WO1997020608A1 - Separateur a lit quasi mobile - Google Patents
Separateur a lit quasi mobile Download PDFInfo
- Publication number
- WO1997020608A1 WO1997020608A1 PCT/JP1996/003500 JP9603500W WO9720608A1 WO 1997020608 A1 WO1997020608 A1 WO 1997020608A1 JP 9603500 W JP9603500 W JP 9603500W WO 9720608 A1 WO9720608 A1 WO 9720608A1
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- Prior art keywords
- concentration
- component
- extract
- moving bed
- outlet
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/02—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor with moving adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
- B01D15/1814—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns recycling of the fraction to be distributed
- B01D15/1821—Simulated moving beds
- B01D15/1828—Simulated moving beds characterized by process features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
- B01D15/1814—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns recycling of the fraction to be distributed
- B01D15/1821—Simulated moving beds
- B01D15/1842—Simulated moving beds characterized by apparatus features
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/38—Flow patterns
- G01N30/44—Flow patterns using recycling of the fraction to be distributed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/38—Flow patterns
- G01N30/46—Flow patterns using more than one column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2215/00—Separating processes involving the treatment of liquids with adsorbents
- B01D2215/02—Separating processes involving the treatment of liquids with adsorbents with moving adsorbents
- B01D2215/023—Simulated moving beds
Definitions
- the present invention relates to a simulated moving bed type separation apparatus, and more particularly, to a simulated moving bed separation apparatus capable of detecting in real time the entire concentration distribution formed in a simulated moving bed, or a simulated moving bed separation apparatus in real time. It is possible to grasp the operating state of the type separation device, and to produce no rejects, to reduce the sample loss, to increase the recovery efficiency, and to separate each component from the mixture containing multiple components with high productivity.
- a plurality of columns each containing a packing material are connected in series, and the front and rear ends of the columns are connected to a fluid passage (or a fluid passage).
- the raw material-containing solution containing the raw material which is a mixture containing the components to be separated, is eluted into a packed bed in which the liquid is unidirectionally connected by connecting them, and the liquid is flowing in one direction. It consists of introducing a liquid and simultaneously extracting a liquid containing separated components and a liquid containing other components.
- the packed bed in the simulated moving bed type separation apparatus has an eluent inlet, a liquid containing a substance that is easily adsorbed (this liquid is also referred to as an extract. This liquid is an adsorbate or a strongly adsorbate).
- This liquid is an adsorbate or a strongly adsorbate).
- Withdrawal port raw material-containing solution inlet, liquid containing a substance that is hardly adsorbed (this liquid is also called raffinate.
- This liquid is a non-adsorbent or a weak adsorbate-rich solution.
- these inlets and outlets are connected to the fluid while maintaining their relative positions in the circulation flow path. It is moved intermittently in the direction of flow.
- Such conventional industrial simulated moving-bed separators are based on the system developed by UOP (Universal Oil, Product and Kampany) in 1967, and are now being upgraded by various engineering companies. Simulated moving bed type separation device Is being developed. As a typical example, a plant example for separating fructose / grape and the like is known.
- Control of such a system usually involves accurately measuring the flow rate in each pump incorporated in the circulating fluid passage or each zone formed in the circulating fluid passage in the simulated moving bed separator, and analyzing the data. It is common practice to perform operation control manually by analyzing computer data and presenting flow control data to the operator.
- a simulated moving bed separator using HPLC-level packing material has a system pressure of 50 kg Z c In general, it will be more than m2. It is known that in such a simulated moving bed type separator, productivity is improved by shortening the cycle time and increasing the flow velocity by the pump.
- Japanese Patent Application Laid-Open No. Hei 4-131104 discloses a "simulated moving bed type chromatograph".
- the separation method of (1) by measuring the concentration of the fluid component at one or both of the fluid outlets to shorten or extend the time for intermittently moving the supply port and the outlet, the predetermined component purity can be reduced.
- a control method of a simulated moving bed method characterized by adjustment and maintenance ” is disclosed.
- the pipes from the supply port and the outlet to the concentration detector are usually long, so although the concentration is detected at the supply or the outlet, a time lag actually occurs and the It does not provide accurate concentration detection.
- a time lag actually occurs and the It does not provide accurate concentration detection.
- diffusion or convection of components occurs in the extract or raffinate flowing in the piping, and there is a problem that accurate concentration detection cannot be performed in this regard.
- the conventional simulated moving bed type chromatographic separation has a problem that the concentration and optical purity that change over time cannot be accurately grasped, and the state of the separation cannot be quickly determined.
- the operating conditions such as the time interval for intermittently moving the inlet and the outlet, the flow rate of the circulating fluid, the temperature, etc. are set to optimal conditions. This makes it difficult to perform efficient chromatographic separation.
- An object of the present invention is to monitor the concentration pattern (purity pattern) of each zone in real time even under a high-pressure operating condition, to easily understand the operating condition, and to perform the operation for a long time. It is an object of the present invention to provide a simulated moving bed type separation apparatus which is capable of operating with stable quality over a long period of time and incorporates an automatic control system.
- Another object of the present invention is to provide a simulated moving bed type separation apparatus which can achieve the technical effects of the present invention. Disclosure of the invention
- the present invention is a.
- a plurality of packed beds containing the separation filler are connected endlessly to form a circulating fluid flow path in which fluid can be forcedly circulated in one direction.
- a raffinate discharge port for extracting a solution rich in non-adsorbate or weakly adsorbate are provided in this order in the direction of fluid flow, and the respective inlets and outlets are intermittently moved.
- a simulated moving bed type separation device characterized in that a concentration detector is provided in the circulating fluid flow path,
- a concentration measuring means for measuring the concentration of the component in the extract extracted from the extract outlet and the raffinate outlet.
- a simulated moving bed type separation apparatus further comprising one or both of concentration measuring means for measuring the concentration of the component in the roughened rice,
- a plurality of packed beds containing the packing material for separation are connected endlessly to form a circulating fluid flow path in which fluid can be forcedly circulated in one direction, and in this circulating fluid flow path,
- An eluent inlet for introducing an eluent
- an extract outlet for extracting a solution rich in adsorbate or strongly adsorbate
- a raw material inlet for introducing a raw material solution containing a mixture of components to be separated.
- a simulated moving bed type in which a raffinate outlet for extracting a solution rich in non-adsorbate or weakly adsorbate is provided in this order in the direction of fluid flow, and each inlet and outlet is intermittently moved.
- a high pressure-resistant concentration detector disposed in the circulating fluid flow path and a computer interlocked therewith, wherein operating conditions are adjusted according to a concentration fluctuation of a target component caused by a fluctuation factor in the simulated moving bed type separation apparatus.
