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Resin beads and use in processing of aqueous solutions

一种水性溶液、树脂珠的技术，应用在应用、糖的生产、糖汁的净化等方向，能够解决生产困难、昂贵等问题

Active Publication Date: 2019-08-02
DDP SPECIALTY ELECTRONICS MATERIALS US 8 LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of such uniform aggregates of small resin beads is difficult and expensive

Method used

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  • Resin beads and use in processing of aqueous solutions
  • Resin beads and use in processing of aqueous solutions
  • Resin beads and use in processing of aqueous solutions

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0100] Example 1: Preparation of resin beads

[0101] Use resin beads DOWEX TM BSR-1. These beads are macroporous, contain styrene / divinylbenzene copolymer, and contain side chain groups of the structure (S18):

[0102]

[0103] where the symbol

[0104]

[0105] Indicates the polymer backbone. The two right-hand carbon atoms of (S18) and the hydroxyl groups attached to them are in the cis-diol configuration. To prepare the resin beads of the present invention, 1.5 L of DOWEX TM BSR-1 beads with 2 L of H 3 BO 3 A 2.0 N solution in deionized water was mixed. The mixture was stirred at room temperature (about 23°C) for 2 hours. The excess liquid was then decanted, and the resin was rinsed with deionized water until the pH of the rinse water was about 7. Consider the side chain groups shown above all converted to the following structure (S19):

[0106]

[0107] The aggregate of resin beads produced in Example 1 had

[0108] Harmonic mean diameter of 611 μm an...

example 2

[0109] Example 2: Pulse test on multiple solutes

[0110] Pulse tests were performed on the following solutes:

[0111] Table 1: List of solutes

[0112]

[0113] The pulse test was performed as follows. Solutions of single solutes were prepared at 20% by weight of solutes in water. A column with a height of 91 cm and a diameter of 2.7 cm was used. The resin volume packed in the column was 526 mL. 26.3 mL of the solution was placed on top of the resin in the column. Elution was performed with water at 2.0 column volumes / hour (17.47 mL / min) at 60°C. "Contrast" ("Com") testing using DOWEX TM The BSR-1 resin was performed and the "Example" ("Ex") test was performed using the resin prepared by the method of Example 1.

[0114] For each pulse test, determine the retention time and width. Then, for a given resin type and a given pair of solutes, the resolution is determined using the resolution calculation method as defined by Fornstedt et al. as described above. The res...

example 3

[0139] Example 3: Separation of Mixed Sugar Solution

[0140] The following comparative resins were tested:

[0141] CR-2 = Macroporous resin similar to the resin of Example 1, with the same harmonic mean diameter (611 μm) and the same coefficient of uniformity (1.39). However, instead of (S19), the side chain group is (S20):

[0142]

[0143] CR-3 = Macroporous resin similar to CR-2, but with a harmonic mean diameter of 640 μm and a coefficient of uniformity of less than 1.1.

[0144] CR-4=Resin similar to CR-2, but it is a gel resin, has a harmonic mean diameter of 320 μm and has a coefficient of uniformity of less than 1.1.

[0145] CR-5=DOWEX TM BSR-1. The resin was similar to Example 1 except that it had side chain groups (S18) instead of side chain groups (S19).

[0146] An aqueous sugar solution was prepared containing 42% by weight fructose, which also contained glucose, and which had 50.05% by weight dissolved solids. The sugar concentration is 50 Brix.

[...

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Abstract

The present invention provides a method of processing an aqueous solution, wherein the aqueous solution comprises one or more dissolved sugar, one or more dissolved sugar alcohol, or a mixture thereof, wherein the method comprises bringing the aqueous solution into contact with a collection of resin beads, wherein the resin beads comprisefunctional groups of structure (S1).

Description

technical field [0001] A common industrial target is the treatment of aqueous solutions. One class of aqueous solutions of interest is those containing one or more sugars and / or one or more sugar alcohols. It is desirable to treat such aqueous solutions in a manner that separates some or all of the sugars and / or sugar alcohols from each other. It is also desirable to treat such aqueous solutions in a manner that enables separation of some or all of the sugars and / or sugar alcohols from other compounds that may be present in the aqueous solution. It would also be desirable to be able to handle aqueous solutions having a pH below 6. Background technique [0002] In the past, aqueous solutions of sugars have been treated to separate sugars by using resin beads with sulfonic acid groups in the calcium form. It has been found that in order to effectively separate sugars, such resin beads need to exist as an aggregate of resin beads having both a relatively small average diamet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08F8/42C08J3/12
CPCC08F8/42B01J45/00C07H1/06C13B20/12C13K3/00C13K13/00B01D15/00B01D15/1821B01D15/361C07H3/00C07H3/02C07H3/04C07H3/06C08F212/08C08F212/36C08F212/24C08F212/26B01J20/28016C08L2201/54B01J20/289C08L25/08B01J20/265C08J2205/00B01J20/28004C08J3/12B01J2220/52C13B20/126B01J20/3085B01D15/10
Inventor C-S·李C·H·马丁D·J·吉斯克C·R·艾彻
Owner DDP SPECIALTY ELECTRONICS MATERIALS US 8 LLC
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