JPH0724725B2 - Liquid chromatographic separation device for three-component separation - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid chromatographic separation device capable of efficiently separating three components, and more specifically, a three-component separation by combining simulated moving bed liquid chromatography and preparative liquid chromatography. The present invention relates to a liquid chromatographic separation device capable of efficiently performing the above.

[0002]

2. Description of the Related Art In recent years, there has been a demand for a technique for separating and purifying a target substance from a reaction product obtained by a chemical reaction (biochemical reaction) with high purity and high recovery rate.
Various separation techniques such as crystallization and liquid chromatography are used. It is necessary to select these separation technologies in consideration of the types of substances to be separated, the difficulty of separation, the processing conditions, etc. Among them, the affinity (distribution) for two phases (stationary phase and liquid phase) that do not mix with each other. Separation by liquid chromatography using the difference of
Widely used in the chemical field. Liquid chromatographic separation devices are roughly classified into three types, batch type, circulation type and simulated moving bed type, depending on the method, but when performing separation in a system that is difficult to separate or continuous large-scale separation, a simulated moving bed type is used. Chromatography is suitable.

However, the simulated moving bed type chromatographic separation requires 2
Since the target is the separation of components (multi-components that can be regarded as two components), the three components cannot be separated as they are. When separating three components from a mixture, the conventional methods are (1) preparative liquid chromatography, (2) two-stage method of simulated moving bed liquid chromatography, and (3) JP-A-64-80.
A method of alternately combining two kinds of fillers as described in Japanese Patent No. 409, etc. can be considered.

FIG. 5 shows a schematic diagram of separation by preparative liquid chromatography. After injecting a certain amount of the mixture 74 into the column 72 packed with the chromatographic packing material 70 and then feeding the eluent, the components having a weak affinity (distribution) between each component in the mixture and the packing material are sequentially discharged from the column 72. Therefore, when a desired component flows out, it is separately collected. FIG. 5 shows the case where the affinity with the filler is weak in the order of the X, Δ, and ● components (the ● mark is the weakest).

FIG. 6 is a conceptual diagram of conventional two-component separation using a moving bed. Component A (sorbate) having a strong affinity with the filler (solid sorbent) and component B having a weak affinity with the filler
When the (non-sorbate) is separated, the moving speeds of the component A and the component B in the column (packed bed) packed with the packing material are Va and Vb, respectively. As shown in FIG. 6, when the filler is moved at the intermediate velocity Vs in the direction opposite to the flow direction of the fluid, the component B is at the velocity of Vb-Vs in the fluid movement direction, and the component A is at the velocity of Vs-Va. Since the fillers move in the moving direction, the continuous separation of the two components A and B becomes possible.
This is well known as a moving bed type. However, it is difficult to actually move the filler because it causes wear of the filler and changes in the porosity. In the simulated moving bed type, 1
The above function is achieved without actually moving the packing material by dividing the column into several or dozens and moving the inlet and outlet of each column in the liquid flow direction at regular intervals. As a result, it is possible to eliminate the drawbacks of the moving bed system and continuously separate two components (or multiple components that can be regarded as two components).

As shown in FIG. 7, the simulated moving bed is usually 4
It consists of two bands (zones). In the primary purification zone (zone 1), component B (non-sorbate), which has a weak affinity with the packing material
To recover the eluent (desorbent fluid), the adsorption zone (zone 2) separates component A (sorbate) and component B, which have a strong affinity for the packing material, and raffinate (non-sorbate). Secondary purification zone (zone 3) desorbs component B and component A purifies component A, and the desorption zone (zone 4) desorbs purified component A to recover component B as a rich fluid). It is provided to collect as an extract (fluid rich in sorbate).

FIG. 8 is developed by the present applicant and has already been filed in Japanese Patent Application No. 2
The schematic flow of the simulated moving bed type liquid chromatographic separation device which applied for a patent as -253944 is shown. In FIG. 8, as an example, 12 unit packed beds (columns) 11 to 2 are used.
2 are connected by circulation conduits 601-612. The raw material liquid is introduced into each unit packed bed via the raw material liquid pump 41, the raw material liquid conduit 807, and the raw material liquid introducing branch pipes 401 to 412 communicating with this. Raw material liquid introduction branch pipes 401 to 41
The two-way solenoid valves VF1 to VF12 are provided.
The desorbent fluid (eluent) is introduced into each unit packed bed through the eluent pump 47, the eluent conduit 808, the circulation pump 46, the circulation conduit 810, and the eluent introduction branch pipes 501 to 512. The two-way solenoid valves VD1 to VD1 to
VD12 is provided. The sorbate-rich fluid (extract) is the extract extraction branch pipes 201 to 21.
2. Extracted from each unit packed bed via the extract conduit 805 and the extract pump 43. Two-way solenoid valves VE1 to VE12 are provided in these branch pipes 201 to 212. On the other hand, the fluid (raffinate) rich in non-sorbate is extracted from each unit packed bed via the raffinate extraction branch pipes 301 to 312, the raffinate conduit 806, and the raffinate pump 45. These branch pipes 301
2 to 312 are also provided with two-way solenoid valves VR1 to VR12.

Extract withdrawal branch pipes 201-212
The three-way solenoid valves VT1 to VT1 are respectively provided in the conduits connecting the Raffinate withdrawal branch pipes 301 to 212.
2 is provided, and one of these three-way solenoid valves VT1 to VT12 has an eluent pump 47 via conduits 901 to 912.
Is connected to the circulation conduit 810. The raffinate pump 45, the extract pump 43, the raw material liquid pump 41, and the circulation pump 46 are all controlled so that the flow rate becomes a set value (constant). Further, the eluent pump 47 and the back pressure valve 48 are controlled so that the back pressure of the circulation pump 46 becomes a set value (constant). In a simulated moving floor,
At the same time, four side ports are activated and the packed bed is functionally dependent on these side ports in four zones, namely:
Non-sorbate-rich fluid (raffinate) from raw material liquid inlet
Adsorption zone (zone 2) that occupies the space between the outlet and the outlet of the primary purification zone (zone 1) that extends from the outlet of the fluid rich in non-sorbate to the inlet for the desorbent fluid (eluent), desorption The desorption zone (zone 4) occupies the area from the agent fluid inlet to the outlet for the sorbate-rich fluid (extract), and the area between the outlet for the sorbent-rich fluid and the source liquid inlet It is composed of four zones (zones) of the next purification zone (zone 3).

Next, an example of the opening / closing cycle of the solenoid valve in FIG. 8 will be described when the unit packed bed is 12. The separation pattern has three primary purification zones (zone 1), adsorption zones (zone 2), secondary purification zones (zone 3), and desorption zones (zone 4). Since there are twelve unit packed beds, twelve steps will be performed. As an example, FIG. 8 shows step 1 (step 1), step 2 (step 2) in FIG. 9, and step 3 (step 3) in FIG. The open / closed state of each solenoid valve in this case is as shown in Table 1. 8 to 1
At 0, a thick solid line indicates a portion where the liquid is flowing, and a black valve indicates a closed state.

[0010]

[Table 1]

In step 1 of FIG. 8, the raw material liquid is supplied to the packed bed 17 and circulates in the packed beds 18 and 19. During this time, the sorbate-rich material is adsorbed by the packing material and the non-sorbate-rich fluid is withdrawn from the packed bed 19 as a raffinate. That is, the packed beds 17 to 19 are adsorption zones (zone 2). On the other hand, the circulating fluid containing the eluent is the packed bed 11
And is circulated through the packed beds 12, 13. During this time, the sorbate adsorbed on the packing material is desorbed, and the fluid rich in sorbate is extracted from the packed bed 13 as an extract. That is, the packed beds 11 to 13 are desorption zones (zone 4). The circulating fluid is circulated to the packed beds 20 to 22. During this period, the non-sorbate is adsorbed by the packing material, becomes a fluid containing neither sorbate nor non-sorbate, and is extracted from the packed bed 22. That is, the packed beds 20 to 22 become the primary purification zone (zone 1). The circulating fluid is circulated to the packed beds 14 to 16, and the non-sorbate adsorbed by the packing material is desorbed during this period, while the sorbate is adsorbed by the packing material and purified. That is, the packed beds 14 to 16 are the secondary purification zone (zone 3).
Becomes

