide-chromium oxide sol composite combined Al2O3-Cr2O3 corundum brick and a preparation method thereof.The method comprises the following steps that 1, a composite binding agent is prepared, specifically, a certain amount of rho-Al2O3 micro powder, a certain amount of chromium oxide micro powder and a certain amount of sodium tripolyphosphate are taken and mixed to be uniform, and the composite binding agent is prepared; and adding aluminum dihydrogen phosphate and a certain mass of water. 2, corundum refractory aggregate, corundum fine powder, Cr2O3 micro powder and alpha-Al2O3 micro powder are mixed, a certain amount of the aluminum oxide-chromium oxide sol composite binding agent in the first step is added and stirred to be uniform, finally, treatment is conducted at a certain temperature, and the aluminum oxide-chromium oxide sol composite material is obtained. And the alumina-chromium oxide sol compounded and combined Al2O3/Cr2O3 corundum brick can be prepared without high-temperature firing and only through medium-temperature treatment at 600-800 DEG C. The alumina-chromium oxide sol compounded and combined Al2O3/Cr2O3 corundum brick can be prepared by the preparation method disclosed by the invention.
本发明属于耐火材料技术领域，具体涉及一种氧化铝‑氧化铬溶胶复合结合A12O3‑Cr2O3质刚玉砖及其制备方法，所述方法包括如下步骤，步骤一：复合结合剂的制备：取一定量的ρ‑Al2O3微粉、氧化铬微粉、三聚磷酸钠混合均匀，并加入磷酸二氢铝和一定质量的水制备而成；步骤二：将刚玉耐火骨料、刚玉细粉、Cr2O3微粉、α‑Al2O3微粉混合后，加入一定量的步骤一中所述的氧化铝‑氧化铬溶胶复合结合剂搅拌均匀，最后在一定温度下处理即得，采用所述制备方法能够提供一种强度高、抗冲刷性能好、抗熔渣侵蚀性能强，并且不需要高温烧成，仅需600‑800℃中温处理即可的氧化铝‑氧化铬溶胶复合结合A12O3‑Cr2O3质刚玉砖。
Alumina-chromium oxide sol combined chromium corundum brick and preparation method thereof
一种氧化铝-氧化铬溶胶结合铬刚玉质砖及其制备方法
LI ZIGANG (author) / WANG ZHIGANG (author) / ZHENG YUEPENG (author) / SONG HAISHAN (author) / LUO GUANGRUI (author) / HU BAOXIAN (author) / LI ZHIQIANG (author) / PENG CONGHUA (author) / LI XIAOWEI (author) / LI ANGANG (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
Fused casting zirconium chromium corundum refractory brick and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2024
Chromium-zirconium-corundum composite brick for garbage incineration grate furnace
| European Patent Office | 2024