CN112316488A - Extraction equipment for chemical reagent production - Google Patents
Extraction equipment for chemical reagent production Download PDFInfo
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- CN112316488A CN112316488A CN202011264412.8A CN202011264412A CN112316488A CN 112316488 A CN112316488 A CN 112316488A CN 202011264412 A CN202011264412 A CN 202011264412A CN 112316488 A CN112316488 A CN 112316488A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
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Abstract
The invention discloses extraction equipment for chemical reagent production, which comprises an extraction tank, a tank cover, a stirring device, a communication base, a solvent tank, a liquid outlet and a communication device, wherein the solvent tank is internally provided with a pressurizing device for pressurizing and conveying a solvent stored in the solvent tank, so that the solvent in the solvent tank is discharged into the extraction tank through the communication device. The invention has the following beneficial effects: carry the solvent pressurization in with the solvent jar to the extraction jar in through pressure device, improved the conveying efficiency of solvent, can control the conveying capacity of solvent in addition, through agitating unit, improved in the extraction jar, the degree of mixing of solvent and chemical reagent improves extraction efficiency, sets up the circular telegram of electrical heating element and produces heat, and then makes chemical reagent and solvent extract under the condition that has the uniform temperature, promotes extraction efficiency.
Description
Technical Field
The invention relates to the field of chemical reagent extraction equipment, in particular to extraction equipment for chemical reagent production.
Background
Chemical reagents are relatively standard substances for chemical research and component analysis, are important conditions for technological progress, are widely used for synthesis, separation, qualitative and quantitative analysis of substances, can be said to be eyes of chemists, and are not separated from chemical reagents in daily work of factories, schools, hospitals and research institutes.
Extraction, also known as solvent extraction or liquid-liquid extraction, also known as extraction, is a unit operation that separates mixtures by utilizing the different solubilities of components in the system in a solvent. That is, the method is a method of transferring a solute substance from one solvent to another solvent by utilizing the difference in solubility or partition coefficient of the substance in two solvents which are not soluble (or slightly soluble) with each other. The method is widely applied to chemical, metallurgical, food and other industries and is generally applied to petroleum refining industry. The operation of separating the two immiscible liquids after extraction is called liquid separation. Solid-liquid extraction, also known as leaching, uses a solvent to separate the components of a solid mixture, such as water to extract sugars from sugar beets; extracting soybean oil from soybeans with alcohol to increase oil yield; the leaching of effective components from Chinese medicinal materials with water to obtain fluid extract is called "percolation" or "leaching". Although extraction is often used in chemical experiments, its operation does not cause a change (or chemical reaction) in the chemical composition of the extracted substance, so the extraction operation is a physical process. Extraction is one of the means used in organic chemistry laboratories to purify and purify compounds. The desired substance can be extracted from the solid or liquid mixture by extraction.
In the prior art, chemical reagents are usually extracted by solvents, and the efficiency of the existing extraction equipment is low when extraction operation is carried out, so that the extraction quality of the chemical reagents is influenced.
To solve the above problems, we therefore propose an extraction plant for the production of chemical reagents.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide extraction equipment for producing chemical reagents, and in order to solve the technical problem, the invention provides the following technical scheme:
the invention provides extraction equipment for chemical reagent production, which comprises an extraction tank, wherein the bottom of the extraction tank is provided with a plurality of support legs and is used for storing chemical reagents, the top of the extraction tank is open and is provided with a tank cover, the tank cover is provided with a stirring device used for stirring the chemical reagents stored in the extraction tank, the outer wall of the extraction tank is provided with a communicating seat communicated with the interior of the extraction tank, one end of the communicating seat, which is not connected with the extraction tank, is provided with a solvent tank used for storing a solvent, the outer wall of the solvent tank is provided with a liquid discharge port communicated with the interior of the solvent tank, the communicating seat is internally provided with a communicating device used for communicating the liquid discharge port with the extraction tank, and the solvent tank is internally provided with a pressurizing device used for pressurizing and conveying the solvent stored in the solvent tank, so that the solvent in the solvent tank.
