Method for separating holocellulose in wood fibers by using choline deep-eutectic solvent
A technology of deep eutectic solvent and synthetic cellulose, which is applied in the field of biomass refining, can solve problems such as instrument corrosion, accelerated equipment aging, unfavorable interaction between deep eutectic solvent and fiber, etc., to achieve less environmental pollution and reduce equipment loss , Improve the effect of using value
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0089] Example 1:
[0090] The raw material of poplar wood is treated with choline lactate-lactic acid eutectic solvent to extract holocellulose.
[0091] (1) Raw material pretreatment: take relatively uniform wood chips, air-dry, crush, and sieving to obtain wood flour of 40-60 mesh.
[0092] (2) Phenyl alcohol extraction: The wood flour is extracted with a benzene-ethanol mixed solution with a volume ratio of 2:1 for 6 hours, dried and constant weight.
[0093] (3) Preparation of eutectic solvent: Mix choline chloride and potassium hydroxide according to the amount of the substance 1:1, in the ethanol solvent, heat and stir at the reaction temperature of 60 ℃ for 4 hours, filter, retain the supernatant, and follow the substance Add lactic acid in the amount of 1:1, after rotary evaporation and drying, mix with lactic acid in the amount of 1:10, heat at 60°C for 5h, and cool to room temperature to obtain choline lactate-lactic acid eutectic solvent.
[0094] (4) Eutectic solvent treat...
Example Embodiment
[0098] Example 2:
[0099] The raw materials of poplar wood are treated with choline formate-formic acid eutectic solvent to extract lignin.
[0100] (1) Raw material pretreatment: take relatively uniform wood chips, air-dry, crush, and then sieving to obtain wood flour of 40-60 mesh.
[0101] (2) Phenyl alcohol extraction: The wood flour is extracted with a benzene-ethanol mixed solution with a volume ratio of 2:1 for 6 hours, dried and constant weight.
[0102] (3) Preparation of eutectic solvent: Mix choline chloride and potassium hydroxide according to the amount of the substance 1:1, in the ethanol solvent, heat and stir at the reaction temperature of 60 ℃ for 4 hours, filter, retain the supernatant, and follow the substance Add formic acid in the amount of 1:1, after rotary evaporation and drying, mix with formic acid in the amount of 1:10, heat at 60°C for 5h, and cool to room temperature to obtain choline formate-formic acid eutectic solvent.
[0103] (4) Eutectic solvent treat...
Example Embodiment
[0107] Example 3:
[0108] The raw material of poplar wood is treated with choline propionate-propionic acid eutectic solvent to extract lignin.
[0109] (1) Raw material pretreatment: take relatively uniform wood chips, air-dry, crush, and then sieving to obtain wood flour of 40-60 mesh.
[0110] (2) Phenyl alcohol extraction: The wood flour is extracted with a benzene-ethanol mixed solution with a volume ratio of 2:1 for 6 hours, dried and constant weight.
[0111] (3) Preparation of eutectic solvent: Mix choline chloride and potassium hydroxide according to the amount of the substance 1:1, in the ethanol solvent, heat and stir at the reaction temperature of 60 ℃ for 4 hours, filter, retain the supernatant, and follow the substance Add propionic acid in the amount of 1:1, after rotary evaporation and drying, mix with propionic acid in the amount of 1:10, heat at 60°C for 5h, and cool to room temperature to obtain choline propionate-propionic acid eutectic solvent.
[0112] (4) Eutect...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap