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US 2013/0281287 A1Published application
Nanocrystalline Copper Oxide and Method for the Production thereof
AssigneeSued-Chemie IP GmbH & Co. KG
InventorsHans-Joerg Woelk, Alfred Hagemeyer, Frank Grossmann, Oliver Wegner
Life of this patent
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Abstract
A nanocrystalline supported or unsupported copper oxide with a residual carbon content of <10% and a BET surface area >95 m2/g. Further, a method for the production of a supported, or unsupported nanocrystalline copper oxide is disclosed, as well as the use thereof in catalysis, in particular in the steam reforming of methanol or in the hydrogenation of esters.
Claims11
1-7. (canceled)
Method for the production of nanocrystalline copper oxide with a BET surface area >95 m2/g comprising the steps of
- a) the introduction of a copper starting compound into a reaction chamber by means of a :carrier fluid, and wherein the copper starting compound is introduced into the reaction chamber in the form of a solution, slurry, suspension or in solid aggregate state,
- b) a thermal treatment of the copper starting compound in a treatment zone of the reaction chamber by means of a pulsating flow at a temperature of from 200 to 500° C.,
- c) the formation of nanocrystalline copper oxide material,
- d) the discharge of the nanocrystalline copper oxide material obtained in steps b) and c) from the reactor wherein the nanocrystalline copper oxide has a primary particle size of from 4 nm to 20 nm for primary crystallites and a secondary particle size of from 20 nm to 100 nm for secondary crystallites.
1 more element
17-20. (canceled)
Dependencies are inferred from the claim text.