CN203841098U - Device for removing volatile organic small molecule compounds from tobacco harm reduction material - Google Patents
Device for removing volatile organic small molecule compounds from tobacco harm reduction material Download PDFInfo
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- CN203841098U CN203841098U CN201420227677.4U CN201420227677U CN203841098U CN 203841098 U CN203841098 U CN 203841098U CN 201420227677 U CN201420227677 U CN 201420227677U CN 203841098 U CN203841098 U CN 203841098U
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- container
- cooling
- reduction material
- harm reduction
- heating
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- 239000000463 material Substances 0.000 title claims abstract description 72
- 230000009467 reduction Effects 0.000 title claims abstract description 49
- 241000208125 Nicotiana Species 0.000 title claims abstract description 47
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 47
- -1 small molecule compounds Chemical class 0.000 title abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 150000001875 compounds Chemical class 0.000 claims description 24
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 17
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- KVNYFPKFSJIPBJ-UHFFFAOYSA-N 1,2-diethylbenzene Chemical compound CCC1=CC=CC=C1CC KVNYFPKFSJIPBJ-UHFFFAOYSA-N 0.000 description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000642 dynamic headspace extraction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000004816 dichlorobenzenes Chemical class 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XHUZSRRCICJJCN-UHFFFAOYSA-N 1-ethenyl-3-ethylbenzene Chemical compound CCC1=CC=CC(C=C)=C1 XHUZSRRCICJJCN-UHFFFAOYSA-N 0.000 description 1
- WHFHDVDXYKOSKI-UHFFFAOYSA-N 1-ethenyl-4-ethylbenzene Chemical compound CCC1=CC=C(C=C)C=C1 WHFHDVDXYKOSKI-UHFFFAOYSA-N 0.000 description 1
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Landscapes
- Manufacture Of Tobacco Products (AREA)
Abstract
The utility model discloses a device for removing volatile organic small molecule compounds from a tobacco harm reduction material. The device comprises a heating device, a cooling device and a vacuum system. The heating device comprises a first container and a heating system. The cooling device comprises a cooling system and a second container or a second container series group which is formed by connecting multiple second containers in series. When the cooling device comprises the cooling system and one second container, the first container, the second container and the vacuum system are communicated in sequence in a sealed mode through a pipeline. When the cooling device comprises the cooling system and the second container series group, every two adjacent second containers are communicated with each other through a first connecting pipe in a sealed mode. The device for removing volatile organic small molecule compounds from the tobacco harm reduction material is simple in structure, convenient to operate, and capable of thoroughly removing the volatile organic small molecule compounds from the tobacco harm reduction material, and the removing effect remains stable for a long time.
Description
Technical field
The utility model relates to a kind of removal device of organic micromolecule compound, particularly a kind of device of removing volatility organic micromolecule compound in tobacco harm reduction material in cigarette field.
Background technology
Tobacco harm reduction material is that a class can reduce the cigarette additive of tobacco to harm, and conventional tobacco harm reduction material comprises nanocatalyst, combustion adjuvant, oxidant and adsorbent.In the production process of tobacco harm reduction material, often can add some volatility raw material or solvents; thereby cause having adsorbed in material a large amount of volatile materials; these volatile materials that can be contained in tobacco harm reduction material are very easy to overflow in tobacco production process, and health is caused to adverse effect.Therefore, should, using before these tobacco harm reduction materials, it be processed, remove residual volatile ingredient.
In prior art, the general heating means that adopt are removed the volatile materials containing in harm reduction material, but the simple method that adopts heating can not thoroughly be removed volatile materials, especially, heating means are for the volatile materials poor effect of removing sorbing material inside, and As time goes on, these remain in inner volatile materials and easily overflow, thereby product is caused to harmful effect.For also corresponding difference of its device adopting of different removal methods.
In prior art, do not have a kind of device that can meet volatility organic micromolecule compound in the safe handling of tobacco harm reduction material and the removal harm reduction material of correlated quality safety standards dictate.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is intended to overcome deficiency of the prior art, a kind of device of removing volatility organic micromolecule compound in tobacco harm reduction material is provided, this apparatus structure is simple, thoroughly removes and trap the easy to operate of volatility organic micromolecule compound residual in harm reduction material.
For achieving the above object and other relevant objects, the utility model is achieved through the following technical solutions:
A device of removing volatility organic micromolecule compound in tobacco harm reduction material, described device comprises heater, cooling device and vacuum system;
Described heater comprises the first container and heating system, and the cavity bottom of described the first container is placed in the heating chamber of described heating system;
Described cooling device comprises cooling system, and a second container or the second container series connection group that is in series by multiple second containers, and the cavity of described second container is placed in the cooling chamber of described cooling system;
When described cooling device comprises cooling system and a second container, between described the first container, second container and vacuum system, seal successively connection by pipeline;
When described cooling device comprises cooling system and second container series connection group, between adjacent described second container, be communicated with by the first tube connector sealing; Between the second container of described second container series connection group one end and the first container, be communicated with by the second tube connector sealing; The second container that is positioned at the described second container series connection group other end is communicated with by the 3rd tube connector sealing with described vacuum system.
