HQ-HK Slotted & perforated ceramic balls

(1) Product Description     Slotted & Perforated Ceramic Balls is a new product developed on the basis of HQ-HK perforated by slotting for symmetrical slots on the sphere. It can increase the free volume and flux of the fluids and, decrease the resistance of the system. Furthermore, as a new efficient support and covering material of catalyst, it can be widely used in oil refinery, chemical, fertilizer, natural gas and environmental protection industries.     (2) Technical Specification Type Feldspar Feldspar- Mullite Mullite Mullite- Corundum Corundum   Item Chemical composition% Al2O3 20-30 30-45 45-70 70-90 ≥90 Al2O3+SiO2 ≥90 Fe2O3 ≤1  Water absorption, % ≤5  Acid resistance, % ≥98  Alkali resistance,% ≥80 ≥82 ≥85 ≥90 ≥95 Thermal resistance ,℃ ≥1300 ≥1400 ≥1500 ≥1600 ≥1700 Crushing strength N/grain Φ３ ≥400 ≥420 ≥440 ≥480 ≥500 Φ６ ≥480 ≥520 ≥600 ≥620 ≥650 Φ８ ≥600 ≥700 ≥800 ≥900 ≥1000 Φ10 ≥1000 ≥1100 ≥1300 ≥1500 ≥1800 Φ13 ≥1500 ≥1600 ≥1800 ≥2300 ≥2600 Φ16 ≥1800 ≥2000 ≥2300 ≥2800 ≥3200 Φ20 ≥2500 ≥2800 ≥3200 ≥3600 ≥4000 Φ25 ≥3000 ≥3200 ≥3500 ≥4000 ≥4500 Φ30 ≥4000 ≥4500 ≥5000 ≥5500 ≥6000 Φ38 ≥6000 ≥6500 ≥7000 ≥8500 ≥10000 Φ50 ≥8000 ≥8500 ≥9000 ≥10000 ≥12000 Φ75 ≥10000 ≥11000 ≥12000 ≥14000 ≥15000  Bulk density, kg/m3 1100-1200 1200-1300 1300-1400 1400-1550 ≥1550 Note: The data of bulk density is given for reference only, not as the acceptance criterion. (3)  Size Diameter,Φ 6 8 10 13 16 20 25 30 38 50 60 75 Tolerance,mm ±1.0 ±1.5 ±2.0 ±3.0 Diameter of hole,mm 2-3 3-5 5-8 8-10