Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-purity metatitanic acid by using waste denitration catalyst
The invention belongs to the field of resource recycling of waste denitration catalysts, and particularly relates to a method for preparing high-purity metatitanic acid by using a waste denitration catalyst. The method comprises the following steps: treating the waste denitration catalyst with mixed alkali liquor, cleaning with acid after treatment, and separating to obtain a high-purity metatitanic acid solid. By means of the method, impurities such as vanadium oxide, tungsten oxide, silicon oxide and aluminum oxide can be effectively removed from the waste denitration catalyst, the metatitanic acid nano-particles with the TiO2 content larger than 99% and small and uniform particle size are obtained through recycling, and the metatitanic acid nano-particles are suitable for further preparing novel electronic ceramic materials.
本发明属于废脱硝催化剂资源化回收领域，特别涉及一种利用废脱硝催化剂制备高纯偏钛酸的方法。将废脱硝催化剂用混合碱液处理，处理后再用酸进行清洗、分离获得高纯度偏钛酸固体。本发明方法能够从废脱硝催化剂中有效脱除氧化钒、氧化钨、氧化硅、氧化铝等杂质，回收得到TiO2含量大于99%、粒径小且均匀的偏钛酸纳米颗粒，适合于进一步制备新型电子陶瓷类材料。
Method for preparing high-purity metatitanic acid by using waste denitration catalyst
The invention belongs to the field of resource recycling of waste denitration catalysts, and particularly relates to a method for preparing high-purity metatitanic acid by using a waste denitration catalyst. The method comprises the following steps: treating the waste denitration catalyst with mixed alkali liquor, cleaning with acid after treatment, and separating to obtain a high-purity metatitanic acid solid. By means of the method, impurities such as vanadium oxide, tungsten oxide, silicon oxide and aluminum oxide can be effectively removed from the waste denitration catalyst, the metatitanic acid nano-particles with the TiO2 content larger than 99% and small and uniform particle size are obtained through recycling, and the metatitanic acid nano-particles are suitable for further preparing novel electronic ceramic materials.
本发明属于废脱硝催化剂资源化回收领域，特别涉及一种利用废脱硝催化剂制备高纯偏钛酸的方法。将废脱硝催化剂用混合碱液处理，处理后再用酸进行清洗、分离获得高纯度偏钛酸固体。本发明方法能够从废脱硝催化剂中有效脱除氧化钒、氧化钨、氧化硅、氧化铝等杂质，回收得到TiO2含量大于99%、粒径小且均匀的偏钛酸纳米颗粒，适合于进一步制备新型电子陶瓷类材料。
Method for preparing high-purity metatitanic acid by using waste denitration catalyst
一种利用废脱硝催化剂制备高纯偏钛酸的方法
22.12.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2024
Hydrothermal Synthesis of Nano-Structured Barium Titanate from Metatitanic Acid
| British Library Online Contents | 2010
Innocuous treatment process of waste flue gas denitration catalyst
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2024