Tourmaline functional ceramic filter core and preparation method thereof
A technology of functional ceramics and tourmaline, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as single function, and achieve the effects of increased contact area, high purification efficiency, and long service life
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[0012] A tourmaline functional ceramic filter element is made of the following raw materials in parts by weight (kg):
[0013] Tourmaline powder 40, bamboo charcoal powder 14, medical stone powder 8, potassium feldspar powder 9, polyvinyl alcohol 6, zeolite powder 3, sodium persulfate 3, urea 13, modified bentonite 20, appropriate amount of water.
[0014] Described modified bentonite is made by following method:
[0015] Calcinate bentonite at 520-540°C for 3-4 hours, take it out, cool it, soak it in 10-12% hydrochloric acid solution for 2-3 hours, then soak it in 10-12% sodium hydroxide solution for 1-2 hours , take it out, wash it with pure water, dry it and grind it into powder; then add aluminum nitride equivalent to 40% of the weight of bentonite, 18% of apocynum powder, 3% of brown sugar, 3% of chromium boride, and 4% of Tungsten carbide powder, mixed and stirred for 30-40 minutes, and then sprayed with 7% bentonite weight Cross-linking agent TAC , Sti...
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