CN107029450B - Novel cluster extraction device and cluster extraction method - Google Patents
Novel cluster extraction device and cluster extraction method Download PDFInfo
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- CN107029450B CN107029450B CN201710371244.4A CN201710371244A CN107029450B CN 107029450 B CN107029450 B CN 107029450B CN 201710371244 A CN201710371244 A CN 201710371244A CN 107029450 B CN107029450 B CN 107029450B
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Abstract
The invention discloses a novel cluster extraction device and a cluster extraction method, which mainly comprise a shell, N small-caliber extraction towers, a lower clarifying tank, an upper tube plate, a lower tube plate, a heavy phase distributor, a light phase distributor, an extractant feeding port, an extract liquid feeding port, a heavy phase discharging port, a light phase discharging port, an interface meter, a densimeter, a heat exchange medium inlet, a heat exchange medium outlet, a filler, a baffle plate, power pump equipment and a control system, wherein the N small-caliber extraction towers are connected in parallel; the continuous phase and the dispersed phase of each extraction tower are finally converged into an upper clarifying tank and a lower clarifying tank, and the stable operation can be realized by controlling the interface of the extraction process in normal operation; the invention is applied to the fields of petrochemical industry, coal chemical industry, pharmaceutical chemical industry and other liquid-liquid extraction; the invention solves the problems of low conversion rate, selectivity and yield in the production process, low efficiency of extraction equipment, large using amount of an extracting agent, complex process and high energy consumption, and the cluster extraction device has the advantages of simple structure, low investment, easy operation and high efficiency.
Description
Technical Field
The invention relates to a novel cluster extraction device and a cluster extraction method. The invention is especially suitable for liquid-liquid continuous extraction, especially for mass transfer separation process for realizing component separation in laboratory or industrial scale in the fields of petrochemical industry, coal chemical industry and pharmaceutical chemical industry.
Background
As early as one thousand years ago, the people who work in China have applied extraction methods in long-term production and labor practices, such as extracting effective components in the pharmaceutical industry or fragrant flowers (such as roses) by using distilled liquor (organic solvent). A first example of an early study of liquid-liquid extraction was the extraction of uranyl nitrate by Peligot in 1842 with diethyl ether. Later, with the development of social production, particularly the development of chemical industry, people continuously find that some inorganic matters can be extracted by some organic solvents. In the late nineteenth century, based on the conclusion of a certain number of liquid-liquid equilibrium distribution results, Berthlot and Jungfleisch in 1872 first made empirical quantitative inferences about liquid-liquid equilibrium. Next, in 1891 Nernst clarified this according to the mechanical relationship, and the famous Nernst distribution law was proposed, so as to lay the earliest theoretical foundation for the development of extraction chemistry and chemical engineering. The earliest practical application of liquid-liquid extraction was the extraction of concentrated acetic acid from dilute solutions of acetic acid by Goering using solvents such as ethyl acetate. 1908 Edelenu used solvent extraction in the petroleum industry first. He used liquid sulfur dioxide as a solvent to extract aromatic hydrocarbons from the romania kerosene. In the early thirties of the twentieth century, the problem of extraction and separation of rare earth elements began to be studied, but no practical results were obtained for a long time. Since the forty years, research into extraction chemistry has been greatly facilitated as the development of the nuclear power industry is based on the need to produce nuclear fuels. Especially, after the end of the twenty-century and the fortieth years, TBP is adopted as an extracting agent of nuclear fuel, the extraction process is increasingly widely applied and developed.
Compared with the prior various separation processes (such as stepped precipitation, fractional crystallization, ion exchange and the like), the extraction process has a series of characteristics of high extraction and separation efficiency, high production capacity, convenience for quick continuous and safe operation, easiness for realizing automatic control and the like, so that the preparation of a novel extracting agent, the research of extraction chemistry and an extraction process, and the development and application of novel high-efficiency extraction equipment are greatly developed in the last thirty years. In recent years, due to the improvement and innovation of extraction equipment, the popularization of the reflux extraction process and the popularization and application of DCS, the extraction efficiency is improved, and therefore more favorable conditions are created for the wide application of the extraction process.
With the widespread use of liquid-liquid extraction in various separation and extraction processes, more and more research has been conducted on extraction chemistry, processes and equipment. In recent decades, especially for research and development of extraction equipment, scientific researchers in various countries invest in manpower, material resources and financial resources, and various types of extraction equipment are developed. The existing extraction equipment has a plurality of types. The liquid flow contact mode comprises the following steps: the step-by-step contact type and the continuous contact type are typically represented by a mechanically stirred mixer-settler, and also comprise an air pulse mixer-settler, a gravity sieve-plate tower, a centrifugal extractor and the like; while the continuous contact device is primarily an extraction column followed by a centrifugal extractor. The kinetics of the phase dispersion are: the extraction tower comprises a gravity type spray tower, a packed tower, a mechanical stirring type rotating disc tower, a Siebel tower, a Mikesike tower, a Kunita tower and the like. In addition, there are also pulse packed towers and sieve plate towers, reciprocating vibrating sieves, and the like. The existing extraction devices have the following problems: the gradual contact type solvent retention is large in equipment floor area, and is not suitable for a system with large required theoretical stages; the continuous contact system with low difficult processing density can not adapt to high-ratio operation, the amplification design is unreliable, the structure is complex and difficult to process, and the manufacturing cost and the maintenance cost are high. The prior extraction equipment has the following problems of long contact time of two-phase materials, large using amount of an extracting agent, low mass transfer efficiency, low stage efficiency and easy generation of counter current and flooding.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a novel cluster extraction device and a cluster extraction method aiming at the defects of the prior art, the novel cluster extraction device has the advantages of simple structure, reasonable design, simple and convenient use and operation and good use effect, and can effectively solve the problems of large volume, high investment cost, long contact time of two-phase materials, large using amount of an extracting agent, low mass transfer efficiency, low level efficiency and easiness in generation of counter flow and flooding of the conventional extraction device.
In order to solve the technical problems, the invention adopts the technical scheme that: on a cluster extraction device, N extraction towers (N is a natural number except 0 and 1, 2, 3, 4, 5, 6 and 7.) with the same diameter, height and specification are connected in parallel, the upper part and the lower part (upper part or lower part) of each extraction tower are respectively provided with an independent feeding pipe, and the continuous phase and the disperse phase of each extraction tower are finally collected into an upper clarifying tank and a lower clarifying tank; the cluster extraction equipment comprises a shell, N extraction sections, an upper clarifying tank (an upper end enclosure), a lower clarifying tank (a lower end enclosure), an upper tube plate, a lower tube plate, a heavy phase distributor, a light phase distributor, an extractant feed inlet, an extract liquid feed inlet, a heavy phase discharge outlet, a light phase discharge outlet, an interface meter, a densimeter, a heat exchange medium inlet (outlet), a heat exchange medium outlet (inlet), a filler, a baffle plate, power pump equipment and a control system; when the extraction equipment is started, the continuous phase is filled in the extraction equipment, then the disperse phase is started, the disperse phase is condensed and discharged from the extraction equipment, when the light phase is the disperse phase, the disperse phase is condensed at the top layered section of the extraction equipment, the proper height of the two phases is maintained, then the disperse phase is started, the height of the interface is adjusted by depending on the flow of the heavy phase outlet, when the heavy phase is the disperse phase, the disperse phase is condensed at the bottom layered section of the extraction equipment, and the two-phase interface is maintained at the proper position of the bottom layered section of the extraction equipment.
The novel cluster extraction device and the cluster extraction method are characterized in that: the diameter of each extraction tower is DN 8-DN 100, and the height of each extraction tower is 5 cm-10000 cm.
The novel cluster extraction device and the cluster extraction method are characterized in that: the diameter of a single tube of each heavy phase distributor is DN 6-DN 80, and the diameter of a single tube of each light phase distributor is DN 6-DN 80.
