Purification and decolouring agent cane juice, syrup and its preparation method and application in sugar refining technology

A decolorizing agent and syrup technology, which is applied in the direction of using adsorbent purification, etc., can solve the problems that ion exchange resins are easily polluted, difficult to recycle and process, and the number of resin regeneration is too many, so as to reduce fouling and reduce costs. Small size, improved heat transfer performance and throughput

Inactive Publication Date: 2006-04-12
张永达 +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ion exchange resins have been used in refining sugar factories for decades, beet sugar factories also use a lot. In the manufacture of refined sugar and high-grade edible syrup, most of them also use ion exchange resins to decolorize and purify the sugar solution. , the ion exchange resin is easily polluted, its performance decreases rapidly, and its life is short. However, the clear juice of the sugarcane sugar factory has a deep color and high ash content, resulting in a large burden on the resin, high technical difficulty, many times of resin regeneration, high cost, and waste liquid. It is also quite difficult to deal with, and the whole process is too complicated. In addition, the colloid pollutes it and accumulates calcium ions to form scales and block the resin, which is not easy to regenerate, has a short life, is difficult to recycle and process, and needs to be landfilled, causing secondary pollution. Therefore, it is difficult for cane sugar factories to apply ion exchange resins

Method used

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  • Purification and decolouring agent cane juice, syrup and its preparation method and application in sugar refining technology
  • Purification and decolouring agent cane juice, syrup and its preparation method and application in sugar refining technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0034] Embodiment 1-1. put 100 kilograms of chitosan (particle size 1-3mm) into 200 kilograms of concentrations and be 30% acetic acid solution, stir evenly, normal temperature airtight reaction 6-8 hour, (when the reaction is completed, the particle is translucent shape and soluble in water). Then it is sealed and stored for 35 days, so that strong hydrogen bonds are formed inside and outside the macromolecular chain molecules, and it presents a crystalline phase state, thereby cross-linking to form a three-dimensional network structure, and polymerizing to form an insoluble water-soluble aminodextran acetate resin. The gum is baked at ℃ until the water content is 50%, crushed into 1-3mm colloidal particles, and packaged as a finished product.

[0035] Note: Another method is to react the reactant at room temperature for 6-8 hours, then dry it at 40°C-60°C for 24-48 hours, and then crush it into 1-3mm solid resin particles. In this method, the crystallinity and The degree of...

Embodiment 1-2

[0036] Embodiment 1-2. put 100 kilograms of chitosan (particle size 1-3mm) into 300 kilograms of concentration and be 45% citric acid solution, stir well, normal temperature airtight reaction 18-24 hour, (when the reaction is completed, the particle is half transparent and soluble in water). Then it is sealed and stored for 50 days, so that strong hydrogen bonds are formed inside and outside the polymer chain molecules, and it presents a crystalline phase state, thereby cross-linking to form a three-dimensional network structure, forming an insoluble water-soluble aminodextran citrate resin, which is heated at 60°C Bake the gum until the water content is 40%, crush it into 1-3mm colloidal particles, and pack the finished product.

[0037] Note: Another method is to react the reactant at room temperature for 18-24 hours, then dry it at 40°C-60°C for 24-48 hours, and then crush it into 1-3mm solid resin particles. The degree of cross-linking is not high.

Embodiment 1-3

[0038] Embodiment 1-3. put 350 kilograms of chitosan (particle size 1-3mm) into 700 kilograms of concentration and be 20% hydrochloric acid solution, stir well, normal temperature airtight reaction 4-8 hour, (when the reaction is completed, the particle is translucent shape and soluble in water). Then it is sealed and stored for 35 days, so that strong hydrogen bonds are formed inside and outside the macromolecular chain molecules, and it presents a crystalline phase state, thereby cross-linking to form a three-dimensional network structure, and forming an insoluble water-soluble aminodextran hydrochloride resin. Bake the gum until the water content is 50%, crush it into 1-3mm colloidal particles, and pack the finished product.

[0039] Note: Another method is to react the reactants at room temperature for 4-8 hours, then dry them at 40°C-60°C for 24-48 hours, and then crush them into 1-3mm solid resin particles. The degree of cross-linking is not high.

[0040] Two, use ami...

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Abstract

A purifying and decoloring agent for the cane juice or syrup in sugar refinery is prepared from chitosan through catalytic reaction between chitosan and the solution of acetic acid, citric acid or hydrochloric acid to obtain the polyose aminogluconate, and polymerizing to obtain aminoglucosan salt insoluble in water and deluted acid.

Description

technical field [0001] The invention relates to a cane juice and syrup purification and decolorization agent for the sugar industry and a preparation method thereof, as well as the application of the cane juice and syrup purification and decolorization agent in sugar production. Background technique [0002] One of the keys to quality in sugar production, including sugar cane or sugar beet production, is the clarification and decolorization process. A lot of energy has been invested in research, and many additives for clarification and decolorization have been developed, such as polyacrylamide for enhancing the clarification effect of cane juice, various refining aids for improving sugar cooking conditions (such as sucrose ester One class) and so on no less than dozens of kinds, domestic and foreign public documents just report a lot of decolouring, clarifying agents that decolorize sugarcane juice and molasses, we retrieved and extracted the following documents: 1. [title] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13D3/12C13B20/12
Inventor 张永达陈卓平张宇吴全彬
Owner 张永达
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