Catalyst for methacrolein oxidation and method for making...

Details Catalyst for methacrolein oxidation and method for making... Catalyst for methacrolein oxidation and method for making...

2005-07-25

2010-06-08

Hailey, Patricia L (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

C502S209000, C502S210000, C502S211000, C502S212000, C502S213000, C502S214000, C502S300000, C502S302000, C502S305000, C502S324000, C502S325000, C502S340000, C502S344000, C502S349000, C502S353000, C562S535000, C568S598000, C560S208000

Reexamination Certificate

active

07732367

ABSTRACT:
A catalyst for oxidation of unsaturated and/or saturated aldehyde to unsaturated acids is disclosed where the catalyst including at least molybdenum (Mo), phosphorus (P), vanadium (V), bismuth (Bi), and a first component selected from the group consisting of potassium (K), rubidium (Rb), cesium (Cs), thallium (Tl), or mixtures or combinations thereof, where the catalyst has at least 57% medium pores and a nitric acid to molybdenum mole ratio of at least 0.5:1 or at least 6.0:1 moles of HNO3per mole of Mo12. Methods for making and using such catalysts are also disclosed.

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