The novel cluster extraction device and the cluster extraction method are characterized in that: the diameter of a single pipe opening of the upper pipe plate is DN 8-DN 100, and the diameter of a single pipe opening of the lower pipe plate is DN 8-DN 100.
The novel cluster extraction device and the cluster extraction method are characterized in that: the diameter of an extracting agent feeding hole is DN 6-DN 500, the diameter of an extraction liquid feeding hole is DN 6-DN 500, the diameter of a heavy phase discharging hole is DN 6-DN 500, and the diameter of a light phase discharging hole is DN 6-DN 500.
The novel cluster extraction device and the cluster extraction method are characterized in that: the extraction tubes are made of metal, engineering plastics, glass and ceramics.
The novel cluster extraction device and the cluster extraction method are characterized in that: the filler is made of metal, engineering plastics, glass and ceramics; the type of the filler is regular, bulk, spring and brush, and the filler is filled according to the property of the material.
The novel cluster extraction device and the cluster extraction method are characterized in that: the feeding temperature of the continuous phase is-30-300 ℃, the feeding temperature of the disperse phase is-30-300 ℃, the extraction pressure is 1 Kpa-10 Mpa, the density is 0.500-1.500 ppm, and the interface is 30 +/-10%; the continuous phase ratio and the dispersion phase ratio are 0.1-5.0.
Compared with the prior art, the invention has the following advantages:
[1, simple process, reasonable design, reliable amplification design, low energy consumption, high efficiency, simple structure, easy processing, low manufacturing cost, low maintenance cost and low operation cost and input cost.
2. The production and extraction process has high extraction efficiency and high reaction conversion rate and yield.
3. High mass transfer efficiency, high stage efficiency, difficult generation of counter flow and liquid flooding and easy operation.
4. The contact time of two-phase materials is short, and the usage amount of the extracting agent is small.
5. The method is easy to realize industrialization, reduces the production cost of petrochemical industry, coal chemical industry and pharmaceutical chemical industry, has wide application prospect, and has obvious economic, social and environmental benefits.
In conclusion, the invention has the advantages of simple structure, reasonable design and simple and convenient use and operation, and can effectively overcome the defects of complex extraction process, larger equipment volume, higher investment cost, lower product yield, poor use effect and the like of the existing extraction equipment.
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the equipment structure and process flow of the present invention.
Fig. 2 is a block diagram of another type of the apparatus of the present invention.
Fig. 3 is a top view of the tube plates 5 and 6 in fig. 1.
Fig. 4 is a schematic diagram of 7 and 8 distributors in fig. 1.
FIG. 1 depicts in notation:
1-a housing; 2-N extraction stages; 3, putting the mixture into a clarifying tank;
4, discharging a clarifying tank; 5, an upper tube plate; 6-lower tube plate;
7-light phase distributor; 8-heavy phase distributor; 9-light liquid inlet;
10-heavy liquid inlet; 11-heavy liquid outlet; 12-light liquid outlet;
13-an interface meter; 14-a densitometer; 15-heat exchange medium inlet (outlet);
16-heat exchange medium outlet (inlet); 17-a filler;
18-baffle plate.