Preferably, described heating system is selected from oil bath pan, water-bath or heating jacket.
Preferably, described cooling system is selected from cooled with liquid nitrogen device, is placed with container or the constant temp cooling water bath of mixture of ice and water.
Cooled with liquid nitrogen device described in the utility model refers to the container that is contained with liquid nitrogen.
Preferably, described vacuum system is vavuum pump.
Preferably, described the first container is glass flask.
Preferably, described second container is cold hydrazine.
The device of volatility organic micromolecule compound in disclosed removal tobacco harm reduction material in the utility model, can heat tobacco harm reduction material by heater, by cooling device, the organic micromolecule compound shooting in tobacco harm reduction material is carried out to cold-trap again, and heating process and cooling procedure be all to carry out, further accelerated the volatilization of volatility organic molecule in tobacco harm reduction material under vacuum condition.
A kind of method that uses disclosed said apparatus in the utility model to remove volatility organic micromolecule compound in tobacco harm reduction material, be specially: tobacco harm reduction material is placed in to the first container, according to above-mentioned disclosed method of attachment in the utility model, device is connected, first open cold radiator cooler, then opens heater and vacuum system.
In above-mentioned using method, design parameter arranges as follows:
1) heating-up temperature of heater is 50-200 DEG C.
2) vacuum plant is the vavuum pump that vacuum reaches 0.001-10mmHg.
Adopt above-mentioned parameter and device to process to remove residual volatile ingredient continuously tobacco harm reduction material, then adopt purge and trap-gas chromatography combined with mass spectrometry method to measure residual volatile materials in sample before and after processing.
In the utility model, its beneficial effect of disclosed device is mainly at following three aspects:: the first, by the combination of vacuum system and heater, can effectively remove volatile small molecule compound and the lower material of boiling point in tobacco harm reduction material.The second, whole system is in full closeding state, and in removing volatile small molecule compound, volatile materials can not leak to surrounding environment, thereby can not have a negative impact to operator and working environment.The 3rd, described method is easy flexibly, can increase as required or reduce the quantity of cooling device, ensures that volatile materials effective cooling is to capturing device, thereby can further carry out structure composition analysis to it.
This apparatus structure is simple, easy to operate, and can remove more thoroughly the volatility organic micromolecule compounds such as toluene in tobacco harm reduction material, ethylbenzene, styrene, diethylbenzene, dichloro-benzenes, and removal effect can keep stable in a long time.
To sum up, in the removal tobacco harm reduction material providing in the utility model, the device of volatility organic micromolecule compound has overcome defect of the prior art and creative.
Brief description of the drawings
Fig. 1 is the schematic diagram 1 of the device of volatility organic micromolecule compound in the removal tobacco harm reduction material in the utility model embodiment 1.
Fig. 2 is the schematic diagram 2 of the device of volatility organic micromolecule compound in the removal tobacco harm reduction material in the utility model embodiment 2.
Wherein in Fig. 1 and Fig. 2:
1 is heater
11 is the first container
12 is heating system
2 is cooling device
21 is cooling system
221 is second container
222 is second container
3 is vacuum system
41 is the first tube connector
42 is the second tube connector
43 is the 3rd tube connector.
Detailed description of the invention
By specific instantiation, embodiment of the present utility model is described below, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this description.The utility model can also be implemented or be applied by other different detailed description of the invention, and the every details in this description also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present utility model.
Notice, appended graphic the illustrated structure of this description, ratio, size etc., all contents in order to coordinate description to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in the scope that technology contents that the utility model discloses can contain.Simultaneously, in this description, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " door " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
Embodiment 1
Shown in figure 1, a kind of device of removing volatility organic micromolecule compound in tobacco harm reduction material, described device comprises heater 1, cooling device 2 and vacuum system 3;
Described heater 1 comprises the first container 11 and heating system 12, and the cavity bottom of described the first container 11 is placed in the heating chamber of described heating system 12;
Described cooling device 2 comprises cooling system 21, and the second container series connection group 22 being in series by multiple second containers 221,222, and the cavity of described second container 221,222 is placed in the cooling chamber of described cooling system 21;
Described cooling device comprises that cooling system 21 and second container series connection organize at 22 o'clock, between adjacent described second container 221,222, is communicated with by the first tube connector 41 sealings; Organize between the second container 221 of 22 one end and the first container 11 and be communicated with by the second tube connector 42 sealings in described second container series connection; Being positioned at the second container 222 that described second container series connection organizes 22 other ends is communicated with by the 3rd tube connector 43 sealings with described vacuum system 3.