- a pseudo moving floor type separation device characterized in that it can be automatically corrected,
- a concentration measuring means for measuring the concentration of the component in the extract extracted from the extract outlet and the rough rice outlet.
- a simulated moving bed type separation apparatus comprising a component concentration measuring means for measuring the concentration of the component:
- the concentration measuring means according to the above (4) is characterized in that
- the simulated moving bed type separation apparatus according to the above (4) which is a plurality of types of concentration detectors for measuring the concentration of a desired component and an undesired component in kiss tract or rough rice,
- the concentration measuring means according to (4) is a type of concentration detector for measuring the concentration of a desired component and an undesired component in an extract or rough rice sampled at predetermined time intervals.
- FIG. 1 is an explanatory view showing one embodiment of the simulated moving bed type separation apparatus of the present invention.
- FIG. 2 is an explanatory view showing a UV meter which is a concentration detector provided in a pipe which communicates a column forming part of a circulating fluid flow path with a power ram in one embodiment of the present invention.
- FIG. 3 is an explanatory view showing a component concentration measuring means for analyzing a component in an extract extracted from an extract outlet according to one embodiment of the present invention.
- FIG. 4 is an explanatory diagram showing the operation of the component concentration measuring means.
- Fig. 5 is an explanatory diagram showing the state in which the components in the extract extracted from the extract extraction pipe are separated by the separation means.
- the axis with respect to the time axis indicates the intensity, and the concentration is measured by the concentration detector. Indicates the magnitude of the output electric signal.
- Fig. 6 is an explanatory view showing a state in which the components in the rough rice extracted from the rough rice extraction pipe are separated by separation means.
- the axis with respect to the time axis indicates intensity
- the concentration detector Indicates the magnitude of the electrical signal output by
- FIG. 7 is an explanatory view schematically showing a concentration pattern formed in eight columns connected in series so as to form a circulating fluid flow path.
- FIG. 8 is an imaginary explanatory view showing a solute concentration distribution in each zone formed by a column in the simulated moving bed type separation apparatus according to one embodiment of the present invention.
- FIG. 9 schematically shows how the concentration pattern formed in eight force rams connected in series to form a circulating fluid flow path changes every time the inlet and outlet are switched.
- FIG. 10 is an explanatory diagram showing a concentration pattern that changes with time from the moment when the rough outlet is switched.
- FIG. 11 is an explanatory view showing various patterns of the density which change with time from the moment when the rough rice outlet is switched.
- FIG. 12 is an explanatory diagram showing various patterns of concentration that change with time from the moment when the extract outlet is switched.
- a simulated moving bed type separation apparatus includes a circulating fluid flow path, and a c- circulating fluid flow path having a concentration detector.
- a simulated moving bed type separation apparatus is characterized in that a plurality of packed beds containing separation fillers are connected endlessly, whereby a circulating fluid flow capable of forcibly circulating a fluid in one direction inside.
- a circulating fluid flow capable of forcibly circulating a fluid in one direction inside.
- the packed bed containing the packing material for separation is usually called a column.
- the industrial circulating fluid flow path is formed by connecting a plurality of columns containing the packing material for separation endlessly through pipes such as pipes.
- Fluid forced circulation means is provided in the circulating fluid flow path using the column, so that the fluid can be forcibly circulated in one direction in the circulating fluid flow path.
- the fluid forced circulation means may be of any structure, type, etc., as long as the fluid can be forcibly circulated in one direction.
- the fluid forced circulation means may be provided in a circulating fluid flow path. Pumps can be mentioned.
- a combination of pressure regulating valves that can circulate the fluid by adjusting the pressure balance can be used as the fluid forced circulation means.
- the eluent (desorbed liquid or desorbent) is provided along the flow direction of the fluid flowing in the circulating fluid flow path in the pipe connecting the columns forming the circulating fluid flow path.
- An extract outlet for extracting a solution rich in adsorbate or strongly adsorbate also referred to as extract
- an extract outlet for the component to be separated is provided here. They are provided in order.
- the eluent inlet, extract outlet, raw material solution inlet, and rough rice outlet are arranged in this order without changing their relative positions. It is formed so as to be switched at regular intervals along the flow direction of the circulating fluid.
- switching means such as a rotary one valve or an on-off opening / closing valve is employed.
- a desorption zone is formed in the packed bed from the eluent inlet to the extract outlet, and in the packed bed from the extract outlet to the raw material solution inlet.
- a concentrated zone is formed, a purification zone is formed in the packed bed from the raw material solution inlet to the raffinate outlet, and an adsorption zone is formed in the packed bed from the raffinate outlet to the eluent inlet.
- the eluent introduced from the eluent inlet flows through the packed bed together with the fluid, and when the eluent comes into contact with the separation packing material, the adsorbate component which has been adsorbed to the separation packing material up to that point (It is a component that is easily adsorbed and is also called a strongly adsorbed component.) Is desorbed from the filler, and the adsorbate component or the strongly adsorbed component is extracted as an extract from the extract outlet.
- the concentration of the adsorbate component in the fluid in the zone immediately after the eluent inlet is substantially close to 0, and the concentration of the adsorbate component in the fluid increases in this zone along the direction of flow of the fluid. I will do it.
- the non-adsorbate component (a component that is difficult to adsorb or a non-adsorbent component, also referred to as a weakly adsorbed component) in the raw material solution introduced from the raw material solution inlet is used as a separation filler.
- the adsorbate component is desorbed from the filler.
- the non-adsorbate components in the raw material solution are adsorbed by the separation filler, while the adsorbate components are separated by the separation filler.
- the concentration of the adsorbate component in the fluid changes from rising to decreasing along the direction of fluid flow, while the concentration of the non-adsorbate component in the fluid starts to increase.
- adsorbate components in the raw material solution introduced from the raw material solution inlet are adsorbed by the separation filler, and non-adsorbate components adsorbed by the separation filler are desorbed.
- the adsorbate components in the raw material liquid introduced from the raw material solution inlet are adsorbed, while the non-adsorbate components are desorbed.
- the concentration of the adsorbate component in the fluid approaches substantially zero and the concentration of the non-adsorbate component increases in the region from the raw material solution inlet to the rough rice outlet, and the raffinate A liquid containing a high concentration of non-adsorbate components will be extracted from the extraction port.
- the non-adsorbate components are completely desorbed, and the separation packing material adsorbs the adsorbate components, while the eluent containing substantially no non-adsorbate components or adsorbate components flows to the recycling line. Discharged. In this adsorption zone, the concentration of non-adsorbate components in the fluid decreases to substantially zero.
- the column contains a separation packing that can adsorb the components to be separated.