Detailed Description
Examples
As shown in fig. 1, the cluster extraction apparatus and the cluster extraction method of the present embodiment are:
on a cluster extraction device, N extraction towers (N is a natural number except 0 and 1, 2, 3, 4, 5, 6 and 7.) with the same diameter, height and specification are connected in parallel, the upper part and the lower part (upper part or lower part) of each extraction tower are respectively provided with an independent feeding pipe, the continuous phase and the disperse phase of each extraction tower are finally collected into an upper clarifying tank and a lower clarifying tank, and the stable and efficient operation can be easily achieved only by controlling the interface of the extraction process in normal operation;
the cluster extraction equipment comprises a shell (1), N small-caliber extraction towers (2), an upper clarifying tank (an upper end enclosure) (3), a lower clarifying tank (a lower end enclosure) (4), an upper tube plate (5), a lower tube plate (6), a heavy phase distributor (8), a light phase distributor (7), an extractant feed inlet (9 or 10), an extract liquor feed inlet (9 or 10), a heavy phase discharge outlet (11), a light phase discharge outlet (12), an interface meter (13), a densimeter (14), a heat exchange medium inlet (outlet) (15 or 16), a heat exchange medium outlet (inlet) (15 or 16), a filler (17), a baffle plate (18), power pump equipment and a control system;
when the extraction equipment is started, the continuous phase is filled in the extraction equipment, then the disperse phase is started, the disperse phase is condensed and discharged from the extraction equipment, when the light phase is the disperse phase, the disperse phase is condensed at the top layered section of the extraction equipment, the proper height of the two phases is maintained, then the disperse phase is started, the height of the interface is adjusted by depending on the flow of the heavy phase outlet, when the heavy phase is the disperse phase, the disperse phase is condensed at the bottom layered section of the extraction equipment, and the two-phase interface is maintained at the proper position of the bottom layered section of the extraction equipment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a novel extraction tied in a bundle which characterized in that: on a cluster extraction device, N extraction pipes (N is a natural number except 0 and 1, 2, 3, 4, 5, 6 and 7.) with the same diameter, height, specification and material are connected in parallel, an independent feeding pipe is respectively arranged on and/or under each extraction pipe, and the continuous phase and the disperse phase of each extraction pipe are finally collected into an upper clarifying tank and a lower clarifying tank; the cluster extraction equipment comprises a shell (1), N small-caliber extraction towers (2), an upper clarifying tank (3), a lower clarifying tank (4), an upper pipe plate (5), a lower pipe plate (6), a heavy phase distributor (8), a light phase distributor (7), an extractant feeding port (9 or 10), an extract liquid feeding port (9 or 10), a heavy phase discharging port (11), a light phase discharging port (12), an interface meter (13), a densimeter (14), a heat exchange medium inlet (15 or 16), a heat exchange medium outlet (15 or 16), a filler (17), a baffle plate (18), power pump equipment and a control system; the extraction agent feed port or the extraction liquid feed port is arranged on the feed pipe, the heavy phase distributor and the light phase distributor are respectively arranged at the upper end and the lower end of the extraction tower, the feed pipe is connected to the heavy phase distributor and the light phase distributor, the outlet ends of the light phase distributor and the heavy phase distributor are correspondingly arranged in each extraction tower one by one, the upper pipe plate and the lower pipe plate are respectively arranged at the upper end and the lower end of the extraction tower and are respectively arranged at the lower end of the heavy phase distributor and the upper end of the light phase distributor, meanwhile, the two ends of each extraction tower are respectively arranged on the upper pipe plate and the lower pipe plate, the upper clarifying tank and the lower clarifying tank are respectively arranged at the upper end and the lower end of the extraction tower and are respectively arranged at the upper end of the heavy phase distributor and the lower end of the light phase distributor; when the extraction equipment is started, filling the continuous phase into the extraction equipment, starting the disperse phase, discharging the disperse phase from the extraction equipment after agglomeration, wherein when the light phase is the disperse phase, the disperse phase is agglomerated in the top layering section of the extraction equipment, maintaining the proper height of the two phases, starting the disperse phase, adjusting the height of an interface by depending on the flow of a heavy phase outlet, when the heavy phase is the disperse phase, the disperse phase is agglomerated in the bottom layering section of the extraction equipment, and the interface of the two phases is maintained at the proper position of the bottom layering section of the extraction equipment;
the heat exchange medium inlet (15 or 16) and the heat exchange medium outlet (15 or 16) are arranged on the shell, and the shell is coated on the outer side of each extraction section;
the diameter of each extraction tower is DN 8-DN 100, and the height of each extraction tower is 5 cm-10000 cm; the diameter of a single tube of each heavy phase distributor is DN 6-DN 80, and the diameter of a single tube of each light phase distributor is DN 6-DN 80; the diameter of a single pipe opening of the upper pipe plate is DN 8-DN 100, and the diameter of a single pipe opening of the lower pipe plate is DN 8-DN 100; the diameter of an extracting agent feeding hole is DN 6-DN 500, the diameter of an extraction liquid feeding hole is DN 6-DN 500, the diameter of a heavy phase discharging hole is DN 6-DN 500, and the diameter of a light phase discharging hole is DN 6-DN 500.
