CN105727590A - Tubular continuous liquid-liquid extraction device and operation method thereof - Google Patents
Tubular continuous liquid-liquid extraction device and operation method thereof Download PDFInfo
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- CN105727590A CN105727590A CN201610193913.9A CN201610193913A CN105727590A CN 105727590 A CN105727590 A CN 105727590A CN 201610193913 A CN201610193913 A CN 201610193913A CN 105727590 A CN105727590 A CN 105727590A
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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
- B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
Abstract
The invention relates to a tubular continuous liquid-liquid extraction device and an operation method thereof. The tubular continuous liquid-liquid extraction device comprises continuous tubular extractors (1) and (4) and continuous extract phase and raffinate separators (2) and (5). The operation method comprises the following steps: mixing and extracting a flowing to-be-separated solution and a flowing extraction agent in the first-level tubular exactor (1); separating the extract phase from the raffinate of the material from the first-level tubular exactor (1) in the first-level extract phase and raffinate separator (2), feeding the extract phase into an extract phase storage tank (3) and mixing and extracting the flowing raffinate and another flowing extraction agent in the second-level tubular exactor (4); and separating the extract phase from the raffinate of the material from the second-level tubular exactor (4) in the second-level extract phase and raffinate separator (5) for the second time, feeding the raffinate into a raffinate storage tank (6) and returning the extract phase to the first-level tubular exactor (1). The tubular continuous liquid-liquid extraction device has the advantages of simple structure, less investment, high operating flexibility, low running cost and high extraction and separation efficiency.
Description
Technical field
The present invention relates to a kind of chemical engineering unit operation equipment and operational approach thereof, particularly relate to liquid-liquid extraction equipment and operational approach.
Background technology
The operation that a certain component in solution to be separated is extracted with another liquid (extractant) claims liquid-liquid extraction, and it is a kind of important chemical engineering unit operation.Due to the multiformity of liquid-liquid extraction process, people have invented diversified extraction equipment for various different occasions.Conventional extraction equipment utilizes churned mechanically mixer-settler or stirred tank, extraction spray column, trayed extraction columns, packed extraction tower, turntable extracting tower, pulsed sieve extraction tower, centrifugal extractor, percussion flow extractor, hypergravity extractor etc..Which kind of structure no matter used extraction equipment adopt, in extracting operation, extractant and solution to be separated to be sufficiently mixed mass transfer and extraction phase most important with separating of raffinate phase.Some devices of aforementioned extraction equipment are huge, and occupation area of equipment is big, and investment is many, and operating cost is high；Some can not long-term operation, maintenance cost is high；Some mass-transfer efficiency are low, it is impossible to meet manufacturing technique requirent very well.
Develop that a kind of simple in construction, equipment investment are low, mixing mass transfer effect is good, consuming little energy, disposal ability and operating flexibility is big, the liquid-liquid extractor of extraction phase and raffinate phase good separating effect, for improving and strengthening mixed liquor extract and separate operates and has good Practical significance.
Summary of the invention
It is an object of the invention to provide a kind of new liquid liquid extraction plant and the operational approach of this device is provided.Liquid-liquid extractor employing two grades or multi-level tubular that the present invention proposes extract mixing and separate with two grades or multitple extraction mixed liquor, its extractant mixes fully with solution to be separated, extraction phase separates with raffinate phase thoroughly, solution separating effect is better than existing extraction separation device, and has high operating flexibility.
It is an object of the invention to be achieved through the following technical solutions:
A kind of continuous liquid-liquid extractor of tubular type and operational approach thereof, the device constituted including following equipment and the operational approach of this device:
A. extraction equipment used includes: one-level tubular type extractor, one-level extraction phase and raffinate phase separator, extraction phase basin, diode formula extractor, two grades of extraction phases are connected pipeline, material-handling pump, control and display instrument and various adnexa (such as effusion meter, thermometer, Pressure gauge, liquidometer, visor, looking cup) with raffinate phase separator, raffinate phase basin, equipment room.One-level tubular type extractor and diode formula extractor be straight tube, curved tube or straight tube and curved tube combination blank pipe or pipe in dynamic and static turbulent element or chemical filler that the medium within it flowed has perturbation action are set；One-level tubular type extractor and diode formula extractor arrange or are not provided with chuck.One-level extraction phase is made up of mixed material entrance, layering tank, layering tank light phase export, diverter, layering tank heavy out, heavy phase connecting tube with raffinate phase separator with raffinate phase separator and two grades of extraction phases；Diverter is provided with light phase inlet, light phase hopper, light phase export, heavy liquid inlet, heavy phase downflow weir, heavy phase hopper, heavy out.
