Water-purifying porous ceramic
A porous ceramic and water purification technology, applied in the field of water treatment, can solve the problems of extremely large primary battery treatment surface area, small functional area, and high cost, and achieve the effects of large market potential, large specific surface area, and low production cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0022] A kind of water-purifying porous ceramics, its preparation method comprises the following steps:
[0023] 1) Grind and mix copper oxide and iron oxide with a molar ratio of (6~14):(8~17), put them into water to make a suspension;
[0024] 2) Add sodium silicate, polyaluminum chloride and porogen respectively to the suspension, stir and mix well; then let stand to react and generate precipitate; wherein the molar ratio of sodium silicate and polyaluminum chloride is (5~ 13): (6~21), polyaluminum chloride is calculated according to the moles of alumina contained in it;
[0025] 3) After the reaction is over, discard the supernatant, make the precipitate into a sphere, and obtain a ball after drying;
[0026] 4) Send the pellets into the kiln, and fire them in a reducing atmosphere to obtain water-purifying porous ceramics.
[0027] Preferably, the molar ratio of copper oxide, iron oxide, sodium silicate and polyaluminum chloride used is (6-14):(8-17):(5-13):(6-21).
[...
Embodiment 1
[0038] 1) Grind copper oxide and iron oxide in equimolar ratio to 500 mesh and mix well, put into water and stir to disperse to make suspension;
[0039] 2) Put sodium silicate, polyaluminum chloride, and polyacrylamide into the suspension respectively, stir and mix well; then let it stand for 2 hours, and react to form a precipitate; among them, copper oxide, iron oxide, sodium silicate, polychloride The feed molar ratio of aluminum is 1:1:1:1, the molar value of polyaluminum chloride is calculated according to the moles of alumina contained in it, and the polyacrylamide is calculated according to copper oxide, iron oxide, sodium silicate and polychloride 0.1% throwing in of the total weight of aluminum;
[0040] 3) After the reaction is over, filter the supernatant, take out the precipitated sludge and make a sphere with a particle size of 5 cm, leave it to dry, and obtain a pellet;
[0041] 4) Send the pellets into the kiln, and sinter at 1200°C for 20 minutes in a reducin...
Embodiment 2
[0043] 1) Grind copper oxide and iron oxide with a molar ratio of 6:8 to 400 mesh and mix well, put into water and stir to disperse to form a suspension;
[0044] 2) Put sodium silicate, polyaluminum chloride, and ammonium bicarbonate into the suspension respectively, stir and mix well; The feed molar ratio of aluminum is 6:8:5:6, the molar value of polyaluminum chloride is calculated according to the moles of alumina contained in it, and the ammonium bicarbonate is calculated according to copper oxide, iron oxide, sodium silicate and polyaluminum chloride 0.5% throwing in of the total weight of aluminum;
[0045] 3) After the reaction is finished, filter the supernatant, take out the precipitated sludge and make a sphere with a particle size of 4 cm, leave it to dry, and obtain a pellet;
[0046] 4) Send the pellets into the kiln, and sinter at 1250°C for 20 minutes under a reducing atmosphere to obtain a nanoscale water-purifying porous ceramic.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More