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A method for preparing regenerated cellulose by using Amorpha planted in saline-alkali land

A technology of regenerated cellulose and amorpha, which is applied in the direction of single-component cellulose rayon, fiber chemical characteristics, textiles and papermaking, etc., can solve the problem of low energy utilization rate and achieve the effect of increasing the contact area

Active Publication Date: 2020-07-07
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main chemical components of Amorpha fruticosa are cellulose, hemicellulose, and lignin ash. At present, part of Amorpha fruticosa is used for pulping and papermaking, fiberboard and composite board, and some are used as fuelwood fuel, so the energy utilization rate is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0027] (1) Pretreatment: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0028] (2) Sour cooking treatment: get the amorpha wood powder in step (1), add the mixed solution of organic solvent-organic acid-surfactant (volume concentration is 65% ethanol- Tartaric acid-Tween-60 mixture, and the volume ratio of ethanol, tartaric acid and Tween-60 is 1:1:0.5), stirred, heated to 120°C, cooked for 1h, cooled, filtered, and the collected filter residue was used in organic After repeated washing with solvent, rinse with deionized water;

[0029] (3) Alkali boiling treatment: in step (2) through organic solvent flushing, the filter residue of deionized water flushing, add the mixed solution (0.5mol sodium hydroxide solution / hydroxide Potassium solution-isopropanol mixture, and the volume rat...

example 2

[0034] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0035] (1) Pretreatment: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0036] (2) Sour cooking treatment: get the amorpha wood powder in step (1), add the mixed solution of organic solvent-organic acid-surfactant (volume concentration is 70% ethanol- Tartaric acid-Tween-60 mixture, and the volume ratio of ethanol, tartaric acid and Tween-60 is 2:1:1), stirred, heated to 135°C, cooked for 1.8h, cooled, filtered, and the collected filter residue was used After repeated washing with organic solvents, rinse with deionized water;

[0037] (3) Alkali boiling treatment: in step (2) through the filter residue of organic solvent flushing, deionized water flushing, add the mixed solution (0.6mol sodium hydroxide solution-isopropyl alcohol) of the lye-organic solvent of 8 times the volume of ...

example 3

[0042] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0043] (1) Pretreatment: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0044] (2) Acid boiling treatment: get the amorpha wood powder in the step (1), add the mixed solution (isopropanol-tartaric acid-spit temperature-60 mixed solution, and the volume ratio of ethanol, tartaric acid and Tween-60 is 3.5:2:1), stirring, heating to 155°C, cooking for 2.5h, cooling, filtering, and the collected filter residue is repeatedly washed with an organic solvent After rinsing, rinse with deionized water;

[0045](3) Alkali boiling treatment: in step (2) through organic solvent flushing, the filter residue of deionized water flushing, add the mixed solution (0.8mol sodium hydroxide solution / hydroxide Potassium solution-isopropanol mixture, and the volume ratio of lye to isopropanol is 3:1), hea...

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Abstract

The invention belongs to the technical field of cellulose extraction, and especially relates to a method used for preparing regenerated cellulose from Amorpha fruticosa from saline land. The method comprises steps of pretreatment, acid boiling treatment, alkali boiling treatment, bleaching treatment, spinning solution preparation, and post-treatment. The method is capable of obtaining regeneratedcellulose with relatively excellent performance.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land. Background technique [0002] Amorpha fruticosa is a perennial leguminous deciduous shrub. Because of its fast growth, strong fecundity, wide adaptability, and resistance to saline-alkaline water and humidity, it can improve saline-alkali land in coastal and low-lying saline-alkali areas. , so it is widely used as soil improvement tree species in saline-alkali land. [0003] The main chemical components of Amorpha fruticosa are cellulose, hemicellulose, and lignin ash. At present, part of Amorpha fruticosa is used for pulping and papermaking, fiberboard and composite board, and some are used as fuelwood fuel, so the energy utilization rate is low. In the prior art, regenerated cellulose is mainly prepared from wood pulp, bamboo pulp, and cotton pulp by viscose method or solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/00
CPCD01F2/00
Inventor 王胜
Owner WEIFANG YOURONG IND