Method for producing heterometal hydrogenation catalysts
By employing a controlled reduction process with a specific reducing gas, the method addresses catalyst deactivation and performance issues, achieving efficient conversion of dicarboxylic acids to dialcohols and high yield of cyclohexanedimethanol.
Patent Information
- Application Number
- JP2023544684
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-02-01
- Filing Date
- 2022-01-19
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2042-01-19
AI Technical Summary
Existing methods for manufacturing heterogeneous metal hydrogenation catalysts face challenges such as respiratory toxicity, environmental pollution, and inefficient reduction conditions, leading to catalyst deactivation and performance issues, especially in dissimilar metal catalysts.
A method involving the use of a specific reducing gas under controlled temperature and gas supply conditions to reduce heterometal catalysts, ensuring uniform alloy formation and preventing segregation or sintering, using a reactor with supported heterometal compounds.
This approach allows for the production of a catalyst with uniform active metal distribution, enhancing catalytic activity and efficiency in converting dicarboxylic acid groups to dialcohol groups, with a yield of cyclohexanedimethanol exceeding 70%.