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Hollow fiber ceramic membrane production method
A hollow fiber ceramic membrane production method comprises the following steps: adding polyethersulfone particles into an n-methyl-2-pyrrolidone solution, dissolving to form a polymer solution, adding polyvinylpyrrolidone, and uniformly mixing; slowly adding Fe2O3 and YSZ mixed powder, fully stirring, and preparing a spinning solution; pouring the spinning solution into a stainless steel container, and carrying out vacuum deaeration at room temperature for 2h to remove bubbles dissolved in the stirring process; and spinning by adopting an air gap technology, extruding the spinning solution from a spinning nozzle into an external coagulant aid tap water at a speed of 20-30mm/s under a nitrogen pressure of 0.1MPa under an air gap of 150-300mm, and standing the above obtained hollow fiber ceramic membrane precursor in tap water for 14-34h.
Hollow fiber ceramic membrane production method
A hollow fiber ceramic membrane production method comprises the following steps: adding polyethersulfone particles into an n-methyl-2-pyrrolidone solution, dissolving to form a polymer solution, adding polyvinylpyrrolidone, and uniformly mixing; slowly adding Fe2O3 and YSZ mixed powder, fully stirring, and preparing a spinning solution; pouring the spinning solution into a stainless steel container, and carrying out vacuum deaeration at room temperature for 2h to remove bubbles dissolved in the stirring process; and spinning by adopting an air gap technology, extruding the spinning solution from a spinning nozzle into an external coagulant aid tap water at a speed of 20-30mm/s under a nitrogen pressure of 0.1MPa under an air gap of 150-300mm, and standing the above obtained hollow fiber ceramic membrane precursor in tap water for 14-34h.
Hollow fiber ceramic membrane production method
GUO FANGWEI (author) / CAI HUANGYUE (author) / ZHAO XIAOFENG (author) / HONG LIANG (author) / SANG ZHIHONG (author)
2015-07-22
Patent
Electronic Resource
English
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