Synthesis of carbonylation catalysts using alkylaluminum reduction
A novel method using trialkylaluminum or halodialkylaluminum to form cobalt carbonyl species at lower pressures and temperatures addresses the challenges of existing carbonylation catalyst synthesis, achieving stable and efficient catalyst production without the need for Co2(CO)8, thereby enhancing the carbonylation process.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NOVOMER INC
- Filing Date
- 2024-06-14
- Publication Date
- 2026-06-22
AI Technical Summary
Existing methods for synthesizing carbonylation catalysts require high-pressure, high-temperature conditions and the use of unstable Co2(CO)8, leading to handling difficulties and the formation of new byproducts that inhibit the carbonylation process.
A method involving the use of trialkylaluminum or halodialkylaluminum to form cobalt carbonyl species at lower pressures and temperatures, using simple cobalt salts and alkylaluminum compounds as reducing agents, without the need for pre-formed Co2(CO)8, and forming complexes with porphyrin metals to create carbonylation catalysts.
This approach eliminates the need for high-pressure and high-temperature conditions, reduces byproduct formation, and enables efficient synthesis of carbonylation catalysts with improved stability and reaction rates.
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