Particularly, described heating system 12 is oil bath pan.
Particularly, described cooling system 21 is constant temp cooling water bath.
Particularly, described vacuum system 3 is vavuum pump.The vacuum of vavuum pump reaches 0.001-10mmHg.
Particularly, described the first container 11 is glass flask.More specifically, the round-bottomed flask that described in the present embodiment, the first container 11 is 1L for volume capacity.
Particularly, described second container 221,222 is cold hydrazine.
More specifically, described cold hydrazine is spherical cold hydrazine.
The device of volatility organic micromolecule compound in disclosed removal tobacco harm reduction material in the present embodiment, can heat tobacco harm reduction material by heater, by cooling device, the organic micromolecule compound shooting in tobacco harm reduction material is carried out to cold-trap again, and heating process and cooling procedure be all to carry out, further accelerated the volatilization of volatility organic molecule in tobacco harm reduction material under vacuum condition.
In use the present embodiment, disclosed said apparatus is removed the method for volatility organic micromolecule compound in tobacco harm reduction material, be specially: tobacco harm reduction material is placed in to the first container 11, according to above-mentioned disclosed method of attachment in the present embodiment, device is connected, first open cold radiator cooler 2, then opens heater 1 and vacuum system 3.
In above-mentioned using method, design parameter arranges as follows:
1) heating-up temperature of heater 1 is 140 DEG C.
2) vacuum plant 3 reaches the vavuum pump of 0.1mmHg for vacuum.
Adopt above-mentioned parameter and device to process continuously at least 72 hours to remove residual volatile ingredient to tobacco harm reduction material, then adopt purge and trap-gas chromatography combined with mass spectrometry method to measure residual volatile materials in sample before and after processing, described volatile materials comprises benzene, toluene, ethylbenzene, dimethylbenzene, styrene, diethylbenzene, 3-ethyl styrene, 4-ethyl styrene, dichloro-benzenes, benzaldehyde and benzyl carbinol.
Purge and trap method condition is: take 0.5g sample, pack in the special sample injection bottle of the dynamic head space of 40mL; At 40 DEG C, purge 60min taking helium as purging device, purge flow rate 40mL/min; Desorption temperature is 260 DEG C, time 2min, desorption flow 20mL/min.GC conditions is: use wax post, post flow is made as 2mL/min, split ratio 10:1, and temperature programming program is 40 DEG C and keeps 5min, rises to 200 DEG C with 2.5 DEG C/min, 20 DEG C/min rises to 230 DEG C and keeps 15min.
The computational methods of volatile organic matter removal efficiency are as follows:
the removal efficiency that wherein Q is certain volatile compound, A is the peak area of this compound that after processing, material obtains after purge and trap, A
reffor the peak area of undressed this compound obtaining after purge and trap with a collection of harm reduction material sample.
Test result is in table 1, uses as seen from the results in Table 1 in the utility model when device is processed, and the volatile materials being less than for quality in the tobacco harm reduction material sample of 100g has good removal effect to be better than relatively large sample removal effect.
In addition, carry out temporal tracking to processing rear volatile materials removal effect, taking with a collection of untreated samples as contrast, respectively in February, after March and May, the sample before and after processing is carried out to volatile content test, test result is as shown in table 2, can find to use the removal effect that in the utility model, device carries out volatile materials removal to tobacco harm reduction material to keep in a long time stable by table 2, do not exist because removal effect is not thorough, cause As time goes on, in particle hole, the volatile materials of absorption is diffused into outside gradually, and then the phenomenon that causes volatile materials to increase.In explanation employing the present embodiment, device is comparatively thoroughly to the removal of volatile materials in tobacco harm reduction material sample thus.
Table 1 to 100g and 500g tobacco harm reduction material processed after volatile materials clearance
After table 2 100g tobacco harm reduction material processed, volatile materials removal effect is followed the tracks of
Embodiment 2
Shown in figure 2, a kind of device of removing volatility organic micromolecule compound in tobacco harm reduction material, described device comprises heater 1, cooling device 2 and vacuum system 3;
Described heater 1 comprises the first container 11 and heating system 12, and the cavity bottom of described the first container 11 is placed in the heating chamber of described heating system 12;
Described cooling device 2 comprises cooling system 21, and a second container 221, and the cavity of described second container 221,222 is placed in the cooling chamber of described cooling system 21;
When described cooling device comprises cooling system 21 and a second container 221, between described the first container 11, second container 221 and vacuum system 3, seal successively connection by pipeline;
Particularly, described heating system 12 is oil bath pan.
