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Method for extracting cellulose from Livistona chinensis leaves

A technology of cellulose and palmetto leaves, which is applied in the fields of fiber raw material processing, textile and papermaking, and pulping with inorganic alkali, and can solve the problems of unseen palmetto cellulose extraction, etc.

Inactive Publication Date: 2015-11-04
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the palmetto material is a new type of material, the extraction of palmetto cellulose has not been seen at home and abroad.

Method used

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  • Method for extracting cellulose from Livistona chinensis leaves

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] (1) Pretreatment: mechanically pulverize the palm leaves, pass through 40 and 100 mesh sieves, extract the palm leaf materials in a benzene-ethanol mixture, where the volume of benzene and ethanol is 2:1; air-dry the palm leaf materials;

[0028] (2) Acid treatment: mix 10g of palmflower material with 300mL of 0.3mol / L hydrochloric acid solution, and hydrolyze it for 1.5h at 85°C; filter the acid-treated palmflower material through a 500-mesh filter, wash it with distilled water, Until the washing water is neutral, the washed palmetto material is ventilated and dried.

[0029] (3) Alkali treatment: After mixing the acid-treated palmflower material with 200mL sodium hydroxide-hydrogen peroxide solution, react at 90°C for 2 hours, wherein the concentration of sodium hydroxide solution is 4wt%, and the concentration of hydrogen peroxide solution is 0.9wt %; The alkali-treated palmflower material is filtered with a 500-mesh filter, washed with distilled water until the wash...

Embodiment 2

[0033] (1) Pretreatment: mechanically pulverize the palm leaves, pass through 40 and 100 mesh sieves, extract the palm leaf materials in a benzene-ethanol mixture, where the volume of benzene and ethanol is 2:1; air-dry the palm leaf materials;

[0034] (2) Acid treatment: mix 10g of palmflower material with 150mL of 1.5mol / L hydrochloric acid solution, and hydrolyze it for 1.5h at 110°C; filter the acid-treated palmflower material with a 500-mesh filter, wash it with distilled water, Until the washing water is neutral, the washed palmetto material is ventilated and dried.

[0035] (3) Alkali treatment: After mixing the acid-treated palmflower material with 200mL sodium hydroxide-hydrogen peroxide solution, react at 90°C for 2 hours, wherein the concentration of sodium hydroxide solution is 4wt%, and the concentration of hydrogen peroxide solution is 0.9wt %; The alkali-treated palmflower material is filtered with a 500-mesh filter, washed with distilled water until the washin...

Embodiment 3

[0039] (1) Pretreatment: mechanically pulverize the palm leaves, pass through 40 and 100 mesh sieves, extract the palm leaf materials in a benzene-ethanol mixture, where the volume of benzene and ethanol is 2:1; air-dry the palm leaf materials;

[0040] (2) Acid treatment: mix 10g of palmflower material with 300mL of hydrochloric acid solution with a pH of 2, and ultrasonically treat it for 60min at 40°C; filter the acid-treated palmflower material with a 500-mesh filter, wash it with distilled water, until The washing water is neutral, and the washed palmetto material is ventilated and dried.

[0041] (3) Alkali treatment: After mixing the acid-treated palmflower material with 200mL sodium hydroxide-hydrogen peroxide solution, react at 90°C for 2 hours, wherein the concentration of sodium hydroxide solution is 4wt%, and the concentration of hydrogen peroxide solution is 0.9wt %; The alkali-treated palmflower material is filtered with a 500-mesh filter, washed with distilled w...

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Abstract

The invention discloses a method for extracting cellulose from Livistona chinensis leaves. Specifically, the invention relates to a method for obtaining cellulose by removing organic extracts, lignin and hemicelluloses, etc. from Livistona chinensis leaves. According to the method, Livistona chinensis leaves are processed with an organic solvent, an inorganic acid solution, an inorganic alkaline hydrogen peroxide solution, an oxidizing solution and the like to remove hemicellulose and lignin, etc. from the Livistona chinensis leaves so as to obtain cellulose.

Description

technical field [0001] The invention relates to several methods for extracting cellulose from palmetto leaves, and belongs to the technical field of natural polymer cellulose extraction. Background technique [0002] Facing the rapid increase of population, shortage of petroleum resources, and huge increase in demand for textile fibers, how to make full use of renewable, recyclable, degradable and environmentally friendly biological resources will become a top priority in the new era. For this reason, the "Twelfth Five-Year Plan" development plan of my country's textile industry clearly stated that scientific research institutes and universities should be supported to strengthen scientific research on renewable fibers. Renewable resources such as cellulose have attracted more and more attention. [0003] Palmetto, the genus of Palmaceae, has a relatively large planting area in South China, especially Guangzhou Xinhui Palmetto. Both the seeds and roots of palmflower can be ...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21H11/12
CPCD21C3/20D21C3/02D21C3/04D21C5/00D21C9/10D21H11/12
Inventor 贾永堂董凤春于晖孙婷婷曾显华
Owner WUYI UNIV
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