- Preferred examples of the separating filler include fillers for liquid chromatogram (LC) such as normal-phase fillers and reversed-phase fillers, and more preferred are HPLC fillers. it can.
- LC liquid chromatogram
- suitable fillers for separation for example, various known fillers for separating isomers can be used.
- the filler for separating optical isomers include a filler for optical resolution using an optically active polymer compound and a low molecular compound having optical resolution ability.
- the optically active polymer compound include polysaccharide derivatives (eg, esters of cellulose pamylose or carbamates). ), A filler in which a polyacrylate derivative or a polyamide derivative is supported on silica gel, or a bead-type filler obtained by granulating the polymer itself without using a silylation gel, and a cross-linking obtained by further cross-linking the polymer. Mold fillers and the like can be mentioned.
- Examples of the low-molecular compound having optical resolution ability include an amino acid or a derivative thereof, a crown ether or a derivative thereof, and a cyclodextrin or a derivative thereof. These low-molecular compounds are usually used by being supported on inorganic carriers such as silica gel, alumina, zirconia, titanium oxide, gaylate, silica earth, and organic carriers such as polyurethane, polystyrene, and polyacrylic acid derivatives. You.
- CHIRALCE 0B registered trademark
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- the average particle size of the packing material for separation packed in the column varies depending on the type of component to be separated, the volume flow rate of the solvent flowing through each unit ram, etc. It is usually 1 to 100 m, preferably 2 to 50 ⁇ m. However, if the pressure loss in the column forming the simulated moving bed is to be kept small, it is desirable to adjust the average particle size of the packing for separation to 10 to 50 ⁇ m. When the average particle size of the separation filler is within the above range, pressure loss in the simulated moving bed can be reduced, and for example, can be suppressed to 50 kgf / cm 2 or less. On the other hand, the larger the average particle size of the separation filler, the lower the theoretical number of adsorption stages. Therefore, the average particle size of the separating filler is usually 15 to 75 m, only considering that a practical theoretical plate number is achieved.
- the eluent supplied to the circulating fluid flow path includes, for example, alcohols such as methanol, ethanol, and isopropanol; hydrocarbons such as pentane, hexane, and heptane; and various organic solvents, and mixtures thereof. Examples thereof include a solution, a mixture of a highly polar organic solvent such as methanol and acetonitrile with water and a buffer, and the like.
- This eluent can be employed as a normal phase mobile phase or a reverse phase mobile phase. Which eluent is preferred depends on the component to be separated Alternatively, it is appropriately determined according to the type of the compound.
- the eluent may contain a basic substance such as getylamine or an acidic compound such as acetic acid as an additive, and when these additives are contained in the eluent, the separation is improved. be able to.
- the raw material solution supplied to the circulating fluid flow path is not particularly limited as long as it is a multi-component mixture such as a binary mixture having a solute that needs to be separated.
- a multi-component mixture such as a binary mixture having a solute that needs to be separated.
- medicines, agricultural chemicals, foods, feeds, flavors, etc. examples include various compounds used in the field of pharmaceuticals such as pharmaceutical salidimide, organophosphorus pesticide EPN, chemical seasoning monosodium glutamate, and flavorant menthol.
- optically active alcohols, optically active esters and the like are examples of an optical isomer, a positional isomer, or a mixture of a necessary component and an unnecessary component from a certain viewpoint.
- the solute may be a multi-component mixture of a plurality of components to be separated, for example, a three-component or a four-component.
- the mixture in order to separate the required one component using the simulated moving bed type separation apparatus of the present invention, the mixture is separated into a group containing the required one component and a group not containing the required component.
- the group containing the required one component is separated into a small group containing the required one component and another small group, and the operation of dividing the group into the two groups is repeated a predetermined number of times. Can separate necessary components.
- a batch operation using a separation device other than the simulated moving bed type separation device and the simulated moving bed type separation device of the present invention can be used to separate the required one component from the multi-component mixture.
- At least one concentration detector is provided in the circulating fluid channel.
- a concentration detector is a means capable of detecting the concentration of a solute in a solution flowing in a circulating fluid channel. Note that the concept of concentration is generally a ratio indicating the abundance of a specific substance in an object. Therefore, depending on the situation or as the case may be, the word concentration can be understood by replacing the word purity.
- concentration detector examples include a concentration detector using electromagnetic waves, an acoustic concentration detector, an electric concentration detector, a magnetic concentration detector, and the like. Specifically, near-ultraviolet rays, ultraviolet rays, Concentration detector using visible light, infrared light, far infrared light, etc., differential refractometer, turbidity meter, concentration detector using ultrasonic wave, concentration detector using ion electrode, pH meter And a concentration detector using a polarimeter. Which concentration detector is used is determined according to the type of solute.
- a concentration detector for example, when the solute has a specific absorption pattern for electromagnetic waves, various types of detectors such as a UV detector, an IR detector, a fluorescence detector, a color sensor, and an LED detector are used. It can be adopted according to the measured object.
- a PH meter, a conductivity detector, an electrochemical detector, or the like can be used.
- solutes having no other characteristics such as sugars and lipids which cannot be detected by the above-described detector, for example, a refractometer, an ultrasonic detector, a turbidity meter, etc. are used. Is good.
- a high withstand pressure capable of withstanding a pressure of at least 50 kg Z cmz. is preferably a sex concentration detector, particularly low with 1 0 0 kg / cm 2 of pressure, it further is the concentration detector high withstand pressure property that can withstand 1 OOSOO kg Z c ir ⁇ pressure Is desirable.
- the location where the concentration detector is provided may be in a column, but is preferably provided in a pipe connecting the columns. Further, the number of concentration detectors may be plural. Generally speaking, as the number of installed concentration detectors increases, the concentration distribution of the solution circulating in the circulating fluid flow path can be measured in a shorter time, and the real-time concentration can be easily grasped. Can be. However, industrially, one, two or three concentration detectors are usually provided in the circulating fluid flow path, especially in the piping between the columns.
- the concentration detector installed between columns may function as a purity detector in some cases.
- a purity detector in some cases.
- the optical isomers when separating optical isomers using the simulated moving bed type separation apparatus according to the present invention, when a polarimeter is installed as a concentration detector between columns, the optical isomers have different optical rotations from each other. By having this, the purity of each optical isomer in each column can be calculated.
- a UV-multi-wavelength detector is used as the concentration detector installed between columns, if the UV pattern of the compound to be separated is different, the purity of each can be calculated from two or more absorption intensities.
- This UV multi-wavelength detector is an example of a detector that can detect the concentration or purity of multiple solutes with one type of detector.
