WO2007086224A1 - フェノール含有水の処理方法及び処理設備 - Google Patents
フェノール含有水の処理方法及び処理設備 Download PDFInfo
- Publication number
- WO2007086224A1 WO2007086224A1 PCT/JP2006/325855 JP2006325855W WO2007086224A1 WO 2007086224 A1 WO2007086224 A1 WO 2007086224A1 JP 2006325855 W JP2006325855 W JP 2006325855W WO 2007086224 A1 WO2007086224 A1 WO 2007086224A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phenol
- azeotropic distillation
- concentration
- wastewater
- automatic gas
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/36—Azeotropic distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
- B01D3/4211—Regulation; Control of columns
- B01D3/4216—Head stream
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
- C07C37/78—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/322—Volatile compounds, e.g. benzene
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
Definitions
- the present invention relates to a method of treating phenol-containing water using an azeotropic distillation tower and a treatment facility thereof.
- a stationary separation tank installed at the top of the azeotropic distillation tower.
- An automatic gas chromatography device is installed in the drainage line, the phenol concentration in the wastewater is continuously monitored by the automatic gas chromatography device, and the azeotropy is detected at an early stage by detecting changes in the phenol concentration in the wastewater.
- the present invention relates to a method and facility for treating phenol-containing water that controls the operation of a distillation tower and stably stabilizes the phenol concentration in the wastewater to a low concentration.
- a method for treating a reaction product obtained by reacting phenol and acetone in the presence of an acid catalyst the reaction product is subjected to a first distillation treatment step and a bottom product comprising unreacted phenol and bisphenol A.
- (I) is separated into an unreacted phenol, unreacted acetone and water tower top (I), and the tower top (I) is subjected to a second distillation treatment step to form an unreacted phenol and water bottom.
- Product (II) and the tower top (II) having acetone power, and the tower bottom (II) obtained in the second distillation treatment step is converted into the tower bottom having phenol power in the third distillation treatment step.
- a method for treating a reaction product of phenol and acetone separated into a product (III) and a top product (III) made of water is disclosed (for example, see Patent Document 1).
- azeotropic distillation tower In a method of treating a mixed liquid of phenol and water in the presence of an azeotropic agent for water using an azeotropic distillation column, the bottom of the column having phenol power and a column composed of water and an azeotropic agent are used.
- the most important point in the processing method using this azeotropic distillation column is to prevent the phenol from flowing out to the top of the column. If phenol flows out to the top of the tower, it will eventually be mixed into the waste water.
- the azeotropic distillation tower is controlled by detecting the composition in the tower using a thermometer installed in the tower and controlling the outflow components. It is extremely difficult to control the concentration of phenol flowing out at the top temperature of!
- the azeotropic distillation tower has a stationary separation tank (settler) for separating the azeotropic agent and water at the top of the tower, and the stationary separation tank for separating the azeotropic agent and water.
- the residence time of several tens of minutes is required, and if the phenol flows out to the top of the tower and the phenol concentration in the stationary separation tank rises, the phenol concentration in the stationary separation tank increases for a while. The drainage will flow out of the stationary separation tank.
- Phenol-containing wastewater treated in an azeotropic distillation tower is generally subjected to activated sludge treatment in an activated sludge tank installed in a factory before being discharged into the sea or river. For this reason, once wastewater containing a high concentration of phenol is supplied to the activated sludge tank, the activated sludge immediately dies out, and the phenol is discharged without treatment as wastewater. It will have a great influence.
- this problem is not limited to wastewater treatment facilities such as activated sludge tanks, but the entire plant equipment, and in the worst case, the entire factory will be shut down for a long period of time, resulting in significant damage.
- liquid extraction equipment extraction distillation tower
- extraction distillation tower extraction distillation tower
- Patent Document 1 JP-A-6-135874
- Patent Document 2 JP 2000-107748
- the present invention has been made to solve the problems under the circumstances as described above, and is an azeotropic distillation in which phenol-containing water is treated by azeotropic distillation in the presence of an azeotropic agent for water.
