Flat ceramic membrane formulation carrying nano copper oxide and preparation method thereof

[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. ...

[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...

[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...