CN110681178A - Soxhlet extractor - Google Patents
Soxhlet extractor Download PDFInfo
- Publication number
- CN110681178A CN110681178A CN201810740807.7A CN201810740807A CN110681178A CN 110681178 A CN110681178 A CN 110681178A CN 201810740807 A CN201810740807 A CN 201810740807A CN 110681178 A CN110681178 A CN 110681178A
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- CN
- China
- Prior art keywords
- bottle
- extraction
- solvent
- evaporation
- soxhlet extractor
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- 238000000605 extraction Methods 0.000 claims abstract description 44
- 238000001704 evaporation Methods 0.000 claims abstract description 32
- 230000008020 evaporation Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 28
- 239000000126 substance Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000002386 leaching Methods 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000956 solid--liquid extraction Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0269—Solid material in other moving receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0292—Treatment of the solvent
- B01D11/0296—Condensation of solvent vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention relates to a Soxhlet extractor which adopts the following technical scheme: the utility model provides a soxhlet extractor mainly includes vacuum pump, condenser pipe, draws bottle, flourishing appearance sleeve, siphon, evaporating flask, support, water-bath, its characterized in that: the condenser pipe is fixed on the support, the upper end is connected with the vacuum pump, the lower end is connected with the extraction bottle, the neck of the extraction bottle is provided with a steam circulation hole, the bottom of the extraction bottle is provided with a siphon pipe, the sample containing sleeve is arranged inside the extraction bottle, the evaporation bottle is sleeved outside the extraction bottle, and the evaporation bottle is heated by water bath of a water bath kettle in a water bath manner, so that the invention has the advantages that: the solvent steam directly enters the condensing pipe through the steam flow through hole, so that the heat loss in the rising process of the solvent steam is reduced; the boiling point of the solvent is reduced and the evaporation efficiency of the solvent is improved by adopting a decompression method; by adopting the structure of combining the evaporation device and the extraction device, the part of the extraction bottle, which is lower than the outlet of the siphon tube, can be soaked in the solvent in the evaporation bottle, so that the temperature of the solvent in the extraction bottle is increased, and the leaching and extraction of substances are accelerated.
Description
Technical Field
The invention relates to the field of chemical experimental instruments, in particular to a Soxhlet extractor.
Background
The Soxhlet extractor is a common instrument for solid-liquid extraction, and the principle is as follows: the solid matter is continuously extracted by the pure solvent by utilizing the reflux and siphon of the solvent, so that the dosage of the solvent is reduced, and the extraction efficiency is higher. Chinese patent with application number CN201520423281.1 discloses a soxhlet extractor, which is characterized in that: the siphon hose is adopted, so that the loss rate of the Soxhlet extractor is reduced, the residue of the extracting solution is reduced, and meanwhile, the time of each extraction is changed by adjusting the height of the siphon hose, but the extract is damaged when a high-boiling-point solvent is adopted due to the poor thermal stability of certain active substances; in the device, the temperature of the Soxhlet extractor is far lower than that of the evaporation bottle, so that the leaching of substances is not facilitated; in the device, the connecting pipe is exposed in the air, so that the heat loss is serious when the solvent steam rises, and the solvent evaporation efficiency is reduced; when some fat or fine particles are extracted, the sample is easy to leak out from the gap of the filled filter paper along with the solvent, so that the siphon is blocked.
Disclosure of Invention
The present invention aims to provide a soxhlet extractor for solving the above-mentioned drawbacks.
Further, in order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a soxhlet extractor mainly includes vacuum pump, condenser pipe, draws bottle, flourishing appearance sleeve, siphon, evaporating flask, support, water-bath, its characterized in that: the condenser pipe is fixed on the support, the vacuum pump is connected to the upper end, the lower extreme is connected and is drawed the bottle, draws the bottleneck and opens there is the steam circulation hole, draws the bottle bottom and is equipped with the siphon, and the flourishing appearance sleeve is arranged in and is drawed the bottle inside, and the evaporation flask cover is outside drawing the bottle, and the evaporation flask passes through water bath kettle water bath heating.
Furthermore, the condenser pipe is a spherical condenser pipe or a snake-shaped condenser pipe.
Furthermore, the extraction bottle is arranged in the evaporation bottle, the bottom of the extraction bottle is connected with the siphon, and the part of the extraction bottle, which is lower than the outlet of the siphon, can be soaked in the solvent in the evaporation bottle, so that the temperature of the solvent in the extraction bottle is increased.