- the concentration of phenol in the wastewater discharged from the stationary separation tank installed at the top of the azeotropic distillation tower is monitored, and the change in the concentration of phenol in the wastewater is detected at an early stage.
- By controlling the operation of the tower it is possible to stabilize the phenol concentration in the wastewater to a low concentration without requiring a liquid extraction facility (extraction distillation tower) on the downstream side, and a method for treating phenol-containing water and its The purpose is to provide treatment facilities.
- the present invention provides:
- azeotropic agent is at least one kind of azeotropic agent selected from among xylene, toluene, benzene, cyclohexane, cumene and ethylbenzene.
- a facility for treating phenol-containing water (5) The phenol-containing water treatment facility according to (4), further comprising a coalescer in a line for supplying a measurement sample to the automatic gas chromatography apparatus,
- FIG. 1 is a flow sheet of an example of a method for treating phenol-containing water according to the present invention.
- the method for treating phenol-containing water of the present invention is an azeotropic distillation tower that performs azeotropic distillation of phenol-containing water in the presence of an azeotropic agent for water, and is installed at the top of the azeotropic distillation tower.
- An automatic gas chromatography device is installed in the drainage line from the standing top separation tank, and the concentration of phenol in the wastewater is continuously measured by the automatic gas chromatography device. It is characterized by controlling.
- the automatic gas chromatography apparatus for measuring phenol used in the present invention is a general one, and is not particularly limited as long as the separation column capable of analyzing phenol in ppm order and the apparatus in which operation conditions can be set. ,.
- an automatic gas chromatography device refers to a gas chromatography device that automatically samples and analyzes automatically without human intervention! Uh.
- the analysis was carried out by the following automatic gas chromatography apparatus. Specifically, analysis is performed using the analyzer type GC8A & processor type GC8P & FID (hydrogen flame ion detector) manufactured by Yokogawa Electric Corporation, using a thermostatic chamber temperature of 105 ° C and nitrogen as the carrier gas. As the column model number, YGC-5 181G-1902, YGC-5171B-1810 was used for analysis.
- analyzer type GC8A & processor type GC8P & FID hydrogen flame ion detector
- a small amount of liberated azeotropic agent may be mixed in the sampling solution sent to the automatic gas chromatography device.
- the free azeotropic agent causes an analysis error of an automatic gas chromatography apparatus.
- the free azeotrope droplets are fed to an automated gas chromatography device, the free azeotrope contains a lot of phenol, so that the phenol in the actual liquid Although the concentration is not high, it is necessary to pay attention to the analysis result of the automatic gas chromatography device because the phenol concentration is abnormally high.
- a coalescer in a line for supplying a measurement sample to an automatic gas chromatography apparatus.
- Install the coalescer thus, after removing the free azeotropic agent mixed in a trace amount in the measurement sample with the coalescer, the measurement sample can be supplied to the automatic gas chromatography apparatus, and the azeotrope in the automatic gas chromatography apparatus can be supplied. It is possible to prevent the occurrence of analysis errors caused by the agent.
- the azeotropic agent collected by the coalescer is circulated to the stationary separation tank.
- the coalescer is not particularly limited as long as it has a function of collecting a free azeotropic agent, and examples thereof include a cartridge filter made by Cuno (1 micron, cellulose resin).
- Examples of the azeotropic agent for water used in the present invention include at least one selected from the group consisting of xylene, toluene, benzene, cyclohexane and ethylbenzene. Among them, ethylbenzene is the most economical and preferred. Better ,.
- the azeotropic distillation column used in the present invention is not particularly limited, and a distillation column usually used for distillation can be used as it is, and it may be a packed distillation column or a multi-stage tray type distillation column. Absent.
- the pressure in the column is about 70 to 80 kPa-A
- the column bottom temperature is 160 to 170 ° C
- the column top temperature is 80 to 90 ° C
- the reflux ratio ( RZ D) is operated at about 2 to 2.5.
- the method for controlling the operation of the azeotropic distillation tower by monitoring the phenol concentration in the wastewater by an automatic gas chromatography apparatus that continuously measures can be performed, for example, in the following manner. it can.
