Preparation method for biomass anti-lyolysis desiccant

A desiccant and biomass technology, which is applied in the field of preparation of biomass anti-liquid hydrolysis desiccant, can solve the problems of reverse adsorption of moisture, affecting the use time of products, liquid hydrolysis phenomenon, etc., to achieve high regeneration, improve liquid hydrolysis problems, Good hygroscopic effect

Inactive Publication Date: 2016-03-02
丁玉琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is that the current common silica gel desiccant and calcium chloride desiccant will have moisture reverse adsorption phenomenon, which will affect the service life of the product, a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] Weigh 500g of corn residue left over from the starch factory, soak it in absolute ethanol at room temperature for 24 hours, transfer it into a Buchner funnel, wash with deionized water and filter 3 times until the filtrate is clear and transparent, and place the filter residue in a vacuum dryer to dry. Standby; put the above-mentioned dried filter residue into a 2L beaker, add 1000mL of hydrochloric acid solution with a concentration of 3mol / L, place it on a magnetic stirrer, stir at 300r / min for 10min, then move it into a water bath and heat up to 40℃, After hydrolyzing for 1 hour, filter with suction and dry; take 200g of hydrolyzed corn dregs and pour into a three-necked flask, add 50g of monochloroacetic acid and 30g of sodium hydroxide, mix well, and continue to pour 500mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature of 60°C for 1 hour to obtain a corn scum hull derivative product; soak the derivativ...

Example Embodiment

[0019] Example 2

[0020] Weigh 550g of corn residue hulls left over from the starch factory, soak in absolute ethanol at room temperature for 30 hours, transfer it to a Buchner funnel, wash with deionized water and filter 4 times until the filtrate is clear and transparent, and place the filter residue in a vacuum dryer to dry. Standby; put the above-mentioned dried filter residue into a 2L beaker, add 1100mL of hydrochloric acid solution with a concentration of 3mol / L, place it on a magnetic stirrer, stir at 350r / min for 15min, then move it into a water bath and heat to 45℃, After hydrolyzing for 1 hour, filter with suction and dry; take 250g of hydrolyzed corn dregs and pour into a three-necked flask, add 80g of monochloroacetic acid and 35g of sodium hydroxide, mix well, and continue to pour 550mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature at 65°C for 1 hour to obtain a corn scum hull derivative product; soak the derivative ...

Example Embodiment

[0022] Example 3

[0023] Weigh 600g of corn residue hulls left over from the starch factory, soak in absolute ethanol at room temperature for 36 hours, transfer it to a Buchner funnel, wash with deionized water and filter 5 times until the filtrate is clear and transparent, and place the filter residue in a vacuum dryer to dry. Standby; Put the above-mentioned dried filter residue into a 2L beaker, add 1200mL of 3mol / L hydrochloric acid solution, place it on a magnetic stirrer, stir at 400r / min for 20min, then move it into a water bath and heat to 50℃, After 2 hours of hydrolysis, filter with suction and dry; take 300g of the hydrolyzed corn husks and pour into a three-necked flask, add 100g of monochloroacetic acid and 40g of sodium hydroxide, mix well and continue to pour 600mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature of 70°C for 2 hours to obtain a corn scum hull derivative product; soak the derivative product obtained abo...

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PUM

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Abstract

The present invention relates to a preparation method for a biomass anti-lyolysis desiccant, and belongs to the field of desiccant preparation. The method comprises the steps of taking corn husk residues as a raw material; obtaining a crude desiccant product through a series of modification; and preparing the crude desiccant product with polyacrylamide into the biomass anti-lyolysis desiccant through an aqueous solution polymerization method. The polyacrylamide contains a strongly hydrophilic amide group in a macromolecular chain, and is a three-dimensional network structure, so that a large amount of moisture can be absorbed and locked. Thus, the polyacrylamide can be compounded with the biomass desiccant for absorbing the moisture absorbed by the biomass desiccant, thereby effectively preventing lyolysis of the biomass desiccant and enabling the moisture absorption ratio of the compound desiccant to be significantly increased. The desiccant disclosed by the present invention not only keeps the characteristics of low price, high reproducibility and good moisture absorption property of a corn husk residue desiccant, but also effectively alleviates the lyolysis problem common to the desiccant.

Description

technical field [0001] The invention relates to a preparation method of a biomass anti-hydrolysis desiccant, which belongs to the field of dryer preparation. Background technique [0002] Use the desiccant to absorb the moisture in the bagged items, keep the items relatively dry for a long time, regulate the moisture conditions of microbial survival, chemical reactions, photolysis reactions and enzymatic reactions, so as to achieve moisture-proof, mildew-proof, insect-proof and rust-proof , anti-oxidation to prolong the shelf life of the product. [0003] The desiccants used in the past, such as silica gel desiccant, calcium chloride desiccant, etc., are mostly in the form of physical water absorption. When the moisture content in the article and the air is lower than the moisture content in the desiccant, the reverse adsorption phenomenon of moisture will occur, and the article will absorb the desiccant Medium moisture makes the product unable to be stored for a long time....

Claims

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Application Information

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IPC IPC(8): B01D53/28
Inventor 丁玉琴林大伟
Owner 丁玉琴
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