B. operational approach used includes:
Solution to be separated and extractant enter the flowing of one-level tubular type extractor limit, limit mixing, limit extraction；Go out the material of one-level tubular type extractor enter one-level extraction phase and raffinate phase separator carry out extraction phase and extract more than be separated, extraction phase enters extraction phase basin, and raffinate phase enters with another strand of extractant that flow in diode formula extractor limit, limit mixes, limit extracts；Going out the material of diode formula extractor to enter two grades of extraction phases and carry out second time extraction phase with raffinate phase separator and separate with raffinate phase, raffinate phase enters raffinate phase basin, and extraction phase returns one-level tubular type extractor.
Described a kind of tubular type continuous liquid-liquid extraction equipment and operational approach thereof, extractant or only by before diode formula extractor add, be added without extractant before one-level tubular type extractor.
Described a kind of tubular type continuous liquid-liquid extraction equipment and operational approach thereof, or n(n is set > 2) level tubular type extractor and n(n > 2) level tubular type extraction phase and raffinate phase separator, previous stage extraction phase enters next stage tubular type extractor with the isolated raffinate phase of raffinate phase separator, rear stage extraction phase and the isolated extraction phase of raffinate phase separator back into previous stage tubular type extractor, extractant adds before every one-level tubular type extractor or only adds before most end one-level tubular type extractor, or adds before part tubular type extractor.
Described a kind of tubular type continuous liquid-liquid extraction equipment and operational approach thereof, or one-level tubular type extractor and one-level extraction phase and raffinate phase separator are only set, without extraction phase circulation operation.
Described a kind of tubular type continuous liquid-liquid extraction equipment and operational approach thereof, its one-level tubular type extractor, diode formula extractor or with other extractor that can operate continuously replace；One-level extraction phase and raffinate phase separator and two grades of extraction phases replace with raffinate phase separator or with other Liquid liquid Separation device that can carry out operating continuously.
Described a kind of tubular type continuous liquid-liquid extraction equipment and operational approach, its device and operational approach are applicable to carry out the occasion that the heterogeneous mixing of material separates again.
Advantages of the present invention and effect be:
1, making extracting operation achieve continuous conduitization operation, equipment investment is few, and floor space is little；While realizing continuous extraction, also achieve being continuously separated of extraction phase and raffinate phase.
2, adopting with the interior tubular type extraction equipment setting dynamic and static turbulent element or chemical filler, extractant is abundant with solution mixing mass transfer to be separated, and effect of extracting is good, and efficiency is high, easy to operate, process stabilization.
3, extraction phase used is big with raffinate phase separator disposal ability, and good separating effect, two-phase laminated flow is thorough.
4, tubular type extractor and extraction phase and raffinate phase separator various combination mode can realize single-stage or multistage cocurrent extraction, it is possible to realizing every single-stage is cocurrent extraction, generally counter-current extraction.
5, equipment therefor small investment, operating cost is low, operating flexibility is big, equipment is without moving link, freedom from repairs, and effective production cycle is long.
Accompanying drawing explanation
The continuous liquid-liquid extractor sketch of tubular type that Fig. 1 is extraction phase when being light phase；
Fig. 2 is that extraction phase is attached most importance to the continuous liquid-liquid extractor sketch of tubular type of phase time；
Fig. 3 is a kind of extraction phase and raffinate phase separator sketch；
Fig. 4 is the diverter sketch of a kind of extraction phase and raffinate phase separator.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
The mixed liquor to be separated extraction phase after extracting operation is light phase.A kind of continuous liquid-liquid extractor of tubular type, one-level tubular type extractor (1) used and diode formula extractor (4) are made up of the interior straight tube setting chemical filler and elbow；Structure such as Fig. 3 of one-level extraction phase used and raffinate phase separator (2) and two grades of extraction phases and raffinate phase separator (5)；One-level tubular type extractor (1), one-level extraction phase are connected distribution of pipe such as Fig. 1 with raffinate phase separator (2), extraction phase basin (3), diode formula extractor (4), two grades of extraction phases with raffinate phase separator (5), raffinate phase basin (6) and equipment room.
Mixed liquor to be separated and extractant enter the flowing of one-level tubular type extractor (1) limit, limit mixes and carries out one-level extraction, the mixed liquor entrance one-level extraction phase and the raffinate phase separator (2) that go out one-level tubular type extractor (1) carry out weight and are separated, isolated extraction phase (light phase) flows out through the diverter light phase export of one-level extraction phase with raffinate phase separator (2), enters extraction phase basin (3)；One-level extraction phase isolates raffinate phase (heavy phase) with raffinate phase separator (2) and another burst of extractant entrance diode formula extractor (4) limit flowing, limit mixes, limit carries out reextraction；Going out the mixed liquor of diode formula extractor (4) to enter two grades of extraction phases and carry out weight with raffinate phase separator (5) and be separated, isolated extraction phase (light phase) returns to one-level tubular type extractor (1) through the diverter light phase export of two grades of extraction phases Yu raffinate phase separator (5) and again participates in extraction；Two grades of extraction phases enter raffinate phase basin (6) with raffinate phase separator (5) isolated raffinate phase (heavy phase).