- concentration detectors installed between columns are more than one, these concentration detectors must be installed close to each other, and if the types of concentration detectors are different, the data must be analyzed. Can be used to calculate the purity. For example, when only the required component compounds have special absorption such as fluorescence, the overall concentration was measured with one concentration detector and the other concentration was measured with a fluorescence detector. It is also possible to calculate the concentration of the required component from the fluorescence intensity and thereby calculate the purity of the required component. it can.
- concentration detector In addition to the concentration detector being installed between the columns, a rough outlet, an extract outlet, or a recycle line (this may be the first column and the last column) If a concentration detector is further provided in the flow path communicating with the column, the accuracy and reliability of the control of the operating conditions can be improved.
- concentration detectors to be installed in which outlet or recycling line is determined by the difficulty of separation and cost.
- the detection signal output from the concentration detector is output to the arithmetic and control unit.
- the concentration of the solute is calculated based on the data output from the concentration detector. For example, if one concentration detector is installed in the circulating fluid flow path, the concentration detector detects the solute concentration every time the position of each inlet and outlet is switched at predetermined intervals. The data is corrected every cycle of switching
- the time required for correction is shortened, and the concentration distribution (total solute concentration, target compound concentration, or undesired substance concentration) in each zone (each column) is reduced.
- concentration distribution total solute concentration, target compound concentration, or undesired substance concentration in each zone (each column) is reduced.
- the advantage is that information can be obtained in real time. Furthermore, more specific material balances can be immediately known from the concentration detectors provided in the raffinate, extract and recycle lines.
- such information is processed by the arithmetic and control unit and displayed on a display device such as a CRT.
- a display device such as a CRT.
- not only the change in the concentration is displayed on the display device, but also the switching time of the step time, the flow rate of the liquid in the circulation channel, the temperature of the liquid, the pressure in the column, and the temperature. Display the information to minimize these fluctuations and set these values to the specified set values, or automatically change the operating conditions to the desired concentration pattern in each column or zone. be able to.
- An ordinary computer can be mentioned as an organization incorporating the arithmetic control unit, the display device, and the like.
- the computer includes a central processing unit and a storage device, and can easily execute the processing in the arithmetic control unit.
- the arithmetic and control unit When changing the operating conditions, the arithmetic and control unit usually sends three levels of information to the operator while monitoring the operating conditions of several cycles, namely, normal, caution, and hairpin.
- the interaction between the packing material for separation and the raw material solution and the interaction between various compounds in the raw material solution are caused by the high concentration of the raw material solution remaining in the column or being placed in a transient equilibrium state. It is thought that the interaction between the two occurs intricately.
- the method of controlling the operation of the simulated moving bed type separation apparatus also requires various methods and further condition ranges.
- a set point is set for a concentration (purity) corresponding to the variety of zone fluctuation due to the raw material solution, and each control factor such as a step time and a flow rate of the liquid in the circulation flow path are set.
- the fluctuation range is set for the temperature in the column, the pressure in the column, and the like. According to the study of the inventor, for example, based on the results of long-term operation using a separation filler having a particle diameter of 20 ⁇ , by conducting a long-term operation to some extent and analyzing the factors of variation, the set points and control factors were determined. It has been found that the range of fluctuation is limited.
- a command signal for controlling the operating condition is output according to the calculation result.
- the command signal includes a command signal for changing a flow rate of each pump, a command signal for changing a column temperature (for example, a temperature of a column and a temperature of a solution to be introduced into the circulation flow path, for example, a temperature of a raw material solution), Signals for changing the switching time (step time) between the introduction and withdrawal of the fluid into and from the column are given.
- the preferred simulated moving bed type separation apparatus of the present invention further includes a concentration measuring means.
- the concentration measuring means is designed to measure the concentration and purity of the component in the solution in one or both of the extract and the raffinate.
- such a concentration measuring means is a component concentration for measuring the concentration and purity of a solute in a predetermined amount of a sample collected by a sampling means from an extract extracted from an extract outlet. It can be formed by measuring means.
- the method for measuring the concentration of raffinate is as follows: It can be formed by a component concentration measuring means for measuring the concentration and purity of a solute in a predetermined amount of a sample collected by a sampling means from a raffinate withdrawn from an outlet.
- the concentration measuring means may be provided for only one of the extract and rough rice. However, it is necessary to accurately grasp the operating state of the simulated moving bed type separation apparatus and perform efficient operation. It is preferable to provide this concentration measuring means for both extract and rough rice.
- any means can be used as long as it can extract a predetermined amount of sample liquid from the extract extracted from the extract extraction port or the rough rice extracted from the rough rice extraction port.
- the sampling means include, for example, a pipe connected to an outlet of an extra tart or a outlet of rough rice, a six-way switching valve connected to the pipe, and a pipe connected to the six-way switching valve.
- a sample tube and fluid extruding means having a pump coupled to the six-way switching valve. In such a sampling means, by switching the six-way switching valve, a predetermined amount of the extract or rough extract is taken into the sampling tube from the extract or raffinate outlet, and the six-way switching valve is switched. A predetermined amount of extract or rough rice collected in a sample tube can be extruded.
- the component concentration measuring means is a means for measuring the concentration and purity of a solute in a sample sampled from each of extract and rough rice, or one of them.
- Extracts and rough rice may contain only one type of solute, but under industrial conditions, multiple components are always contained as a solute in extract or rough rice .
- a raw material solution containing a mixture of optical isomers for example, a D-form and an L-form
- extract the extract as a D-form containing solution from the extract outlet and extract the L-form from the rough rice outlet.
- the extract contains impurities and D-form as solutes.
- the solute in the sample is separated into necessary components and unnecessary components, and the concentration of each separated component is measured to determine the required component (sometimes called the target component).
- the concentration and purity of the required components can be measured, or (2) focusing on the specific characteristics of the required components without physically separating the solute in the sample into the required and unnecessary components.
- a separating means is employed to physically separate a plurality of solutes in the sample. Examples of the separation means include separation devices such as a column separation device, an HPLC separation device, a GC separation device, an IR separation device, and a capillary electrophoresis separation device.
- these separation means are linked to the raffinate outlet and the extract outlet, and are used for measuring the concentration and the purity of the target component.
- these fillers used in the simulated moving bed separator of the present invention which have a small particle size, for example 1 to 10 m, which can be separated in a short time.
- a high-performance HPLC column separation device packed with is preferred.
- the concentration of each solute separated by the separation device is measured by a concentration detector similar to the concentration detector arranged in the circulation fluid flow path.
- the concentration detector include a concentration detector using electromagnetic waves, an acoustic concentration detector, an electric concentration detector, a magnetic concentration detector, and the like.
