Lg Chem, Ltd

Basf Aktiengesellschaft

Jung Hwa Kang

Byung Yul Choi

Hyun Jong Shin

Yeon Shick Yoo

Won Ho Lee

Ju Yeon Park

Min Ho Kil

Young Hyun Choi

Young Hyun Choe

Woo Jae Kim

Sang Heup Moon

In Young Ahn

Yeon Park Ju

The present invention provides a method for producing a catalyst comprising an inert carrier an a mixed metal oxide as a catalytically active component supported on the inert carrier, the method comprising the steps of: a) adding organic acid(s) into solvent(s) and salt of each metal component which will form a mixed metal oxide, to prepare a catalyst precursor solution for the mixed metal oxide; b) adjusting pH of the catalyst precursor solution using a basic solution; c) containing the catalyst precursor solution for the mixed metal oxide, of which the pH is adjusted, on the inert carrier, d) removing the solvent(s); and e) calcining the resultant from step d. The catalyst produced by the present method has improved reproducibility, activity and yield, while maintaining a high selectivity.

Method for preparing a catalyst for partial oxidation of acrolein

The present invention describes a Pd-catalyst which further contains La, Ti, Nb, K or Si. The Pd-catalyst has a high ethylene selectivity even after a low temperature reduction in the selective hydrogenation of acetylene to ethylene. The invention also relates to the production of the catalyst. A catalyst of the invention consists essentially of 0.05 to 2.0% by weight, based on the supported catalyst, of palladium and one or two metals chosen form the group consisting of lanthanum, niobium, titanium, potassium and silicon. The catalyst can be prepared by the following procedure.

Palladium-based catalyst for selective hydrogenation of acetylene

The present invention relates to a method for preparing a catalyst for partial oxidation of propylene, particularly a method for preparing a catalyst for preparing an acrylic acid, using an organic acid such as a citric acid, maleic acid and oxalic acid. The complex oxide catalyst according to the invention, when used in the gas phase catalytic oxidation of propylene, may produce acrolein in high yield.

Method for preparing a catalyst for partial oxidation of propylene

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Seoul, South Korea

Jung Hwa Kang