In step 2 of FIG. 9, step 1
Is switched to the left by one packed bed, the packed beds 12 to 14 are the desorption zone (zone 4), the packed beds 15 to 17 are the secondary purification zone (zone 3), and the packed bed 18 to
20 is the adsorption zone (zone 2), packed beds 21, 22, 11
Is the primary purification zone (zone 1).

In step 3 of FIG. 10, the state in step 2 is further shifted to the left by one packed bed, and the packed beds 13 to 15 are switched to the desorption zone (zone 4).
Packed beds 16-18 are secondary purification zones (zone 3), packed beds 19-21 are adsorption zones (zone 2), packed beds 22, 1
1 and 12 are the primary refining zone (zone 1). Although not shown in the figure, the packed beds are switched to the left one by one, and the operation is repeated up to step 12 to repeat these operations. Circulation pump 4 in any step
The suction conduit of 6 is connected to the outlet of the final packed bed of the primary purification zone (zone 1) and the discharge conduit of the circulation pump 46 is connected to the inlet of the first packed bed of the desorption zone (zone 4). Become. Therefore, the change in the physical properties of the liquid introduced into the circulation pump 46 becomes small, and stable operation can be performed.
In particular, the viscosity between the primary purification zone (zone 1) and the desorption zone (zone 4) is the lowest, which is preferable.

[0014]

When three-component separation is carried out from a mixture, a large amount of eluent is generally required in order to achieve sufficient separation that is suitable for the purpose of preparative chromatography. However, since the product is diluted, there is a problem that the concentration cost becomes large. Simulated moving bed chromatography, which is a continuous liquid chromatography, has the advantage that it requires less eluent, but since the separation is limited to two components (multi-components that can be regarded as two components), it is possible to use 3 out of the mixture. In order to separate the components, it is necessary to perform the simulated moving bed type liquid chromatographic separation in two stages, which has a drawback that the equipment cost becomes large. In addition, JP-A-6
In the method described in 4-80409, columns packed with packing materials having different affinities for components are alternately arranged to achieve three-component separation by simulated moving bed liquid chromatography, but packing suitable for a substance to be separated It was difficult to select the material, and it was limited to the special cases. Therefore, a three-component separation technique having a wide application range and high efficiency has been desired. The present invention has been made in view of the above points, and provides a liquid chromatography capable of efficiently separating three components from a mixture by combining a simulated moving bed liquid chromatography and a preparative liquid chromatography. That is the purpose.

[0015]

In order to achieve the above-mentioned object, the liquid chromatographic separation device of the present invention has a structure shown in FIG.
~ As shown in Fig. 3, four or more unit packed beds (columns) 1 packed with a solid sorbent and arranged in series
1 to 22. A fluid is circulated in one direction by a circulation pump 46 in a packed bed in which the front end and the rear end of these unit packed beds are connected by a flow path to form an endless shape. The raw material liquid and the eluent are introduced into the circulating fluid, and at the same time, the fluid rich in non-sorbate and the fluid rich in sorbate are extracted from the unit packed bed and introduced into the packed bed or extracted from the packed bed. The fluid inlets and outlets are alternately arranged along the flow direction of the circulating fluid, and the inlet and outlet of the packed bed are arranged in the flow direction of the fluid circulating through the packed bed. In the simulated moving bed liquid chromatographic separation device configured to intermittently move the position of, the eluent supply line 808 is connected to the bypass line 28 including the three-way automatic switching valve 24 and the automatic opening / closing valve 26, Between any adjacent packed beds Square it is characterized in that the outlet line 36, 40 Prep equipped with automatic switching valves 34 and 38 are connected two systems.