- near-ultraviolet light, ultraviolet light, and visible light Concentration detectors using electromagnetic waves such as light rays, infrared rays, far-infrared rays, differential refractometers, turbidimeters, concentration detectors using ultrasonic waves, concentration detectors using ion electrodes, and concentrations using pH meters
- the detector include a concentration detector using a polarimeter and the like. Which concentration detector to use depends on the type of solute.
- the separation means that physically separates the solute is not used as the component concentration measurement means, a combination of multiple types of concentration detectors or a type of concentration that can measure the concentrations of multiple solutes at once can be used.
- a detector is employed. In the case of a combination of multiple concentration detectors, one concentration detector measures the concentration of a specific solute and the other concentration detector measures the concentration of another solute. In such cases, the concentration detector measures the concentration of multiple solutes.
- a polarimeter can be mentioned as a preferred concentration detector.
- concentration detectors for example, combining an infrared spectrophotometer and an ultraviolet spectrophotometer, measuring the concentration of a specific component with an infrared spectrophotometer, and measuring the concentration of another specific component Purity can be determined by measuring the concentration with an infrared spectrophotometer and an ultraviolet spectrophotometer.
- Data on the concentration of the specific component (purity in some cases) measured by the component concentration measuring means is output to the arithmetic and control unit.
- the arithmetic and control unit determines the operation control content of the simulated moving bed type separation device based on the density data output from the density detector and the density data output from the density measuring means.
- the control by the arithmetic and control unit based on the concentration data output from the concentration detector installed in the circulation flow path and the concentration data output from the concentration measuring means, and the above-described concentration data output from the concentration detector It is different from the control by the arithmetic control unit based on this.
- the arithmetic and control unit monitors the density data output from the density detector. Then, for example, the concentration of the specific component determined by the concentration data output from the concentration detector is measured over time, and the concentration at the time when the extraction port of the extract or rough rice is switched (for each step time) is determined. Monitor zone changes by setting the time from the base concentration to a certain threshold as the base. In general, the concentration is close to 0 at the time of switching on the side of the raffinate outlet, and the concentration increases with the passage of time, and the concentration becomes highest immediately before switching.
- the concentration is maximum at the time of switching, and decreases with time.
- the arithmetic and control means issues a control command as shown in Table 1 for the raffinate.
- the control commands as shown in Table 2 can be output.
- those commonly used are those that change the flow velocity.
- time until the temperature reaches the ⁇ value (set point) is a preset time.
- the value of this set point differs depending on the target substance, but the correlation between the purity and concentration of the components in the raffinate and the extract and the correlation between the concentration (purity) pattern in the circulating fluid flow path is examined. It can be determined by analysis.
- the threshold value for “Purity has reached a predetermined threshold value” is a preset value, and depends on the type of target to be separated and the scale of the simulated moving bed type separation device. It is determined appropriately according to the situation. Control of rough fin
- I ⁇ Rfl is not pure.
- nw! n is K 1 ⁇ to increase the flow rate of the desorber pump ⁇
- the display means capable of displaying the concentration distribution of the predetermined component in the fluid flowing through the circulation flow path, which is grasped by the arithmetic and control unit, and displaying the purity. It is convenient to have
- Examples of the display means include a printer and a CRT.
- the concentration distribution in the circulation channel can be displayed as a graph on the CRT display screen, the situation can be easily grasped visually, which is convenient.
- a simulated moving bed type separation apparatus 1 has first to eighth columns (also referred to as unit packed beds) 2a to 2h.
- Each column has its inlet connected to the outlet of the adjacent column by a pipe, and its outlet connected to the inlet of the adjacent power ram by a pipe to form a circulating fluid flow path that is connected endlessly as a whole.
- the circulation fluid flow path includes a recycling bomb for forcibly circulating the fluid, an eluent introduction pipe for introducing the eluent, an extract extraction pipe for extracting the extract, and a raw material solution for introducing the raw material solution (feed).
- An inlet pipe and a rough rice outlet pipe for extracting rough rice are installed, and these inlet pipes and outlet pipes are switched every predetermined column for each column.
- the simulated moving bed type separation device 1 shown in FIG. 1 shows a switching state at a certain point.
- the outlet of the eighth column 2h and the inlet of the first column 2a are connected by the pipe 3.
- the fluid is forcibly circulated from the eighth column 2h to the first column 2a in the circulating fluid flow path.
- Recycle pump P5 is installed.
- a recycle line is a fluid flow path that runs from the outlet of the end column that forms the adsorption zone to the inlet of the tip column that forms the desorption zone.
- the eluent (desorbent) in the desorber tank 4 is supplied to the desorber pump P1.
- the eluent introduction pipe 5 which is introduced into the recycle line 3a via is connected.
- the circulating fluid flow path is provided with an eluent introduction port switching means (not shown).
- the eluent introduction port in the eluent introduction pipe 5 is connected to the first column 2 by the eluent introduction port switching means. It switches from the inlet of a to the inlet of the second column 2b, and from the inlet of the second column 2 to the inlet of the third column 2c at predetermined intervals.
- the eluent inlet switching means is formed by a rotary valve in this embodiment.
- piping 3 connecting the outlet of the second column 2b and the inlet of the third column 2c, and connecting the outlet of the fifth column 2e and the inlet of the sixth column 2 ⁇ Concentration detectors are installed in the piping 3 and the piping 3 from the outlet of the 8th column 2h to the recycle pump P5, respectively.
- a first UV detector UVD 1 is disposed in the pipe 3 as a concentration detector.
- the first UV detector UVD1 outputs a detection signal, which is an electric signal, to the arithmetic and control unit CMP (see FIG. 1).
- the fluid flowing through the pipe 3 is irradiated with ultraviolet light of a specific wavelength through a quartz cell or the like, and the attenuation of the amount of transmitted light of a specific wavelength corresponding to the concentration of a specific component, for example, a weakly adsorbed component, is detected.
- the first UV detector UVD 1 is not limited in its structure, type, model, etc., for example, a known liquid chromatograph. A UV detector or the like for torography can be suitably used.
- an extract extraction pipe 7 is connected to the pipe 3 connecting the outlet of the third column 2c and the inlet of the fourth column 2d, and the extraction pipe 7 is connected to the extract extraction pipe 7.
- the extracted extract is sent to an extract tank 8 via an extract extraction pump P4.
- the circulating fluid flow path is provided with an extract outlet switching means (not shown), which connects the extract extraction pipe 7 to the pipe 3 by the third column. 2 From the pipe 3 from the outlet of c to the inlet of the fourth column 2d, to the pipe 3 from the outlet of the fourth column 2d to the inlet of the fifth column 2e so that they are switched in sequence at predetermined intervals. I'm sorry.
