Process for extracting wood-vinegar fluid from almond

A process method, the technology of wood vinegar, which is applied in the field of fine chemical industry to achieve the effect of good extraction effect, simple method and fragrant fragrance

Inactive Publication Date: 2007-11-21
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method for extracting wood vineg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Purification: Take 200kg of apricot shells, wash and remove impurities such as sand and gravel;

[0019] 2) Dry distillation: add the purified apricot husks into the dry distillation kettle, and heat and decompose them for 6 hours at a temperature of 450°C in the absence of air;

[0020] 3) Condensation: the gas phase product drawn from the retort is condensed and divided into condensable and non-condensable parts, and the condensable part is crude wood vinegar;

[0021] 4) Stand still: place the crude wood vinegar in a container for 30 days, and separate 3 layers;

[0022] 5) Rectification: Discard the upper and lower impurity parts, and carry out rectification to the remaining middle layer. The rectification conditions are: temperature 90°C, time 6 hours, condensing, and taking the condensable part to obtain the refined wood vinegar product 40kg. The test results are shown in Table 1.

[0023] serial number

[0024] 9

[0025] The water con...

Embodiment 2

[0027] 1) Purification: Take 200kg of apricot shells, wash and remove impurities such as sand and gravel;

[0028] 2) Dry distillation: add the purified apricot shells into the dry distillation kettle, and heat and decompose them for 4 hours at a temperature of 550° C. in the absence of air;

[0029] 3) Condensation: the gas phase product drawn from the retort is condensed and divided into condensable and non-condensable parts, and the condensable part is crude wood vinegar;

[0030] 4) Stand still: place the crude wood vinegar in a container for 40 days, and separate 3 layers;

[0031] 5) Rectification: Discard the upper and lower impurity parts, and carry out rectification on the remaining middle layer. The rectification conditions are: temperature 103°C, time 5 hours, condense, take the condensable part, you can get refined wood vinegar product 40kg. The test results are shown in Table 2

[0032] serial number

[0033] 7

[0034] The water content a...

Embodiment 3

[0036] 1) Purification: Take 200kg of apricot shells, wash and remove impurities such as sand and gravel;

[0037] 2) Dry distillation: add the purified apricot husks into the dry distillation kettle, and heat and decompose them for 5 hours at a temperature of 500°C in the absence of air;

[0038] 3) Condensation: the gas phase product drawn from the retort is condensed and divided into condensable and non-condensable parts, and the condensable part is crude wood vinegar;

[0039] 4) Stand still: place the crude wood vinegar in a container for 35 days, and separate 3 layers;

[0040] 5) Rectification: Discard the upper and lower impurity parts, and carry out rectification on the remaining middle layer: the rectification conditions are: temperature 120°C, time 6 hours, condense, take the condensable part, you can get refined wood vinegar product 40kg.

[0041] 40 kg of the refined wood vinegar product was extracted 6 times with anhydrous ether, the ether solution was combined...

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Abstract

Process for extracting wood vinegar liquid from apricot shell is carried out by removing sand and stone impurities from apricot shell, dry distilling, adding purified apricot shell into dry-distilling kettle, heating while decomposing at 450-550 degree under isolated air for 4-6 hrs, condensing for gas-phase product induced from dry-distilling kettle to obtain condensed crude wood vinegar liquid, laying aside above 30 days in container, separating out three layers, rectifying, removing impurities of upper and lower layer, rectifying for middle layer to obtain refined wood vinegar liquid. It's non-toxic, non-pollution, green, has high effective-ingredient content and better quality and smells good.

Description

technical field [0001] The invention relates to a process for extracting wood vinegar from apricot shells, belonging to the technical field of fine chemicals. Background technique [0002] Wood vinegar is a liquid product obtained by condensing and cooling the gaseous flue gas during dry distillation of woody materials. It is a pure natural, broad-spectrum, active compound biological preparation composed of more than 200 ingredients, with a unique smoky aroma. And because the wood vinegar comes from nature, the products and preparations made from it can be decomposed in a natural state and do not remain in the soil. It is considered a green product and is being paid more and more attention by countries all over the world. There are certain differences in the composition of vinegar obtained by different raw materials. At present, there is no report on the method of extracting wood vinegar from apricot shell. Contents of the invention [0003] In order to solve the above ...

Claims

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Application Information

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IPC IPC(8): C10C5/00
CPCY02E50/14Y02E50/10
Inventor 梁雷李国君
Owner LIAONING UNIVERSITY
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