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Waste tobacco leaf recycling method

A technology for waste tobacco leaves and waste residues, applied in chemical instruments and methods, separation/purification of carboxylic acid esters, preparation of organic compounds, etc., can solve the problems of lack of large-scale comprehensive production technology of waste tobacco leaves, low extraction rate, and backward technology , to achieve the effects of good equipment adaptability, high product yield, and no discharge of toxic and harmful substances

Inactive Publication Date: 2019-01-04
云南中海路德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology mostly uses water and ethanol solution extraction, which is relatively backward, with single equipment, low extraction rate, and lack of large-scale comprehensive production technology of waste tobacco leaves

Method used

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  • Waste tobacco leaf recycling method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A method for recycling waste tobacco leaves, comprising the steps of:

[0028] (1) Extraction: Put the waste tobacco leaves in the extraction tank, add 90% industrial ethanol, heat to 70°C for 30 minutes, collect the extract, and pump it into the concentration tank; add 90% industrial ethanol to the remaining waste residue, repeat the above Step: Concentrate the obtained extract and recover ethanol, the vacuum negative pressure of the concentration tank is 1.0Mpa, the temperature is 60°C, and the concentration is concentrated to a density of 1.0g / cm 3 g / cm 3 , to obtain concentrated primary cream;

[0029] (2) preparation of solanesol:

[0030] A. Pump the concentrated primary paste into the reaction kettle, add 20% sulfuric acid aqueous solution to adjust the pH to 3, according to the mass ratio of the concentrated solution and petroleum ether is 1:1, add petroleum ether of equal quality and stir for 15 minutes to extract, and let it stand for 10 minutes. Pump the e...

Embodiment 2

[0049] A method for recycling waste tobacco leaves, comprising the steps of:

[0050] (1) Extraction: Put the waste tobacco leaves in the extraction tank, add 90% industrial ethanol, heat to 70°C for 40 minutes, collect the extract, and pump it into the concentration tank; add 90% industrial ethanol to the remaining waste residue, repeat the above Step: Repeat the above steps, concentrate the obtained extract and recover ethanol, the vacuum negative pressure of the concentration tank is 1.0Mpa, the temperature is 60°C, and the concentration is concentrated to a density of 1.2g / cm 3 , to obtain concentrated primary cream;

[0051] (2) preparation of solanesol:

[0052] A. Pump the concentrated initial paste into the reaction kettle, add 30% sulfuric acid aqueous solution to adjust the pH to 2, add petroleum ether of equal mass and stir for 20 minutes to extract, let stand for 10 minutes, and pump the extract into the concentration tank;

[0053] B. Concentrate the extract and...

Embodiment 3

[0070] A method for recycling waste tobacco leaves, comprising the steps of:

[0071] (1) Extraction: Put the waste tobacco leaves in the extraction tank, add 90% industrial ethanol, heat to 70°C for 60 minutes, collect the extract, and pump it into the concentration tank; add 90% industrial ethanol to the remaining waste residue, repeat the above Step: Repeat the above steps, concentrate the obtained extract and recover ethanol, the vacuum negative pressure of the concentration tank is 1.0Mpa, the temperature is 60°C, and the concentration is concentrated to a density of 1.2g / cm 3 , to obtain concentrated primary cream;

[0072] (2) preparation of solanesol:

[0073] A. Pump the concentrated primary paste into the reaction kettle, add 40% sulfuric acid aqueous solution to adjust the pH to 1, according to the mass ratio of the concentrated solution and petroleum ether is 1:1, add petroleum ether of equal quality and stir for 30 minutes to extract, and let it stand for 10 minu...

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Abstract

The invention discloses a waste tobacco leaf recycling method. The waste tobacco leaf recycling method comprises the following steps: (1) subjecting waste tobacco leaves to hot refluxing and extracting to obtain a concentrated primary paste; (2) extracting a concentrated solution to obtain extract liquor I and raffinate I; carrying out concentration and distillation, saponification, chromatographyand cooling crystallization on the extract liquor I to obtain solanesol; (3) collecting a sample effluent during chromatography of the solanesol, and concentrating, extracting and distilling the sample effluent to obtain neophytadiene; (4) extracting, concentrating and distilling the raffinate I to obtain a chlorogenic acid extract and raffinate II; and carrying out chromatography on the chlorogenic acid extract to obtain chlorogenic acid; (5) extracting, concentrating and distilling, and reversely extracting the raffinate II to obtain a nicotine competitive product; and (6) adding microorganisms in waste residues obtained in step (1) and fermenting to obtain an organic fertilizer. The nicotine, the chlorogenic acid, the solanesol, the neophytadiene and the bacterium fertilizer are simultaneously extracted and separated from the waste tobacco leaves, in a large-scale production process route, effective ingredients in the waste tobacco leaves are comprehensively utilized, the types ofproducts are abundant, and the economic value is high.

Description

technical field [0001] The invention relates to the technical field of tobacco product processing, in particular to a method for recycling waste tobacco leaves. Background technique [0002] my country is the country with the largest tobacco production and consumption in the world, accounting for more than one-third of the global total. It has become a conclusion that smoking is harmful to health. With the rise of the world tobacco control movement, the use of tobacco in cigarettes will also be greatly weakened. However, as a highly productive natural plant resource, tobacco's potential health benefits are also very broad. In addition to protein and sugar, tobacco also contains important medicinal components such as solanesol and nicotine, and its development and utilization have broad prospects. [0003] Solanesol is a medicinal active ingredient with high added value. It has pharmacological effects such as antibacterial, anti-inflammatory and hemostatic. It is also a nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C7/00C07C7/10C07C7/12C07C7/148C07C67/48C07C67/54C07C67/56C07C33/02C07C69/732C07D401/04
CPCC07C7/005C07C7/10C07C7/12C07C7/148C07C67/48C07C67/54C07C67/56C07D401/04C07C33/02C07C69/732
Inventor 陈伟
Owner 云南中海路德科技有限公司
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