Further, in the above-mentioned apparatus, the primary eluent supply pump 47 and the circulation pump 46 are used by the bypass line 28 provided via the three-way automatic switching valve 24 provided at the outlet side of the eluent supply line 808. Fractionation is performed simultaneously from the purification zone to the adsorption zone and from the desorption zone to the secondary purification zone. Further, the eluent supply line 32 is connected to the raw material supply line 807 via the three-way automatic switching valve 30 so that the raw material and the eluent can be switched and supplied from the raw material supply line 807. 1 shows the state of step 1, FIG. 2 shows the state of step 2, and FIG. 3 shows the state of step 3. The thick solid line shows the portion where the liquid is flowing, and the black valve shows the closed state. The same pipes and solenoid valves as in FIG. 8 are assigned the same numbers and symbols as in FIG. As the automatic switching valve and the automatic opening / closing valve, a solenoid valve or a valve that operates by fluid pressure such as air pressure or hydraulic pressure is used, but in this example, the case of using a solenoid valve is described.

FIG. 4 shows the separation process (operating conditions) in the separation system of the present invention for steps 1 to 3.
The horizontal axis of the graph shows each column constituting the simulated moving bed chromatography, and the vertical axis shows the concentration (g 1 / l) of each component. The steps (steps) 1, 2, and 3 in FIG. 4 show the concentration distribution in the column immediately before the shift to the next step. In FIG. 4, a mixture of three components A, B and C was used as a raw material. In this case, the affinity for the filler (the degree of distribution) is A>B> C. Hereinafter, steps 1 to 3 will be described. Step 1 While supplying the raw material, normal operation of the simulated moving bed is performed to extract the component A from the extract outlet and the component C from the raffinate outlet. As the operating condition, if the separation points are set to the C component and the B component, the raw material is supplied on the basis that the component B is not detected from the extract outlet. In addition, the above-mentioned normal operation is the filling in which the positions of the raw material supply, the teso vent (eluent) supply, the circulating liquid supply, the extract, and the raffinate withdrawal port shown in FIGS. 7, 8 and 9 are endless. This is to move the column in the flow direction of the fluid circulated by the circulation pump 46 in the bed one column by one column at regular intervals. Step 2 By switching the three-way automatic switching valve 30, the raw material supply is stopped, and instead, a liquid (composition / flow rate can be changed for the eluent can be changed) is supplied from the eluent supply line 32 and the raw material supply line 807. The normal operation similar to the above-mentioned operation of the liquid chromatography is performed. In this step, step 1
In the same manner as above, the three components are separated and purified while extracting the A component and the C component from the respective outlets. Step 3 Stop the supply of the liquid (the composition and flow rate of the eluent can be changed) from the raw material supply port, and install it on the three-way automatic switching valve 24 and the on-off valve 26 provided on the eluent pump outlet side, and a new eluent supply line 808. Using the eluent supply pump 47 and the circulation pump 46 through the collected preparative line 28, the primary purification zone to the adsorption zone (ie, zone 1 to zone 2) and the desorption zone to the secondary purification zone (ie, zone 4 to zone 3).
The component B is fractionated in two directions (each fractionation flow rate can be changed). As for the sorting direction, by moving the C component accumulated in the zone 1 to the zone 2 and the B component in the zone 3 to the raw material supply port, the efficiency of the operation of the simulated moving bed in the next step can be improved. Therefore, it is selected, but it is not limited to this. Regarding the collection outlets, as one example, two places were installed between columns 15 and 16, but the number is not limited to this. By repeating these steps, it is possible to achieve the separation of three components (multicomponent that can be regarded as two components) from the mixture.