As a further optimization of the above technical solution, a partition plate made of a heat conductive material is arranged in the extraction tank, an installation space is enclosed between the partition plate and the inner bottom wall of the extraction tank, and an electric heating element for heating the partition plate is installed in the installation space.
As a further optimization of the technical scheme, a heat-insulating packing layer which is formed by rotating around the axial direction of the extraction tank and is in a cavity form is arranged in the extraction tank, and the heat-insulating packing layer is used for insulating heat generated by the electric heating element.
As a further optimization of the technical scheme, a sealing ring is arranged at the top of the extraction tank, and the tank cover is sealed with the opening of the extraction tank through the sealing ring.
As above technical scheme's further optimization, agitating unit is including articulated the mount pad of installing on the cover, and is corresponding, set up on the cover and supply the mount pad to rotate the clearance groove that freely passes through, the cover is worn out and agitator motor is installed to the mount pad upper end, coaxial wearing to be equipped with on the mount pad and rotate the (mixing) shaft of connecting above that, the (mixing) shaft lower extreme extends to in the extraction jar, and its upper end with agitator motor drive is connected, the (mixing) shaft extends to the one end cover in the extraction jar and is equipped with spiral stirring rake, the mount pad is rotated along the articulated department with the cover by drive assembly drive its edge, and then makes spiral stirring rake is at the back and forth swing in the extraction jar.
As above technical scheme's further optimization, drive assembly is including the fixed free bearing who locates the cover top surface, the articulated movable free bearing that installs on the fixed free bearing, install electric push rod on the movable free bearing, the last drive of electric push rod is connected with the movable block, the movable block is articulated with the one end that the cover was worn out to the mount pad, electric push rod drive movable block removes, and then the drive the mount pad is followed and is rotated with the articulated department of cover.
As above technical scheme's further optimization, pressure device is including installing the gear motor at solvent tank bottom, the last drive of gear motor is connected with ball screw, ball screw extend to in the solvent tank, and with the solvent tank rotates and is connected, and it is located screw thread cover is equipped with screw-nut on the position in the solvent tank, screw-nut is last to have cup jointed floating seat, the cover is equipped with the pressurization piston on the floating seat, the coaxial sliding fit block of pressurization piston is in the solvent tank, just when gear motor drive ball screw rotated, and then the drive the pressurization piston reciprocates in the solvent tank, will store in the solvent extrusion in the solvent tank is to the intercommunication seat in.
As a further optimization of the above technical solution, an annular rubber ring is sleeved on the pressurizing piston.
As a further optimization of the above technical solution, the communicating device includes a piston coaxially slidably engaged and engaged in the communicating seat, the end surface of the piston abuts against the outer wall of the solvent tank, and the end surface of the piston is provided with a plurality of first liquid inlet grooves staggered with the liquid discharge port along the axial direction thereof, an end opening of the communicating seat away from the solvent tank is coaxially connected with a fixed plug, the fixed plug is provided with a second liquid inlet groove in a through hole form, an elastic member is arranged between the fixed plug and the piston, the elastic member abuts against the piston and drives the piston to move towards one side away from the fixed plug, so that the end surface of the piston abuts against the outer wall of the solvent tank, and the abutting surface has a liquid-tight state.
As a further optimization of the above technical solution, the elastic member is a compression spring horizontally installed in the communication seat, and two ends of the compression spring in the elastic direction respectively abut against the piston and the fixed plug.