- the measurement sample is sampled at 15-minute intervals, and its phenol concentration is measured with an automatic gas chromatography device. If the upper limit permissible concentration of phenol is set to 200 ppm by mass and the phenol concentration measured at 15-minute intervals is detected to be ⁇ pm, which is about half of the above upper permissible concentration, the reflux ratio of the azeotropic distillation column Increase the value about 0.01 from the initial set value and monitor the subsequent changes in phenol concentration. If the phenol concentration still increases, increase the reflux ratio further by about 0.01. If there is no improvement even after adjusting the reflux ratio, lower the set value of the bottom temperature of the azeotropic distillation column or adjust the feed phenol content to decrease.
- the phenol concentration is continuously analyzed by the automatic gas chromatography device, the change in the detected value (analysis) by this automatic gas chromatography device is monitored, and the azeotropic distillation column is monitored.
- the concentration of phenol in the wastewater can be stabilized without the need for liquid extraction equipment (extraction distillation tower) downstream. Therefore, it is possible to treat phenol-containing water at a low concentration.
- FIG. 1 is an example of the method for treating phenol-containing water of the present invention.
- the phenol-containing water A to be treated is supplied to the azeotropic distillation column 1 via an automatic flow controller (FIC-1).
- FIC-1 automatic flow controller
- TIC automatic temperature controller
- the mixed vapor B of azeotropic agent and water coming out from the top of the azeotropic distillation column 1 is condensed by the top condenser 2 and then supplied to the stationary separation tank 3 where the azeotropic agent 4 And water 5 and separated.
- Azeotropic agent 4 is refluxed to the upper part of azeotropic distillation column 1 by a predetermined reflux ratio (extraction flow controller: FIC-2Z return flow controller: FIC-3), and water 5 is drained as a drainage tank 8, 9 or the activated sludge treatment facility 10 is sent by the liquid level controller (LIC) in the stationary separation tank 3 and the extraction flow rate controller (FIC-2).
- phenol C is discharged from the bottom of the azeotropic distillation column 1.
- the drainage line is equipped with an automatic gas chromatograph 7 for automatically sampling a small amount of wastewater and continuously measuring the phenol concentration in the wastewater. Further, it is preferable to provide a coalescer 6 in the line for supplying the sample to the automatic gas chromatography apparatus 7.
- the wastewater is supplied directly to the activated sludge treatment facility 10 as a normal line, but for some reason, the phenol concentration in the wastewater by the automatic gas chromatograph is If the specified value is exceeded, the wastewater is stored in the drainage tank 8 or 9. Then, the phenol concentration in the drainage tank is measured again. If the phenol concentration actually exceeds the specified value, the wastewater in the drainage tanks 8 and 9 is recycled to the azeotropic distillation tower 1. On the other hand, if it can be confirmed that the phenol concentration is actually below the predetermined value, the wastewater in the drainage tanks 8 and 9 is supplied to the activated sludge treatment facility 10.
- the present invention also provides an azeotropic distillation column, a tower top stationary separation tank installed at the top of the azeotropic distillation tower, and a drain line from the separation tank for measuring the phenol concentration in the waste water.
- Self is a phenol-containing water treatment facility equipped with a dynamic gas chromatograph. For the reason described above, it is preferable that this phenol-containing water treatment facility is equipped with a coalescer in a line for supplying a measurement sample to an automatic gas chromatography apparatus.
- Phenol-containing water (phenol 30 mass 0 I water 70 mass 0/0) in 5TZhr, was treated by the azeotropic distillation column Echirubenze in as entrainer.
- the column bottom temperature was controlled at 168 ° C under reduced pressure (70 kPa-A).
- the tower top temperature was 81-82 ° C.
- Phenolic is extracted from the bottom of the tower at 1.5 tZhr, and ethylbenzene and water are extracted from the top of the tower with an azeotropic composition, condensed in the top condenser, and then in the stationary separation tank. Separated. The separated water was sent as wastewater to a wastewater treatment facility (activated sludge facility) (3.5 t / hr, annual wastewater volume: about 30000 tons)
- a wastewater treatment facility activated sludge facility
- the wastewater sampling solution from this drainage line was continuously analyzed for phenol concentration via a coalescer (1 micron filter, cellulose resin) with an automatic gas chromatograph.