Further, a preparative chromatography when a sugar mixture having the composition shown in Table 2 was supplied at a sugar concentration of 60 wt% (based on solid content), the simulated moving bed chromatography of the present invention and Japanese Patent Application No. 2-253.
3 from the mixture in the two-stage simulated moving bed chromatograph of 944
An attempt was made to separate the components (G fraction, G2 fraction, G3 <fraction). In addition, G represents glucose.

[0019]

[Table 2]

The results are shown in Tables 3 to 5 (the preparative system, the simulated moving bed system of the present invention, and the conventional two simulated moving bed systems have the same solid content treatment amount per resin (filler). .)

[0021]

[Table 3]

[0022]

[Table 4]

[0023]

[Table 5]

In the separation using the preparative chromatography, as shown in Table 3, the purity of the G component in the G fraction was 69.7%, the recovery rate was 54.3%, and the purity of the G2 component in the G2 fraction. 80.8
%, Recovery rate 51.5%, G3 <G3 in fraction <purity is 9
The product concentration in each fraction was 0.27, 16.15 and 9.76 (g / g).
l) was. On the other hand, in the separation using the simulated moving bed chromatography of the present invention, as shown in Table 4, the purity of the G component in the G fraction was 68.9%, the recovery rate was 82.8%, and the G component in the G2 fraction was
The purity of the two components was 96.5%, the recovery rate was 89.6%, G3 <the G3 <purity in the fraction was 93.5%, the recovery rate was 97.9%, and the product concentration in each fraction was 1.75, 31.
It was 47, 30.92 (g / l).

Further, in the conventional two-stage separation of the simulated moving bed chromatography, as shown in Table 5, the G fraction and G
2. G2 <G3 <fraction obtained after separating G3 <fraction was introduced into the second stage with a sugar concentration of 60 wt% (based on solid content) by a concentrator and introduced into the second stage. Tried to separate.
As a result, the purity of the G component in the G fraction was 68.5%, the recovery rate was 85.1%, the purity of the G2 component in the G2 fraction was 89.8%,
Recovery 89.1%, G3 <G3 in fraction <purity is 92.
3%, the recovery rate was 92.0%, and the product concentrations in the respective fractions were 4.13, 48.3 and 55.7 (g / l). The product concentration of the separated fraction is higher than that of the simulated moving bed chromatographic separation according to the present invention because the components separated in the first step are concentrated by the concentrator. From the above, the system of the present invention combining the simulated moving bed chromatograph and the preparative chromatograph in which the preparative line and the outlet are installed in the conventional simulated moving bed chromatograph is more efficient than the preparative chromatograph, and the conventional system. Compared to the simulated moving bed chromatographic two-step method, the equipment cost is very low and 3 out of 3
The separation of components could be achieved.

[0026]

EXAMPLES Examples of the present invention and comparative examples will be described below. Example 1 A sugar mixture shown in Table 2 was prepared, concentrated with an evaporator to a sugar concentration (solid content basis) of 60 wt%, and introduced into a simulated moving bed liquid chromatograph having the flow shown in FIG. The simulated moving bed liquid chromatographic separation test equipment used consisted of 12 stainless steel columns with jackets (inner diameter 3.67 cm, height 75 cm), and each column had Na-type styrene strong acid cation exchange resin (degree of crosslinking 6%). , Average particle diameter 320 μm, Dowex registered trademark; XHC-306) was slurry-filled in the presence of sodium chloride. Also, the temperature was kept at 60 degrees by circulating hot water in the jacket. The operating conditions of Step 1 to Step 3 were as follows. Operating conditions of step 1 Raw material concentration: 771.6 g / l (specific gravity 1.286
0 wt%) Switching time: 15 minutes / cycle Desorbent flow rate / Feed flow rate = 7.0 Raffinate flow rate / Extract flow rate = 1.286 Circulation flow rate; 30.0 ml / min. As the desorbent (eluent), an aqueous solution containing 1/1000 normal caustic soda was used. Then, this operation was performed until cycle 11. Operating conditions of step 2 Instead of raw material, desorbent (eluent) is cycle 1
Feeded from 2 to 36. The other operating conditions were the same as in step 1. Operating condition of step 3 Using the eluent supply pump and the circulation pump, the flow rate from the lower part of the column 22 to the upper part of the column 16 is 21.33 ml / min.
． , Flow rate from the top of column 11 to the bottom of column 15 32.0 ml / min. Was collected for 30 minutes. This step 1
The composition of each fraction obtained by repeating Step 3 to Step 3 is shown in Table 4.

