CN107158745A - A kind of micro-extraction component and super gravity field micro-extraction device and extracting process - Google Patents
A kind of micro-extraction component and super gravity field micro-extraction device and extracting process Download PDFInfo
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- CN107158745A CN107158745A CN201610906019.1A CN201610906019A CN107158745A CN 107158745 A CN107158745 A CN 107158745A CN 201610906019 A CN201610906019 A CN 201610906019A CN 107158745 A CN107158745 A CN 107158745A
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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
- B01D11/0496—Solvent extraction of solutions which are liquid by extraction in microfluidic devices
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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
- B01D11/0476—Moving receptacles, e.g. rotating receptacles
- B01D11/048—Mixing by counter-current streams provoked by centrifugal force, in rotating coils or in other rotating spaces
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Abstract
Micro-extraction component, disk and hydrophily lower wall are constituted in lipophile, and the upper disk center position is provided with microfluidic channel, and bottom surface is plane, and the lower wall centre is provided with charging groove, and micro- shape groove is distributed with from charging groove to lower wall top edge；A kind of super gravity field micro-extraction device, including above-mentioned micro-extraction component, entry mixers, connected body, splicing groove, protective cover, axle sleeve, decelerator, motor and support system, the operation extracted using gravitational field micro-extraction device are as follows：(1) start motor, make the power output shaft of decelerator drive lower wall to rotate；(2) aqueous phase and organic phase for sending into organic phase and aqueous phase after entry mixers, flowing mass transfer by two charging apertures of entry mixers respectively are thrown out of into splicing groove under the action of the centrifugal force, and the discharging opening discharge set from splicing groove；(3) effluent of splicing groove discharging opening is collected, and the effluent is stood into split-phase.
Description
Technical field
The invention belongs to chemical industry abstraction technique field, more particularly to a kind of micro-extraction component, micro-extraction device and extraction side
Method.
Background technology
Extraction is to utilize material solubility or difference of distribution coefficient in the solvent of two kinds immiscible (or slightly soluble), is made
Material in a kind of solvent from another solvent is transferred to.It is used as a kind of important separative element operation, being widely used in
The fields such as, chemical industry, metallurgy, food processing.
At present, solvent extraction is industrially mainly used, by being distributed to an other phase under external forces by one
Middle carry out contact mass transfer, corresponding conventional extraction equipment has extraction tower, mixer-settler (extraction tank) etc..These extractions
Equipment tends not to the microcosmic mass transfer of efficient hardening, and complicated huge, the production power consumption of extraction equipment is big, inefficiency,
Through strengthening the bottleneck that need to be broken through as extraction process.
With the development of abstraction technique, the micro-extraction technique of reinforcing mass transfer is occurred in that in recent years, and the micro-extraction technique is
Using microscopic heat conduction, the surface area of liquid and the ratio of volume increased dramatically in limited yardstick so that mass transfer distance subtracts
It is small, reduced the time required to mass transfer.The micro-extraction equipment that micro-extraction technique is used is divided into membrane extraction and microchannel two types.
CN201410487172.6 discloses a kind of membrane extraction apparatus and method, and the membrane extraction device includes membrane extraction component and fixation
Compress membrane extraction component at least two pressure strips, membrane extraction component include at least one first drainage piece, at least one second
The runner formation closed cavity of drainage piece and the filter membrane being inserted between two neighboring drainage piece, filter membrane and drainage piece, to allow liquid
Body is flowed wherein, and the liquid pass hole of the first drainage piece is connected with the import or export of adjacent second drainage piece, the second drainage piece
Liquid pass hole is connected with the import or export of adjacent first drainage piece.Such a membrane extraction device is to improve filter membrane both sides by drainage plate
The concentration difference of extract and stoste improves extraction efficiency, but because mass transfer mode only leans on convection current or concurrent flow, thus easily infiltration,
Extraction efficiency increase rate less, and needs multistage drainage plate and filter membrane continuously to use, and structure is complex.Microchannel extraction dress
The microchannel being connected including delivery pump and with delivery pump is put, aqueous phase and organic phase liquid enter under the driving of delivery pump leads in a subtle way
Road, completes extraction in microchannel.Although the micro-extraction device extraction yield of such a structure is high, limited, handled by microchannel
Measure small (treating capacity is generally micro updating), it is difficult to the need for meeting industrialized production in fields such as chemical industry, metallurgy, and belong to passive
Mass transfer is mixed, mass-transfer performance is influenceed.
