JP5065048B2 - 規格に適合した無水フタル酸の製造方法 - Google Patents
規格に適合した無水フタル酸の製造方法 Download PDFInfo
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- JP5065048B2 JP5065048B2 JP2007549831A JP2007549831A JP5065048B2 JP 5065048 B2 JP5065048 B2 JP 5065048B2 JP 2007549831 A JP2007549831 A JP 2007549831A JP 2007549831 A JP2007549831 A JP 2007549831A JP 5065048 B2 JP5065048 B2 JP 5065048B2
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- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 title claims abstract description 31
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000004821 distillation Methods 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000010992 reflux Methods 0.000 claims abstract description 23
- 238000009835 boiling Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 30
- 238000000605 extraction Methods 0.000 claims description 19
- 239000011552 falling film Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 40
- 239000005711 Benzoic acid Substances 0.000 description 20
- 235000010233 benzoic acid Nutrition 0.000 description 20
- 239000003086 colorant Substances 0.000 description 14
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 14
- 241001550224 Apha Species 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 10
- 239000012535 impurity Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229940078552 o-xylene Drugs 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- KOPBYBDAPCDYFK-UHFFFAOYSA-N caesium oxide Chemical compound [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 description 2
- 229910001942 caesium oxide Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 241000534000 Berula erecta Species 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000001944 continuous distillation Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
-
- 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
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/89—Benzo [c] furans; Hydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
凝固点(℃) 最小130.8
質量割合(質量%):
PSA 最小99.8
MSA 最大0.05
安息香酸 最大0.10もしくは
香料品質の場合に最大0.002
フタル酸 最大0.1
溶融色数(ハーゼン) 最大20
加熱色数(ハーゼン) 最大40。
A)使用される装置
略示図1による段塔を使用した。塔中のトレイの数は、変更されることができた。試験の実施のためには、例に相応して、22〜27の理論分離段の数に相当する32〜39のバルブトレイを取り付けた。塔は、50mmの直径を有していた。側部抜出部(c)は、底部の上方の10番目と11番目との間のトレイに(おおよそ7番目と8番目との間の理論分離段の領域内)存在しており、粗製PSAの供給(a)は、底部の上方の21番目と22番目との間のトレイに(おおよそ14番目の理論分離段の領域内)存在していた。図面中に、1番目及び2番目のトレイは記入されており、その他のトレイは、垂直の破線により表示されている。
担体コアと、前記コアの上にシェル状に施与された触媒活性な金属酸化物である酸化セシウム(セシウム0.4質量%として計算)、酸化バナジウム(4質量%)及び二酸化チタン(95.6質量%)とからなる触媒の存在での固定床上のo−キシレンの気相酸化により製造されていた(国際公開(WO-A)第01/14308号パンフレット参照)、粗製PSAを蒸留した。反応器中のローディングは、空気1m3(標準状態)あたりo−キシレン86gであった。反応器温度は350〜450℃であった。
PSA 99.24質量%
安息香酸 0.2質量%
無水マレイン酸 200ppm
シトラコン酸無水物 20ppm