Particularly, described cooling system 21 is constant temp cooling water bath.
Particularly, described vacuum system 3 is vavuum pump.The vacuum of vavuum pump reaches 0.001-10mmHg.
Particularly, described the first container 11 is glass flask.More specifically, the round-bottomed flask that described in the present embodiment, the first container 11 is 1L for volume capacity.
Particularly, described second container 221,222 is cold hydrazine.
More specifically, described cold hydrazine is spherical cold hydrazine.
The device of volatility organic micromolecule compound in disclosed removal tobacco harm reduction material in the present embodiment, can heat tobacco harm reduction material by heater, by cooling device, the organic micromolecule compound shooting in tobacco harm reduction material is carried out to cold-trap again, and heating process and cooling procedure be all to carry out, further accelerated the volatilization of volatility organic molecule in tobacco harm reduction material under vacuum condition.
So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
The above, be only better embodiment of the present utility model, not the technical solution of the utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in protection domain of the present utility model.
Claims (6)
1. a device of removing volatility organic micromolecule compound in tobacco harm reduction material, is characterized in that, described device comprises heater (1), cooling device (2) and vacuum system (3);
Described heater (1) comprises the first container (11) and heating system (12), and the cavity bottom of described the first container (11) is placed in the heating chamber of described heating system (12);
Described cooling device (2) comprises cooling system (21), and a second container (221) or the second container series connection group (22) that is in series by multiple second containers (221,222), the cavity of described second container (221,222) is placed in the cooling chamber of described cooling system (21);
When described cooling device comprises cooling system (21) and a second container (221), between described the first container (11), second container (221) and vacuum system (3), seal successively connection by pipeline;
When described cooling device comprises cooling system (21) and second container series connection group (22), between adjacent described second container (221,222), be communicated with by the first tube connector (41) sealing; Be positioned between the second container (221) of described second container series connection group (22) one end and the first container (11) and be communicated with by the second tube connector (42) sealing; The second container (222) that is positioned at described second container series connection group (22) other end is communicated with by the 3rd tube connector (43) sealing with described vacuum system (3).
2. device as claimed in claim 1, is characterized in that, described heating system (12) is selected from oil bath pan, water-bath or heating jacket.
3. device as claimed in claim 1, is characterized in that, described cooling system (21) is selected from cooled with liquid nitrogen device, is placed with container or the constant temp cooling water bath of mixture of ice and water.
4. device as claimed in claim 1, is characterized in that, described vacuum system (3) is vavuum pump.
5. device as claimed in claim 1, is characterized in that, described the first container (11) is glass flask.
6. device as claimed in claim 1, is characterized in that, described second container (221,222) is cold hydrazine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227677.4U CN203841098U (en) | 2014-05-06 | 2014-05-06 | Device for removing volatile organic small molecule compounds from tobacco harm reduction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227677.4U CN203841098U (en) | 2014-05-06 | 2014-05-06 | Device for removing volatile organic small molecule compounds from tobacco harm reduction material |
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| Publication Number | Publication Date |
|---|---|
| CN203841098U true CN203841098U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227677.4U Expired - Lifetime CN203841098U (en) | 2014-05-06 | 2014-05-06 | Device for removing volatile organic small molecule compounds from tobacco harm reduction material |
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| Country | Link |
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| CN (1) | CN203841098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432486A (en) * | 2014-12-06 | 2015-03-25 | 中国农业科学院烟草研究所 | Device and method for manufacturing low-temperature cigarette raw material |
| CN104522877A (en) * | 2014-12-06 | 2015-04-22 | 中国农业科学院烟草研究所 | Method for manufacturing low temperature cigarette raw materials |
| CN112213415A (en) * | 2020-09-02 | 2021-01-12 | 广西大学 | Device and method for extracting and enriching volatile components from sample |
-
2014
- 2014-05-06 CN CN201420227677.4U patent/CN203841098U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432486A (en) * | 2014-12-06 | 2015-03-25 | 中国农业科学院烟草研究所 | Device and method for manufacturing low-temperature cigarette raw material |
| CN104522877A (en) * | 2014-12-06 | 2015-04-22 | 中国农业科学院烟草研究所 | Method for manufacturing low temperature cigarette raw materials |
| CN104432486B (en) * | 2014-12-06 | 2016-11-02 | 中国农业科学院烟草研究所 | A kind of method making low temperature cigarette raw material |
| CN112213415A (en) * | 2020-09-02 | 2021-01-12 | 广西大学 | Device and method for extracting and enriching volatile components from sample |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |