Hydroformylation Yield via PtI2 and PtBr2 Catalysts
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Solution Overview
Problem
Existing hydroformylation processes using platinum (Pt) with Cl2 suffer from low yield compared to other methods.
Innovation Solution
A process involving the presentation of an olefin, addition of a compound with specific formula, a Pt compound capable of forming a complex, and an iodine or bromine compound, followed by the supply of CO and H2, with heating to convert the olefin into an aldehyde, utilizing PtI2 or PtBr2 for enhanced yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If PtCl2 is used as catalyst in hydroformylation process, then the process is simple and easy to implement, but the yield of aldehyde is low
Solution Approach 1:
The patent changes the chemical composition parameters of the catalyst system by replacing PtCl2 with PtI2 or PtBr2 compounds. This parameter change in the catalyst's halogen component directly improves the aldehyde yield from low levels to significantly higher levels while maintaining the overall simplicity of the hydroformylation process implementation
2Productivity
If PtI2 or PtBr2 is used instead of PtCl2, then the yield of aldehyde is significantly increased, but the process complexity increases due to additional compound additions
Solution Approach 1:
The patent combines the functions of multiple additions into a single step by adding PtI2 or PtBr2 compounds that provide both the platinum catalyst and the iodine/bromine components simultaneously. This merging of steps achieves the high yield benefits while minimizing process complexity by reducing the number of separate addition operations
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The process significantly increases the yield of aldehyde production compared to traditional Pt/Cl2 methods, as demonstrated by experimental results showing higher yields with PtI2 and PtBr2 compared to PtCl2.
Implementation Method 1
addition of a Pt compound which is capable of forming a complex
Implementation Method 2
The procedure encompasses the following procedural steps: a) Submission of an olefin; b) Addition of a compound according to formula (I)... followed by the supply of CO and H2, with heating to convert the olefin into an aldehyde
Implementation Method 3
supply of CO and H2, with heating to convert the olefin into an aldehyde
Implementation Method 4
followed by the supply of CO and H2, with heating to convert the olefin into an aldehyde
Data Source
AI summary
Method for the hydroformylation of olefins using Pt and iodine or bromine.