Preparation method of Canada-goldenrod-based sand stabilization material

A yellow flower base and yellow flower technology, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve the problems of high labor intensity, slow construction progress, high cost, etc., and achieve ecological environment problems and high utilization of resources , the effect of reducing carbon emissions

Inactive Publication Date: 2014-07-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the existing mature sand fixation methods (engineering sand fixation and biological sand fixation) and technologies have problems such as high cost, low yield, high labor intensity, and slow construction progress, they have not been widely promoted and effectively implemented.

Method used

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  • Preparation method of Canada-goldenrod-based sand stabilization material
  • Preparation method of Canada-goldenrod-based sand stabilization material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Weigh 5g of Solidago canadensis stalks into a 250ml Erlenmeyer flask, add 60mL of 88% formic acid and 1.5mL of 37% hydrochloric acid, place in a magnetic stirring heater, and continuously stir through a magnetic rotor at a speed of 400r / min, react at 85°C for 15min, 30min, 1.5h, 2h, 2.5h, 3h, 4h, 6h;

[0030] (2) Take out the reaction slurry for suction filtration, wash the obtained solid with about 40mL of 88% formic acid and then suction filter, and carry out vacuum distillation on the collected filtrate to recover the mixed solution of formic acid and hydrochloric acid (reusable);

[0031] (3) The solution after vacuum distillation is added with water to dissolve the hydrolyzed sugar of hemicellulose, the water-insoluble lignin is recovered by a centrifuge, dried and quantified, and the remaining solid obtained by suction filtration is washed with distilled water until neutral, dried and quantified;

[0032] (4) Add an appropriate amount of 17.5% sodium hydroxid...

Embodiment 2

[0037] (1) Weigh 5g of Solidago canadensis stalks into a 250ml Erlenmeyer flask, add 60mL of 88% formic acid and 1.5mL of 37% hydrochloric acid, place in a magnetic stirring heater, and continuously stir through a magnetic rotor at a speed of 400r / min, react at 75, 80, 85, 90, 95°C for 2.5h;

[0038] (2) Take out the reaction slurry for suction filtration, wash the obtained solid with about 40mL of 88% formic acid and then suction filter, and carry out vacuum distillation on the collected filtrate to recover the mixed solution of formic acid and hydrochloric acid (reusable);

[0039] (3) The solution after vacuum distillation is added with water to dissolve the hydrolyzed sugar of hemicellulose, the water-insoluble lignin is recovered by a centrifuge, dried and quantified, and the remaining solid obtained by suction filtration is washed with distilled water until neutral, dried and quantified;

[0040] (4) Add an appropriate amount of 17.5% sodium hydroxide solution to adjust...

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Abstract

The invention relates to a preparation method of a Canada-goldenrod-based sand stabilization material. The preparation method includes reacting stalks of Canada goldenrod with formic acid and hydrochloric acid; preparing to obtain lignin, alpha-cellulose and hemicellulose; mixing the alpha-cellulose with dilute sulphuric acid to obtain levulinic acid and reaction by-products; mixing the cellulose, acrylamide, the reaction by-products with water, adding N,N'-dimethylacrylamide and potassium persulfate to obtain the sand stabilization material. According to the method, the method is simple, the resource recycling utilization rate is high, pollution is small, and the method is environment-friendly; and the wood fiber component alpha-cellulose, the lignin and the hemicellulose in the Canada goldenrod are effectively extracted.

Description

technical field [0001] The invention belongs to the field of preparation of sand-fixing materials, in particular to a preparation method of solidago canadensis-based sand-fixing materials. Background technique [0002] Desertification has caused a series of serious ecological and social problems, posing a threat to human existence. my country is one of the countries where desertification is very serious. Desertification has had a very serious impact on my country's economic development and social progress. The key to desertification control is sand prevention and sand fixation. Because the existing mature sand fixation methods (engineering sand fixation and biological sand fixation) and technologies have problems such as high cost, low yield, high labor intensity, and slow construction progress, they have not been widely promoted and effectively implemented. In recent years, chemical sand-fixation technology and new chemical sand-fixation materials have attracted increasing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F289/00C08F220/56C08F222/38C08H7/00C08B37/14C09K17/32C09K105/00
Inventor 杨再福薛金莲
Owner DONGHUA UNIV
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