The content of the invention
It is an object of the invention to overcome the shortcomings of prior art presence, there is provided a kind of micro-extraction component and super gravity field are micro-
Extraction equipment and extracting process, under conditions of high extraction yield is kept increase treating capacity, shorten the split-phase time, with meet chemical industry,
The need for the fields such as metallurgy extraction industrialized production.
Micro-extraction component of the present invention, disk and hydrophily lower wall are constituted in lipophile, and the profile of the upper disk is circle
Platform shape, lower small ladder truncated cone-shaped upper greatly or lower small truncated cone upper greatly, upper disk center position is provided with microfluidic channel, bottom
Face is plane, and the profile of the lower wall is truncated cone-shaped, up big and down small ladder truncated cone-shaped or up big and down small truncated cone, lower wall
End face center position is provided with charging groove, and micro- shape groove is distributed with from charging groove to lower wall top edge；Combination is：On
The microfluidic channel center line that disk is set is overlapped with the charging groove center line that lower wall top surface is set, the bottom surface of upper disk and lower wall
There is 0.05~0.25mm gap between top surface.
Above-mentioned micro-extraction component, micro- shape groove of lower wall top surface has variform, can twist, arc or honeycombed point
Cloth.
Above-mentioned micro-extraction component, the width of micro- shape groove is 0.25~1mm, and depth is 0.25~0.75mm.
Above-mentioned micro-extraction component, the preferred circle hole shape passage of microfluidic channel, the aperture of circle hole shape passage for 0.25~
3mm。
Above-mentioned micro-extraction component, the upper disk is made using hydrophobic material or smears hydrophobically modified dose in the upper face of trying to get to the heart of a matter
Formed, hydrophobic material is polyethylene or polytetrafluoroethylene (PTFE), and their density is 0.940~0.976g/cm3, hydrophobicity repaiies
It is dimethyl silicone polymer or fluorinated silane to adorn agent；The lower wall is made using hydrophilic material or smears hydrophilic in lower wall top surface
Sex modification dosage form is into hydrophilic material is stainless steel, and Hydrophilic modification agent is dimethylformamide or acrylate.
Super gravity field micro-extraction device of the present invention includes above-mentioned micro-extraction component, entry mixers, connected body, splicing
Groove, protective cover, axle sleeve, decelerator, motor and support system；The support system by base, the column being fixed on base and
The first loading plate and the second loading plate composition on column, the connected body are arranged on the second loading plate bottom surface, connection
The centre of body is provided with jack, and the entry mixers are provided with two charging apertures and a discharging opening, entry mixers
The section of discharging opening is set to pass through the through-hole mounting on the second loading plate in the jack that connected body centre is set, it is described to connect
Hopper, which is arranged in the first carrying plate top surface, splicing groove, is provided with discharging opening, and the protective cover is arranged on the first carrying plate top surface
And in the splicing groove, the decelerator is arranged on the first loading plate bottom surface, and decelerator power output shaft axis with being connected
The center line of body is overlapped, and the power output shaft of decelerator passes through the through hole set on the first loading plate to enter protective cover, the electricity
Machine is arranged on the first loading plate bottom surface by support or supported by column, and the power output shaft of motor and the power of decelerator are inputted
Axle is connected, and the axle sleeve is fixed on the lower wall bottom surface in micro-extraction component, and the center line of axle sleeve is overlapped with the neutral conductor of lower wall,
Lower wall in micro-extraction component is connected and is located in splicing groove by the power output shaft of axle sleeve and decelerator, in extraction module
Upper disk is connected with connected body, should be made during connection in the center line of microfluidic channel and the jack of connected body setting that disk is set
Heart line is overlapped, and meets the combination of disk and lower wall, i.e., the microfluidic channel center line that upper disk is set is set with lower wall top surface
The charging groove center line put is overlapped, the gap between the bottom surface of upper disk and the top surface of lower wall with 0.05~0.25mm.