- the extract outlet switching means is formed by a rotary valve in this embodiment.
- the concentration of the target component in the extract is passed through a six-way switching valve 13 (see FIG. 3).
- a measurement system 10 is provided.
- the target component concentration measuring system 10 is a component concentration measuring means in the present invention for measuring the concentration of a necessary component in an extract.
- the target component concentration system 10 is, as shown in FIG. 3, a separation unit for separating components in the extract collected by the sampling unit 11.
- the column 12 is provided with a second UV detector UVD 2 which is a concentration measuring means for measuring the concentration of each component in the extract.
- the sampling means 11 includes a pipe 9 through which the extract discharged from the extract extraction pump P 4 flows, a six-way switching valve 13 connected to the pipe 9, and a six-way switching valve 13. And a pump 15 connected to the six-way switching valve 13.
- the six-way switching valve 13 is switched so that the pipe 9, the six-way switching valve 13, and the sample pipe 14 are communicated.
- the extract flowing through the extract extraction tube 7 is loaded into the sample tube 14.
- the hexagonal switching valve 13 is switched, and the extract in the sample tube 14 is pushed to the first separation force ram 15 by the pump 15.
- the first separation column 12 is loaded with a separation filler suitable for separating a specific component in the extract, and the preferred separation filler is usually the first to eighth columns 2a to 2h.
- the same separation filler as that used for the above can be employed.
- the target component in the extract (which is a necessary component and has adsorptive or strong adsorptive properties) is obtained. Separated into non-target components (unnecessary components, weakly adsorbing or non-adsorbing). Unwanted components in the extract are separated first, followed by the required components.
- the second UV detector UVD 2 can irradiate each component separated from the extract with UV light and output an electric signal corresponding to the concentration of each component (necessary component and unnecessary component). Has functions.
- a raw material solution is supplied to a pipe 3 that communicates an outlet of a fourth column 2d and an inlet of a fifth column 2e.
- a raw material solution introducing pipe 17 for introducing a raw material solution is connected from a feed tank 16 for storage via a feed pump P2.
- the circulating fluid flow path is provided with a raw material solution introduction port switching means (not shown), and the connection of the raw material solution introduction pipe 17 to the pipe 3 is performed by the raw material solution introduction port switching means. From the pipe 3 from the outlet of the fourth column 2d and the inlet of the fifth column 2e to the pipe 3 from the outlet of the fifth column 2e to the inlet of the sixth column 2f, in order, at regular intervals It is changing.
- This raw material solution inlet switching means is formed by a rotary valve in this embodiment.
- the pipe 3 connecting the outlet of the 6th column 2f and the inlet of the 7th column 2g is connected with a rough rice extraction pipe 18 and a raffinate extraction pipe 18 Is extracted from the rough rice through the rough extraction pump P 3 Then, it is sent to the raffinette tank 19.
- the circulating fluid flow path is provided with a rough-inlet outlet switching means (not shown), which connects the rough-in outlet pipe 18 to the pipe 3. From the pipe 3 from the outlet of the 6th column 2f to the inlet of the 7th column 2g, and from the outlet of the 7th column 2g to the pipe 3 from the 8th column 2h to the pipe 3, in order, every predetermined time It is designed to switch.
- the rough rice outlet switching means is formed by a rotary valve in this embodiment.
- a target component concentration measuring system 21 1 for the rough rice is passed through a six-way switching valve 20. Is provided.
- the target component concentration measuring system 21 is a component concentration measuring means in the present invention for measuring the concentration of a necessary component in rough rice.
- the target component concentration system 21 is similar to the configuration of the target component concentration measurement system 10 for measuring the concentration of a required component in an extract, and is composed of rough rice collected by sampling means.
- a second separation column (not shown), which is a separation means for separating components in the sample, and a third UV detector (not shown,) which is a concentration measuring means for measuring the concentration of each component in the raffinate are provided.
- the structure of the sampling means, the second separation column, and the third UV detector and their connection relationship are the same as those in the target component concentration measurement system 10 for measuring the concentration of the required component in the extract. Therefore, the detailed description is omitted.
- the second separation column is loaded with a separation filler suitable for separating a specific component in the raffinate, and the preferred separation filler is usually packed in the first to eighth columns 2a to 2h. Separating fillers similar to those described can be employed.
- the target component (necessary component, non-adsorbing or weakly adsorbing) in the rough rice is obtained. Separated into non-target components (unnecessary components that are adsorbent or strongly adsorbent).
- the third UV detector can irradiate each component separated from rough rice with UV light and output an electric signal corresponding to the concentration of each component (necessary component and unnecessary component). Has functions.
- the circulating fluid in which the fluid circulates in the order of the 8th ram 2h ⁇ recycling line: a ⁇ the 1st to 8th columns 2a to 2h A channel is formed. Then, the supply position of the eluent, the supply position of the raw material solution, and each extraction position are moved by one unit column in the flow direction of the solvent by switching the rotary valve at regular time intervals.
- Fig. 9 schematically shows the concentration patterns of the extract component and the raffinate component in the four zones as described above.
- the hatched concentration distribution shown by hatching relates to the extract component
- the hatched concentration distribution shown by white relates to the raffinate component.
- the adsorbed component or the strongly adsorbed component that is, the extract component is expelled from the packing material, so that the extract is extracted.
- the concentration of the components is increasing, and in the concentration zone formed by the third column 2c and the fourth column 2d, the weakly adsorbed components remaining on the packing material are displaced, and the strongly adsorbed components are concentrated.
- the easily adsorbable component strongly adsorbed component
- the other difficult components are collected together with the eluent as a raffinate component.
- adsorption zone formed by 2 g of column 7 and 2 h of column 8 rough rice in the circulating fluid is removed.
- a substantial eluate containing no raffinate is recovered as a recovered liquid.
- the state of the solute concentration distribution in the circulating fluid flowing through the column is as shown in FIG. In FIG. 8, the concentration pattern is flat in the third column 2c to the fifth column 2e, but the concentration value of the solute in the fluid is This indicates that the maximum detected value has been completely removed.
- Fig. 9 shows an example of the extract and raffinate concentration distribution in each zone as the nature of the change.
- the concentration of the solute in the liquid flowing through the circulating fluid flow path is directly measured. Efficiently extract rough rice and extract according to changes in concentration.
- the first UV detector UVD 1 which is the three concentration detectors 6, is electrically connected to the arithmetic and control unit CMP via a communication cable, and is a detection signal output from the first UV detector UVD 1. Is output to the arithmetic control unit CMP.
- the first UV detector UVD 1 outputs, for example, an electric signal corresponding to the concentration of the weakly adsorbed component, for example.
