WO2008035541A1 - Appareil d'estimation de performance de volatilisation et procédé d'estimation de performance de volatilisation - Google Patents
Appareil d'estimation de performance de volatilisation et procédé d'estimation de performance de volatilisation Download PDFInfo
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- WO2008035541A1 WO2008035541A1 PCT/JP2007/066521 JP2007066521W WO2008035541A1 WO 2008035541 A1 WO2008035541 A1 WO 2008035541A1 JP 2007066521 W JP2007066521 W JP 2007066521W WO 2008035541 A1 WO2008035541 A1 WO 2008035541A1
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- WIPO (PCT)
- Prior art keywords
- devolatilization
- screw
- solution
- volatile
- groove
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92723—Content, e.g. percentage of humidity, volatiles, contaminants or degassing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Definitions
- Devolatilization performance prediction device devolatilization performance prediction method
- the present invention relates to a method for predicting devolatilization performance in devolatilization processing in a twin screw extruder.
- C is the concentration of volatile substances (ppm) at the devolatilization zone inlet (immediately before devolatilization), and C is
- Volatile substance concentration (ppm)
- C is the vapor-liquid equilibrium concentration (ppm) of volatile and non-volatile substances (polymer and rubber solutions) under pressure and temperature conditions where devolatilization is performed
- K is the mass transfer coefficient
- p is the density of the non-volatile material containing volatile substances (kg / m 3 )
- S is the film surface of the non-volatile material containing the volatile substances in a cross section perpendicular to the extruder screw flight.
- L is the channel length (m) of the non-volatile substance solution containing volatile substances in the devolatilization zone
- Dd is the non-volatile substance solution containing volatile substances in the solution
- the diffusion coefficient of volatile substances (m 2 / s)
- N is the screw rotation speed (s- 1 )
- Q is the total throughput (kg / s).
- FIG. 16 is a diagram showing a schematic configuration of a conventional biaxial screw extruder.
- This Latinen model formula is a volatilization area of a non-volatile substance (exposed surface layer) containing a volatile substance renewed by rotating the screw in the devolatilization area of a twin screw extruder as shown in Fig. 16.
- the product of the overall area of the volatile substance and the diffusion rate of the non-volatile power of the volatile substance that is, the weight of the non-volatile substance containing the volatile substance and the non-volatile substance containing the entire volatile substance.
- the concentration of residual volatile substances after devolatilization is predicted based on the weight ratio of the substances.
- 100 is a barrel capable of heating and cooling
- 200 is a screw
- 300 is a vent (an opening for removing separated volatile substances)
- 401 and 402 are kneading screws
- 501 and 502 are volatile substances.
- the part where the non-volatile substance containing benzene is completely filled in the barrel, 600 is the part where the non-volatile substance containing volatile substance flows in a non-filled state! Area).
- C, C, C, p and Dd in this Latinen model formula are non-volatile substances and volatile substances.
- N and Q are operating factors of the extruder. These factors vary depending on the environment and conditions of the devolatilization operation.
- a solution of a non-volatile substance containing a volatile substance is constantly flowing in the screw and is formed in the barrel and the screw by the rotation of the screw in the devolatilization region.
- the shape of the solution to be applied and the exposed surface layer are constantly changing.
- the present invention has been made to solve the above-described problems, and realizes more accurate devolatilization performance prediction with higher adaptability in the devolatilization performance prediction in a twin screw extruder. To provide a technical body that can be used.
- a devolatilization performance prediction apparatus is a devolatilization performance prediction apparatus in a devolatilization process of a solution in a twin-screw extruder, and includes a volatile substance.
- Information on the flow state of the solution present in the devolatilization area (600) to be devolatilized on the screw (200) that transports the solution of the non-volatile substance containing the quality is stored in the star groove.
- the solution (700) existing on the groove surface on the upstream side in the conveying direction, the solution (800) existing in the gap between the screw (200) and the barrel (100), and the groove surface on the downstream side in the conveying direction in the screw groove A flow state calculation means (101) for calculating based on a flow state with the solution (900) existing on the top, and the flow state calculated based on the flow state of the solution existing on the screw (200). Based on information, devolatilization in the devolatilization process And devolatilization performance prediction means (102) for predicting performance.
