Phosphorus-containing zeolite catalyst
AssigneeMobil Oil Corporation
InventorsStephen A. Butter, Warren W. Kaeding
Life of this patent
Estimating the term…
Abstract
This specification discloses, as a composition of matter, a phosphorus-containing zeolite and discloses a method for preparing it. The composition is a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, and containing phosphorus incorporated with the crystal structure thereof in an amount of at least about 0.78 percent by weight. The specification also discloses the use of the composition as a catalyst for the conversion of aliphatic compounds.
Claims32
A composition of matter comprising a crystalline aluminosilicate zeolite containing hydrogen ions, having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, said zeolite having been contacted with a phosphorus compound to combine therewith at least about 0.78 percent by weight of phosphorus.
The process for preparing a phosphorus-containing zeolite which comprises contacting a zeolite containing hydrogen ions with a phosphorus-containing compound and thereafter heating, wherein said zeolite containing hydrogen ions is a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index of about 1 to 12.
Dependencies are inferred from the claim text.