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US 5,961,951 AGranted
Synthesis ZSM-48
AssigneeMobil Oil Corporation
InventorsCarrie L. Kennedy, Louis D. Rollmann, John L. Schlenker
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AssigneeMobil Oil Corporation
InventorsCarrie L. Kennedy, Louis D. Rollmann, John L. Schlenker
Estimating the term…
The present invention relates to a composition and a method for preparing ZSM-48 exhibiting an X-ray pattern having values as set forth in Table 1 of the specification. The method of the present invention includes (a) preparing a reaction mixture; and (b) maintaining the mixture under crystallization conditions until crystals of the ZSM-48 are formed. The mixture includes a source of silica, a source of trivalent metal oxide, an alkali metal oxide, ethylenediamine and water. The mixture, in terms of mole ratios of oxides, has the following composition ranges: SiO.sub.2 /Me.sub.2 O.sub.3 : 100 to 1500, M.sub.2/n O/SiO.sub.2 : 0 to 0.2, RN/SiO.sub.2 : 2.0 to 5.0, OH.sup.- /SiO.sub.2 : 0 to 0.3, and H.sub.2 O/SiO.sub.2 : 10 to 100, wherein Me is a trivalent metal, M is an alkali metal and RN is ethylenediamine.
A method for preparing ZSM-48 which comprises:
A composition capable of forming crystals of ZSM-48 structure upon crystallization which comprises a reaction mixture comprising a source of silica, a source of trivalent metal oxide, an alkali metal oxide, and ethylenediamine in a solvent phase comprising water, wherein said mixture, in terms of mole ratios of oxides, has the following composition ranges:
Dependencies are inferred from the claim text.