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US 2002/0153328 A1Published application
Process for removing pyrophoric catalyst
OwnerWilliam Tullyinventor
Life of this patent
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Abstract
A batch process for carrying out a hydrogenation reaction comprises mixing a pyrophoric catalyst with reactants and solvents to form a reaction mixture in a reaction vessel. Hydrogen is added to the reaction vessel. After hydrogenation, the desired hydrogenation product is removed from the reaction vessel and the pyrophoric catalyst-rich material from the reaction vessel is delivered to a pressure filter. Water is added to the pyrophoric catalyst-rich material in the filter and the spent pyrophoric material is removed from the pressure filter in a water wet form.
Claims6
A batch process for carrying out a hydrogenation reaction comprising the steps of:
- (a) providing a reaction vessel;
- (b) mixing a pyrophoric catalyst with reactants and solvents to form a reaction mixture in the reaction vessel;
- (c) adding hydrogen to the reaction vessel;
- (d) after hydrogenation, removing the desired hydrogenation product from the reaction vessel and retaining pyrophoric catalyst-rich material in the vessel;
- (e) providing a pressure filter comprising a container having an upper rim closable by a removable lid, the lid having a main inlet for pyrophoric catalyst-rich material;
- (f) mounting a removable filter bag in the container;
- (g) closing the lid;
- (h) delivering the pyrophoric catalyst-rich material from the reaction vessel through the main inlet to the removable filter bag;
- (i) adding water to the pyrophoric catalyst-rich material in the filter bag to saturate the pyrophoric catalyst-rich material in the filter bag;
- (j) opening the lid of the pressure filter;
- and
- (k) removing the filter bag containing the spent pyrophoric material from the pressure filter in a water wet form.
9 more elements
Dependencies are inferred from the claim text.