- the devolatilization performance prediction method is a devolatilization performance prediction method in the devolatilization processing of a solution in a twin screw extruder, and includes a volatile substance containing a volatile substance.
- Information on the flow state of the solution existing in the devolatilization area (600) to be devolatilized on the screw (200) that conveys the solution is obtained on the groove surface on the upstream side in the conveyance direction of the screw groove.
- Predicting the devolatilization performance in the devolatilization process based on the information on the fluid state calculated based on the fluid state of the solution existing on the screw (200). It is a feature.
- FIG. 1 is a functional block diagram for explaining a devolatilization performance prediction apparatus M according to the present embodiment.
- FIG. 2 is a flow chart per screw piece.
- FIG. 3 is a diagram showing a filling state of a non-volatile substance solution containing a volatile substance formed in a barrel and a screw in a cross section perpendicular to the screw axis.
- FIG. 4 A schematic view of the filling state of a non-volatile substance solution containing a volatile substance present in a screw groove when surface renewal is not taken into consideration, from a cross section of the screw flight.
- FIG. 5 A division diagram of a full state of a non-volatile substance solution containing a volatile substance formed in the barrel and screw groove at right angles to the screw flight!
- FIG. 6 is a schematic diagram of a flow state of a non-volatile substance solution containing a volatile substance in a screw groove.
- FIG. 7 is a schematic view of the formation and flow state of a non-volatile substance solution containing a volatile substance in the gap between the barrel and the screw (tip part).
- FIG. 8 is a diagram showing a schematic configuration of an experimental apparatus.
- FIG. 9 is a diagram showing the screw shape used in the experiment.
- FIG. 10 is a diagram showing experimental results.
- FIG. 11 is a vapor-liquid equilibrium concentration diagram of polyethylene and n-hexane.
- FIG. 12 is a temperature dependence diagram of vapor-liquid equilibrium concentrations of polyethylene and n-hexane.
- FIG. 13 is a correlation diagram between the left term and the right term of this prediction formula, calculated by changing the diffusion rate of n-hexane.
- FIG. 14 is a correlation diagram between the left term and the right term of the prediction formula calculated by changing the filling efficiency of the polymer solution from the results of the implementation.
- FIG. 15 is a flowchart for explaining the flow of processing (devolatilization performance prediction method) in the devolatilization performance prediction apparatus M according to the present embodiment.
- FIG. 16 is a diagram showing a schematic configuration of a conventional twin screw extruder.
- FIG. 1 is a functional block diagram for explaining the devolatilization performance prediction apparatus M according to the present embodiment.
- the devolatilization performance prediction apparatus M according to the present embodiment includes a flow state calculation means 101, a devolatilization performance prediction means 102, a CPU 801, and a MEMORY 802, and a solution in a twin screw extruder.
- the flow state calculation means 101 relates to the flow state of the solution present in the devolatilization region 600 to be devolatilized on the screw 200 that conveys the solution of the non-volatile material containing the volatile material.
- the devolatilization performance predicting means 102 has a function of predicting the devolatilization performance in the devolatilization process based on the information on the fluid state calculated based on the fluid state of the solution existing on the screw 200. ! / The details of the devolatilization performance prediction method in the devolatilization performance prediction means 102 will be described later.
- the CPU 801 has a role of performing various processes in the devolatilization performance prediction apparatus M, and also has a role of realizing various functions by executing programs stored in the MEMORY 802.
- the MEMORY 802 is composed of, for example, ROM and RAM, and has a role of storing various information and programs used in the devolatilization performance prediction apparatus M.
- the non-volatile substance solution containing a volatile substance flows through the screw groove in a non-filled state.
- the length of the flow path along the flight of a non-volatile substance solution containing volatile substances is expressed by the following equation for the flow path L per piece of twin screw, which is perfectly matched, as shown in Fig. 2.
- ⁇ is the number of screw flights
- D is the cylinder inner diameter (m)
- W is the distance between the two axes (m)
- H is the screw groove depth (m)
- ⁇ is the screw flight spiral angle (deg. ).
