CN115125024A - Refining and purifying method of natural bamboo vinegar stock solution - Google Patents
Refining and purifying method of natural bamboo vinegar stock solution Download PDFInfo
- Publication number
- CN115125024A CN115125024A CN202110312288.6A CN202110312288A CN115125024A CN 115125024 A CN115125024 A CN 115125024A CN 202110312288 A CN202110312288 A CN 202110312288A CN 115125024 A CN115125024 A CN 115125024A
- Authority
- CN
- China
- Prior art keywords
- extraction
- carbon dioxide
- bamboo vinegar
- liquid
- stock solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 20
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 20
- 241001330002 Bambuseae Species 0.000 title claims abstract description 20
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 20
- 239000011425 bamboo Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 235000021419 vinegar Nutrition 0.000 title claims abstract description 14
- 239000000052 vinegar Substances 0.000 title claims abstract description 14
- 238000007670 refining Methods 0.000 title claims abstract description 6
- 239000011550 stock solution Substances 0.000 title claims abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000605 extraction Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 12
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000706 filtrate Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims abstract description 3
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 238000004821 distillation Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000001577 simple distillation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a refining and purifying method of natural bamboo vinegar stock solution, which comprises the following steps: (1) adding 4-5% of activated carbon into the bamboo cool stock solution, heating and stirring for 30min, standing, filtering, removing filter residue, and collecting filtrate; (2) centrifuging the filtrate, and collecting the separated liquid; (3) and (3) putting the separation liquid into an extraction kettle for carbon dioxide extraction, taking carbon dioxide fluid as an extraction solvent, and taking an ethanol solution with the volume concentration of 60-70% as an entrainer, wherein the benzene is taken under the pressure of about 30Mpa, the extraction temperature is about 5 ℃, the carbon dioxide flow is 13L/h, and the time is about 60min, so as to obtain the refined bamboo vinegar. The refined bamboo vinegar liquid prepared by the purification method has high purity, no tar and no smoke smell.
Description
Technical Field
The invention relates to the field of bamboo pyrolysis and cooling liquid purification, in particular to a method for refining a liquid product generated in a bamboo carbonization process.
Background
The bamboo vinegar liquid is obtained by collecting gas generated by pyrolysis in the process of burning fresh bamboo charcoal and cooling the gas at normal temperature. The bamboo vinegar liquid contains more than 200 kinds of natural high molecular organic compounds, such as organic acids, alcohols, ketones, aldehydes, esters and trace alkaline components.
The bamboo vinegar liquid is refined and purified by three methods, namely a standing method, a medicine refining method and a distillation method, and the distillation method is usually a simple distillation method and a rectification distillation method. The simple distillation method is that the mixture to be separated is placed in a distillation still, heated and partially evaporated, the vapour discharged from the distillation still is introduced into a condenser, and due to the cooling action the vapour is converted into liquid state in the condenser, and the produced distillate flows into a collector. The rectification method is a method of utilizing the interaction of steam generated in a distillation device and steam distilled out previously and liquid (reflux liquid) obtained by local refrigeration, and has the advantages of higher separation degree, large energy consumption and high organic acid loss.
Disclosure of Invention
The invention aims to solve the problem of providing a method for purifying refined bamboo vinegar without tar and smoke smell, and in order to realize the purpose, the invention adopts the following scheme, which comprises the following preparation steps:
(1) adding 4-5% of activated carbon into the raw bamboo cool liquid, heating and stirring for 30min, standing, filtering, removing filter residues, and collecting filtrate;
(2) centrifuging the filtrate, and collecting the separated liquid;
(3) and (3) putting the separation liquid into an extraction kettle for carbon dioxide extraction, taking carbon dioxide fluid as an extraction solvent, and taking 60-70% ethanol solution as an entrainer, wherein the benzene is extracted under the pressure of about 30Mpa, the extraction temperature is about 5 ℃, the carbon dioxide flow is 13L/h, and the time is about 60min, so as to obtain the refined bamboo vinegar.
The heating temperature in the step (1) is about 55 ℃, the condition is mild, and the speed of adsorbing impurities by the activated carbon is accelerated.
In the step (1), the filtration is carried out by adopting a plate-and-frame filter press.
The separation condition in the step (2) is 6000r/min of rotation speed, 0-4 ℃ and 30min of time.
The separation liquid filled in the step (3) accounts for about 30% of the extraction kettle, and extraction is facilitated.
The separation liquid filled in the step (3) accounts for 20 percent of the extraction kettle.
Compared with the prior art, the invention has the beneficial effects that:
(1) before carbon dioxide extraction, the invention carries out physical adsorption and centrifugal separation by active carbon to carry out coarse extraction, thereby removing tar and smoke smell, removing partial impurities and shortening the carbon dioxide extraction time.
(2) Extracting with carbon dioxide, sequentially extracting effective components with high and low boiling point, polarity and molecular weight, and controlling conditions to obtain optimal refined bamboo vinegar liquid without destroying effective components of bamboo vinegar liquid, with high purity.
