Patent ID: 8685283
Filing Date: 2014-04-01
Classification: B01J,C01B,C01F,C01P,C09C,Y10T

Abstract:
1. Superficially porous particles, comprising: solid cores having a size ranging from about 20% to about 99% of the size of the entire particles; substantially porous outer shells having ordered pores with a median pore size ranges from about 15 to about 1000 Å with a pore size distribution (one standard deviation) of no more than 30% of the median pore size, wherein the ordered pores produce at least one X-ray diffraction peak between 0.01° and 10° of the 2θ scan range; wherein the particles have a specific surface area of from about 5 to about 1000 m wherein the particles have a median size range from about 0.5 μm to about 100 μm with a particle size distribution (one standard deviation) of no more than 15% of the median particle size; wherein the particles comprise a metal oxide selected from silica, alumina, titania or zirconia.