FDCA Preparation Using Copper-Manganese Catalysts and One-Pot Oxidation
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Solution Overview
Problem
The existing methods for preparing 2,5-furandicarboxylic acid (FDCA) are costly due to the use of noble metal catalysts and harsh reaction conditions, and they require additional extraction steps to recover the catalysts, complicating the process.
Innovation Solution
A method using biomass materials, a dehydration catalyst, and a solid copper-manganese nanomaterial oxidation catalyst to convert 5-hydroxymethylfurfural into FDCA through a two-step one-pot reaction, eliminating the need for noble metal catalysts and harsh conditions, and allowing for easy separation and recycling of the catalysts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If noble metal catalysts are used to prepare FDCA, then the reaction can proceed under strong alkaline or high temperature conditions, but the production cost increases and the catalyst stability deteriorates
Solution Approach 1:
The patent replaces expensive noble metal catalysts (gold, palladium, platinum) with inexpensive base metal catalysts (iron, copper, manganese, cobalt, zinc). Although base metals are less stable than noble metals, their low cost and ease of recovery make them economically viable, resolving the contradiction between catalyst stability and production cost.
Solution Approach 2:
The patent implements a catalyst recovery system where base metal catalysts are separated from the reaction mixture and recovered for reuse. This recovery process addresses the stability issue by enabling catalyst recycling, thereby reducing production costs while maintaining reliable catalytic performance.
2Productivity
If noble metal catalysts are used in FDCA preparation, then the desired chemical transformation can be achieved, but additional extraction steps are required to recover the catalysts, complicating the process
Solution Approach 1:
The patent uses base metal catalysts that can be easily separated and recovered, eliminating the need for complex extraction steps required for noble metal catalysts. This simplifies the overall process while maintaining reaction efficiency.
Solution Approach 2:
The patent employs extraction methods to separate and recover base metal catalysts from the reaction mixture. This extraction approach simplifies the process by providing a straightforward recovery mechanism, avoiding the complex steps needed for noble metal catalyst recovery.
3Productivity
If harsh reaction conditions are used to prepare FDCA, then the reaction can proceed with noble metal catalysts, but the production cost increases and environmental impact worsens
Solution Approach 1:
The patent changes the reaction parameters by using base metal catalysts that operate under milder conditions compared to noble metal catalysts. This allows the reaction to proceed at lower temperatures and pH levels, reducing production costs and environmental impact while maintaining acceptable reaction rates.
Solution Approach 2:
The patent replaces expensive noble metal catalysts requiring harsh conditions with inexpensive base metal catalysts that function under milder conditions. This substitution reduces production costs and environmental impact while maintaining productivity.
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
This method reduces production costs by simplifying the process, increasing yield, and providing economic value to agricultural waste by converting it into high-value FDCA, while avoiding the need for purification steps and using environmentally friendly solvents.
Implementation Method 1
mixing a biomass material, a dehydration catalyst and a first solvent to obtain a dehydration precursor; conducting a dehydration reaction on the dehydration precursor
Implementation Method 2
mixing the dehydration mixture, an oxidation catalyst, an oxidant and a second solvent to obtain an oxidation precursor; conducting an oxidation reaction on the oxidation precursor
Implementation Method 3
The oxidation catalyst is a solid copper-manganese nanomaterial
Data Source
AI summary
A method for preparing 2,5-furandicarboxylic acid includes the steps of mixing a biomass material, a dehydration catalyst and a first solvent to obtain a dehydration precursor; conducting a dehydration reaction on the dehydration precursor at 120-170° C. for 30-250 minutes to obtain a dehydration mixture containing 5-hydroxymethylfurfural; mixing the dehydration mixture, an oxidation catalyst, an oxidant and a second solvent to obtain an oxidation precursor; and conducting an oxidation reaction on the oxidation precursor at 60-90° C. for 2-12 hours to obtain an oxidation mixture containing 2,5-furandicarboxylic acid. The biomass material contains cellulose. The first solvent contains an ionic liquid, dimethyl sulfoxide and deionized water. The oxidation catalyst is a solid copper-manganese nanomaterial.