Claims (6)
1. A refining and purifying method of natural bamboo vinegar stock solution is characterized by comprising the following preparation steps:
(1) adding 4-5% of activated carbon into the raw bamboo cool liquid, heating and stirring for 30min, standing, filtering, removing filter residues, and collecting filtrate;
(2) centrifuging the filtrate, and collecting the separated liquid;
(3) and (3) putting the separated liquid into an extraction kettle for carbon dioxide extraction, taking carbon dioxide fluid as an extraction solvent, and taking an ethanol solution with the volume concentration of 60-70% as an entrainer, wherein the extraction pressure is about 30Mpa, the extraction temperature is about 5 ℃, the carbon dioxide flow is 13L/h, and the time is about 60min, so as to obtain the refined bamboo vinegar.
2. The method of claim 1, wherein the heating temperature is about 55 ℃, the conditions are mild, and the speed of adsorbing impurities by the activated carbon is accelerated.
3. The filtration according to claim 1 is carried out using a plate and frame filter press.
4. The separation conditions according to claim 1 are a rotation speed of 6000r/min, a temperature of 0-4 ℃ and a time of 30 min.
5. The separation liquid filled in the extraction kettle accounts for about 30 percent of the extraction kettle according to the claim 1, and is beneficial to extraction.
6. The separation liquid charged according to claim 1 is 20% of the extraction vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312288.6A CN115125024A (en) | 2021-03-24 | 2021-03-24 | Refining and purifying method of natural bamboo vinegar stock solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312288.6A CN115125024A (en) | 2021-03-24 | 2021-03-24 | Refining and purifying method of natural bamboo vinegar stock solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115125024A true CN115125024A (en) | 2022-09-30 |
Family
ID=83374421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110312288.6A Pending CN115125024A (en) | 2021-03-24 | 2021-03-24 | Refining and purifying method of natural bamboo vinegar stock solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115125024A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164248A (en) * | 2014-08-28 | 2014-11-26 | 桂林市艾康科技有限公司 | Preparation method of refined bamboo vinegar |
| CN107903929A (en) * | 2017-11-24 | 2018-04-13 | 华益药业科技(安徽)有限公司 | A kind of natural high-quality bamboo vinegar and preparation method thereof |
-
2021
- 2021-03-24 CN CN202110312288.6A patent/CN115125024A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164248A (en) * | 2014-08-28 | 2014-11-26 | 桂林市艾康科技有限公司 | Preparation method of refined bamboo vinegar |
| CN107903929A (en) * | 2017-11-24 | 2018-04-13 | 华益药业科技(安徽)有限公司 | A kind of natural high-quality bamboo vinegar and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100497525C (en) | Preparation process of refined bamboo vinegar liquid | |
| JP2020044530A5 (en) | ||
| CN107337593B (en) | Preparation method of coenzyme Q10 pure product | |
| CN104164248A (en) | Preparation method of refined bamboo vinegar | |
| CN113633019A (en) | Cigar flavor tobacco extract and preparation method thereof | |
| CN101870637A (en) | Technology for extracting and preparing policosanol | |
| CN115125024A (en) | Refining and purifying method of natural bamboo vinegar stock solution | |
| US20230399351A1 (en) | Method for purifying sucralose | |
| CN110668999B (en) | Method for continuously purifying 2-chloro-5-methylpyridine by rectification-crystallization coupling process | |
| US2859117A (en) | Treatment of alcoholic liquors | |
| CN101417917B (en) | Method for preparing high-purity all-trans lycopene crystal | |
| CN100509757C (en) | Purification method of *N-L-arginine | |
| AU2019307736B2 (en) | Levulinic acid purification | |
| CN112280621A (en) | Rosemary essential oil extraction process | |
| CN102936242A (en) | Method for comprehensively utilizing arrowroot | |
| CN108690710B (en) | Preparation method of rapeseed oil | |
| US20230219872A1 (en) | Industrial extraction method of cannabidiol | |
| CN111995517A (en) | Preparation method of eicosapentaenoic acid ethyl ester | |
| CN111518057A (en) | Acesulfame potassium crystal liquid purification treatment method | |
| CN116515559B (en) | Method for extracting heavy essential oil based on subcritical low-temperature extraction process | |
| CN110872540B (en) | Method for extracting unsaturated fatty acid | |
| CN114854495B (en) | Technological method for extracting Damascus rose essential oil through sectional distillation | |
| CN112500933A (en) | Process for purification of crude fatty acids | |
| CN112724012B (en) | Method for refining long-chain dibasic acid | |
| CN115785034A (en) | System for recovering furfural from phenolic resin waste liquid and recovery method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 210000, Room 509, Building A2, Huizhi Science and Technology Park, Hengtai Road, Nanjing Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant after: Jiangsu Huajun Lvfan Environmental Technology Co.,Ltd. Address before: Room 501, No. 88-1, Dongfang City, Xuanwu District, Nanjing City, Jiangsu Province, 210000 Applicant before: Jiangsu Huajun Lvfan Environmental Technology Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information |