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High-flux asymmetric alumina ceramic membrane as well as preparation method and application thereof
The invention relates to a high-flux asymmetric aluminum oxide ceramic membrane as well as a preparation method and application thereof. The ceramic membrane has three layers of asymmetric structures: a support layer, a transition layer and a separation layer. The alumina support layer is prepared by casting, drying and calcining support layer slurry, and the support layer slurry comprises alumina, a binder, a sintering aid and water. The aluminum oxide in the aluminum oxide supporting layer is large in particle size, the aluminum oxide in the transition layer is medium in particle size, and the aluminum oxide in the separation layer is nanoscale. The membrane is high in flux, stable in performance, small in thickness, simple in preparation process and easy to industrialize. Compared with the traditional dry pressing method, the ceramic membrane supporting layer prepared by the membrane casting method has the advantage that the flux is obviously improved.
本发明涉及一种高通量非对称氧化铝陶瓷膜及其制备方法和应用。该陶瓷膜具有三层非对称结构：支撑层、过渡层、分离层。氧化铝支撑层由支撑层浆料铸膜、干燥、煅烧制备得到，支撑层浆料包括氧化铝、粘结剂、助烧剂和水。氧化铝支撑层中的氧化铝为大粒径，过渡层中的氧化铝为中等粒径，分离层中的氧化铝为纳米级。该膜具备高通量、性能稳定，厚度小，且制备工艺简单，容易产业化。与传统的干压法相比，铸膜法所制备的陶瓷膜支撑层在通量方面表现出显著提升。
High-flux asymmetric alumina ceramic membrane as well as preparation method and application thereof
The invention relates to a high-flux asymmetric aluminum oxide ceramic membrane as well as a preparation method and application thereof. The ceramic membrane has three layers of asymmetric structures: a support layer, a transition layer and a separation layer. The alumina support layer is prepared by casting, drying and calcining support layer slurry, and the support layer slurry comprises alumina, a binder, a sintering aid and water. The aluminum oxide in the aluminum oxide supporting layer is large in particle size, the aluminum oxide in the transition layer is medium in particle size, and the aluminum oxide in the separation layer is nanoscale. The membrane is high in flux, stable in performance, small in thickness, simple in preparation process and easy to industrialize. Compared with the traditional dry pressing method, the ceramic membrane supporting layer prepared by the membrane casting method has the advantage that the flux is obviously improved.
本发明涉及一种高通量非对称氧化铝陶瓷膜及其制备方法和应用。该陶瓷膜具有三层非对称结构：支撑层、过渡层、分离层。氧化铝支撑层由支撑层浆料铸膜、干燥、煅烧制备得到，支撑层浆料包括氧化铝、粘结剂、助烧剂和水。氧化铝支撑层中的氧化铝为大粒径，过渡层中的氧化铝为中等粒径，分离层中的氧化铝为纳米级。该膜具备高通量、性能稳定，厚度小，且制备工艺简单，容易产业化。与传统的干压法相比，铸膜法所制备的陶瓷膜支撑层在通量方面表现出显著提升。
High-flux asymmetric alumina ceramic membrane as well as preparation method and application thereof
一种高通量非对称氧化铝陶瓷膜及其制备方法和应用
PAN YICHANG (author) / WANG CHONGQING (author) / ZHOU YUXUAN (author) / SHEN BINGBO (author)
2024-12-31
Patent
Electronic Resource
Chinese
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