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Preparation method of super absorbent resin containing humic acid

A technology of superabsorbent resin and humic acid, which is applied in fermentation and other directions, can solve problems such as waste and lignin destruction, and achieve the effects of fast water absorption rate, good mechanical strength and high economic benefits

Active Publication Date: 2015-03-25
ADANA FOOD TECH LIUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, bagasse also contains lignin, and after lignin is decomposed, it will generate humic acid, which can be used as a green organic fertilizer, but the general treatment method of bagasse will destroy the lignin contained in it, resulting big waste

Method used

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  • Preparation method of super absorbent resin containing humic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of preparation method of superabsorbent resin containing humic acid, it comprises the following steps:

[0019] A. soak 100Kg bagasse with deionized water to remove residual sugar, then dry at 60°C, and pulverize the bagasse with a pulverizer, and pass through a 20-mesh sieve to obtain bagasse powder;

[0020] B. Put 5×10 7 U lignin peroxidase and 1L hydrogen peroxide were added to the bagasse powder, then the pH value was adjusted to 3.0, and the enzymolysis was carried out at a temperature of 30°C for 48h;

[0021] C. After the enzymolysis described in step B is completed, filter the lignin hydrolyzate and set it aside; at the same time, mix the remaining residue with 15 times the amount of water, and gelatinize at 30°C for 55 minutes;

[0022] D. After the gelatinization in step C is completed, add the lignin hydrolyzate obtained in step C, mix well, and then add 3Kg potassium persulfate, 3Kg sodium thiosulfate, 0.8Kg N, N'-methylenebisacrylamide and 250L ...

Embodiment 2

[0025] A kind of preparation method of superabsorbent resin containing humic acid, it comprises the following steps:

[0026] A. Soak 100Kg bagasse with clear water to remove residual sugar, then dry at 80°C, and pulverize the bagasse with a pulverizer, and pass through a 40-mesh sieve to obtain bagasse powder;

[0027] B. Divide 2×10 8 U manganese peroxidase and 5L hydrogen peroxide were added to the bagasse powder, then the pH value was adjusted to 5.0, and the enzymolysis was carried out at a temperature of 45°C for 36 hours;

[0028] C. After the enzymolysis described in step B is completed, filter the lignin hydrolyzate and set it aside; at the same time, mix the remaining residue with 20 times the amount of water, and gelatinize at 60°C for 30 minutes;

[0029] D. Add the lignin hydrolyzate obtained in step C after the gelatinization in step C is completed, mix well, and then add 3.5Kg potassium persulfate, 3.5Kg sodium thiosulfate, 1KgN,N'-methylenebispropylene Mix am...

Embodiment 3

[0032] A kind of preparation method of superabsorbent resin containing humic acid, it comprises the following steps:

[0033] A. soak 100Kg bagasse with deionized water to remove residual sugar, then dry at 100°C, and pulverize the bagasse with a pulverizer, and pass through a 60-mesh sieve to obtain bagasse powder;

[0034] B. Divide 3×10 8 Laccase and 10L hydrogen peroxide were added to the bagasse powder, then the pH value was adjusted to 7.0, and the enzymolysis was carried out at a temperature of 60°C for 10 hours;

[0035] C. After the enzymolysis described in step B is completed, filter the lignin hydrolyzate and set aside; at the same time, mix the remaining residue with 25 times the amount of water, and gelatinize at 80°C for 15 minutes;

[0036] D. Add the lignin hydrolyzate obtained in step C after the gelatinization in step C is completed, mix well, and then add 4Kg potassium persulfate, 3.5Kg sodium thiosulfate, 1.5Kg N,N'-methylenebispropylene Mix amide and 800...

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Abstract

The invention discloses a preparation method of super absorbent resin containing humic acid. The preparation method comprises the steps of performing enzymolysis on lignin in bagasse to obtain hydrolysate containing humic acid, adding the obtained hydrolysate into gelatinized bagasse powder, performing modified grafting on the mixture by using cellulose as a framework material to prepare super absorbent resin, and finally obtaining the super absorbent resin containing humic acid. The super absorbent resin containing humic acid can achieve the effects of holding water and holding fertilizers; various components of the bagasse are sufficiently utilized, so the method is environment-friendly and high in economic benefit; the raw materials are wide, the operation is simple and feasible, and the prepared absorbent resin has the characteristics of biodegradability and high water absorption rate; meanwhile, the natural cellulose is used as the framework material, the gel form of the cellulose has good mechanical strength after absorbing water, and the appearance shape of the cellulose can be well kept, so the cellulose can be reused and the method meets the requirements of China for low-carbon economy and scientific development.

Description

technical field [0001] The invention relates to a preparation method of a superabsorbent resin, in particular to a preparation method of a superabsorbent resin containing humic acid. Background technique [0002] Super Absorbent Polymer (SAP) is a new type of functional polymer material. It has a high water absorption function of absorbing water hundreds to thousands of times heavier than itself, and has excellent water retention performance. It is widely used in personal hygiene products, industrial and agricultural production, civil construction and other fields. In recent years, the average annual growth rate of the world's demand for superabsorbent resins has reached 30% to 40%, and the development prospects are broad. Divided by raw materials, superabsorbent resins include starch (graft, carboxymethylation, etc.), cellulose (carboxymethylation, graft, etc.), synthetic polymer (polyacrylic acid, polyvinyl alcohol, etc.) Department, polyoxyethylene department, etc.) sev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00C08F220/06C08F222/38C12P1/00
Inventor 武雪董彬常志东
Owner ADANA FOOD TECH LIUZHOU
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