Compared with the prior art, the invention has the following beneficial effects: the solvent in the solvent tank is pressurized and conveyed into the extraction tank through the pressurizing device, the conveying efficiency of the solvent is improved, in addition, the conveying quantity of the solvent can be controlled, the mixing degree of the solvent and a chemical reagent in the extraction tank is improved through the stirring device, the extraction efficiency is improved, the electric heating element is arranged to be electrified to generate heat, the chemical reagent and the solvent are extracted under the condition of certain temperature, the extraction efficiency is improved, the stirring device is arranged, the mounting seat is driven to swing through the driving assembly, the spiral stirring paddle swings back and forth in the extraction tank, the stirring blind area of the spiral stirring paddle is reduced, the stirring efficiency is improved, the extraction efficiency is further improved, the communicating device is arranged, the solvent generates extrusion acting force on the piston when being extruded by the pressurizing piston, the piston is far away from the solvent tank, and therefore the solvent can be conveyed to the liquid discharge port, The first liquid inlet groove and the second liquid inlet groove are discharged into the extraction tank, so that the problem that the extraction precision is influenced because the solvent is excessively discharged into the extraction tank is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the general assembly of an extraction plant for chemical reagent production according to the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
in the figure: 1-electric heating element, 2-clapboard, 3-extraction tank, 4-heat preservation filler layer, 5-sealing ring, 6-tank cover, 7-mounting seat, 8-stirring motor, 9-movable block, 10-electric push rod, 11-movable hinge seat, 12-fixed hinge seat, 13-communicating seat, 14-clearance groove, 15-stirring shaft, 16-spiral stirring paddle, 17-reinforcing rib, 18-floating seat, 19-ball screw, 20-screw nut, 21-pressurizing piston, 22-annular rubber ring, 23-air vent, 24-speed reducing motor, 25-solvent tank, 26-liquid discharge port, 27-piston, 28-compression spring, 29-fixed plug, 30-second liquid inlet groove and 31-first liquid inlet groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-2, an extraction apparatus for chemical reagent production includes an extraction tank 3 having a plurality of legs at the bottom and used for storing chemical reagents, a tank cover 6 is installed on the top of the extraction tank 3, a stirring device for stirring the chemical reagents stored in the extraction tank 3 is installed on the tank cover 6, a communication base 13 communicated with the interior of the extraction tank 3 is installed on the outer wall of the extraction tank 3, a solvent tank 25 for storing solvent is installed on one end of the communication base 13 not connected with the extraction tank 3, a liquid discharge port 26 communicated with the interior of the solvent tank 25 is installed on the outer wall of the solvent tank 25, a communication device for communicating the liquid discharge port 26 with the extraction tank 3 is installed in the communication base 13, a pressurizing device for pressurizing and conveying the solvent stored in the solvent tank 25 is installed in the solvent tank 25, so that the solvent in the solvent tank 25 is discharged into the extraction tank 3 by the communication device, the extraction tank 3 is provided with a reinforcing rib 17 extending to the solvent tank 25.
In this embodiment, preferably, a partition plate 2 made of a heat conducting material is disposed in the extraction tank 3, an installation space is defined between the partition plate 2 and the bottom wall of the extraction tank 3, and an electric heating element 1 for heating the partition plate 2 is installed in the installation space.
In this embodiment, preferably, a heat-insulating filler layer 4 in the form of a cavity formed by rotating around the axial direction is arranged in the extraction tank 3, and the heat-insulating filler layer 4 is used for insulating heat generated by the electric heating element 1.
In the present embodiment, preferably, a sealing ring 5 is provided on the top of the extraction tank 3, and the tank cover 6 is sealed with the mouth of the extraction tank 3 by the sealing ring 5.
In this embodiment, as preferred, agitating unit is including articulated mount pad 7 of installing on cover 6, and is corresponding, offer on the cover 6 and supply mount pad 7 to rotate the clearance groove 14 that freely passes through, cover 6 is worn out and agitator motor 8 is installed to mount pad 7 upper end, coaxial wear to be equipped with the (mixing) shaft 15 of rotation connection above that on the mount pad 7, in (mixing) shaft 15 lower extreme extends to extraction jar 3, and its upper end with agitator motor 8 drive is connected, the one end cover that (mixing) shaft 15 extends to in the extraction jar 3 is equipped with spiral stirring rake 16, mount pad 7 is rotated along the articulated department with cover 6 by drive assembly drive its, and then makes spiral stirring rake 16 is the swing back and forth in extraction jar 3.