- the solution is divided into three parts and flowing.
- Fig. 4 is a schematic view of a full state of a non-volatile substance solution containing a volatile substance existing in a screw groove when surface renewal is not taken into consideration, from a cross section orthogonal to the screw flight.
- the filling state of the solution of the non-volatile substance containing the volatile substance existing in the screw groove is formed from the following three shapes having different flow forms existing in the screw groove!
- the devolatilization performance predicting means 102 has devolatilization with a clearer exposure surface area. Performance can be predicted.
- Ln (C -C) / (C -C) ((2n- l) p SL (DdN) 1/2 + ⁇ ⁇ p SL (DdN) 1/2 + ⁇ p SL (DdN).
- L is the non-volatile substance (polymer or rubber solution) containing volatile substances in the devolatilization zone (600) solution flow path length (m)
- L is the screw axis direction of the devolatilization zone
- C is the volatile substance concentration (ppm) at the devolatilization zone inlet
- C is the pressure at which devolatilization is performed
- the ratio of the exposed surface length to the exposed surface length in a shape that does not take into account surface renewal (surface renewal efficiency 1), K is the time that the exposed surface is renewed by the average flow velocity between the barrel (100) and screw (200) And the retention time in the devolatilization area (surface renewal efficiency 2), screw K
- N is the screw rotation speed (s—, n is the number of screw flights, ⁇ is the barrel (100) screw (2 00) of the gap forming the thin film of the solution formed in (tip portion) efficiency, the solution is filled in the screw grooves I! /, it! /, formed of a thin film of solution formed in a portion efficiency
- Q is the total throughput (kg / s).
- the vertical flow rate is considered as the surface renewal flow rate E (m / s)
- the devolatilization zone stays Derived is the length of the exposed surface formed by the surface renewal flow.
- the ratio of the exposed surface length S (m) in the shape not considering the surface renewal is defined as the surface renewal efficiency K and the following equation.
- L is the channel length (m) of the non-volatile substance solution containing volatile substances in the devolatilization zone
- D is the cylinder inner diameter (m)
- N is the screw rotation speed (s—)
- ⁇ is screw flight Of the spiral angle (deg.).
- the thin film of the solution 800 existing in the gap between the screw 200 and the barrel 100 is affected by the average peripheral speed G (m / s) at the tip part of the screw flight, and depends on the average flow speed at the tip part.
- the thin film of polymer solution is updated.
- the ratio of the time for renewal with the average flow velocity at the tip and the time for staying in the devolatilization area is defined as the surface renewal efficiency K and is given by the following equation.
- L is the channel length (m) of the non-volatile substance solution containing volatile substances in the devolatilization region
- F is the propulsion flow velocity of the solution flowing along the screw flight (m)
- S is the inner surface of the barrel Length (m)
- D is cylinder bore (m)
- W is the distance between two shafts (m)
- n is the number of screw flights
- N is the screw rotation speed (s—).
- the thin film formed on the groove bottom of the screw is also renewed at the mating part of the biaxial screw under the influence of the peripheral speed of the screw flight.
- the ratio of the time for renewal at the screw speed! /, The peripheral speed I (m / s) of the part and the time for staying in the devolatilization area is defined as the surface renewal efficiency K and the following equation.
- L is the channel length (m) of the non-volatile substance solution containing the volatile substance in the devolatilization region
- F is the propulsion flow velocity along the screw flight (m / s)
- S is the overall length (m) of the non-filled portion of the non-volatile substance solution containing volatile substances at the bottom of the screw groove
- n is the screw flight condition.
- D is cylinder bore (m)
- N screw speed (s—).
- the experimental apparatus is shown in FIG.
- a melter extruder was installed in the upper stage to prepare an experimental simulation material containing volatile substances, and a devolatilizing twin screw extruder for devolatilization experiments was installed in the lower stage.
- polymer pellets are melted after being fed by a constant feed feeder 170, and a solvent that becomes a volatile substance is quantitatively fed by a plunger pump 180 and then sufficiently dissolved and dispersed.
- the polymer solution thus prepared is fed into / extruded to a devolatilizing extruder 160.
