Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength corrosion-resistant refractory brick and preparation method thereof
The invention discloses a high-strength corrosion-resistant refractory brick and a preparation method thereof, and relates to the technical field of refractory materials. The high-strength corrosion-resistant refractory brick is prepared from magnesium oxide, dolomite sand, ferrocene, chromic oxide, ferric oxide, polyethylene glycol, a composite binding agent and absolute ethyl alcohol. The composite binding agent comprises modified phenolic resin and silica sol; ferrocene, chromic oxide and ferric oxide are introduced into the dolomite refractory brick, low-temperature drying is carried out, during high-temperature sintering, generated pores and cracks are filled with the introduced chromic oxide and ferric oxide, and the ferrocene reacts with calcium oxide to form calcium ferrite which exists in a liquid phase form and fills the remaining pores and cracks, so that the compactness is improved, and the service life of the refractory brick is prolonged. Therefore, the sintering performance is improved, and the strength of the refractory brick is ensured; the modified phenolic resin is prepared by reacting o-phenylphenol with phenolic resin and then reacting with phenylboronic acid, so that the strength and heat resistance of the refractory brick are enhanced.
本发明公开了一种高强度耐腐蚀耐火砖及其制备方法，涉及耐火材料技术领域。本发明中的高强度耐腐蚀耐火砖，包括氧化镁、白云石砂、二茂铁、氧化铬、三氧化二铁、聚乙二醇、复合结合剂、无水乙醇；复合结合剂包括改性酚醛树脂和硅溶胶；在白云石系耐火砖中引入二茂铁、氧化铬和三氧化二铁，并进行低温干燥，在高温烧结时，引入的氧化铬和三氧化二铁填充产生的气孔和裂缝，而二茂铁与氧化钙发生反应形成铁酸钙，以液相形式存在，填充了剩余的气孔和裂缝，提高了致密性，从而提高了烧结性能，保证了耐火砖的强度；改性酚醛树脂是邻苯基苯酚与酚醛树脂反应后，再与苯硼酸反应制得，增强耐火砖的强度和耐热性。
High-strength corrosion-resistant refractory brick and preparation method thereof
The invention discloses a high-strength corrosion-resistant refractory brick and a preparation method thereof, and relates to the technical field of refractory materials. The high-strength corrosion-resistant refractory brick is prepared from magnesium oxide, dolomite sand, ferrocene, chromic oxide, ferric oxide, polyethylene glycol, a composite binding agent and absolute ethyl alcohol. The composite binding agent comprises modified phenolic resin and silica sol; ferrocene, chromic oxide and ferric oxide are introduced into the dolomite refractory brick, low-temperature drying is carried out, during high-temperature sintering, generated pores and cracks are filled with the introduced chromic oxide and ferric oxide, and the ferrocene reacts with calcium oxide to form calcium ferrite which exists in a liquid phase form and fills the remaining pores and cracks, so that the compactness is improved, and the service life of the refractory brick is prolonged. Therefore, the sintering performance is improved, and the strength of the refractory brick is ensured; the modified phenolic resin is prepared by reacting o-phenylphenol with phenolic resin and then reacting with phenylboronic acid, so that the strength and heat resistance of the refractory brick are enhanced.
本发明公开了一种高强度耐腐蚀耐火砖及其制备方法，涉及耐火材料技术领域。本发明中的高强度耐腐蚀耐火砖，包括氧化镁、白云石砂、二茂铁、氧化铬、三氧化二铁、聚乙二醇、复合结合剂、无水乙醇；复合结合剂包括改性酚醛树脂和硅溶胶；在白云石系耐火砖中引入二茂铁、氧化铬和三氧化二铁，并进行低温干燥，在高温烧结时，引入的氧化铬和三氧化二铁填充产生的气孔和裂缝，而二茂铁与氧化钙发生反应形成铁酸钙，以液相形式存在，填充了剩余的气孔和裂缝，提高了致密性，从而提高了烧结性能，保证了耐火砖的强度；改性酚醛树脂是邻苯基苯酚与酚醛树脂反应后，再与苯硼酸反应制得，增强耐火砖的强度和耐热性。
High-strength corrosion-resistant refractory brick and preparation method thereof
一种高强度耐腐蚀耐火砖及其制备方法
XU BAOYUAN (Autor:in) / CHEN RUOYU (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-strength wear-resistant refractory brick and preparation method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2022
Preparation method of refractory brick resistant to molten salt corrosion
| Europäisches Patentamt | 2021
High-strength environment-friendly refractory brick and preparation method thereof
| Europäisches Patentamt | 2021