... of propene,Butylene and ethylene.When HTLOSA addition level is 3% - 5%(based on total catalyst inventories),yield of ... same time.Characteristics ItemsSpecificationsTesting MethodsLoss of weight, m%≤ 10RIPP32-90AL2O3, m%≥ 25RIPP42-90Attrition index, m%≤ 3.0RIPP29-90Apparent bulk density, g/ml0.60 ... 60RIPP31-90Pore volume, ml/g≥ 0.06RIPP151-900 – 40μm, m%≤ 22QJ/CL-4-2-009Average dia of granule≤ 110μmQJ ...