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US 12,722,147 B2Granted
Method for preparing catalyst for selective hydrogenation of cyclododecatriene and catalyst prepared by preparation method
AssigneeHanwha Solutions Corporation
InventorsYoungjin Kim, Namjin Jang
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Abstract
The present invention relates to a method for preparing a catalyst for selective hydrogenation of cyclododecatriene and a catalyst prepared by the preparation method. The method for preparing a catalyst for selective hydrogenation of cyclododecatriene of the present invention includes: (S1) preparing a ruthenium complex by reacting ruthenium chloride with formaldehyde; and (S2) adding triphenylphosphine to the ruthenium complex and then allowing a reaction to proceed.
Claims7
A method for preparing a catalyst for selective hydrogenation of cyclododecatriene, the method comprising:
- (S1) preparing a ruthenium complex by reacting ruthenium chloride with formaldehyde without other solvent;
- and
- (S2) adding triphenylphosphine to the ruthenium complex and then allowing a reaction to proceed and removing by-products
- wherein, the step of S1 and the step of S2 are two separate steps.
1 more element
Dependencies are inferred from the claim text.