Particulate catalyst and preparation
AssigneeMPD Technology Corporation
InventorsPhilip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark, Paul D. Goodell
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Abstract
A particulate catalyst composition is provided by processing components in standard polymer processing equipment to obtain catalyst particles encradled in a porous, fiber-containing polymeric material.
Claims21
A particulate catalyst composition comprising a catalyst material encradled throughout a porous, fiber-containing polymeric material, said catalyst composition comprising, by weight, at least 50% to about 75% catalyst material, about 1% to about 5% fibrillated first polymer and the balance a support-contributing second polymer, and having porosity therethrough, said first polymer being a halogenated polyolefin, said composition being developed from a mixture of a catalyst material, a fibrillatable first polymer, a support-contributing second polymer and a major amount of a removable pore-former, said porosity being developed on removal of the pore-former from said mixture.
A method of preparing a particulate catalyst composition comprised of at least 50% by weight of catalyst material comprising subjecting precursor components comprising a fibrillatable first polymer, a support-contributing second polymer, a catalyst material and a major amount of a removable pore-former to conditions to fibrillate the first polymer, to mix intimately said components and to form a precursor composition containing a major amount of said pore-former, said first polymer being a halogenated polyolefin present in the precursor mixture in an amount of about 0.5 to about 5%, shaping the precursor composition and subsequently removing said pore-former from the shaped precursor composition, thereby producing interconnecting porosity throughout the material, with the active material encradled throughout the porous, fiber-containing material.
Dependencies are inferred from the claim text.