- This electric signal is a time from the moment when the switching means, for example, a rotary valve is simultaneously switched, to the next switching, that is, the initial step time is set to 0, and the concentration of the weakly adsorbed component in the fluid increases with time. Therefore, the passage of time and the signal strength (eg, voltage or current value) increase.
- FIG. 10 shows the relationship between the change in density corresponding to the signal intensity of the electric signal and the passage of time.
- concentration data of each zone of a target component is obtained in advance by using the concentration detector.
- This operation is often called running operation.
- This preliminary concentration data is obtained by feeding a raw material solution (feed) with a known concentration of roughinate for a long period of time (for example, the time until the concentration distribution pattern becomes a stable chevron, for example, a cycle time of 50 to 1). 0.) It can be obtained by continuing to flow in this circulating fluid channel.
- Preliminary density data is stored in storage means such as a memory in the arithmetic and control unit CMP.
- the simulated moving bed type separation apparatus is fully operated using the raw material solution containing the component to be separated.
- the concentration of the target component is detected by a concentration detector arranged in the circulating fluid flow path.
- concentration detector located inside can detect the concentration of the target component in the circulating fluid flow path near the extract outlet, for example, when the extract outlet is switched
- concentration of the target component in the circulating fluid channel near the extract outlet of the extract is the highest concentration at the beginning of the switch, as shown in Fig. 12, for example, and the concentration decreases over time.
- the arithmetic and control unit CMP which inputs the electric signal (corresponding to the concentration data) output from the concentration detector, monitors the concentration of the target component over time from the beginning of the startup.
- the concentration of the weakly adsorbed component in the vicinity of the raffinate outlet is a predetermined threshold value for the maximum value. Measuring the time until the 1 0%.
- the concentration of the strongly adsorbed component near the extract extraction port is the maximum concentration at the time of switching over the valve, and the concentration decreases with time.
- the arithmetic and control unit CMP measures the time lapse from the beginning of startup, for example, measures the time until the concentration of the target component near the extract outlet reaches a predetermined set point.
- the set point is set at time T 1 as a concentration pattern of the target component near the rough-net outlet, which is detected by the concentration detector and monitored by the arithmetic and control unit CMP.
- a standard density pattern of fines accumulated in the arithmetic and control unit CMP by the running operation is indicated by A2, and in the pattern A2, the set point is reached at time T2. Note that these patterns are virtual.
- the concentration of the target component in the vicinity of the extract outlet and the concentration pattern of the target component in the vicinity of the extract outlet, which is detected by the concentration detector in this operation and monitored by the arithmetic and control unit CMP, is as follows.
- the pattern reaching the setpoint at time T'1 This is indicated by pattern B3, which reaches the set point at 1 or at time T'3.
- the standard concentration pattern of the extract accumulated in the arithmetic and control unit CMP by the running operation is indicated by B2, and the pattern B2 reaches the set point at time T'2. Note that these patterns are virtual.
- a first separation column 12 as a separating means and a second UV detector UVD2 as a component concentration measuring means are provided.
- the raffinate extraction pipe 18 is provided with a second separation column, which is a separation means, and a third UV detector, which is a component concentration measurement means, as the concentration measurement means via the sampling means 20.
- the arithmetic control unit CMP receives the electric signal output from the second UV detector UVD2 and calculates, for example, the concentration and purity of each component in the extract extracted from the extract extraction pipe 7.
- the concentration of each component can be determined based on a calibration curve prepared in advance using a sample, and the purity is determined from the determined concentration of the necessary component and the concentration of the unnecessary component. be able to.
- the concentration and purity are calculated from the area values shown in Fig. 5, respectively.
- the third UV detector in the concentration measuring means provided in the rough rice extraction pipe 18 has the same configuration as the second UV detector UVD2.
- an electric signal corresponding to the concentration of each component in the raffinate is output.
- This electric signal is 0 from the moment when the rough rice extraction outlet is switched to the next switching, that is, 0 at the beginning of the step time, and the component in the rough liquid in the liquid to be extracted is Over time, the signal strength (eg, voltage or current value) decreases as the concentration of DNA decreases. This situation is easily understood from FIG.
- a detection signal which is an electric signal, is output to the arithmetic and control unit.
- the arithmetic control unit based on the electric signal output from the first UV detector UVD1, the time from the moment when all the inlets and each outlet are simultaneously switched to the next switching, that is, the initial step time. Is set to 0, and the concentration of the weakly adsorbed component in the fluid that rises over time is monitored.
- the concentration of the component in the fluid flowing through the pipe 3 is calculated by the first UV detector UVD1 each time the inlet and the outlet are switched.
- the concentration can be determined by introducing a sample of known concentration into the UV detector at the same flow rate, and examining the relationship between the concentration and the output of the UV detector in advance.
- the column upstream (upstream) of the first UV detector UVD1 goes through the adsorption zone, purification zone, concentration zone and desorption zone.
- concentration distribution of the weakly adsorbed component and the strongly adsorbed component over the entire zone is calculated.
- the electric signals from the second UV detector UVD2 and the third UV detector are input, and based on the detection signal output from the second UV detector UVD2, the waveform area is used for extracting and roughing. The average concentration of the components is calculated.
- the concentration can be determined by introducing a sample of known concentration to the UV detector at the same flow rate and examining the relationship between the concentration and the output of the UV detector in advance. It is also desirable to measure the relationship between the flow rates of the extract and rough rice and the output from the UV detector using a sample of a known concentration in advance.
- the method for calculating the concentration and the purity can be performed according to a general chromatogram analysis method.
- the concentration of the component in the circulating fluid flow path measured by the first 1) detector provided in the circulating fluid flow path is determined by a predetermined threshold value.
- the control command signal for performing the control shown in Tables 1 and 2 is output from the arithmetic and control unit in accordance with the time until the temperature reaches and the purity of the raffinate and the extract.
- the control contents shown in Tables 1 and 2 may be any one of them, or may be two or more.
- Fig. 13 shows an example of the measurement results for rough rice
- Fig. 14 shows an example of the measurement results for the extract.
- the number of columns is a multiple of 4, that is, the number of columns may be determined so that four types of zones are formed.In general, the number of columns is a multiple of 4 out of 4 to 24. Column is adopted. However, the circulating fluid flow path is When formed with connected columns, the number of columns that make up each zone may vary from zone to zone.
- the valve for switching between the inlet and the outlet is not limited to a rotary valve, but may be a combination of an open / close valve.
- the component concentration measurement means does not use a separation means to separate each component in the extract or raffinate, but, for example, detects multiple types of concentrations that can measure each component in the extract. Even in the case of a combination of instruments, a multi-wavelength analyzer capable of simultaneously measuring a plurality of components can be employed.