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, is different in that mixed liquor to be separated is after extracting operation, and extraction phase is heavy phase；Device therefor and equipment room connect distribution of pipe such as Fig. 2.
Mixed liquor to be separated enters the flowing of one-level tubular type extractor (1) limit with extractant, limit mixes, limit carries out one-level extraction；The mixed liquor entrance one-level extraction phase going out one-level tubular type extractor (1) is easily separated with raffinate phase separator (2), and isolated raffinate phase (light phase) flows out with another burst of extractant entrance diode formula extractor (4) limit flowing, limit mixes, limit carries out reextraction with the diverter light phase export of raffinate phase separator (2) through one-level extraction phase；One-level extraction phase and raffinate phase separator (2) isolated extraction phase (heavy phase) enter extraction phase basin (3)；The mixed liquor two grades of extraction phases of entrance and the raffinate phase separator (5) that go out diode formula extractor (4) carry out weight and are separated, and isolated raffinate phase (light phase) enters raffinate phase basin (6) through the diverter light phase export of two grades of extraction phases with raffinate phase separator (5)；Two grades of extraction phases return to one-level tubular type extractor (1) with raffinate phase separator (5) isolated extraction phase (heavy phase) and again participate in extracting.
Embodiment 3
Embodiment 3 is substantially the same manner as Example 1, is different in that one-level tubular type extractor (1) used and diode formula extractor (4) are made up of commercially available static mixer and bend pipe.
Embodiment 4
Embodiment 4 is substantially the same manner as Example 1, is different in that equipment therefor only arranges one-level tubular type extractor (1) and one-level extraction phase and raffinate phase separator (2), without diode formula extractor (4) and two grades of extraction phases and raffinate phase separator (5).
Embodiment 5
Embodiment 5 is substantially the same manner as Example 1, is different in that described device and operational approach are for the washing operation in Chemical Manufacture, and the extractant in embodiment 1 changes the detergent in washing operation into.
Claims (6)
1. a tubular type continuous liquid-liquid extraction equipment and operational approach thereof, it is characterised in that:
A. extraction equipment used includes: one-level tubular type extractor (1), one-level extraction phase are connected pipeline, material-handling pump, control and display instrument and various adnexa with raffinate phase separator (2), extraction phase basin (3), diode formula extractor (4), two grades of extraction phases with raffinate phase separator (5), raffinate phase basin (6), equipment room, such as effusion meter, thermometer, Pressure gauge, liquidometer, visor, look cup；One-level tubular type extractor (1) and diode formula extractor (4) are straight tube, arrange dynamic and static turbulent element or chemical filler that the medium within it flowed has perturbation action in the blank pipe of curved tube or straight tube and curved tube combination or pipe；One-level tubular type extractor (1) and diode formula extractor (4) arrange or are not provided with chuck；One-level extraction phase is made up of mixed material entrance, layering tank, layering tank light phase export, diverter, layering tank heavy out, heavy phase connecting tube with raffinate phase separator (5) with raffinate phase separator (2) and two grades of extraction phases；Diverter is provided with light phase inlet, light phase hopper, light phase export, heavy liquid inlet, heavy phase downflow weir, heavy phase hopper, heavy out；
B. operational approach used includes
Solution to be separated and extractant enter the flowing of one-level tubular type extractor (1) limit, limit mixing, limit extraction；Go out the material of one-level tubular type extractor (1) enter one-level extraction phase and raffinate phase separator (2) carry out extraction phase and extract more than be separated, extraction phase enters extraction phase basin (3), and raffinate phase enters the flowing of diode formula extractor (4) limit with another strand of extractant, limit mixes, limit extracts；Going out the material of diode formula extractor (4) to enter two grades of extraction phases and carry out second time extraction phase with raffinate phase separator (5) and separate with raffinate phase, raffinate phase enters raffinate phase basin (6), and extraction phase returns one-level tubular type extractor (1).
2. a kind of tubular type continuous liquid-liquid extraction equipment according to claim 1 and operational approach thereof, it is characterised in that described extractant or only by diode formula extractor (4) front addition, one-level tubular type extractor (1) is front is added without extractant.
3. a kind of tubular type continuous liquid-liquid extraction equipment according to claim 1 and operational approach thereof, it is characterized in that or n(n is set 2) level tubular type extractor and n(n > 2) level tubular type extraction phase and raffinate phase separator, previous stage extraction phase enters next stage tubular type extractor with the isolated raffinate phase of raffinate phase separator, rear stage extraction phase and the isolated extraction phase of raffinate phase separator back into previous stage tubular type extractor, extractant adds before every one-level tubular type extractor or only adds before most end one-level tubular type extractor, or adds before part tubular type extractor.