In this embodiment, as preferred, the driving assembly includes the fixed free bearing 12 that locates the top surface of cover 6, articulated movable free bearing 11 of installing on the fixed free bearing 12, install electric putter 10 on the movable free bearing 11, the last drive of electric putter 10 is connected with movable block 9, movable block 9 wears out the one end on the cover 6 with mount pad 7 and articulates, electric putter 10 drive movable block 9 removes, and then the drive mount pad 7 is followed and is rotated with the articulated department of cover 6.
In this embodiment, preferably, the pressurizing device includes a speed-reducing motor 24 installed at the bottom of the solvent tank 25, the speed-reducing motor 24 is connected with a ball screw 19 in a driving manner, the ball screw 19 extends into the solvent tank 25 and is rotatably connected with the solvent tank 25, a screw nut 20 is screwed on a portion of the speed-reducing motor in the solvent tank 25, a floating seat 18 is sleeved on the screw nut 20, a pressurizing piston 21 is sleeved on the floating seat 18, the pressurizing piston 21 is coaxially and slidably engaged with the solvent tank 25, and when the speed-reducing motor 24 drives the ball screw 19 to rotate, the pressurizing piston 21 is further driven to move up and down in the solvent tank 25, the solvent stored in the solvent tank 25 is extruded into the communicating seat 13, the bottom of the solvent tank 25 is provided with an air hole 23 communicated with the inside of the solvent tank 25, and the air hole 23 is provided so that the pressurizing piston 21 slides in the solvent tank 25, the air compression phenomenon can not be generated.
In the present embodiment, it is preferable that the pressurizing piston 21 is fitted with an annular rubber ring 22.
In this embodiment, the communication means preferably includes a piston 27 coaxially engaged in the communication seat 13 in a sliding manner, an end surface of the piston 27 abuts against an outer wall of the solvent tank 25, and a plurality of first liquid inlet grooves 31 which are staggered with the liquid outlet 26 are arranged on the end surface of the liquid inlet pipe along the axial direction, a fixed plug 29 is coaxially connected with an end opening part of the communicating seat 13 far away from the solvent tank 25, a second liquid inlet groove 30 in a through hole form is arranged on the fixed plug 29, between said fixed plug 29 and the piston 27 there is a compression spring 28 mounted horizontally in the communication seat 13, the two ends of the compression spring 28 in the elastic direction respectively abut against the piston 27 and the fixed plug 29, the compression spring 28 abuts against the piston 27 and drives the piston 27 to move towards the side far away from the fixed plug 29, the end face of the piston 27 is abutted against the outer wall of the solvent tank 25, and the abutting face is in a liquid sealing state.
The working principle of the invention is as follows: gear motor 24 starts, drive ball screw 19 rotates, and then make lead screw nut 20 drive floating seat 18 and move up, extrude the solvent in the solvent jar 25 and carry to leakage fluid dram 26, the solvent produces the motive force to piston 27, and then drive piston 27 and slide towards the direction of keeping away from solvent jar 25, and make the solvent by leakage fluid dram 26, first feed liquor groove 31 on the piston 27, second feed liquor groove 30 on the fixed stopper 29 flows into in extraction jar 3, and mix with the chemical reagent, restart agitator motor 8, agitator motor 8 rotates, drive spiral stirring is 16 rotations, electric putter 10 drives movable block 9 and removes simultaneously, make mount pad 7 swing, thereby make spiral stirring rake swing, promote the mixed degree to the chemical reagent in the extraction jar 3 and solvent, and then realize high-efficient extraction.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an extraction equipment for chemical reagent production, its characterized in that, including bottom be equipped with a plurality of landing legs, and be used for storing extraction jar (3) of chemical reagent, extraction jar (3) top is uncovered and install cover (6), be equipped with the agitating unit that is used for stirring the chemical reagent of extraction jar (3) internal storage on cover (6), be equipped with on extraction jar (3) outer wall rather than inside through connection's intercommunication seat (13), the solvent jar (25) that are used for storing solvent are installed to the one end that intercommunication seat (13) are not connected extraction jar (3), set up on solvent jar (25) outer wall rather than inside intercommunication leakage fluid dram (26), be equipped with in intercommunication seat (13) and be used for making leakage fluid dram (26) and the intercommunication device of extraction jar (3) intercommunication, be equipped with in solvent jar (25) and be used for carrying the pressure device that pressurizes the solvent of its internal storage and carry, and discharging the solvent in the solvent tank (25) into the extraction tank (3) through a communication device.
