CN108795468B - Method for purifying high-purity bamboo vinegar - Google Patents
Method for purifying high-purity bamboo vinegar Download PDFInfo
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- CN108795468B CN108795468B CN201810682142.9A CN201810682142A CN108795468B CN 108795468 B CN108795468 B CN 108795468B CN 201810682142 A CN201810682142 A CN 201810682142A CN 108795468 B CN108795468 B CN 108795468B
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- bamboo vinegar
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C5/00—Production of pyroligneous acid distillation of wood, dry distillation of organic waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The invention provides a method for purifying high-purity bamboo vinegar liquid, and relates to the technical field of liquid purification. The purification method of the high-purity bamboo vinegar mainly comprises the following steps: centrifuging, mixing and heating, carrying out suction filtration while the mixture is hot, mixing and filtering, distilling at normal pressure, distilling at reduced pressure and the like; the method overcomes the defects of the prior art, provides a method for purifying the high-purity bamboo vinegar liquid, effectively improves the purity of the bamboo vinegar liquid, reduces impurities in the bamboo vinegar liquid, can reduce the content of water in the bamboo vinegar liquid, improves the concentration of the bamboo vinegar liquid, and enhances the application effect of the bamboo vinegar liquid.
Description
Technical Field
The invention relates to the technical field of liquid purification, in particular to a method for purifying high-purity bamboo vinegar.
Background
The bamboo vinegar is a liquid product obtained by pyrolyzing bamboo wood, and is a mixture of more than 200 substances such as organic acid, phenols, ketones, aldehydes, alcohols, heterocycles and the like. The bamboo vinegar has many functions, and has good permeability and absorbability to plant and animal tissues, and also has effect in eliminating feces of livestock and foul smell of kitchen waste. The bamboo vinegar liquid can also play a role in plant hormone, and trace amount of bamboo vinegar liquid is added into crops, so that the effects of promoting the rooting, the germination and the growth of the plants and improving the taste of fruits can be achieved, and the bamboo vinegar liquid can be widely applied to various fields of agriculture, medical treatment, health care and the like. The yield of the bamboo vinegar liquid is different according to the types of the bamboo wood, the water content of the bamboo wood and the pyrolysis process, and the components of the bamboo vinegar liquid are continuously changed according to the differences of a collection method, pyrolysis temperature, storage conditions and the like. Although the prior bamboo vinegar has a certain market scale, due to the problems of production technology, the product has unstable quality, poor quality, unstable and uniform color depth, and turbidity phenomenon appears, which directly influences the application and sale of the product.
The common refining method of the bamboo vinegar liquid mainly comprises a settling method and a distillation method, wherein the settling method is to pour the stock solution of the bamboo vinegar into a container and age the stock solution for weeks or months, and the method is simple to operate, but the whole process consumes long time and has low efficiency; the distillation method comprises placing the stock solution of bamboo vinegar into a distillation still, heating for evaporation, introducing the vapor discharged from the evaporation still into a condenser for cooling, and collecting refined bamboo vinegar solution.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a purification method of high-purity bamboo vinegar, which can effectively improve the purity of the bamboo vinegar and reduce impurities in the bamboo vinegar, and can reduce the content of water in the bamboo vinegar, improve the concentration of the bamboo vinegar and enhance the application effect of the bamboo vinegar.
In order to achieve the above purpose, the technical scheme of the invention is realized by the following technical scheme:
a method for purifying high-purity bamboo vinegar liquid mainly comprises the following steps:
(1) collecting crude bamboo vinegar liquid, and centrifuging the crude bamboo vinegar liquid in a centrifuge to obtain clear liquid for later use;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
Preferably, the rotation speed of the centrifuge in the step (1) is 800-.
Preferably, the temperature for sealing, heating and heat preservation in the step (2) is 40-60 ℃.
Preferably, the standing time in the step (3) is 1-1.5h, and the filtering operation is carried out by adopting a plate-and-frame filter press in the filtering step.
Preferably, the temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
Preferably, the temperature of the reduced pressure distillation in the step (5) is 40 to 50 ℃.
The invention provides a method for purifying high-purity bamboo vinegar, which has the advantages that compared with the prior art:
(1) the invention firstly adopts a centrifuge to carry out centrifugal treatment on the rough bamboo vinegar liquid, can effectively remove the gray matter in the rough bamboo vinegar liquid, leads the rough bamboo vinegar liquid to be relatively clear, and reduces the time of later filtration.
(2) In the steps of the invention, calcium carbide and anhydrous calcium chloride are added into the bamboo vinegar liquid, and the heat preservation treatment is carried out for a period of time, so that the content of water in the bamboo vinegar liquid can be reduced and the concentration of the bamboo vinegar liquid can be improved while sulfur dioxide impurities in the bamboo vinegar liquid are effectively removed.
(3) The distillation method of the bamboo vinegar liquid adopts the steps of atmospheric distillation and then reduced pressure distillation, so that the cracking of effective substances in the bamboo vinegar liquid can be effectively prevented, and the quality of the finally obtained high-purity bamboo vinegar liquid is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a method for purifying high-purity bamboo vinegar liquid mainly comprises the following steps:
(1) collecting crude bamboo vinegar liquid at 80 deg.C of chimney opening of charcoal kiln, and centrifuging the crude bamboo vinegar liquid in centrifuge to obtain clear liquid;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
The rotating speed of the centrifuge in the step (1) is 800-.
