Resin Particles for Sugar Decolorization with Controlled Amino Groups
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Solution Overview
Problem
Existing resin particles used for decolorizing sugar solutions, particularly those containing monosaccharides, face challenges in complete regeneration and osmotic stability, limiting their effectiveness and reusability.
Innovation Solution
Resin particles comprising vinyl aromatic polymers with a high weight percentage of polymerized units, methylene bridge groups, amino groups, and controlled quaternary ammonium content, along with specific water retention and surface area characteristics, are developed to enhance decolorization efficiency and osmotic stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional resin particles are used for decolorizing sugar solutions, then color removal is achieved, but regeneration is incomplete and osmotic stability is poor
Solution Approach 1:
The invention changes the chemical composition parameters of the resin by strictly controlling the amino group content (0.1-1.4 eq/L) and quaternary ammonium group content (≤0.05 eq/L or absent), while using 90% or more vinyl aromatic monomers with methylene bridge groups. These parameter changes result in improved osmotic stability and complete regeneration capability without sacrificing decolorization performance.
2Productivity
If resin particles with high amino group content are used to enhance decolorization, then color removal efficiency improves, but osmotic stability deteriorates
Solution Approach 1:
The invention optimizes the amino group content parameter to a specific range (0.1-1.4 eq/L) and combines it with 90% or more vinyl aromatic monomers containing methylene bridge groups. This parameter optimization achieves both high decolorization efficiency and improved osmotic stability, resolving the trade-off between these two properties.
3Ease of manufacture
If conventional resin composition is used to simplify manufacturing, then production is easier, but regeneration completeness and osmotic stability are compromised
Solution Approach 1:
The invention specifies precise compositional parameters (90%+ vinyl aromatic monomers, 0.1-1.4 eq/L amino groups, ≤0.05 eq/L quaternary ammonium groups) that guide the manufacturing process. While these specifications add some manufacturing complexity, they ensure consistent production of resin particles with improved osmotic stability and complete regenerability.
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 resin particles demonstrate superior decolorization capabilities and regeneration efficiency, with improved osmotic stability, allowing for effective reuse in sugar solution treatment.
Implementation Method 1
pass the aqueous solution through a bed of adsorbent particles, allowing the colored substances to become adsorbed onto the particles
Implementation Method 2
US 6,942,805 describes a process for decolorizing sugar juices by means of monodisperse ion exchangers, preferably anion exchangers
Data Source
AI summary
A collection of resin particles is provided, wherein the resin particles comprise one or more polymers; wherein the polymer comprises methylene bridge groups between aromatic rings; wherein the polymer comprises a total amount of amino groups bonded to the resin particles of 0.1 to 1.4 equivalents per liter of the collection of resin particles; wherein quaternary ammonium groups bonded to the polymer are either absent or else are present in an amount of 0.05 equivalents or less per liter of the collection of resin particles; wherein the resin particles have water retention capacity of 40% to 50% by weight of water based on the weight of the collection of resin particles; and wherein the resin particles have surface area of 100 m2/g or less.