I. Product Introduction
MCM-49 zeolite belongs to the MWW
layered topological structure and consists of three sets of independent pore
systems. The layers are connected by ten-membered rings with an effective pore
size of 0.40nm×0.54nm, forming large supercages with dimensions of
0.71nm×0.71nm×1.82nm; within the layers, there exists a two-dimensional,
sinusoidal, intersecting sinusoidal network pore system with an effective pore
size of 0.40nm×0.59nm; the outer surface of the crystal is also distributed
with large half-cages with a depth of 0.70nm and dimensions of
0.70nm×0.71nm×0.71nm.
II. Performance Indicators
Analytical item
Unit
Analytical result
Analytical method
Appearance
white powder
SiO2:P2O5:Al2O3
20-35
XRF
Relative crystallinity
%
≥90
X-ray diffractometer
Total specific surface area
㎡/g
≥450
N2 Adsorption