Above-mentioned super gravity field micro-extraction device, the entry mixers are combined into for the pipe that internal diameter is 0.25~3mm
Three-way pipe, it is 30 °~330 ° to have the angle α between two feed pipes and a discharge nozzle, the center line of two feed pipes；It is described
The inlet mounting hole that connected body centre is set is manhole, the aperture of the manhole and the discharge nozzle of material blender
External diameter is matched.
Above-mentioned super gravity field micro-extraction device, the axle sleeve is connected with the connected mode of reducer power output shaft for key,
And the spring that upper gap between disk and lower wall is adjusted in extraction process is configured with axle sleeve, spring housing is exported mounted in reducer power
On axle, the step that its lower end is set by sleeve lining is supported, and its upper end is contacted with the bottom surface of lower wall.
The operation extracted using gravitational field micro-extraction device of the present invention is as follows：
(1) start motor, make the power output shaft of decelerator drive lower wall to rotate；
(2) organic phase and aqueous phase are sent into entry mixers, organic phase by two charging apertures of entry mixers respectively
The microfluidic channel set successively through entry mixers discharging opening, upper disk center position with aqueous phase enters above try to get to the heart of a matter face and lower wall top
Interval section between face, organic phase is attached in lipophile face of trying to get to the heart of a matter, and aqueous phase is attached to hydrophily lower wall top surface, and they are under
Contact surface area is constantly updated under the centrifugal action that disc spins are produced and carries out the aqueous phase after flowing mass transfer, flowing mass transfer and organic
Mutually it is thrown out of under the action of the centrifugal force into splicing groove, and the discharging opening discharge set from splicing groove；
(3) effluent of splicing groove discharging opening is collected, and the effluent is stood into split-phase.
The invention has the advantages that：
1st, using super gravity field micro-extraction device of the present invention and extracting process, due to organic phase and aqueous phase entrance extraction
The interval section between face and hydrophily lower wall top surface of being tried to get to the heart of a matter in the lipophile of component is simultaneously respectively attached in lipophile face of trying to get to the heart of a matter
With hydrophily lower wall top surface, contact surface area progress flowing mass transfer is constantly updated under the centrifugal action that lower disc spins are produced,
Thus extraction yield is high, and extraction yield can reach balance substantially after being extracted through one-level, and experiment shows, phosphoric acid by wet process is extracted, extraction
Take rate to be higher than the extraction yield of traditional liquid-liquid extraction (see embodiment 3 and comparative example).
2nd, using super gravity field micro-extraction device of the present invention and extracting process, because organic phase and aqueous phase are spiraled under
It is located above to try to get to the heart of a matter in the state of turning and flowing mass transfer is carried out between face and lower wall top surface, increases the contact area of two-phase, accelerate
Two-phase contact flow speed, shortens extraction time, thus increases treating capacity, and experiment shows, phosphoric acid by wet process is extracted,
Treating capacity is up to 60m3·h-1·m-2, reached commercial production level standard.
3rd, using super gravity field micro-extraction device of the present invention and extracting process, because organic phase and aqueous phase are adhered to respectively
Tried to get to the heart of a matter in lipophile face and hydrophily lower wall top surface, flowing mass transfer is carried out under the centrifugal action that lower disc spins are produced, because
And two-phase will not be caused to emulsify in extraction process.
4th, using super gravity field micro-extraction device of the present invention and extracting process, aqueous phase and organic phase after flowing mass transfer
The split-phase time is short, and experiment shows, when being extracted to phosphoric acid by wet process, the effluent collected by splicing groove discharging opening, after standing
Can split-phase immediately.
5th, because the hydrophily lower wall top surface of extraction module of the present invention is provided with micro- shape groove, thus lower wall top can be increased
The surface area in face, is conducive to improving treating capacity.
6th, due to the connected mode of super gravity field micro-extraction device bottom bracket axle of the present invention and reducer power output shaft
Connected for key, and the spring that upper gap between disk and lower wall is adjusted in extraction process is configured with axle sleeve, thus be conducive to extraction
Be normally carried out.
7th, super gravity field micro-extraction device of the present invention is simple in construction, and extraction module is readily disassembled cleaning, does not result in
Block, and it is easy to operate during extraction, thus easy to spread use.