- a pressure regulating valve for adjusting the pressure balance may be used instead of using the recycle pump.
- a desorbent pump is used to inject the eluent at a predetermined pressure into the circulating fluid flow path through the eluent introduction port, and the raw material solution is introduced into the circulating fluid flow path through the raw material solution introduction port.
- the flow rate of the fluid flowing through the circulating fluid flow path is adjusted only by adjusting the extractor and raffinate outlets by adjusting the pressure regulating valves provided there. Is done. Industrial applicability
- a simulated moving bed type separation apparatus capable of accurately monitoring the concentration in each zone in the simulated moving bed.
- a simulated moving bed type separation apparatus which can be operated by a simple operation as much as a liquid chromatography apparatus.
- a simulated moving bed type separation apparatus which does not produce rejected products, has a small sample loss, has a high recovery rate, and can perform component separation with high productivity.
- the present invention it is possible to continuously monitor the concentration distribution of the components in the simulated moving bed formed by the full power ram in the simulated moving bed type separation device, and to optimize the operating conditions according to the concentration distribution of the components. Can be provided.
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP96939326A EP0878222B1 (en) | 1995-12-01 | 1996-11-29 | Simulated moving bed separator |
DE69632076T DE69632076T2 (de) | 1995-12-01 | 1996-11-29 | Simulierte fliessbett-trennvorrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP31436495 | 1995-12-01 | ||
JP7/314364 | 1995-12-01 | ||
JP7323377A JPH09206502A (ja) | 1995-12-01 | 1995-12-12 | 擬似移動床式分離装置 |
JP7/323377 | 1995-12-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/476,354 Division US6217774B1 (en) | 1995-01-12 | 2000-01-03 | Simulated moving bed separation apparatus |
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WO1997020608A1 true WO1997020608A1 (fr) | 1997-06-12 |
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PCT/JP1996/003500 WO1997020608A1 (fr) | 1995-12-01 | 1996-11-29 | Separateur a lit quasi mobile |
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US (1) | US6217774B1 (ja) |
EP (1) | EP0878222B1 (ja) |
JP (1) | JPH09206502A (ja) |
KR (1) | KR100430554B1 (ja) |
CN (1) | CN1087640C (ja) |
DE (1) | DE69632076T2 (ja) |
WO (1) | WO1997020608A1 (ja) |
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JPH07328305A (ja) * | 1994-06-02 | 1995-12-19 | Daicel Chem Ind Ltd | 擬似移動層式クロマト分離装置における光学異性体分離のモニター方法、擬似移動層式クロマト分離装置および擬似移動層式クロマト分離方法 |
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FI69248C (fi) | 1976-12-21 | 1986-01-10 | Mitsubishi Chem Ind | Foerfarande foer reglering av operationsprocessen av en simulerad roerlig baedd |
JPS6055162B2 (ja) | 1977-05-26 | 1985-12-04 | 参松工業株式会社 | カラムクロマト分離法 |
US4478721A (en) | 1982-08-12 | 1984-10-23 | Uop Inc. | High efficiency continuous separation process |
US4498991A (en) | 1984-06-18 | 1985-02-12 | Uop Inc. | Serial flow continuous separation process |
JPH0669521B2 (ja) | 1986-12-23 | 1994-09-07 | 三菱化成エンジニアリング株式会社 | クロマト分離法 |
JPH04131104A (ja) | 1990-09-20 | 1992-05-01 | Sumitomo Heavy Ind Ltd | 擬似移動床方式の制御方法 |
JPH07106281B2 (ja) * | 1991-01-16 | 1995-11-15 | 綜研化学株式会社 | 多成分混合物の分離精製方法及び装置 |
DE59207503D1 (de) * | 1991-03-14 | 1996-12-12 | Bayer Ag | Verfahren zur trennung von enantiomeren an chiralen trennphasen mit hilfe eines kontinuierlichen gegenstrom-chromatographieverfahrens |
JPH0732805A (ja) * | 1993-07-15 | 1995-02-03 | Chuo Seiki Kk | 自動車用ホィール |
US5470482A (en) | 1993-12-27 | 1995-11-28 | Uop | Control process for simulated moving bed para-xylene separation |
US5556546A (en) | 1993-12-27 | 1996-09-17 | Mitsubishi Kasei Engineering Company | Method of separation into three components using a simulated moving bed |
US5457260A (en) | 1993-12-27 | 1995-10-10 | Uop | Control process for simulated moving adsorbent bed separations |
-
1995
- 1995-12-12 JP JP7323377A patent/JPH09206502A/ja not_active Abandoned
-
1996
- 1996-11-29 EP EP96939326A patent/EP0878222B1/en not_active Expired - Lifetime
- 1996-11-29 CN CN96198720A patent/CN1087640C/zh not_active Expired - Fee Related
- 1996-11-29 DE DE69632076T patent/DE69632076T2/de not_active Expired - Lifetime
- 1996-11-29 WO PCT/JP1996/003500 patent/WO1997020608A1/ja active IP Right Grant
- 1996-11-29 KR KR10-1998-0704129A patent/KR100430554B1/ko not_active IP Right Cessation
-
2000
- 2000-01-03 US US09/476,354 patent/US6217774B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH07323203A (ja) * | 1994-05-31 | 1995-12-12 | Daicel Chem Ind Ltd | 擬似移動層式クロマト分離方法および擬似移動層式クロマト分離装置 |
JPH07328305A (ja) * | 1994-06-02 | 1995-12-19 | Daicel Chem Ind Ltd | 擬似移動層式クロマト分離装置における光学異性体分離のモニター方法、擬似移動層式クロマト分離装置および擬似移動層式クロマト分離方法 |
Non-Patent Citations (1)
Title |
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See also references of EP0878222A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008512437A (ja) * | 2004-09-13 | 2008-04-24 | セフアロン・インコーポレーテツド | モダフィニルの分離方法 |
JP4942656B2 (ja) * | 2004-09-13 | 2012-05-30 | セフアロン・インコーポレーテツド | モダフィニルの分離方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100430554B1 (ko) | 2004-06-16 |
DE69632076D1 (de) | 2004-05-06 |
JPH09206502A (ja) | 1997-08-12 |
EP0878222A4 (en) | 2000-03-01 |
CN1087640C (zh) | 2002-07-17 |
EP0878222B1 (en) | 2004-03-31 |
DE69632076T2 (de) | 2004-08-26 |
KR19990071847A (ko) | 1999-09-27 |
US6217774B1 (en) | 2001-04-17 |
CN1203534A (zh) | 1998-12-30 |
EP0878222A1 (en) | 1998-11-18 |
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