Pillared interstratified

Preparation of pillared products. The conventional pillared montmorillonite and the pillared interstratified I/M were prepared by addition of a volume of the ACH-solution calculated to give an Al/clay ratio of 5 mmoles per g to a dispersion (1 g/1) of the clay. 

Figure 2. X-ray powder diffraction patterns of air dried, oriented samples of pillared interstratified illite/montmorilIonites and of the corresponding starting clays.

Properties of Pillared Interstratified Illite/Montmorillonites and of Pillared Reference Montmorillonite... 

Pillaring solutions. Conventional Al203-pillared montmorillonite and interstratified illite/montmorillonites were prepared using an aluminum chlorohydrate (ACH) solution having an Al-concentration of 0.25 M and an OH/Al-ratio of 2.5, prepared by dilution of a commercial ACH-solution (Locron L, Hoechst). The solution was aged for 20 hr. after dilution, prior to use for preparation of pillared products. 

Jie, G. J., M. E. Ze, and Y. Zhiquing. 1986. A class of pillared interlayered clay molecular sieve products with regularly interstratified mineral structure. Eur. Pat. Appl. 197012. 

---