Brief description of the drawings
Fig. 1 is a kind of structural representation of micro-extraction component of the present invention；
Fig. 2 is a kind of schematic diagram of disk in lipophile in micro-extraction component；
Fig. 3 is a kind of schematic diagram of hydrophily lower wall in micro-extraction component；
Fig. 4 is the first the form schematic diagram for the micro-groove that hydrophily lower wall top surface is set, and micro-groove is twist distributed；
Fig. 5 is second of form schematic diagram of the micro-groove that hydrophily lower wall top surface is set, the curved distribution of micro-groove；
Fig. 6 is the third form schematic diagram for the micro-groove that hydrophily lower wall top surface is set, and micro-groove is distributed in honeycombed；
Fig. 7 is a kind of structural representation of super gravity field micro-extraction device of the present invention；
Fig. 8 is Fig. 7 top view；
Fig. 9 is the first schematic diagram of entry mixers in super gravity field micro-extraction device of the present invention；
Figure 10 is second of schematic diagram of entry mixers in super gravity field micro-extraction device of the present invention；
Figure 11 is the third schematic diagram of entry mixers in super gravity field micro-extraction device of the present invention；
Figure 12 is the schematic diagram of connected body in super gravity field micro-extraction device of the present invention；
Figure 13 is hydrophily lower wall, axle sleeve, reducer power output shaft in super gravity field micro-extraction device of the present invention
With the combination diagram of spring.
In figure, 1-go up disk, the screws of 1-1-first, 1-2-microfluidic channel, 2-lower wall, 2-1-charging groove, 2-
Slow down 2-micro- shape groove, 3-splicing groove discharging opening, 4-reducer power output shaft, 5-base, 6-column, 7-motor, 8-
Device, the 9-the first loading plate, 10-protective cover, 11-splicing groove, 12-axle sleeve, the 13-the second loading plate, 14-charging mixing
Device, 15-connected body, 15-1-jack, the screws of 15-2-second, 15-3-external thread section, 16-flat key, 17-spring.
Embodiment
Below by embodiment and with reference to accompanying drawing to micro-extraction component of the present invention, super gravity field micro-extraction device and extraction
Method is taken to be described further.
Embodiment 1
In the present embodiment, micro-extraction component as shown in Figure 1, Figure 2, Figure 3 shows, 2 groups of disk 1 and hydrophily lower wall in lipophile
Into；The upper disk 1 is 0.950g/cm with density3Polyethylene make, its profile be truncated cone-shaped, a diameter of 90mm of round platform, on
The bottom surface of disk is plane, and centre is disposed with the first screw 1-1 and microfluidic channel 1-2 from top to bottom, and microfluid leads to
Road 1-2 is circle hole shape passage, and its aperture is 1mm, and the first screw 1-1 is used to install fixation；The lower wall 2 makes of stainless steel,
Its profile is up big and down small ladder truncated cone-shaped, and positioned at a diameter of 100mm of the round platform of topmost, lower wall end face center position is set
Charging groove 2-1 is equipped with, the micro- shape groove 2-2 of spiral shape is distributed with from charging groove to lower wall top edge, as shown in figure 4, spiral
The width of the micro- shape groove of shape is 0.5mm, and depth is 0.25mm；The combination of upper disk and lower wall is：The microfluid that upper disk is set leads to
Road 1-2 center lines are overlapped with the charging groove 2-1 center lines that lower wall top surface is set, between the bottom surface of upper disk 1 and the top surface of lower wall
Gap with 0.07mm.
