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AssigneeMobil Oil Corporation
InventorsMichael E. Landis, Brent A. Aufdembrink, Pochen Chu, Ivy D. Johnson, Garry W. Kirker, Nancy M. Page, Mae K. Rubin
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Layered chalcogenide materials of high thermal stability and surface area which contain interspathic polymeric chalcogenides such as polymeric silica are prepared by ion exchanging a layered metal oxide, such as layered titanium oxide, with organic cation, to spread the layers apart. A compound such as tetraethylorthosilicate, capable of forming a polymeric oxide, is thereafter introduced between the layers. The resulting product is treated to form polymeric oxide, e.g. by hydrolysis, to produce the layered oxide material. The resulting product may be employed as catalyst material in the conversion of organic compounds.
A method for preparing a layered material containing an interspathic polymeric chalcogenide of at least one element selected from Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA, and VIIIA of the Periodic Table, which method comprises:
A thermally stable composition comprising a non-swellable layered chalcogenide of an element having an atomic number of 4, 5, 12 to 15, 20 to 33, 38 to 51, 56 to 83 and greater than 90, inclusive, said layered metal chalcogenide comprising an interspathic polymeric chalcogenide of an element selected from Groups IB, IIB. IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA, and VIIIA of the Periodic Table.
A thermally stable composition comprising a layered chalcogenide of an element having an atomic number of 4, 5, 12 to 15, 20 to 33, 38 to 51, 56 to 83 and greater than 90, inclusive, said layered metal chalcogenide comprising an interspathic polymeric chalcogenide of an element selected from Group IVB of the Periodic Table, and said composition having a d-spacing greater than about 20 angstroms.
A layered titanate composition comprising interspathic polymeric silica, and having the X-ray diffraction pattern set out in Table 1.
Dependencies are inferred from the claim text.