- a coalescer (1 micron filter, cellulose resin)
- an automatic gas chromatograph By monitoring the change in the detected value (analysis) in this automatic gas chromatography device, continuous operation for one year was performed while controlling the supply amount, temperature, reflux ratio, etc. to the azeotropic distillation column.
- the wastewater phenol concentration below 200 ppm by mass for one year, and the solution could be sent directly to the wastewater treatment facility without going through the wastewater tank.
- no abnormal value was found in the analysis value of the automatic gas chromatography apparatus.
- the sample was treated in an azeotropic distillation column in the same manner as in Example 1 except that a coalescer was installed in the drainage sampling line with a strong drainage line. 1 year of continuous operation. Meanwhile, a peak with high phenol concentration was observed about once a month. In this case, collect the sample again and use another manual gas chromatography device to check that there is no problem with the phenol concentration! From the activated sludge facility (wastewater treatment facility) to the drainage destination, The time required to perform the operation to switch to 3 hours was 3 hours.
- the sample was processed in an azeotropic distillation column in the same manner as in Example 1 except that an automatic gas chromatography apparatus was provided.
- the tower top temperature was 81-82 ° C, with no change for one year.
- Wastewater is sent to the wastewater tank, sampled from the tank, analyzed by manual gas chromatography, and if the phenol concentration that the wastewater treatment facility can accept is less than 200 mass ppm.
- the amount retreated in one year is one-tenth of the total amount of wastewater (approximately 3,000 tons), and the utility for treating the wastewater is approximately 4,000 tons Z in terms of steam (50 OkcalZt—steam). I went up to the year.
- the present invention relates to an azeotropic distillation tower for treating phenol-containing water by performing azeotropic distillation in the presence of an azeotropic agent for water, and a stationary separation tank installed at the top of the azeotropic distillation tower.
- azeotropic distillation tower for treating phenol-containing water by performing azeotropic distillation in the presence of an azeotropic agent for water
- a stationary separation tank installed at the top of the azeotropic distillation tower.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06843239A EP1995218A4 (en) | 2006-01-27 | 2006-12-26 | METHOD OF TREATING WATER CONTAINING PHENOLS AND APPARATUS |
KR1020087018110A KR101304294B1 (ko) | 2006-01-27 | 2006-12-26 | 페놀 함유수의 처리 방법 및 처리 설비 |
CN2006800519229A CN101336210B (zh) | 2006-01-27 | 2006-12-26 | 含苯酚的水的处理方法和处理设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-019785 | 2006-01-27 | ||
JP2006019785A JP5064690B2 (ja) | 2006-01-27 | 2006-01-27 | フェノール含有水の処理方法及び処理設備 |
Publications (1)
Publication Number | Publication Date |
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WO2007086224A1 true WO2007086224A1 (ja) | 2007-08-02 |
Family
ID=38309025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/325855 WO2007086224A1 (ja) | 2006-01-27 | 2006-12-26 | フェノール含有水の処理方法及び処理設備 |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1995218A4 (ja) |