Embodiment 2
In the present embodiment, super gravity field micro-extraction device as shown in Figure 8, Figure 9, including micro-extraction component described in embodiment 1,
Entry mixers 14, connected body 15, splicing groove 11, protective cover 10, axle sleeve 12, decelerator 8, motor 7, flat key 16 and support system
System；The support system is by truncated cone-shaped base 5, to be uniformly distributed and be fixed on four cross sections on base be circular column 6
And circular first loading plate 9 and circular second loading plate 13 being mutually arranged on across a certain distance on column are constituted；The charging is mixed
Clutch is the three-way pipe that internal diameter 0.8mm, external diameter 1mm pipe are combined into as shown in Figure 10, there is two feed pipes and a discharging
Angle α between pipe, the center line of two feed pipes is 120 °；The connected body 15 is up big and down small rank as shown in figure 13
Terraced round estrade, centre is provided with jack 15-1, and top surface is provided with the second screw 15-2, and lower section is external thread section 15-3,
The jack 15-1 is manhole, and the aperture of the manhole is matched with the discharge nozzle external diameter of entry mixers, the outer spiral shell
Line section 15-3 is matched with the first screw 1-1 that upper disk is set in embodiment 1；As shown in figure 13, endoporus is ladder to the axle sleeve 12
Hole, the wherein aperture of macropore section are matched with the external diameter of spring 17, and the aperture of aperture section is outer with reducer power output shaft 4
Footpath is matched, and is provided with flat key groove；The decelerator 8 be gear reduction unit, gear reduction unit should meet motor drive under its
The rotating speed of power output shaft is 250rad/min.The combination of above-mentioned component or part：The connected body 15 is arranged on second
The bottom surface of loading plate 13, is threadedly coupled with the second loading plate, and the discharge nozzle of the entry mixers 14 is passed through on the second loading plate
In the jack 15-1 that through-hole mounting is set in connected body centre, the splicing groove 11 is arranged on the top surface of the first loading plate 9, connects
Hopper side is provided with discharging opening 3, and the protective cover 10 is arranged on the first carrying plate top surface and in splicing groove 11, described to subtract
Fast device 8 is arranged on the first loading plate bottom surface, and the power output shaft axis of decelerator is overlapped with the center line of connector 15, slows down
The power output shaft 4 of device passes through the through hole set on the first loading plate to enter protective cover 10, and the motor 7 is arranged on by support
First loading plate bottom surface, the power output shaft of motor 7 and the power input shaft of decelerator are connected, and the axle sleeve 12 is located at micro-extraction
The bottom surface of lower wall 2 in component, is integrated with lower wall, and the center line of axle sleeve 12 is overlapped with the neutral conductor of lower wall 2, micro- extraction
The lower wall 2 in component is taken to be connected by axle sleeve 12 with the power output shaft 4 of decelerator and in splicing groove 11, the axle sleeve 12
It is connected with the connected mode of reducer power output shaft 4 for key in (by flat key 16), axle sleeve and is configured with spring 17, the spring
17 are sleeved on reducer power output shaft 4, and its lower end is supported by the step of sleeve lining, and the bottom surface of its upper end and lower wall connects
Touch, the upper disk 1 in extraction module be connected with connected body, should make during connection disk 1 setting microfluidic channel 1-2 center line and
The center line for the jack 15-1 that connected body is set is overlapped, so as to ensure microfluidic channel 1-2 center lines and lower wall that upper disk 1 is set
The charging groove 2-1 center lines that top surface is set are overlapped, and are made between the bottom surface of disk 1 and the top surface of lower wall between 0.07mm
Gap.
Embodiment 3
This example uses super gravity field micro-extraction device described in embodiment 2 to extract phosphoric acid by wet process, is cleaned phosphoric acid by wet process
Main composition is shown in Table 1.
Table 1 is cleaned the composition of phosphoric acid by wet process
| Component | P2O5 | Fe3+ | SO4 2- | F- |
| Content wt% | 45.41 | 0.57 | 5.06 | 0.13 |
Extractant is by tributyl phosphate (TBP) and kerosene by volume 5:1 is formulated, organic phase (extractant) and aqueous phase
(be cleaned phosphoric acid by wet process) is in a ratio of 4:1.
Operation is as follows：
(1) by tributyl phosphate (TBP) and kerosene by volume 5:1 is formulated extractant and extractant is preheated into 50
℃；
(2) start motor, the power output shaft of decelerator is driven lower wall 2 with 250rad/min rotational speed；
(3) phosphoric acid by wet process is cleaned respectively with 400mL/min, 100mL/ by the extractant after preheating and under normal temperature
Min flow sends into entry mixers by two charging apertures of entry mixers 14, extractant and be cleaned phosphoric acid by wet process according to
Tried to get to the heart of a matter in the secondary microfluidic channel 1-2 entrance set through entry mixers discharging opening, upper disk center position face and lower wall top surface it
Between interval section, extractant is attached in lipophile face of trying to get to the heart of a matter, is cleaned phosphoric acid by wet process and is attached to hydrophily lower wall top surface, it
Constantly update after contact surface area carries out flowing mass transfer, flowing mass transfer and formed under the centrifugal action that lower disc spins are produced
Mixed liquor is thrown out of into splicing groove under the action of the centrifugal force, and the discharging opening discharge set from splicing groove；
(4) extract of splicing groove discharging opening discharge is collected, and the extract is stood into split-phase.
