Rare earth--ZSM-5/ZSM-11 cocrystalline zeolite

Details Rare earth--ZSM-5/ZSM-11 cocrystalline zeolite Rare earth--ZSM-5/ZSM-11 cocrystalline zeolite

1995-12-19

1999-02-09

Marcheschi, Michael

Chemistry of inorganic compounds

Zeolite

Structure defined x-ray diffraction pattern

423708, 423713, 423DIG22, 423DIG29, 502 77, C01B 3936, C01B 3938, C01B 3946

Patent

active

058690212

ABSTRACT:
A rare earth-containing zeolite with a cocrystalline structure of ZSM-5 and ZSM-11, wherein the weight ratio of the moiety having the crystalline structure of ZSM-5 to the moiety having the crystalline structure of ZSM-11 is 0.1 to 10, which has, in the sodium form, the X-ray diffraction pattern set forth in Table 1, and in its originally synthesized anhydrous state, a chemical formula in terms of mole ratios of oxides as follows: 0.1-1.0 Na.sub.2 O.0.01-1.0 RE.sub.2 O.sub.3.Al.sub.2 O.sub.3.20-300 SiO.sub.2. Said zeolite has good acid hydrothermal stability and resistance against impurity contamination, and is useful as catalyst in various hydrocarbon conversions.

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Inorganic Cation Exchange Properties of Zeolite; pp. 58-79; Stephen T. Win et al.; 1983, IntrazeoliteChemistry (No Month).

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