The temperature for sealing, heating and preserving heat in the step (2) is 40-60 ℃.
And (4) standing for 1-1.5h in the step (3), and performing filtering operation by adopting a plate-and-frame filter press in the filtering step.
The temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
The temperature of the reduced pressure distillation in the step (5) is 40-50 ℃.
Detecting the water content of the obtained bamboo vinegar liquid to be 5%.
Example 2:
a method for purifying high-purity bamboo vinegar liquid mainly comprises the following steps:
(1) collecting crude bamboo vinegar liquid at the chimney opening temperature of 90 deg.C, and centrifuging the crude bamboo vinegar liquid in a centrifuge to obtain clear liquid;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
The rotating speed of the centrifuge in the step (1) is 800-.
The temperature for sealing, heating and preserving heat in the step (2) is 40-60 ℃.
And (4) standing for 1-1.5h in the step (3), and performing filtering operation by adopting a plate-and-frame filter press in the filtering step.
The temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
The temperature of the reduced pressure distillation in the step (5) is 40-50 ℃.
The water content of the obtained bamboo vinegar liquid is detected to be 7%.
Example 3:
a method for purifying high-purity bamboo vinegar liquid mainly comprises the following steps:
(1) collecting crude bamboo vinegar liquid at the chimney opening temperature of 120 deg.C, and centrifuging the crude bamboo vinegar liquid in a centrifuge to obtain clear liquid;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
The rotating speed of the centrifuge in the step (1) is 800-.
The temperature for sealing, heating and preserving heat in the step (2) is 40-60 ℃.
And (4) standing for 1-1.5h in the step (3), and performing filtering operation by adopting a plate-and-frame filter press in the filtering step.
The temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
The temperature of the reduced pressure distillation in the step (5) is 40-50 ℃.
The water content of the obtained bamboo vinegar liquid is detected to be 6%.
Example 4:
a method for purifying high-purity bamboo vinegar liquid mainly comprises the following steps:
(1) collecting crude bamboo vinegar liquid at 150 deg.C at chimney opening of charcoal kiln, and centrifuging the crude bamboo vinegar liquid in a centrifuge to obtain clear liquid;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
The rotating speed of the centrifuge in the step (1) is 800-.
The temperature for sealing, heating and preserving heat in the step (2) is 40-60 ℃.
And (4) standing for 1-1.5h in the step (3), and performing filtering operation by adopting a plate-and-frame filter press in the filtering step.
The temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
The temperature of the reduced pressure distillation in the step (5) is 40-50 ℃.
Detecting the water content of the obtained bamboo vinegar liquid to be 4%.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The method for purifying the high-purity bamboo vinegar is characterized by mainly comprising the following steps of:
(1) collecting crude bamboo vinegar liquid, and centrifuging the crude bamboo vinegar liquid in a centrifuge to obtain clear liquid for later use;
(2) adding calcium carbide and anhydrous calcium chloride into the clear liquid, sealing, heating, keeping the temperature for 20-30min, and performing suction filtration while the clear liquid is hot to obtain filtrate A for later use;
(3) cooling the filtrate obtained in the step (2) to room temperature, adding bentonite, stirring, standing, and filtering to obtain a filtrate B for later use;
(4) putting the filtrate B in a closed distillation device, carrying out distillation and condensation at normal pressure, and collecting condensate;
(5) and (4) adding the condensate obtained in the step (4) into a distillation device, extracting air by using a vacuum pump, carrying out reduced pressure distillation, and condensing to obtain the high-purity bamboo vinegar liquid.
2. The method for purifying bamboo vinegar with high purity as claimed in claim 1, wherein: the rotating speed of the centrifuge in the step (1) is 800-.
3. The method for purifying bamboo vinegar with high purity as claimed in claim 1, wherein: the temperature for sealing, heating and preserving heat in the step (2) is 40-60 ℃.
4. The method for purifying bamboo vinegar with high purity as claimed in claim 1, wherein: and (4) standing for 1-1.5h in the step (3), and performing filtering operation by adopting a plate-and-frame filter press in the filtering step.
5. The method for purifying bamboo vinegar with high purity as claimed in claim 1, wherein: the temperature of the atmospheric distillation in the step (4) is 105-110 ℃.
6. The method for purifying bamboo vinegar with high purity as claimed in claim 1, wherein: the temperature of the reduced pressure distillation in the step (5) is 40-50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682142.9A CN108795468B (en) | 2018-06-27 | 2018-06-27 | Method for purifying high-purity bamboo vinegar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810682142.9A CN108795468B (en) | 2018-06-27 | 2018-06-27 | Method for purifying high-purity bamboo vinegar |
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| Publication Number | Publication Date |
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| CN108795468A CN108795468A (en) | 2018-11-13 |
| CN108795468B true CN108795468B (en) | 2020-12-01 |
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| CN201810682142.9A Active CN108795468B (en) | 2018-06-27 | 2018-06-27 | Method for purifying high-purity bamboo vinegar |
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- 2018-06-27 CN CN201810682142.9A patent/CN108795468B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 二级蒸馏对竹醋液抑菌与抗氧化效果的影响;安琳等;《食品科学技术学报》;20140131;第32卷(第1期);第34-39页 * |
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