Furthermore, the interior of the extraction bottle is provided with a sample containing sleeve which can be composed of a glass filter medium or a sintered sand core, so that a siphon pipe is prevented from being blocked by a sample.
Furthermore, the top of the extraction bottle is of an inverted-truncated-cone-shaped structure, so that the tight connection between the extraction bottle and the condensation pipe can be realized, and the air tightness of the device is ensured.
Furthermore, the bottom of the condensation pipe is sleeved with a rubber gasket, so that the condensation pipe and the extraction bottle can be sealed.
The sample holding sleeve barrel body is composed of other filter media.
An auxiliary technical means derived from the necessary technical means is that the sample containing sleeve is replaced by a filter plate with filtering property.
An auxiliary technical means derived from the necessary technical means is that the sample containing sleeve is replaced by material containing filter paper directly wrapping the raw materials.
An auxiliary technical means derived from the necessary technical means is that the water bath kettle is replaced by heating equipment such as an electric heating furnace and the like.
An auxiliary technical means derived from the necessary technical means is that an ultrasonic device for promoting the leaching of the substances is additionally arranged outside the evaporation bottle.
An auxiliary technical means derived from the necessary technical means is that the evaporation bottle is a three-neck flask.
An auxiliary technical means derived from the above-mentioned necessary technical means is that an absorption pipe is connected between the condensation pipe and the vacuum pump to absorb the overflowed steam and prevent air pollution.
In conclusion, the invention has the advantages that: the structure that the evaporation bottle is nested with the extraction bottle is adopted, the neck of the extraction bottle is provided with a steam circulation hole, and steam directly enters the condensation pipe through the steam hole, so that the heat loss of the steam is reduced, and the evaporation efficiency is improved; the decompression method is adopted, so that the evaporation of the solvent is accelerated, the evaporation efficiency is improved, the boiling point of the solvent is reduced, and the structure of an extract substance is protected from being damaged; a sample containing sleeve with a filtering function is adopted to prevent the siphon pipe from being blocked by a sample; the extraction bottle is partially immersed in the solvent in the evaporation bottle, and the extraction bottle is also heated when the solvent vapor rises, so that the extraction temperature is increased, and the extraction efficiency is accelerated.
Drawings
FIG. 1 is a schematic structural diagram of a Soxhlet extractor according to an embodiment.
FIG. 2 is a schematic diagram of a Soxhlet extractor extraction flask.
Detailed Description
Example 1: referring to fig. 1-2, a soxhlet extractor mainly comprises a water outlet 1, a condensation pipe 2, a water inlet 3, an extraction bottle 4, a steam circulation hole 5, a siphon 6, an evaporation bottle 7, a water bath 8, a vacuum pump 9, a sample containing sleeve 10 and a support 11.
The use method comprises the following steps: before extraction, a sample is processed and then is loaded into a sample containing sleeve 10, the sample containing sleeve 10 is loaded into an extraction bottle 4, the extraction bottle 4 is loaded into an evaporation bottle 7 filled with a proper amount of solvent, the liquid level of the solvent is between the outlet of a siphon 6 and the bottom of the extraction bottle 4, a vacuum pump 9 is started to pump out air in a condensation pipe 2 and the evaporation bottle 7, so that the evaporation bottle 7 is in a negative pressure state, the temperature of a water bath kettle 8 is adjusted, the solvent is heated to be evaporated, solvent steam enters the extraction bottle 4 from the evaporation bottle 7 through a steam circulation hole 5 and then rises to the condensation pipe 2, the condensed solvent flows into the extraction bottle 4, the solvent in the extraction bottle 4 permeates into the sample containing sleeve 10 to leach the sample, when the liquid level in the extraction bottle 4 exceeds the highest position of the siphon 6, the extract flows back into the evaporation bottle 7 for a plurality of times, substances to be extracted can be enriched into the evaporation bottle 7, after extraction is finished, the vacuum pump 9 and the water bath 8 are turned off.
Furthermore, the height of the sample holding sleeve 10 is lower than the highest height of the siphon 6, and the solvent can fully soak the sample after entering the extraction bottle 4.