2. The novel cluster extraction device of claim 1, characterized in that: the extraction tubes are made of metal, engineering plastics, glass and ceramics.
3. The novel cluster extraction device of claim 1, characterized in that: the filler is made of metal, engineering plastics, glass and ceramics; the type of the filler is regular, bulk, spring and brush, and the filler is filled according to the property of the material.
4. The novel cluster extraction device of claim 1, wherein the feeding temperature of the continuous phase is-30 ℃ to 300 ℃, the feeding temperature of the disperse phase is-30 ℃ to 300 ℃, the extraction pressure is 1Kpa to 10Mpa, the density is 0.500 to 1.500ppm, and the interface is 30 +/-10%; the continuous phase ratio and the dispersion phase ratio are 0.1-5.0.
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| CN107029450B true CN107029450B (en) | 2020-10-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU181136U1 (en) * | 2018-03-06 | 2018-07-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") | Extraction plant |
| WO2021081724A1 (en) * | 2019-10-28 | 2021-05-06 | 江西虔研科技咨询有限公司 | Energy-saving extraction device for treating scraps of neodymium iron boron |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638409A (en) * | 1946-12-17 | 1953-05-12 | Bottaro Giacomo | Countercurrent extraction apparatus and process |
| CN201253502Y (en) * | 2008-05-21 | 2009-06-10 | 大连理工大学 | Pulse extraction device of one-device two-tower structure |
| CN102698465A (en) * | 2012-05-31 | 2012-10-03 | 北京泽华化学工程有限公司 | Packing extracting tower with redistributors and/or vertical baffle plates |
| CN102974128A (en) * | 2012-11-28 | 2013-03-20 | 中国科学院南京土壤研究所 | Centrifugal stirring extraction tower |
| CN203370323U (en) * | 2013-07-26 | 2014-01-01 | 玄浩 | Centrifugal extractor with temperature jacket |
| CN204193559U (en) * | 2014-10-31 | 2015-03-11 | 江西高信有机化工有限公司 | A kind of extraction tower with observation and photologging function |
| CN105669345A (en) * | 2016-04-05 | 2016-06-15 | 华东理工大学 | Complete equipment for further separating methanol and water from C4 |
-
2017
- 2017-05-24 CN CN201710371244.4A patent/CN107029450B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638409A (en) * | 1946-12-17 | 1953-05-12 | Bottaro Giacomo | Countercurrent extraction apparatus and process |
| CN201253502Y (en) * | 2008-05-21 | 2009-06-10 | 大连理工大学 | Pulse extraction device of one-device two-tower structure |
| CN102698465A (en) * | 2012-05-31 | 2012-10-03 | 北京泽华化学工程有限公司 | Packing extracting tower with redistributors and/or vertical baffle plates |
| CN102974128A (en) * | 2012-11-28 | 2013-03-20 | 中国科学院南京土壤研究所 | Centrifugal stirring extraction tower |
| CN203370323U (en) * | 2013-07-26 | 2014-01-01 | 玄浩 | Centrifugal extractor with temperature jacket |
| CN204193559U (en) * | 2014-10-31 | 2015-03-11 | 江西高信有机化工有限公司 | A kind of extraction tower with observation and photologging function |
| CN105669345A (en) * | 2016-04-05 | 2016-06-15 | 华东理工大学 | Complete equipment for further separating methanol and water from C4 |
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