In the present embodiment, the treating capacity of phosphoric acid by wet process is 100mL/min.
Test result indicates that, the extract can split-phase immediately after standing.
Phosphoric acid extraction rate is carried out to the extract of mass transfer formation to determine with calculating (phosphoric acid matter in extraction yield E%=organic phases
Phosphoric acid quality in amount/raw material acid × 100%), result of calculation：The extraction yield of phosphoric acid is 63.72%.
Comparative example
It is same as Example 3 that this comparative example is cleaned phosphoric acid by wet process, and extraction equipment uses existing conventional groove extraction equipment,
Extracting process is conventional extraction paddling process.Technological parameter when extractant and extraction：Extractant is by tributyl phosphate (TBP) and coal
Oil by volume 5:1 is formulated, and organic phase (extractant) is in a ratio of 4 with aqueous phase (being cleaned phosphoric acid by wet process):1, extraction temperature
Spend for 50 DEG C, stirring slurry is 250rad/min in rotating speed, and extraction time is 10min.
To standing split-phase in 50 DEG C of extracts by the formation of 10min mass transfers, the split-phase time is 5min.
Determined to carrying out phosphoric acid extraction rate in 50 DEG C of extracts by the formation of 10min mass transfers with calculating (extraction yield E%=
Phosphoric acid quality in phosphoric acid quality/raw material acid in organic phase × 100%), result of calculation：The extraction yield of phosphoric acid is 53.13%.
Embodiment 3 and comparative example show, the extraction yield of super gravity field micro-extraction device and extracting process of the present invention and
The split-phase time is better than current conventional extraction equipment.
The invention is not restricted to above-described embodiment, technique according to the invention scheme can design micro- extraction of a variety of concrete structures
Take component and super gravity field micro-extraction device.
Claims (10)
1. a kind of micro-extraction component, it is characterised in that disk (1) and hydrophily lower wall (2) are constituted in lipophile, the upper disk (1)
Profile be truncated cone-shaped, lower small ladder truncated cone-shaped upper greatly or lower small truncated cone upper greatly, upper disk center position is provided with micro-
Fluid passage (1-2), bottom surface is plane, and the profile of the lower wall (2) is truncated cone-shaped, up big and down small ladder truncated cone-shaped or upper big
Under small truncated cone, lower wall end face center position is provided with charging groove (2-1), from charging groove to lower wall top edge point
It is furnished with micro- shape groove (2-2)；Combination is：Microfluidic channel (1-2) center line and entering that lower wall top surface is set that upper disk is set
Expect the gap that groove (2-1) center line is overlapped, and has 0.05~0.25mm between the bottom surface of upper disk (1) and the top surface of lower wall.
2. micro-extraction component according to claim 1, it is characterised in that micro- shape groove (2-2) of the lower wall top surface is helically
Shape, arc or honeycombed distribution.
3. micro-extraction component according to claim 1 or claim 2, it is characterised in that the width of micro- shape groove (2-2) is 0.25~
1mm, depth is 0.25~0.75mm.
4. micro-extraction component according to claim 1 or claim 2, it is characterised in that the microfluidic channel (1-2) is logical for circle hole shape
Road, the aperture of circle hole shape passage is 0.25~3mm.
5. micro-extraction component according to claim 1 or claim 2, it is characterised in that disk (1) uses hydrophobicity material in the lipophile
Material make or smeared in upper face of trying to get to the heart of a matter hydrophobically modified dosage form made into, the hydrophily lower wall (2) using hydrophilic material or
Lower wall top surface smear Hydrophilic modification dosage form into.
