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Regeneration method of decolorizing resin

A decolorizing resin and resin technology, applied in ion exchange regeneration, chemical instruments and methods, ion exchange bed cleaning/rinsing, etc., can solve problems such as high cost, large sodium chloride consumption, environmental pollution, etc., and achieve industrial application Prospects are good, the discharge of brine is reduced, and the effect of reducing production costs

Inactive Publication Date: 2016-06-01
YILI CHUANNING BIOTECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, the resin needs to be continuously regenerated, and in order to effectively regenerate, the current resin manufacturers generally recommend dynamic cleaning, that is, first use sodium hydroxide to clean on-line, and then use sodium chloride to regenerate on-line. It needs to consume a lot of sodium chloride, which not only requires a lot of operating costs, but also causes environmental pollution
[0004] At present, the way to solve this problem is to recycle sodium chloride to reduce the cost as much as possible and reduce environmental pollution. However, because the recycling cost is still very high, the cost of this treatment remains high.
Reducing the amount of sodium chloride in the regeneration process of decolorizing resin is the fundamental way to solve this problem, and there is no relevant improvement method at present

Method used

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  • Regeneration method of decolorizing resin

Examples

Experimental program
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Effect test

experiment example 1

[0023] Experimental example 1 Resin regeneration method of the present invention

[0024] 1. Regeneration method

[0025] Get the decolorization column (resin wherein is Rohm and Haas 98Cl, chlorine type strong base anion resin) used in the production of erythromycin by Yili Chuanning Biotechnology Co., Ltd., and regenerate according to the following method:

[0026] Take the decolorization column to be processed, such as figure 1 Shown, at first wash with the water of 1-2 times of volume of resin, then use P2 pump to send the sodium hydroxide solution that the concentration of 0.8 times of resin volume is 2.5% (g / g) to decolorization column from sodium hydroxide solution storage tank Clean in, then use the compressed air that pressure is 0.1 ± 0.05Mpa to push out liquid caustic soda, then wash with the water of 0.8 times of volume; Then use P3 pump to make the concentration of 0.8 times of resin volume be 8% (g / g) The sodium chloride solution is transported to the decolori...

experiment example 2

[0034] Experimental example 2 Resin regeneration method of the present invention

[0035] 1. Regeneration method

[0036] Get the decolorization column (resin wherein is Rohm and Haas 98Cl, chlorine type strong base anion resin) used in the production of erythromycin by Yili Chuanning Biotechnology Co., Ltd., and regenerate according to the following method:

[0037] Take the decolorization column to be processed, such as figure 1 Shown, at first wash with the water of 1-2 times of volume of resin, then use P2 pump to send the sodium hydroxide solution that the concentration of 1.0 times of resin volume is 4% (g / g) to decolorization column from sodium hydroxide solution storage tank Then use the compressed air with a pressure of 0.1 ± 0.05Mpa to push out the liquid caustic soda, and then wash it with 1 times the volume of water; g) The sodium chloride solution is transported to the decolorization column for static soaking and replacement of the pigment, each time for 30 minu...

experiment example 3

[0045] Experimental example 3 resin regeneration method of the present invention

[0046] 1. Regeneration method

[0047] Get the decolorization column (resin wherein is Rohm and Haas 98Cl, chlorine type strong base anion resin) used in the production of erythromycin by Yili Chuanning Biotechnology Co., Ltd., and regenerate according to the following method:

[0048] Take the decolorization column to be processed, such as figure 1Shown, at first wash with the water of 1-2 times of volume of resin, then use P2 pump to carry the sodium hydroxide solution that the concentration of 1.2 times of resin volume is 5.5% (g / g) to decolorization column from the storage tank of sodium hydroxide solution Then use the pressure of 0.1 ± 0.05Mpa compressed air to push out the liquid caustic soda, and then wash with 1.2 times the volume of water; g) The sodium chloride solution is transported to the decolorization column for static soaking to replace the pigment, each time for 80 minutes, an...

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Abstract

The invention discloses a regeneration method of decolorizing resin. The method comprises the following steps: firstly, cleaning a decolorizing resin column with fresh water with the volume being 1 to 2 times of that of the resin, then cleaning the decolorizing resin column with sodium hydroxide solution, pushing out liquid sodium hydroxide with compressed air, and then washing with water; secondly, leading in sodium chloride solution, soaking, then pushing out the sodium chloride solution with compressed air, repeating the process for 1 to 3 times, and finally washing with water. The invention further provides a recovery method of effluent brine during the regeneration process. The regeneration method can guarantee the regeneration effect of resin under the condition that the use level of sodium chloride is greatly reduced, greatly reduces the production cost, further reduces the discharge of brine, is environment-friendly, and has a very good industrial application prospect.

Description

technical field [0001] The invention relates to a regeneration method of decolorized resin. Background technique [0002] Resin usually refers to an organic polymer that softens or melts after being heated, has a tendency to flow under external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature. Broadly speaking, any polymer compound that can be used as a raw material for plastic products is called a resin. Decolorization resins are generally macroporous ion exchange resins. Due to their many types and uses, they are widely used in the food and pharmaceutical industries, such as: decolorization of active ingredients of Chinese herbal medicines, decolorization of amino acids and alkaloids, decolorization of sugar solutions, and decolorization of fruit acids. Among them, the chlorine type strong base type anion exchange resin is mainly used for the decolorization of the feed liquid in the production process of antibiotics such as erythromyc...

Claims

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Application Information

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IPC IPC(8): B01J49/00B01J49/50B01J49/60
Inventor 王奇宇赵鑫滕正华邓旭衡刘思川葛均友万阳浴
Owner YILI CHUANNING BIOTECH CO
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