2. The extraction apparatus for chemical reagent production according to claim 1, wherein a partition (2) made of a heat conductive material is provided in the extraction tank (3), and an installation space is defined between the partition (2) and the inner bottom wall of the extraction tank (3), and an electric heating element (1) for heating the partition (2) is installed in the installation space.
3. The extraction apparatus for chemical reagent production according to claim 2, wherein the extraction tank (3) is provided with a heat-insulating packing layer (4) in the form of a cavity which is formed by rotating around the axial direction thereof, and the heat-insulating packing layer (4) is used for insulating heat generated by the electric heating element (1).
4. The extraction equipment for chemical reagent production as claimed in claim 1, wherein the top of the extraction tank (3) is provided with a sealing ring (5), and the tank cover (6) is sealed with the opening of the extraction tank (3) through the sealing ring (5).
5. The extraction plant for chemical reagent production according to claim 1, the stirring device comprises a mounting seat (7) hinged on the tank cover (6), correspondingly, the tank cover (6) is provided with a clearance groove (14) for the mounting base (7) to freely pass through in a rotating way, the upper end of the mounting seat (7) penetrates through the tank cover (6) and is provided with a stirring motor (8), a stirring shaft (15) rotatably connected to the mounting seat (7) is coaxially arranged on the mounting seat in a penetrating manner, the lower end of the stirring shaft (15) extends into the extraction tank (3), the upper end of the stirring shaft (15) is in driving connection with the stirring motor (8), one end of the stirring shaft extending into the extraction tank (3) is sleeved with a spiral stirring paddle (16), the mounting seat (7) is driven by a driving component to rotate along the hinge joint with the tank cover (6), thereby enabling the spiral stirring paddle (16) to swing back and forth in the extraction tank (3).
6. The extraction equipment for producing the chemical reagent is characterized in that the driving assembly comprises a fixed hinged support (12) arranged on the top surface of the tank cover (6), a movable hinged support (11) is hinged on the fixed hinged support (12), an electric push rod (10) is mounted on the movable hinged support (11), a movable block (9) is connected on the electric push rod (10) in a driving mode, the movable block (9) is hinged to one end, penetrating out of the tank cover (6), of the mounting seat (7), the electric push rod (10) drives the movable block (9) to move, and then the mounting seat (7) is driven to rotate along the hinged position of the tank cover (6).
7. The extraction equipment for producing the chemical reagent as claimed in claim 1, wherein the pressurizing device comprises a speed reducing motor (24) installed at the bottom of the solvent tank (25), the speed reducing motor (24) is connected with a ball screw (19) in a driving manner, the ball screw (19) extends into the solvent tank (25) and is rotatably connected with the solvent tank (25), a screw nut (20) is sleeved on a position of the ball screw (19) in the solvent tank (25) in a threaded manner, a floating seat (18) is sleeved on the screw nut (20), a pressurizing piston (21) is sleeved on the floating seat (18), the pressurizing piston (21) is coaxially and slidably clamped in the solvent tank (25), and when the speed reducing motor (24) drives the ball screw (19) to rotate, the pressurizing piston (21) is further driven to move up and down in the solvent tank (25), the solvent stored in the solvent tank (25) is pressed into the communicating seat (13).
8. Extraction plant for the production of chemical reagents according to claim 7, characterised in that said pressurizing piston (21) is sheathed with an annular rubber ring (22).
9. The extraction equipment for producing the chemical reagent as claimed in claim 1, wherein the communication device comprises a piston (27) which is coaxially and slidably engaged and clamped in the communication seat (13), the end surface of the piston (27) abuts against the outer wall of the solvent tank (25), the end surface of the piston is provided with a plurality of first liquid inlet grooves (31) which are staggered with the liquid outlet (26) along the axial array, one end opening part of the communication seat (13) far away from the solvent tank (25) is coaxially connected with a fixed plug (29), the fixed plug (29) is provided with a second liquid inlet groove (30) in the form of a through hole, an elastic member is arranged between the fixed plug (29) and the piston (27), the elastic member abuts against the piston (27) and drives the piston (27) to move towards one side far away from the fixed plug (29), and the end surface of the piston (27) abuts against the outer wall of the solvent tank (25), and the abutting surfaces have a liquid sealing state.