Furthermore, the liquid level of the solvent contained in the evaporation bottle 7 is positioned between the outlet of the siphon 6 and the bottom of the extraction bottle 4, the bottom of the extraction bottle 4 can be soaked in the solvent in the evaporation bottle 7 for heating, the temperature of the solvent in the extraction bottle 4 is increased, so that the extraction is accelerated, the liquid level is lower than the outlet of the siphon 6, and the static pressure of the liquid is prevented from hindering siphon backflow.
It is understood that the above is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art will understand that many modifications, variations or equivalents may be made within the spirit and scope of the present invention as defined in the claims, but they will fall within the scope of the present invention.
Claims (6)
1. The utility model provides a soxhlet extractor mainly includes vacuum pump, condenser pipe, draws bottle, flourishing appearance sleeve, siphon, evaporating flask, support, water-bath, its characterized in that: the condenser pipe is fixed on the support, the vacuum pump is connected to the upper end, the lower extreme is connected and is drawed the bottle, draws the bottleneck and opens there is the steam circulation hole, draws the bottle bottom and is equipped with the siphon, and the flourishing appearance sleeve is arranged in and is drawed the bottle inside, and the evaporation flask cover is outside drawing the bottle, and the evaporation flask passes through water bath kettle water bath heating.
2. The soxhlet extractor of claim 1, wherein: the condenser pipe is a spherical condenser pipe or a snakelike condenser pipe.
3. The soxhlet extractor of claim 1, wherein: the extraction bottle is arranged in the evaporation bottle, and the bottom of the extraction bottle is connected with the siphon.
4. The soxhlet extractor of claim 1, wherein: the extraction bottle is internally provided with a sample containing sleeve which can be composed of a glass filter medium or a sintered sand core.
5. The soxhlet extractor of claim 1, wherein: the top of the extracting bottle is of an inverted truncated cone-shaped structure.
6. The soxhlet extractor of claim 1, wherein: the bottom of the condensing pipe is sleeved with a rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740807.7A CN110681178A (en) | 2018-07-08 | 2018-07-08 | Soxhlet extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740807.7A CN110681178A (en) | 2018-07-08 | 2018-07-08 | Soxhlet extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110681178A true CN110681178A (en) | 2020-01-14 |
Family
ID=69107472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810740807.7A Pending CN110681178A (en) | 2018-07-08 | 2018-07-08 | Soxhlet extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110681178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113908582A (en) * | 2021-06-02 | 2022-01-11 | 江苏上上电缆集团新材料有限公司 | Soxhlet extraction device and method for efficiently separating inorganic filler and polymer matrix in thermoplastic cable material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444683A (en) * | 2008-12-04 | 2009-06-03 | 上海化工研究院 | Device for extracting specific components from solid sample |
| CN205659422U (en) * | 2016-06-11 | 2016-10-26 | 郑园 | Built -in evaporator |
| CN206730575U (en) * | 2017-04-11 | 2017-12-12 | 谱尼测试集团深圳公司 | A kind of reflux extraction bottle |
| CN107754371A (en) * | 2017-10-25 | 2018-03-06 | 佛山市蓝瑞欧特信息服务有限公司 | Prevent the apparatus,Soxhlet's of thermal degradation |
| CN208465242U (en) * | 2018-07-08 | 2019-02-05 | 余立汜 | A kind of Soxhlet extractor |
-
2018
- 2018-07-08 CN CN201810740807.7A patent/CN110681178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444683A (en) * | 2008-12-04 | 2009-06-03 | 上海化工研究院 | Device for extracting specific components from solid sample |
| CN205659422U (en) * | 2016-06-11 | 2016-10-26 | 郑园 | Built -in evaporator |
| CN206730575U (en) * | 2017-04-11 | 2017-12-12 | 谱尼测试集团深圳公司 | A kind of reflux extraction bottle |
| CN107754371A (en) * | 2017-10-25 | 2018-03-06 | 佛山市蓝瑞欧特信息服务有限公司 | Prevent the apparatus,Soxhlet's of thermal degradation |
| CN208465242U (en) * | 2018-07-08 | 2019-02-05 | 余立汜 | A kind of Soxhlet extractor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113908582A (en) * | 2021-06-02 | 2022-01-11 | 江苏上上电缆集团新材料有限公司 | Soxhlet extraction device and method for efficiently separating inorganic filler and polymer matrix in thermoplastic cable material |
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