Comparative Example 1 A Na type styrene strong acid cation exchange resin (crosslinking degree 6%, average particle diameter 320 μm, Dowex registered trademark; XHC-306) was applied to a stainless steel column with a jacket (inner diameter 3.67 cm, height 75 cm). ) Was slurry-filled in the presence of sodium chloride. These columns are connected in series, and the sugar concentration (solid content basis) is 60 wt in advance with an evaporator.
% Of the sugar mixture described in Table 2 was added to SV = 0.2 (l /
h) and LV = 1.8 (m / h). The separation temperature was maintained at 60 degrees by circulating hot water in the jacket. The collection time for one cycle is 112 minutes,
G fraction collection time is 46 minutes (67 to 112 minutes),
The G2 fraction was fractionated for 13 minutes (38 to 51 minutes), and the G3 <fraction was 31 minutes (0 to 31 minutes). Table 3 shows the results of fractionation of each component. Note that 0 minutes is G3
<It is based on the time when the fraction was detected.

Comparative Example 2 In the simulated moving bed chromatograph described in Japanese Patent Application No. 2-253944, the sugar concentration (based on solid content) was 60 wt% in advance with an evaporator.
The concentrated sugar mixture shown in Table 2 was introduced and separated under the following conditions. The equipment consisted of 12 stainless steel columns with jacket (inner diameter 3.67 cm, height 75 cm), and Na type styrene strong acid cation exchange resin (crosslinking degree 6%, average particle diameter 320 μm, Dowex) in the column. The registered trademark; XHC-306) was slurry-filled in the presence of sodium chloride. The operating (operating) conditions were as follows. Operating conditions for simulated moving bed chromatography (one-stage) Raw material concentration: 771.6 g / l (specific gravity 1.286
0 wt%) Separation point; G / G2 <Switching time; 15 minutes / cycle Desorbent flow rate / Feed flow rate = 21.7 Raffinate flow rate / Extract flow rate = 3.67 Circulation flow rate; 33.3 ml / min. As the desorbent (eluent), an aqueous solution containing 1/1000 normal caustic soda was used. The compositions of the extract and raffinate obtained by this operation are shown in Table 6.

[0029]

[Table 6]

Then, the raffinate fraction was treated with a sugar concentration of 60 wt.
After concentration to%, the mixture was introduced into a second simulated moving bed chromatography to separate G2 and G3 <. The operating conditions are shown below. Operating conditions for simulated moving bed chromatography (two-stage) Raw material concentration: 771.6 g / l (specific gravity 1.286
0 wt%) Separation point; G2 / G3 <switching time; 15 minutes / cycle Desorbent flow rate / feed flow rate = 13.8 Raffinate flow rate / Extract flow rate = 1.13 Circulation flow rate; 30.5 ml / min. As the desorbent (eluent), an aqueous solution containing 1/1000 normal caustic soda was used. The compositions of the extract and raffinate obtained by this operation are shown in Table 7. The recovery rate shows the value of the total system.

[0031]

[Table 7]

[0032]

Since the present invention is configured as described above, it has the following effects. (1) A bypass line having one three-way automatic switching valve and one automatic opening / closing valve is connected as a preparative line to the eluent supply line of the conventional simulated moving bed liquid chromatographic separation device, and By providing two outlets equipped with a three-way automatic switching valve between any adjacent columns and combining both functions of simulated moving bed chromatography and preparative chromatography, it is possible to easily perform three-component separation. it can. (2) The configuration added to the conventional simulated moving bed type liquid chromatographic separation device is extremely simple. (3) The device of the present invention is not limited to the food field,
It is applied to the field of chemicals.

