R. Wendelbo et al., SYNTHESIS, CHARACTERIZATION AND CATALYTIC TESTING OF SAPO-18, MGAPO-18, AND ZNCZPO-18 IN THE MTO REACTION, Applied catalysis. A, General, 142(2), 1996, pp. 197-207
SAPO-18, MgAPO-18 and ZnAPO-18 have been successfully synthesised usin
g TEAOH as organic additive to the synthesis gel. SAPO-18 has catalyti
c properties comparable to SAPO-34, whereas the MeAPO-18s had much hig
her selectivities to C-3(=)-C-4(=) and shorter catalytic lifetime than
SAPO-18.