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US 10,744,487 B2Granted
Tablet-form copper manganese-based catalyst with increased stability against the action of acid
AssigneeClariant International Ltd.
InventorsManuel Pfanzelt, Martin Paulus, Frank Grossmann
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Abstract
The invention relates to a copper manganese-based catalyst on the basis of a tablet-form shaped catalyst body, comprising calcium aluminate as a binder, for hydrating carbonyl groups in organic compounds, characterised in that said shaped catalyst body comprises calcium aluminate in an amount of 0.5 to 20 wt. %. The invention also relates to the production of the catalyst and to the use of same in the hydration of carbonyl groups in organic compound.
Claims18
A shaped catalyst body comprising
- a material of the formula CuAlaMnbOd where a is a number greater than 0 and up to 2.5 and b is a number between 0.001 and 0.6, and d is chosen such that the overall charge of the empirical formula is zero;
- and
- a calcium aluminate binder, present in the shaped catalyst body as a phase distinct from the material of the formula CuAlaMnbOd, in an amount by weight of 0.5 to 20.0%;
- wherein the shaped catalyst body is in tablet form.
1 more element
A process for producing a shaped catalyst body comprising the following steps:
- mixing a metal-containing mixture comprising copper, manganese and aluminum with calcium aluminate, a lubricant and water;
- tableting the mixture of the metal-containing mixture, a calcium aluminate binder, lubricant, and water to obtain a tableted shaped body;
- and
- subjecting the tableted shaped body to thermal treatment at a temperature between 200 and 800° C. for a period between 30 min and 4 h,
- wherein the tableted shaped body after thermal treatment comprises
- a material of the formula CuAlaMnbOd, where a is between greater than 0 and up to 2.5 and b is between 0.001 and 0.6, and d is chosen such that the overall charge of the empirical formula is zero;
- and
- the calcium aluminate binder, present in the shaped body as a phase distinct from the material of the formula CuAlaMnbOd, in an amount by weight of 0.5 to 20.0%.
5 more elements
Dependencies are inferred from the claim text.