[Brief description of drawings]

FIG. 1 is an example of a liquid chromatographic separation device of the present invention,
It is a conceptual explanatory drawing which shows the state of step 1 (process 1).

FIG. 2 is a conceptual explanatory view showing a state of step 2 (step 2) following FIG.

FIG. 3 is a conceptual explanatory diagram showing a state of step 3 (step 3) subsequent to FIG.

FIG. 4 is a graph showing the states of components A, B, and C in the steps (processes) of FIGS. 1 to 3.

FIG. 5 is a schematic diagram of separation by conventional preparative liquid chromatography.

FIG. 6 is a conceptual diagram of two-component separation using a general moving bed.

FIG. 7 is an explanatory diagram showing a general configuration of a simulated moving bed type continuous liquid chromatographic separation device.

FIG. 8 is a conceptual explanatory view showing a state of step 1 in an example of a conventional simulated moving bed type liquid chromatographic separation device.

9 is a conceptual explanatory diagram showing a state of step 2 following FIG. 8. FIG.

10 is a conceptual explanatory diagram showing a state of step 3 following FIG. 9. FIG.

[Explanation of symbols]

 11 Unit packed bed (column) 22 Unit packed bed (column) 24 Three-way automatic switching valve (solenoid valve) 26 Automatic opening / closing valve (solenoid valve) 28 Bypass line 30 Three-way automatic switching valve (solenoid valve) 32 Eluent supply line 34 Three-way Automatic switching valve (solenoid valve) 36 Preparative outlet line 38 Three-way automatic switching valve (solenoid valve) 40 Preparative outlet line 41 Raw material liquid pump 43 Extract pump 45 Raffinate pump 46 Circulation pump 47 Eluent pump 48 Back pressure valve 807 Raw material supply line 808 Eluent supply line

Front page continuation (72) Inventor Tatsuya Imura 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Akashi factory

Claims (3)

[Claims] 1. Four or more unit packed beds (11) to (22) packed with a solid sorbent and arranged in series.
And a circulating pump (46) circulates the fluid in one direction into an endless packed bed in which the front end and the rear end of these unit packed beds are connected by a flow path to form an endless structure. The raw material liquid and the eluent are introduced into the flowing fluid, and at the same time,
Fluid that is rich in non-sorbate and fluid that is rich in sorbate is extracted from the unit packed bed and is circulated through the inlet and outlet of the above-mentioned fluid that is introduced into the packed bed or extracted from the packed bed. Simulated moving beds which are arranged alternately along the flow direction of the packed bed and are configured to intermittently move the positions of the inlet and the outlet of the packed bed in the flow direction of the fluid circulating in the packed bed. In a liquid chromatographic separation device, a three-way automatic switching valve (24) is connected to the eluent supply line (808).
And a bypass line (2 with an automatic on-off valve (26)
8), and a three-way automatic switching valve (34) between any adjacent packed beds,
Preparative exit lines (36), (40) with (38)
A liquid chromatographic separation device for separating three components, characterized in that two systems are connected. 2. An eluent supply pump (47) and a circulation pump (46) by a bypass line (28) provided through a three-way automatic switching valve (24) provided at the outlet side of the eluent supply line (808). The liquid chromatographic separation apparatus for separating three components according to claim 1, wherein the preparative zone is used for simultaneous separation from the adsorption zone, the desorption zone and the secondary purification zone in two directions. 3. An eluent supply line (32) is provided to the raw material supply line (807) through a three-way automatic switching valve (30) so that the raw material and the eluent can be switched and supplied from the raw material supply line (807). The connection is made according to claim 1.
Alternatively, the three-component liquid chromatographic separation device according to item 2.