| 摘要 |
A synthetic, crystalline, porous material containing oxides of silicon and boron is disclosed, which, in the non-calcined state, has the following empyrical formula: mM2/nO,pR,xM<I>2O3,(1-x)B2O3,yM<II>O2,qH2O and, in the calcined and anhydrous state, has the following empyrical formula: mM2/nO,xM<I>2O3,(1-x)B2O3,yM<II>O2, wherein : M is an H<+>, NH @ or a metal cation with valence n, M<I> is a trivalent metal selected from Al, Cr, Fe, Ga, V or Mn, M<II> is either Si or mixtures thereof with such tetravalent metals as Ge, Ti or Zr, R is piperidine or hexamethyleneimine, m has a value comprised within the range of from 0.1 to 1.5, x has a value comprised within the range of from 0 to 0.9, y has a value greater than 2 and preferably comprised within the range of from 5 to 300, p has a value greater than zero and smaller than 3, and q has a value greater than zero and smaller than 5, and having a volume of the pores larger than 0.3 cm<3>/g. |