JP (1) | JP5064690B2 (ja) |
KR (1) | KR101304294B1 (ja) |
CN (1) | CN101336210B (ja) |
RU (1) | RU2414429C2 (ja) |
TW (1) | TWI423838B (ja) |
WO (1) | WO2007086224A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8608912B2 (en) * | 2010-09-29 | 2013-12-17 | Uop Llc | Methods and extraction units employing vapor draw compositional analysis |
CN101973595B (zh) * | 2010-10-11 | 2012-10-03 | 徐州瑞赛科技实业有限公司 | 共沸-水蒸汽蒸馏处理有机废水的方法 |
US9006506B2 (en) * | 2011-10-07 | 2015-04-14 | Exxonmobil Chemical Patents Inc. | Alkylation process |
JP6175460B2 (ja) * | 2014-03-31 | 2017-08-02 | 富士フイルム株式会社 | 溶剤回収調製方法、及び溶液製膜方法 |
CN105561620B (zh) * | 2014-10-09 | 2017-11-28 | 中国石油化工股份有限公司 | 含水高沸点溶剂回收工艺及装置 |
KR102011715B1 (ko) | 2015-10-22 | 2019-08-19 | 주식회사 엘지화학 | 페놀 정제 방법 |
CN107200680B (zh) * | 2016-03-19 | 2021-05-07 | 青岛科技大学 | 一种苯酚废水的变压精馏分离方法 |
WO2018106564A1 (en) * | 2016-12-07 | 2018-06-14 | Monsanto Technology Llc | Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom |
CN106512464A (zh) * | 2016-12-20 | 2017-03-22 | 广西壮族自治区林业科学研究院 | 一种香料连续精馏生产控制*** |
CN114177641A (zh) * | 2021-12-16 | 2022-03-15 | 北京石油化工学院 | 一种粗酚脱水方法 |
CN114395429B (zh) * | 2022-01-20 | 2023-04-11 | 青岛君扬化工科技有限公司 | 一种低阶煤干馏气分离装置及工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06135874A (ja) | 1992-10-30 | 1994-05-17 | Chiyoda Corp | フェノールとアセトンとの反応生成物の処理方法 |
JPH06296831A (ja) * | 1993-04-15 | 1994-10-25 | Mitsui Eng & Shipbuild Co Ltd | フェノール含有排水の処理方法 |
JP2000107748A (ja) | 1998-10-02 | 2000-04-18 | Nippon Refine Kk | 排水処理法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1057838C (zh) * | 1995-05-30 | 2000-10-25 | 中国科学院成都有机化学研究所 | 一种从饲料及食品中分离,纯化腈的方法 |
JPH09253624A (ja) * | 1996-03-22 | 1997-09-30 | Toyo Eng Corp | 水−フェノールの精製分離装置及び精製分離方法 |
KR19980023844A (ko) * | 1996-09-25 | 1998-07-06 | 김태환 | 알파 메틸 스티렌 혼합물중의 페놀 함량을 감소시키는 방법 |
JP2003512930A (ja) * | 1999-11-02 | 2003-04-08 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | プロピレンオキシド製造方法からの工業排水の精製方法 |
CN1546465A (zh) * | 2003-12-05 | 2004-11-17 | 吉林省石油化工设计研究院 | 回收四甲基胍的方法 |
-
2006
- 2006-01-27 JP JP2006019785A patent/JP5064690B2/ja active Active
- 2006-12-26 CN CN2006800519229A patent/CN101336210B/zh active Active
- 2006-12-26 EP EP06843239A patent/EP1995218A4/en not_active Withdrawn
- 2006-12-26 WO PCT/JP2006/325855 patent/WO2007086224A1/ja active Application Filing
- 2006-12-26 RU RU2008134909/05A patent/RU2414429C2/ru active
- 2006-12-26 KR KR1020087018110A patent/KR101304294B1/ko active IP Right Grant
-
2007
- 2007-01-03 TW TW096100213A patent/TWI423838B/zh active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06135874A (ja) | 1992-10-30 | 1994-05-17 | Chiyoda Corp | フェノールとアセトンとの反応生成物の処理方法 |
JPH06296831A (ja) * | 1993-04-15 | 1994-10-25 | Mitsui Eng & Shipbuild Co Ltd | フェノール含有排水の処理方法 |
JP2000107748A (ja) | 1998-10-02 | 2000-04-18 | Nippon Refine Kk | 排水処理法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1995218A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1995218A4 (en) | 2012-01-11 |
TWI423838B (zh) | 2014-01-21 |
JP2007196171A (ja) | 2007-08-09 |
JP5064690B2 (ja) | 2012-10-31 |
RU2008134909A (ru) | 2010-03-10 |
EP1995218A1 (en) | 2008-11-26 |
RU2414429C2 (ru) | 2011-03-20 |
KR20080089434A (ko) | 2008-10-06 |
TW200730489A (en) | 2007-08-16 |
CN101336210A (zh) | 2008-12-31 |
KR101304294B1 (ko) | 2013-09-11 |
CN101336210B (zh) | 2013-06-19 |
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