4. a kind of tubular type continuous liquid-liquid extraction equipment according to claim 1 and operational approach thereof, it is characterised in that or one-level tubular type extractor and one-level extraction phase and raffinate phase separator are only set, without extraction phase circulation operation.
5. a kind of tubular type continuous liquid-liquid extraction equipment according to claim 1 and operational approach thereof, it is characterised in that one-level tubular type extractor (1), diode formula extractor (4) or replace with other extractor that can operate continuously；One-level extraction phase and raffinate phase separator (2) and two grades of extraction phases and raffinate phase separator (5) or with the replacement of other Liquid liquid Separation device that can carry out operating continuously.
6. a kind of tubular type continuous liquid-liquid extraction equipment according to claim 1 and operational approach thereof, it is characterised in that described device and operational approach are applicable to carry out the occasion that the heterogeneous mixing of material separates again.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178587A (en) * | 2016-08-26 | 2016-12-07 | 晨光生物科技集团股份有限公司 | A kind of efficient extracting system of active components of plants |
| CN107485889A (en) * | 2017-09-08 | 2017-12-19 | 瓮福达州化工有限责任公司 | A kind of wet phosphoric acid purifying extracting system |
| CN110559684A (en) * | 2019-09-16 | 2019-12-13 | 西南石油大学 | two-stage skid-mounted separation device for continuously extracting oil-based components from oil-containing solid waste by adopting supercritical carbon dioxide |
| CN111559737A (en) * | 2020-05-27 | 2020-08-21 | 河南洛染股份有限公司 | Method for continuously extracting nitration waste acid |
| CN112494989A (en) * | 2020-12-25 | 2021-03-16 | 安徽金轩科技有限公司 | Continuous extraction method for producing oxime acid from furan ammonium salt |
| CN112851550A (en) * | 2021-01-20 | 2021-05-28 | 山东亿盛实业股份有限公司 | Method and equipment for continuously extracting and separating acetonitrile water azeotrope |
| CN113563926A (en) * | 2020-04-29 | 2021-10-29 | 国家能源投资集团有限责任公司 | System and method for extracting montan wax from pulverized coal |
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| CN2912753Y (en) * | 2005-11-10 | 2007-06-20 | 上海大学 | Spraying extraction apparatus |
| CN101322886A (en) * | 2008-07-24 | 2008-12-17 | 苏州中门子科技有限公司 | Oil-water automatic segregator |
| CN101898048A (en) * | 2009-06-01 | 2010-12-01 | 瓮福（集团）有限责任公司 | Extraction device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2912753Y (en) * | 2005-11-10 | 2007-06-20 | 上海大学 | Spraying extraction apparatus |
| CN101322886A (en) * | 2008-07-24 | 2008-12-17 | 苏州中门子科技有限公司 | Oil-water automatic segregator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178587A (en) * | 2016-08-26 | 2016-12-07 | 晨光生物科技集团股份有限公司 | A kind of efficient extracting system of active components of plants |
| CN106178587B (en) * | 2016-08-26 | 2018-10-30 | 晨光生物科技集团股份有限公司 | A kind of efficient extracting system of active components of plants |
| CN107485889A (en) * | 2017-09-08 | 2017-12-19 | 瓮福达州化工有限责任公司 | A kind of wet phosphoric acid purifying extracting system |
| CN110559684A (en) * | 2019-09-16 | 2019-12-13 | 西南石油大学 | two-stage skid-mounted separation device for continuously extracting oil-based components from oil-containing solid waste by adopting supercritical carbon dioxide |
| CN110559684B (en) * | 2019-09-16 | 2021-11-02 | 西南石油大学 | Two-stage skid-mounted separation device for continuously extracting oil-based components from oil-containing solid waste by adopting supercritical carbon dioxide |
| CN113563926A (en) * | 2020-04-29 | 2021-10-29 | 国家能源投资集团有限责任公司 | System and method for extracting montan wax from pulverized coal |
| CN111559737A (en) * | 2020-05-27 | 2020-08-21 | 河南洛染股份有限公司 | Method for continuously extracting nitration waste acid |
| CN112494989A (en) * | 2020-12-25 | 2021-03-16 | 安徽金轩科技有限公司 | Continuous extraction method for producing oxime acid from furan ammonium salt |
| CN112851550A (en) * | 2021-01-20 | 2021-05-28 | 山东亿盛实业股份有限公司 | Method and equipment for continuously extracting and separating acetonitrile water azeotrope |
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Application publication date: 20160706 |