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US 11,912,653 B2Granted
Noble metal-transition metal complex catalyst supported on carbon-coated silica-alumina support, and preparation method therefor
AssigneeHanwha Solutions Corporation
InventorsJeong Kwon Kim, Wan Jae Myeong, Sun Woo Yook, Bong Sik Jeon
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Abstract
Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.
Claims12
A noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina carrier, wherein
- 40 parts by weight to 95 parts by weight of alumina (Al2O3) and 5 parts by weight to 60 parts by weight of silica (SiO2) are included based on 100 parts by weight of the carbon-coated silica-alumina carrier;
- and
- 2 parts by weight to 20 parts by weight of the noble metal and the transition metal are included based on 100 parts by weight of the carbon-coated silica-alumina carrier,
- wherein the noble metal includes one or more selected from the group consisting of palladium (Pd), rhodium (Rh), ruthenium (Ru), and platinum (Pt),
- the transition metal includes one or more selected from the group consisting of tin (Sn), iron (Fe), rhenium (Re), and gallium (Ga), and
- an amount of the transition metal is in a range of 1 part by weight to 10 parts by weight based on 100 parts by weight of the carbon-coated silica-alumina carrier.
3 more elements
Dependencies are inferred from the claim text.