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A kind of production technology of self-condensing sodium alginate

A technology of sodium alginate and production process is applied in the field of production process of self-coagulating new type of sodium alginate to achieve the effects of saving dosage, shortening production cycle and saving energy

Active Publication Date: 2016-01-20
青岛海之林生物科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the existing sodium alginate production process, and provides a production process of self-curing sodium alginate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Soak the kelp in water, wash, digest, dilute, foam, float, filter, and calcify to make a calcified glue. The specific method is as follows: Soak the dried kelp in 15 times the volume of water at room temperature for 2.5 hours. After washing, add the dried kelp Soda ash with a weight of 15% is digested at 60°C for 3 hours, then diluted with 120 times of water and filtered, and 0.5 times of calcium chloride solution with a concentration of 10% is added for calcification, and the pH value of the calcification is 7.2;

[0020] (2) Three-stage decalcification: adopt the continuous decalcification method, first put the calcification glue into the calcification tank to drain, then add unused acid (such as hydrochloric acid) or the waste acid and glue used in the previous two-stage decalcification The volume ratio with hydrochloric acid is about 1:0.3, stir for 40 minutes, and discharge the waste acid; then add 0.3 times HCl with a concentration of 3% for secondary decalcific...

Embodiment 2

[0027] 1) Soak the dried kelp with 15 times the volume of water at room temperature for 2.5 hours. After washing, add soda ash with 15% of the weight of the dried kelp. After digesting at 60°C for 3 hours, dilute and filter with 120 times of water, and add 0.5 times the concentration Carry out calcification for 10% calcium chloride solution, and the pH value of calcification is 7.2;

[0028] (2) Three-stage decalcification: adopt the continuous decalcification method, first put the calcification glue into the calcification tank to drain, and then put all the waste acid for the second-stage decalcification (the volume ratio of glue and hydrochloric acid is about 1:0.3) , stirred for 40 minutes, and discharged the waste acid; then added 0.3 times the concentration of 3% HCl as a secondary decalcification, stirred for 20 minutes, recovered the waste acid, and left it for the primary decalcification; then washed with 0.3% hydrochloric acid for 10 minutes, and took a floc sample Wa...

Embodiment 3

[0035] 1) Soak the dried kelp with 15 times the volume of water at room temperature for 2.5 hours. After washing, add soda ash with 15% of the weight of the dried kelp. After digesting at 60°C for 3 hours, dilute and filter with 120 times of water, and add 0.5 times the concentration Carry out calcification for 10% calcium chloride solution, and the pH value of calcification is 7.2;

[0036] (2) Three-stage decalcification: adopt the continuous decalcification method, first put the calcification glue into the calcification tank to drain, and then put all the waste acid for the second-stage decalcification (the volume ratio of glue and hydrochloric acid is about 1:0.3) , stirred for 40 minutes, and discharged the waste acid; then added 0.3 times the concentration of 3% HCl as a secondary decalcification, stirred for 20 minutes, recovered the waste acid, and left it for the primary decalcification; then washed with 0.3% hydrochloric acid for 10 minutes, and took a floc sample Wa...

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Abstract

The invention provides a production process for self-solidifying sodium alginate. At present, a process for producing sodium alginate usually comprises the steps of soaking, washing, digesting, diluting, foaming, floating, collating, calcifying, decalcifying, washing, squeezing, naturalizing, centrifuging, granulating, drying, smashing, mixing, packaging, etc. The production process for self-solidifying novel sodium alginate is provided by improving a conventional process from the decalcifying step. Water-soluble sodium alginate monomers and in insoluble calcium alginate monomers are staggered arranged and block copolymerized in the molecular structure of an obtained product obtained by the process, so that the product has water absorption of the water-soluble sodium alginate and the indissoluble characteristic of water insoluble alginate; and a novel alginate with self-solidifying effect is formed. The product has the advantages of solubility in cold water, high gel transparency, etc. The product is not melt by heating. The disadvantages of other colloids are made up. An original granulating step is simplified or omitted; and the gel shaping process of sodium alginate is simplified, so that energy is saved.

Description

technical field [0001] The invention belongs to the technical field of preparation of marine chemical products, and in particular relates to a production process of self-condensing novel sodium alginate. Background technique [0002] Sodium alginate is a natural polymer material extracted from seaweed. It has good thickening, emulsifying, stabilizing and gelling effects, and is widely used in medicine, food, industry, daily chemical and other fields. The sodium alginate prepared by the current method is a hydrophilic colloid, which needs to be dissolved in hot water and then cooled to shape. In this way, not only the energy consumption is high in the process of processing, but also the formed gel dissolves after heating to form a gel solution. This is unfavorable to the shaping of the product, and will cause the freezing point and melting point of the product to be low during practical application, and low-temperature freezing is required for preparation and storage, which g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/04
Inventor 陈宏刘兴勇王洪磊李朋崔淑红
Owner 青岛海之林生物科技开发有限公司
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