Resin Particles for Sugar Solution Decolorization
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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 with specific characteristics, including methylene bridge groups between aromatic rings, controlled amino group and quaternary ammonium levels, water retention capacity, and surface area, 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 patent modifies the chemical composition parameters of the resin particles by controlling the ratio of strong base groups (quaternary ammonium) to weak base groups (amino groups), and by optimizing the polymer matrix structure with methylene bridge groups between aromatic rings. These parameter changes enable the resin to maintain structural integrity under osmotic stress while allowing complete regeneration through controlled elution of adsorbed substances.
Solution Approach 2:
The resin particles are designed as composite structures combining multiple functional groups (quaternary ammonium groups, amino groups, and methylene bridge-crosslinked aromatic rings) within a single particle system. This composite approach allows the resin to simultaneously achieve osmotic stability from the crosslinked aromatic structure and effective regeneration through the combined action of strong and weak base groups.
2Productivity
If resin particles with high adsorption capacity are used, then decolorization efficiency is improved, but regeneration becomes incomplete
Solution Approach 1:
The resin particles exhibit local quality differentiation through the spatial distribution of strong base and weak base groups on the particle surface and within the matrix. The strong base groups (quaternary ammonium) provide high adsorption capacity for color removal, while the weak base groups (amino groups) facilitate complete regeneration by allowing reversible adsorption-desorption cycles. This local functional differentiation resolves the contradiction between high productivity 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, along with improved osmotic stability, allowing for effective reuse in sugar solution treatment processes.
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 process is provided for treating an aqueous solution, wherein the aqueous solution comprises dissolved sugar solids in an amount of 10% to 50% by weight based on the weight of the aqueous solution; wherein the dissolved sugar solids contain monosaccharides in an amount of 1% to 99% by weight based on the weight of the dissolved sugar solids; wherein the aqueous solution has ionic conductivity of 100 to 10,000 µS/cm and color content of 100 to 10,000 international color units; wherein the process comprises bringing the aqueous solution into contact with a collection of resin particles having specific properties. 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.