Porous Ceramic Ball

Porous ceramic ball is also called filtering balls. It is made by make 20-30% pores inside the inert ceramic balls. Therefore it can be used not only for supporting and covering the catalyst, but also for filtering and eliminating the impurities of grain, gelatin, asphalting, heavy metal and iron ions of less than 25um. If the porous ball is set on the top of a reactor, the impurities fail to be eliminated in former process could be adsorbed in the pores inside the balls, there upon protect the catalyst and prolong the operating cycle of the system. As the impurities present in the materials are different, the user can select the product by their sizes, pores and porosity, or if necessary, add molybdenum, nickel and cobalt or other active components to prevent the catalyst from coking or poisoning.

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Physical Properties of Porous Ceramic Ball
Type		Feldspar	Feldspar-Molai	Molai Stone	Molai-Corundum	Corundum
Item		Feldspar	Feldspar-Molai	Molai Stone	Molai-Corundum	Corundum
Chemical content (%)	Al2O3	20-30	30-45	45-70	70-90	≥90
	Al2O3+ SiO2	≥90
	Fe2O3	≤1
Water adsorption (%)		≤5
Acid resistance (%)		≥98
Alkaki resistance (%)		≥80	≥82	≥85	≥90	≥95
Operation temperature (°C)		≥1300	≥1400	≥1500	≥1600	≥1700
Crushing strength (N/Piece)	Φ3mm	≥400	≥420	≥440	≥480	≥500
	Φ6mm	≥480	≥520	≥600	≥620	≥650
	Φ8mm	≥600	≥700	≥800	≥900	≥1000
	Φ10mm	≥1000	≥1100	≥1300	≥1500	≥1800
	Φ13mm	≥1500	≥1600	≥1800	≥2300	≥2600
	Φ16mm	≥1800	≥2000	≥2300	≥2800	≥3200
	Φ20mm	≥2500	≥2800	≥3200	≥3600	≥4000
	Φ25mm	≥3000	≥3200	≥3500	≥4000	≥4500
	Φ30mm	≥4000	≥4500	≥5000	≥5500	≥6000
	Φ38mm	≥6000	≥6500	≥7000	≥8500	≥10000
	Φ50mm	≥8000	≥8500	≥9000	≥10000	≥12000
	Φ75mm	≥10000	≥11000	≥12000	≥14000	≥15000
Bulk density (kg/m3)		1100-1200	1200-1300	1300-1400	1400-1550	≥1550

Size and Tolerance of Porous Ceramic Ball
Diameter	6 /8 /10	13 /16 /20 /25	30 /38 /50	60 /75
Tolerance of diameter	± 1.0	± 1.5	± 2.0	± 3.0
Pore diameter	2-3	3-5	5-8	8-10

Porous Ceramic Ball

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