Method for producing high-quality calcium alginate

A calcium alginate and production method technology, applied in the field of marine chemical product processing, can solve problems such as increasing the tendency of weld thermal cracks, limiting the application of calcium alginate, and deteriorating arc stability, achieving easy crushing, low loss, Effect of Product Yield Improvement

Active Publication Date: 2013-10-02
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

"Application of alginate in the manufacture of welding electrodes" published by Gan Chunji pointed out that when the chlorine content in alginate exceeds 0.2%, the stability of the arc deteriorates sharply and the number of arc interruptions increases significantly
However, if the phosphorus content in alginate is too high, it will cause cracks in the welding rod, which will affect the weldin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] (1) Pre-processing

[0024] Soaking and washing: soak the light-dried macroalgae in water, cut them into strips of about 10 cm, and wash them with 30 times of water in countercurrent for several times until they are washed;

[0025] Digestion: Put the washed brown algae strips into a digestion tank with a stirrer, add 0.5% soda ash equivalent to 20 times the weight of the dry brown algae, and keep it at a constant temperature of 50°C for 1.5 hours, then mechanically break the brown algae into sticky pieces. thick mud;

[0026] Dilution: After digestion, a viscous mud is obtained, which is diluted with water equivalent to 100 times the weight of the dry brown algae raw material to form a glue;

[0027] Foaming and floating: the diluted glue solution is emulsified and floated by mechanical aeration, and floated for 2 hours to obtain a clear glue solution;

[0028] Filtration: the floating clear glue is filtered through a 150-mesh screen first, and th...

Example Embodiment

[0039] Example 2

[0040] (1) Pre-processing

[0041] Soaking and washing: soak the light-dried kelp in water, cut it into strips of about 10 cm, and wash it with 30 times of water in countercurrent for several times until it is washed;

[0042] Digestion: Put the washed brown algae strips into a digestion tank with a stirrer, add 1% soda ash equivalent to 30 times the weight of the dry brown algae, and keep it at a constant temperature of 60°C for 2 hours, then mechanically break the brown algae into a thick consistency of mud;

[0043] Dilution: After digestion, a viscous mud is obtained, which is diluted with water equivalent to 120 times the weight of the dry brown algae raw material to form a glue;

[0044] Foaming and floating: the diluted glue solution is emulsified and floated by mechanical aeration, and floated for 2 hours to obtain a clear glue solution;

[0045] Filtration: the floating clear glue is filtered through a 150-mesh screen first, and then filtered throu...

Example Embodiment

[0055] Example 3

[0056] (1) Pre-processing

[0057] Soaked and washed: fresh kelp is soaked in water, cut into strips of about 10 cm, and washed with 30 times of water in countercurrent for several times until washed;

[0058] Digestion: Put the washed brown algae strips into a digestion tank with a stirrer, add 2% soda ash equivalent to 40 times the weight of the dry brown algae, and keep it at a constant temperature of 70 °C for 3 hours, then mechanically break the brown algae into a viscous consistency of mud;

[0059] Dilution: After digestion, a viscous mud is obtained, which is diluted with water equivalent to 100 times the weight of the dry brown algae raw material to form a glue;

[0060] Foaming and floating: the diluted glue solution is emulsified and floated by mechanical aeration, and floated for 2 hours to obtain a clear glue solution;

[0061] Filtration: the floating clear glue is filtered through a 150-mesh screen first, and then filtered through a 300-mes...

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PUM

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Abstract

The invention provides a method for producing high-quality calcium alginate in order to solve the problems of the current method for producing the calcium alginate. The method provided by the invention is simple, easy to operate and suitable for industrial production. A calcium alginate product produced by the method has white color, the content can be up to 100 to 104 percent (in dry basis), the content of lead is less than 4mg/kg, the content of arsenic is less than 2mg/kg, the total amount of infectious microbe is less than or equal to 1,000cfu/g, the total amount of mould and saccharomycetes is less than or equal to 1,00cfu/g, coliform is not detected, the content of phosphonium ion is less than or equal to 0.05 percent, the content of sulfion is less than or equal to 0.25 percent and the content of chloridion is less than or equal to 0.2 percent. The product is easy to crush and low in loss, and the yield of the product is increased, so that the defect of the prior art is effectively overcome.

Description

technical field [0001] The invention belongs to the technical field of marine chemical product processing, and in particular relates to a production method of high-quality calcium alginate. Background technique [0002] Calcium alginate is a white to pale yellow fibrous powder or coarse granular powder obtained by reacting alginic acid extracted from brown algae with sodium hydroxide or sodium carbonate. Alginic acid is insoluble in cold water and organic solvents, but easily soluble in alkaline solutions, and can form a suspension with water in a ratio of 3:100. Calcium alginate made from alginic acid is insoluble in water and organic solvents, and can be slowly dissolved in sodium carbonate, sodium polyphosphate solution and calcium compound solution. Calcium alginate has the functions of suspending, emulsifying, thickening, and film-forming, and can be widely used in pharmaceutical, food, daily chemical and other industries. [0003] At present, domestic enterprises mos...

Claims

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Application Information

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IPC IPC(8): C08B37/04
Inventor 陈宏李梅刘晶营于春燕崔淑红
Owner 青岛海之林生物科技开发有限公司
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