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Method for recycling lignin and cellulose in tobacco waste

A technology of tobacco waste and lignin, which is applied in fiber raw material processing, textile and papermaking, etc., can solve the problems of low comprehensive utilization efficiency, low market competitiveness, backward process conditions, etc., and is suitable for large-scale production and production. Low cost, good cellulose sensory effect

Active Publication Date: 2012-10-17
CHONGQING HENGYUAN JINTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for better control over how harmful chemicals enter our body during smoking cigarettes by continuously removing these substances from cigarette smoke without leaving behind any other residue that could affect its health or make it difficult to use again later on. By doing this, we aimed towards create an improved way to produce more effective drugs while reducing environmental impact.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the use of toxic materials from tobaccos (to reduce environmental concerns) while reducing their costly manufacturing process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 100g of tobacco waste powder of 20 meshes, dry and remove impurities, add room temperature water equivalent to 10 times the volume of tobacco waste, adjust the pH value to 11, and filter under microwave power of 200W for 20 minutes. The mass fraction of the filtrate is 10 % sulfuric acid is used as a solvent for distillation and extraction, and the distillation temperature is 100° C. to obtain the product nicotine sulfate, which is then extracted with n-hexane to obtain 3.2 g of natural nicotine; centrifuged for 10 min) to obtain 8.6 g of hemicellulose A; the centrifuged suspension was precipitated with ethanol with a volume fraction of 95%, and centrifuged (centrifuged for 10 min at 2000 r / min) to obtain 4.2 g of hemicellulose B.

[0024] Extract the lignin from the filter residue after filtering the pretreatment material obtained in step A, specifically: adjust the pH value of the filter residue to 4.0 with 0.3mol / l HCL, heat it to 75°C for 1 hour, cool, filter, a...

Embodiment 2

[0027] Take 100g tobacco waste powder of 20 meshes, dry and remove impurities, add room temperature water equivalent to 10 times the volume of tobacco waste, adjust the pH value to 11, and filter under microwave power 400W, after microwave for 30min, the mass fraction of filtrate is 10 % sulfuric acid is used as a solvent for distillation and extraction, and the distillation temperature is 100° C. to obtain the product nicotine sulfate, which is then extracted with n-hexane to obtain 3.6 g of natural nicotine; centrifuged for 10 min) to obtain 8.8 g of hemicellulose A; the centrifuged suspension was precipitated with 95% ethanol and centrifuged at 2000 r / min for 10 min to obtain 4.7 g of hemicellulose B.

[0028] Extract the lignin from the filter residue after filtering the pretreatment material obtained in step A, specifically: adjust the pH value of the filter residue to 5.0 with 0.3mol / l HCL, heat to 75°C for 1 hour, cool and filter, and the filtered filter residue contains...

Embodiment 3

[0031] Take 100g of tobacco waste powder of 20 meshes, dry and remove impurities, add room temperature water equivalent to 10 times the volume of tobacco waste, adjust the pH value to 11, and filter it after 30 minutes of action, and use sulfuric acid with a mass fraction of 10% as a solvent for the filtrate. Distillation and extraction, the distillation temperature is 100°C, to obtain the product nicotine sulfate, and then extract with n-hexane to obtain 1.6g of natural nicotine; the remaining filtrate is adjusted to a pH value of 3.0 with HCL, centrifuged (1500r / min for 10min), 4.8 g of hemicellulose A was obtained; the centrifuged suspension was precipitated with 95% ethanol and centrifuged at 2000 r / min for 10 min), and 1.5 g of hemicellulose B was obtained.

[0032] Extract the lignin from the filter residue after filtering the pretreatment material obtained in step A, specifically: adjust the pH value of the filter residue to 4.0 with 0.3mol / l HCL, heat to 75°C for 1 hour...

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Abstract

The invention relates a chemical extraction method of agricultural waste, particularly a method for recycling lignin and cellulose in tobacco waste, comprising the following steps: crushing the tobacco waste, adding 10-30 times volume of water, regulating the pH value to 11-13, processing for no less than 1 min under microwave at 100 W to obtain a pretreatment material; filtering the pretreatment material, regulating the pH value of the filter residues to 4.0-5.0, reacting for no less than 40 min, and using an ionic liquid of 1-butyl-3-methyl imidazolium chloride to fully dissolve, carrying out solid-liquid separation to obtain the solid and liquid, wherein the solid is lignin, and the liquid contains cellulose. The method provides a continuous extraction process of nicotine, hemicellulose and cellulose. After nicotine products are obtained with high yield, the residues are used for extracting hemicellulose and cellulose, wherein cellulose has good sensory property and can be used as a high end material. The whole method is green, and the production cost is low.

Description

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Claims

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Application Information

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Owner CHONGQING HENGYUAN JINTONG TECH
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