- the twin screw extruder 160 for devolatilization is a mating type co-rotating twin screw extruder ( ⁇ 65 ⁇ ) manufactured by Nippon Steel Works, Ltd., and has one vent port. .
- Figure 9 shows the screw used in the experiment.
- the length of the devolatilization zone was L / D, and a comparative study was conducted with two shapes: No. 1 screw with about 10.5 and 14 ⁇ ⁇ 2 screws. In both screw shapes, the devolatilization zone consists of two-flight flights.
- the solution was mixed in a melter-extruder 150 so that the solution temperature was 190 ° C. and supplied to a devolatilizing twin-screw extruder 160.
- the polymer solution temperature was measured with a thermocouple type resin thermometer 2000 installed in the polymer pipe connecting the melter extruder and the devolatilizing twin screw extruder.
- the devolatilization conditions are: 2 levels for changing the throughput Q to 150, 250 kg / h, 3 levels for changing the Q / N to 0.75, 1.00, 1.50 for a throughput of 150 kg / h, throughput In the case of 250 kg / h, the Q / N is changed to 1.00 and 1.50.
- Barrel temperature was generally kept at 200 ° C, vacuum degree was controlled at 4 X 10- 3 MPa.
- the pressure of the polymer solution extruded from the extruder is measured by the diaphragm type pressure gauge 220 installed at the tip of the devolatilizing extruder, and the temperature of the polymer solution discharged from the extruder force is measured by a thermocouple type. Measured with a handy type thermometer.
- the discharged polymer solution is sampled and volatile substances are obtained by gas chromatography. The quality concentration was measured.
- Fig. 10 shows the experimental results. From the experimental results in Fig. 10, the applicability of this prediction formula was confirmed.
- P is the degree of vacuum (MPa) in the devolatilization region.
- the right term of this prediction formula is !!, and the devolatilization region is formed and the polymer flow path of each screw that becomes an unfilled part is determined and summarized from the screw configuration, and devolatilization is performed.
- the length of the polymer solution channel in the region was L.
- L is the polymer solution shape formed in the gap between the barrel 100 and the screw 200, so it does not originate from the polymer solution flow path of the screw 200, so the length of the devolatilization region in the screw axis direction was used.
- the density ⁇ of the polymer solution was 750 kg / m 2, which is the melt density of polyethylene.
- the devolatilization performance prediction means 102 in the devolatilization performance prediction apparatus M predicts the devolatilization performance (that is, the devolatilization performance prediction means 102 (that is, the residual volatile performance in the non-volatile material solution after devolatilization). This is equivalent to the prediction of the concentration C of existing volatile substances.
- the devolatilization performance predicting means 102 includes the following factors (a) to (e):
- FIG. 15 is a flowchart for explaining the flow of processing (devolatilization performance prediction method) in the devolatilization performance prediction apparatus M according to this embodiment.
- the flow state calculation unit 101 relates to the flow state of the solution present in the devolatilization region 600 to be devolatilized on the screw 200 that transports the solution of the non-volatile material containing the volatile material.
- the devolatilization performance predicting means 102 predicts the devolatilization performance in the devolatilization process based on information on the flow state calculated based on the flow state of the solution existing on the screw 200 (devolatilization performance prediction Step) (S102
- L is the channel length of the non-volatile substance solution containing the volatile substance in the devolatilization region (600), L is the length of the devolatilization region in the screw axis direction, C Enter the devolatilization
- Volatile substance concentration in the mouth vapor-liquid equilibrium concentration of volatile and non-volatile substances under pressure and temperature conditions where C is devolatilized, C after devolatilization, volatile substance concentration after devolatilization, K in the devolatilization area
- the ratio of the exposed surface length formed by the surface renewal flow within the residence time to the exposed surface length in a shape that does not consider surface renewal and K is the average flow velocity of the gap between the barrel (100) and screw (200)
- K The ratio between the time the exposed surface is renewed and the time spent in the devolatilization zone
- K The ratio of the time during which the exposed surface is renewed by the peripheral speed at the screw joint and the residence time in the devolatilization zone
- p is the density of the non-volatile substance containing volatile substances
- S is the
- Exposed surface length in a shape that considers the filling rate of the non-volatile substance solution containing volatile substances filling the groove and does not consider surface renewal, s is the barrel inner surface length
- Each step in the process in the above devolatilization performance prediction apparatus ⁇ is realized by causing the CPU 801 to execute a devolatilization performance prediction program stored in the MEMORY802.
