A new type of ceramic membrane
A ceramic membrane, a new type of technology, applied in the field of ceramic membranes, can solve the problems of high cost and easy clogging, and achieve the effects of improving the success rate, facilitating cleaning and processing, and ensuring efficiency
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Embodiment 1
[0025] Material: hydroxyethyl cellulose (purchased from Sigma, viscosity 80-125cp), acetone (purchased from Sigma, concentration 99.5%), polyethylene glycol (purchased from Merck, Mw-285-315Da), Dolapix (purchased from Merck , CE 64), orthophosphoric acid (purchased from Merck), calcium hydroxide (purchased from Merck), hydrochloric acid (HCl, chemically pure), sodium hydroxide (NaOH, chemically pure), the materials required for the following tests, unless otherwise specified , the sources are all commercially available.
[0026] Step 1, the molar ratio is 1.67 Ca(OH) 2 , and H 3 PO 4 Mix well, prepare HAP powder by wet chemical precipitation method, keep the reaction environment at pH11-12 during the synthesis, then oven-dry the synthesized HAP at 80°C and calcinate at 800°C, after that, powder the HAP and save it for for further use.
[0027] Step 2, preparing novel chain compounds. Specifically, add 3.25mL, 31mmol, 6 equivalents of thionyl chloride to 60ml of 1,2-propa...
Embodiment 2
[0032] The next step of preparation is based on the special-shaped filter pore ceramic membrane, such as image 3 As mentioned above, the special-shaped porous ceramic membrane is a support layer, and a transition layer and a membrane separation layer are also loaded on the support layer. After joint curing, extend along the inner wall of the special-shaped filter pore ceramic membrane, place the special-shaped filter pore ceramic membrane in an electric arc furnace for sintering, gradually raise the temperature to 880-900°C, and fire for 1.5h, then raise the temperature to 920-1120°C, and fire for 0.5 h, finally lower the temperature to 850-870°C, keep it warm for 2h, and cool to obtain a secondary special-shaped filter pore ceramic membrane; the membrane separation layer is coated nano-silver ions (purchased from Dalian Hejian Technology Development Co., Ltd.), A new type of ceramic membrane is obtained by cross-linking and curing polyacrylamide on the transition layer and k...
Embodiment 3
[0034] In order to realize the replaceable performance of the ceramic membrane and the seamless connection with other purification elements, the present invention also provides a ceramic membrane filter with a structure such as image 3 As shown, it includes a ceramic membrane body 1, a first detachable connector 2, and a second detachable connector 3. The ceramic membrane body 1 includes a new ceramic membrane 11, a first sealing ring 12, a second sealing ring 13, a cleaning The first detachable connector 2 includes a third sealing ring 21 and a water outlet 22 , and the second detachable connector 3 includes a third sealing ring 31 and a water outlet 32 . The ceramic membrane body 1 , the first detachable connector 2 , and the second detachable connector 3 are connected in conventional ways, including but not limited to screw connections, spline connections, interference connections, and riveting.
[0035]Utilize the ceramic membrane filter that this embodiment makes, carr...
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Abstract
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