Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Method for preparing zirconium boride powder under assistance of alcohol solvent
The invention discloses a method for preparing zirconium boride powder under the assistance of an alcohol solvent, which comprises the following steps: under a water bath condition, mixing boric acid,sorbitol and acetic acid, stirring for dissolving, adding an alcohol solvent, and uniformly stirring to obtain a mixed solution; cooling the mixed solution to room temperature, then adding zirconiumn-propoxide into the mixed solution, and uniformly stirring to obtain sol; aging the sol so as to obtain a gel; drying and crushing the gel to obtain dry gel powder; and putting the dry gel powder into a tubular furnace, introducing protective gas into the tubular furnace, and performing calcining at 1200-1800 DEG C for 10-120 minutes, thereby obtaining the zirconium boride powder. The method is simple in technological process, high in production efficiency, low in energy consumption and suitable for industrial large-scale production and application, and the prepared zirconium boride powder has high purity, ultrafine particle size, controllable morphology and good sintering performance.
本发明公开了一种醇类溶剂辅助制备硼化锆粉体的方法，包括：在水浴条件下，将硼酸、山梨醇与醋酸混合，并搅拌溶解，然后加入醇类溶剂，搅拌均匀，从而得到混合液；将所述混合液冷却至室温，然后向混合液中加入正丙醇锆，并搅拌均匀，从而得到溶胶；将所述溶胶进行老化，从而得到凝胶；将所述凝胶烘干、破碎，从而得到干凝胶粉；将所述干凝胶粉置于管式炉内，并向管式炉内通入保护气，在1200～1800℃下煅烧10～120分钟，从而制得硼化锆粉体。本发明不仅工艺过程简单、生产效率高、能耗较低，适合工业化大规模生产应用，而且所制备的硼化锆粉体具有高纯度和超细粒径，形貌可控，烧结性能良好。
Method for preparing zirconium boride powder under assistance of alcohol solvent
The invention discloses a method for preparing zirconium boride powder under the assistance of an alcohol solvent, which comprises the following steps: under a water bath condition, mixing boric acid,sorbitol and acetic acid, stirring for dissolving, adding an alcohol solvent, and uniformly stirring to obtain a mixed solution; cooling the mixed solution to room temperature, then adding zirconiumn-propoxide into the mixed solution, and uniformly stirring to obtain sol; aging the sol so as to obtain a gel; drying and crushing the gel to obtain dry gel powder; and putting the dry gel powder into a tubular furnace, introducing protective gas into the tubular furnace, and performing calcining at 1200-1800 DEG C for 10-120 minutes, thereby obtaining the zirconium boride powder. The method is simple in technological process, high in production efficiency, low in energy consumption and suitable for industrial large-scale production and application, and the prepared zirconium boride powder has high purity, ultrafine particle size, controllable morphology and good sintering performance.
本发明公开了一种醇类溶剂辅助制备硼化锆粉体的方法，包括：在水浴条件下，将硼酸、山梨醇与醋酸混合，并搅拌溶解，然后加入醇类溶剂，搅拌均匀，从而得到混合液；将所述混合液冷却至室温，然后向混合液中加入正丙醇锆，并搅拌均匀，从而得到溶胶；将所述溶胶进行老化，从而得到凝胶；将所述凝胶烘干、破碎，从而得到干凝胶粉；将所述干凝胶粉置于管式炉内，并向管式炉内通入保护气，在1200～1800℃下煅烧10～120分钟，从而制得硼化锆粉体。本发明不仅工艺过程简单、生产效率高、能耗较低，适合工业化大规模生产应用，而且所制备的硼化锆粉体具有高纯度和超细粒径，形貌可控，烧结性能良好。
Method for preparing zirconium boride powder under assistance of alcohol solvent
一种醇类溶剂辅助制备硼化锆粉体的方法
LI XINYANG (Autor:in) / CHEN BENSONG (Autor:in) / HU XIAOYE (Autor:in) / HUANG ZHULIN (Autor:in) / HU CHENGUANG (Autor:in) / LI YUE (Autor:in)
11.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Process for preparing rod-like zirconium boride powder at low temperature
| Europäisches Patentamt | 2021