- a non-volatile substance solution containing a volatile substance is used. Is present in the barrel and screw groove per unit time considering the flow behavior of the non-volatile material solution containing the volatile material formed in the barrel and screw Highly adaptable devolatilization by constructing a new model that categorizes the filling state of the solution into three shapes with different cross-sectional shapes of screw flight and different flow forms, and examining each flow form and introducing a new surface renewal efficiency A performance prediction method can be provided.
- a technology capable of realizing more accurate devolatilization performance prediction with high adaptability in prediction of devolatilization performance in a twin screw extruder.
- the power to do is S kurakura.
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US12/442,009 US8306799B2 (en) | 2006-09-19 | 2007-08-27 | Devolatilization performance prediction apparatus and devolatilization performance prediction method |
AT07792998T ATE535875T1 (de) | 2006-09-19 | 2007-08-27 | Vorrichtung zum schätzen von verflüchtigungsleistung und verfahren zum schätzen von verflüchtigungsleistung |
JP2008535299A JP4778063B2 (ja) | 2006-09-19 | 2007-08-27 | 脱揮性能予測装置、脱揮性能予測方法 |
EP07792998A EP2065161B1 (en) | 2006-09-19 | 2007-08-27 | Volatilization performance estimating apparatus and method of estimating volatilization performance |
ES07792998T ES2378405T3 (es) | 2006-09-19 | 2007-08-27 | Aparato de estimación de rendimiento de volatilización y procedimiento de estimación de rendimiento de volatilización |
CA002663956A CA2663956A1 (en) | 2006-09-19 | 2007-08-27 | Volatilization performance estimating apparatus and method of estimating volatilization performance |
Applications Claiming Priority (2)
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JP2006-253148 | 2006-09-19 | ||
JP2006253148 | 2006-09-19 |
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WO2008035541A1 true WO2008035541A1 (fr) | 2008-03-27 |
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PCT/JP2007/066521 WO2008035541A1 (fr) | 2006-09-19 | 2007-08-27 | Appareil d'estimation de performance de volatilisation et procédé d'estimation de performance de volatilisation |
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US (1) | US8306799B2 (ja) |
EP (1) | EP2065161B1 (ja) |
JP (1) | JP4778063B2 (ja) |
AT (1) | ATE535875T1 (ja) |
CA (1) | CA2663956A1 (ja) |
ES (1) | ES2378405T3 (ja) |
TW (1) | TWI380894B (ja) |
WO (1) | WO2008035541A1 (ja) |
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CN110428489A (zh) * | 2019-07-26 | 2019-11-08 | 北京罗森博特科技有限公司 | 弧形通道规划方法及装置 |
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TWI649180B (zh) * | 2013-04-04 | 2019-02-01 | 艾朗希歐德意志有限公司 | 用於自含彈性體媒介移除揮發性組份之方法及為此目的之去揮發物設備 |
CN113049770B (zh) * | 2021-06-02 | 2021-08-27 | 碧兴物联科技(深圳)股份有限公司 | 用于水质在线监测仪的计算方法、装置、设备及存储介质 |
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JPWO2008035541A1 (ja) | 2010-01-28 |
ES2378405T3 (es) | 2012-04-12 |
CA2663956A1 (en) | 2008-03-27 |
EP2065161A1 (en) | 2009-06-03 |
ATE535875T1 (de) | 2011-12-15 |
TW200829421A (en) | 2008-07-16 |
US8306799B2 (en) | 2012-11-06 |
US20100023306A1 (en) | 2010-01-28 |
TWI380894B (zh) | 2013-01-01 |
EP2065161B1 (en) | 2011-11-30 |
JP4778063B2 (ja) | 2011-09-21 |
EP2065161A4 (en) | 2010-08-04 |
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