6. micro-extraction component according to claim 5, its special type is that the hydrophobic material is polyethylene or polytetrafluoroethyl-ne
Alkene, their density is 0.940~0.976g/cm3, hydrophobically modified dose is dimethyl silicone polymer or fluorinated silane；Institute
Hydrophilic material is stated for stainless steel, Hydrophilic modification agent is dimethylformamide or acrylate.
7. a kind of super gravity field micro-extraction device, it is characterised in that including micro- extraction described in any claim in claim 1 to 6
Take component, entry mixers (14), connected body (15), splicing groove (11), protective cover (10), axle sleeve (12), decelerator (8), electricity
Machine (7) and support system；The support system by base (5), the column (6) being fixed on base and on column
One loading plate (9) and the second loading plate (13) composition, the connected body (15) are arranged on the second loading plate bottom surface, connected body (15)
Centre be provided with jack (15-1), the entry mixers (14) are provided with two charging apertures and a discharging opening, entered
Material blender sets the jack that the section of discharging opening is set through the through-hole mounting on the second loading plate in connected body centre
In (15-1), the splicing groove (11) is arranged in the first carrying plate top surface, splicing groove and is provided with discharging opening (3), the protection
Cover (10) and be arranged on the first carrying plate top surface and in splicing groove (11), the decelerator (8) is arranged on the first loading plate bottom
Face, and the power output shaft axis of decelerator overlaps with the center line of connector (15), the power output shaft (4) of decelerator is passed through
The through hole set on first loading plate enters protective cover, the motor (7) by support be arranged on the first loading plate bottom surface or by
Column is supported, and the power output shaft of motor (7) and the power input shaft of decelerator are connected, and the axle sleeve (12) is fixed on micro-extraction
Lower wall (2) bottom surface in component, and the center line of axle sleeve (12) overlaps with the neutral conductor of lower wall (2), in micro-extraction component under
Disk (2) is connected by axle sleeve (12) with the power output shaft (4) of decelerator and in splicing groove (11), upper in extraction module
Disk (1) is connected with connected body, and when connection the center line of the microfluidic channel (1-2) of disk (1) setting should be set with connected body
The center line of jack (15-1) overlap, and meet the combination of disk (1) and lower wall (2).
8. super gravity field micro-extraction device according to claim 7, it is characterised in that the entry mixers (14) are internal diameter
Be the three-way pipe that 0.25~3mm pipe is combined into, there is two feed pipes and a discharge nozzle, the center lines of two feed pipes it
Between angle (α) be 30 °~330 °；The jack (15-1) that connected body (15) centre is set is manhole, the circle
The aperture of shape through hole is matched with the discharge nozzle external diameter of entry mixers.
9. the super gravity field micro-extraction device according to claim 7 or 8, it is characterised in that the axle sleeve (12) is moved with decelerator
The connected mode of power output shaft (4) connects for key, and it is upper between disk and lower wall that regulation in extraction process is configured with axle sleeve (12)
The spring (17) in gap, spring (17) is sleeved on reducer power output shaft (4), the step that its lower end is set by sleeve lining
Supporting, its upper end is contacted with the bottom surface of lower wall.
10. a kind of micro-extracting method, it is characterised in that super gravity field described in any claim is micro- in usage right requirement 7 to 9
Extraction equipment, is operated as follows：
(1) start motor, make the power output shaft of decelerator drive lower wall (2) to rotate；
(2) organic phase and aqueous phase are sent into entry mixers, organic phase by two charging apertures of entry mixers (14) respectively
With aqueous phase successively through entry mixers discharging opening, upper disk center position set microfluidic channel (1-2) entrances on try to get to the heart of a matter face with
Interval section between lower wall top surface, organic phase is attached in lipophile face of trying to get to the heart of a matter, and aqueous phase is attached to hydrophily lower wall top surface, it
Lower disc spins produce centrifugal action under constantly update contact surface area carry out flowing mass transfer, flowing mass transfer after aqueous phase
It is thrown out of under the action of the centrifugal force into splicing groove with organic phase, and the discharging opening discharge set from splicing groove；
(3) effluent of splicing groove discharging opening is collected, and the effluent is stood into split-phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109589643A (en) * | 2018-12-21 | 2019-04-09 | 四川大学 | A kind of scraped film type rotates microchannel enhanced extraction equipment and its application |
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| CN107158745B (en) | 2019-11-12 |
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