10. The extraction apparatus for chemical reagent production according to claim 9, wherein the elastic member is a compression spring (28) horizontally installed in the communication seat (13), and both ends of the compression spring (28) in the elastic direction respectively abut against the piston (27) and the fixed plug (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011264412.8A CN112316488A (en) | 2020-11-12 | 2020-11-12 | Extraction equipment for chemical reagent production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011264412.8A CN112316488A (en) | 2020-11-12 | 2020-11-12 | Extraction equipment for chemical reagent production |
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| CN112316488A true CN112316488A (en) | 2021-02-05 |
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| CN202011264412.8A Pending CN112316488A (en) | 2020-11-12 | 2020-11-12 | Extraction equipment for chemical reagent production |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112300899A (en) * | 2020-11-10 | 2021-02-02 | 衡阳市凯信化工试剂股份有限公司 | Fermentation device for processing chemical reagent |
| CN113082765A (en) * | 2021-03-01 | 2021-07-09 | 南京诺奥新材料有限公司 | High-pressure extraction device and application method thereof |
| CN113694563A (en) * | 2021-09-06 | 2021-11-26 | 山东佳星环保科技有限公司 | Centrifugal extraction device |
| CN115253379A (en) * | 2022-08-08 | 2022-11-01 | 严良榕 | Device for accelerating dissolution of solvent and supercritical carbon dioxide fluid |
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| US6203483B1 (en) * | 1999-04-14 | 2001-03-20 | Ut-Battelle, Llc | Method for solvent extraction with near-equal density solutions |
| CN107551921A (en) * | 2017-10-25 | 2018-01-09 | 徐州金港起重机制造有限公司 | A kind of swing type agitating device for material mixing |
| CN210298848U (en) * | 2019-06-19 | 2020-04-14 | 黄姗 | A novel quantification is driped irrigation device for farming |
| CN211302906U (en) * | 2019-06-26 | 2020-08-21 | 庄景勇 | High-efficient mixer is used in construction |
| CN111790180A (en) * | 2020-07-09 | 2020-10-20 | 江西德盛精细化学品有限公司 | Device is refined in extraction of acid fixing agent |
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2020
- 2020-11-12 CN CN202011264412.8A patent/CN112316488A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6203483B1 (en) * | 1999-04-14 | 2001-03-20 | Ut-Battelle, Llc | Method for solvent extraction with near-equal density solutions |
| CN107551921A (en) * | 2017-10-25 | 2018-01-09 | 徐州金港起重机制造有限公司 | A kind of swing type agitating device for material mixing |
| CN210298848U (en) * | 2019-06-19 | 2020-04-14 | 黄姗 | A novel quantification is driped irrigation device for farming |
| CN211302906U (en) * | 2019-06-26 | 2020-08-21 | 庄景勇 | High-efficient mixer is used in construction |
| CN111790180A (en) * | 2020-07-09 | 2020-10-20 | 江西德盛精细化学品有限公司 | Device is refined in extraction of acid fixing agent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112300899A (en) * | 2020-11-10 | 2021-02-02 | 衡阳市凯信化工试剂股份有限公司 | Fermentation device for processing chemical reagent |
| CN113082765A (en) * | 2021-03-01 | 2021-07-09 | 南京诺奥新材料有限公司 | High-pressure extraction device and application method thereof |
| CN113694563A (en) * | 2021-09-06 | 2021-11-26 | 山东佳星环保科技有限公司 | Centrifugal extraction device |
| CN115253379A (en) * | 2022-08-08 | 2022-11-01 | 严良榕 | Device for accelerating dissolution of solvent and supercritical carbon dioxide fluid |
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Application publication date: 20210205 |
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