Flat ceramic membrane formulation carrying nano copper oxide and preparation method thereof
A technology of nano-copper oxide and ceramic membrane, which is applied in the field of inorganic ceramic membrane, can solve the problems of high cost of raw material silicon carbide, lack of conditions for widespread promotion, and high cost of production process, so as to reduce material cost, production process and product quality. The effect of quality assurance
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Embodiment 1
[0027] The preparation of the flat ceramic membrane loaded with nano-copper oxide, the steps are as follows:
[0028] (1) Preparation of support body: 5% (wt), particle size is 2 μ m of kaolin, basic magnesium carbonate mixed with distilled water and then ground, then mixed with 85% (wt) of alumina and mullite material, After the mixture is completely dry, grind it lightly, pass it through a 1000 mesh sieve, then add 5% cornstarch, a pore-forming agent with a particle size of 2 μm, and 5% binder PVA-1750 solution and mix well, and finally form a support material ; Then, the supporting body ingredients were prepared by extrusion molding method to prepare the ceramic membrane supporting body; after the ceramic membrane supporting body was dried at 105 ° C, it was sintered in an electric furnace with a constant temperature of 1400 ° C for 2 hours, and then naturally cooled to room temperature; the main material of the supporting body The mass ratio of alumina and mullite is 1:2. ...
Embodiment 2
[0033]The preparation of the flat ceramic membrane loaded with nano-copper oxide, the steps are as follows:
[0034] (1) Preparation of the support body: 10% (wt), particle size of 1 μm of kaolin, basic magnesium carbonate and distilled water are mixed and ground, then mixed with 75% (wt) of alumina, dolomite materials, wait After the mixture is completely dry, grind it lightly, pass through an 800-mesh sieve after grinding, add 5% cornstarch, a pore-forming agent with a particle size of 11 μm, and 10% binder PVA-1750 solution and mix well, and finally form a support body ingredient; then Prepare the ceramic membrane support by extruding the ingredients of the support; dry the ceramic membrane support at 105°C, sinter in an electric furnace with a constant temperature of 1100°C for 3 hours, and then cool naturally to room temperature; the main material of the support is alumina The mass ratio to dolomite is 1:1.
[0035] After testing, the average pore diameter of the sintere...
Embodiment 3
[0039] The preparation of the flat ceramic membrane loaded with nano-copper oxide, the steps are as follows:
[0040] (1) Preparation of the support body: 20% (wt) of kaolin with a particle size of 3 μm, basic magnesium carbonate and distilled water are mixed and ground, and then mixed with 70% (wt) of alumina, dolomite and bauxite materials Evenly, after the mixture is completely dry, grind gently, pass through a 150-mesh sieve after grinding, then add 2% corn starch with a particle size of 80 μm, 8% binder PVA-1750 solution and mix well, and finally form a support Body ingredients; then the support body ingredients were prepared by extrusion molding method to balance the ceramic membrane support body; after the ceramic membrane support body was dried at 105°C, it was sintered in an electric furnace with a constant temperature of 1300°C for 1.5h, and then naturally cooled to room temperature; the support The mass ratio of main material dolomite and bauxite is 1:2.
[0041] A...
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