Ficoll synthesis process method

A synthesis process, polysucrose technology, applied in the field of synthesis process of water-soluble polymers, can solve the problems of complicated separation of catalyst and product, strong corrosion of equipment, pollution of waste liquid discharge, etc., to reduce product loss and equipment corrosion Small resistance, good water solubility

Active Publication Date: 2012-09-26
ADANA FOOD TECH LIUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a polysucrose synthesis process, which can solve the problems of complex separation of catalyst and product in acid or alkali catalysis, pollution of the environment by a large amount of waste liquid discharge, and strong corrosion to equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Dissolve 2 g of sucrose and 2 g of epichlorohydrin in 20 g (20 mL) of distilled water, and stir at room temperature to obtain a transparent solution. Dissolve 1.0mL Span 80 in 100mL chlorobenzene and mix it with the above solution, stir, and add it to the fixed bed reactor filled with D201 macroporous strong basic anion exchange resin to make it exchange in D201 macroporous strong basic anion exchange resin. Polymerize on the resin, react at 22°C for 4 hours, then raise the temperature to 50°C for 2 hours in a water bath. The product was eluted with absolute ethanol to obtain the polysucrose product with a yield of 91.6%.

Embodiment 2

[0014] Dissolve 2 g of sucrose and 5 g of epichlorohydrin in 20 g (20 mL) of distilled water, and stir at room temperature to obtain a transparent solution. Dissolve 1.4mL of Span 80 in 140mL of chlorobenzene and mix with the above solution, stir, add to the fixed bed reactor, make it polymerized on D201 macroporous strongly basic anion exchange resin, react at 27°C for 4.5 hours, and then Raise the temperature to 70°C for 2 hours in a water bath. The product was eluted with absolute ethanol to obtain the polysucrose product with a yield of 92.4%.

Embodiment 3

[0016] Dissolve 3 g of sucrose and 5 g of epichlorohydrin in 25 g (25 mL) of distilled water, and stir at room temperature to obtain a transparent solution. Dissolve 1.8mL of Span 80 in 150mL of chlorobenzene and mix it with the above solution, stir it, add it into a fixed bed reactor, and make it polymerize on a 201×7 (717) macroporous strongly basic anion exchange resin at 25°C After 4.2 hours of reaction, the temperature was raised to 70° C. in a water bath for 2 hours. The product was eluted with absolute ethanol to obtain the polysucrose product with a yield of 92.8%.

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PUM

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Abstract

The invention discloses a ficoll synthesis process method which comprises the following steps: (1) filling alkalic anion exchange resin into a fixed bed reactor; (2) adding a mixture prepared by sucrose, a cross-linking agent, distilled water, an oil phase and a dispersant into the fixed bed reactor, so that the mixture can conduct polyreaction on the alkalic anion exchange resin; (3) reacting for 4 to 5 hours at 22 to 28 DEG C, increasing the temperature to be 50 to 95 DEG C, and reacting for 2 to 5 hours under water bath again; (4) repeatedly washing by absolute ethyl alcohol and adsorbing a reaction product on the alkalic anion exchange resin, and eluting to obtain ficoll. The synthesis process has the characteristics of simple and convenient preparation process, mild reaction condition, less side reaction, repeated use of a catalyst, no problem of separation from the product, continuous production, cleanness, environmental protection and the like, and moreover, ficoll with good water-solubility and high reaction activity can be obtained. Therefore, the synthesis process has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of compound preparation, in particular to a synthesis process method of a water-soluble polymer. Background technique [0002] Polysucrose is a derivative produced by the polymerization of sucrose monomers. It contains a large number of hydroxyl groups and has high purity. The long-chain polysucrose molecule has good degradability and biocompatibility. The use of sucrose as raw material for deep processing to further produce new products to improve the sugar industry has been widely recognized internationally. A new discipline "sucrose chemical engineering" has also been established internationally. Now countries are developing sucrose-based products, among which the United States and Japan have a relatively high level of development. They have developed, produced and sold many products, such as Splenda, sucrose polyester (registered name Olean in the United States) and Polysucrose 400. (Ficoll400), etc.,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 曹慧赟金琼邱新荣
Owner ADANA FOOD TECH LIUZHOU
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