フタル酸 0.5質量%
及びその他の物質 100質量%までの残余。
溶融色数を、蒸留されたPSAからの試料の取り出し直後に決定した。加熱色数を、次のように決定した:試料PSAを、加熱庫中で250℃の温度で1.5時間、温度調節した。引き続いて色数を測定した。
比較例:技術水準(欧州特許出願公開(EP-A)第1 233 012号明細書)による蒸留;参照符号は図に示す
前記の段落B)による粗製PSA 1000gを、塔に毎時で連続的に供給した(a)。この期間内に、前記塔に粗製PSAあたり720kJ/kgのエネルギー量を供給した。530gの還流(b)、塔頂での0.17barの絶対圧、塔頂で198℃及び塔底で238℃の温度で、同じ時間内に、精製されたPSA 970gを、221℃で側部抜出部を経て取り出し、凝縮させ、かつ単離した(c)。前記塔中の還流比は、それに応じて0.53であり、かつそのように精製されたPSAの収率は、塔に供給された粗製PSAを基準として、97.8質量%であった。(d)を経ての頂部抜出しは、冷トラップ中へ凝縮され、かつ約7gであり;(e)を経ての底部抜出しは約15gであり、かつ高沸成分及び蒸留できない含分を含有していた。側部抜出部を経て(c)で単離されたPSAの分析により、質量に基づく次の組成が得られた:
PSA 99.97質量%
安息香酸 15ppm
無水マレイン酸 <10ppm
シトラコン酸無水物 <10ppm
フタル酸 0.02質量%
及びその他の物質 100質量%までの残余。
本発明による第一実施例
前記の段落B)による粗製PSA 1150gを、塔に毎時で連続的に供給した(a)。この期間内に、塔に690kJ/kgのエネルギー量を供給した。510gの還流(b)、塔頂での150mbarの絶対圧、塔頂で192℃及び塔底で235℃の温度で、同じ時間内に精製されたPSA 1130gを224℃で側部抜出部を経て取り出し、凝縮させ、かつ単離した(c)。前記塔中の還流比は、それに応じて0.44であり、かつそのように精製されたPSAの収率は、塔に供給された粗製PSAを基準として、99.0質量%であった。(d)を経る頂部抜出しは、冷トラップ中へ凝縮され、かつ約5gであり;(e)を経る底部抜出しは約15gであり、かつ高沸成分及び蒸留できない含分を含有していた。側部抜出部を経て(c)で単離されたPSAの分析により、質量に基づく次の組成が得られた:
PSA 99.97質量%
安息香酸 13ppm
無水マレイン酸 <10ppm
シトラコン酸無水物 <10ppm
フタル酸 0.02質量%
及びその他の物質 100質量%までの残余。
本発明による第二実施例
前記の段落B)による粗製PSA 850gを、塔に毎時で連続的に供給した(a)。この期間内に、塔に675kJ/kgのエネルギー量を供給した。330gの還流(b)、塔頂での125mbarの絶対圧、塔頂で184℃及び塔底で232℃の温度で、同じ時間内に精製されたPSA 840gを220℃で側部抜出部を経て取り出し、凝縮させ、かつ単離した(c)。塔中の還流比は、それに応じて0.39であり、かつそのように精製されたPSAの収率は、塔に供給された粗製PSAを基準として、99.6質量%であった。(d)を経る頂部抜出しは、冷トラップ中へ凝縮され、かつ約3gであり;(e)を経る底部抜出しは約7gであり、かつ高沸成分及び蒸留できない含分を含有していた。側部抜出部を経て(c)で単離されたPSAの分析により、質量に基づく次の組成が得られた:
PSA 99.97質量%
安息香酸 <10ppm
無水マレイン酸 <10ppm
シトラコン酸無水物 <10ppm
フタル酸 0.02質量%
及びその他の物質 100質量%までの残余。
Claims (5)
- 減圧での粗製無水フタル酸の蒸留による精製により規格に適合した無水フタル酸を製造する方法であって、その際、粗製無水フタル酸を、側部抜出部の上方で蒸留塔に供給し、低沸成分を、塔の頂部で又は塔の頂部の付近で抜き出し、かつ規格に適合した無水フタル酸を、前記塔の側部抜出部から取り出す方法であって、
前記蒸留塔中への粗製無水フタル酸の供給管の上方に存在する理論分離段の数が10〜20である蒸留塔を使用し、かつ塔を0.25〜0.45の還流比で操作することを特徴とする、規格に適合した無水フタル酸の製造方法。 - 蒸留塔中への粗製無水フタル酸の供給管の上方に存在する理論分離段の数が10〜15である蒸留塔を使用する、請求項1記載の方法。
- 規格に適合した無水フタル酸を、蒸留塔の側部抜出部からガス状の形で取り出す、請求項1記載の方法。
- 蒸留塔として流下薄膜型蒸発器と共に操作される段塔を使用する、請求項1記載の方法。
- 蒸留塔として、側部抜出部で塔の内部又は外部に液滴分離器が取り付けられている段塔を使用する、請求項1記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005000957.3 | 2005-01-07 | ||
DE102005000957A DE102005000957A1 (de) | 2005-01-07 | 2005-01-07 | Verfahren zur Herstellung von spezifikationsgerechtem Phthalsäureanhydrid |
PCT/EP2005/014159 WO2006072463A1 (de) | 2005-01-07 | 2005-12-31 | Verfahren zur herstellung von spezifikationsgerechtem phthalsäureanhydrid |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008526799A JP2008526799A (ja) | 2008-07-24 |
JP5065048B2 true JP5065048B2 (ja) | 2012-10-31 |
Family
ID=36199908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007549831A Active JP5065048B2 (ja) | 2005-01-07 | 2005-12-31 | 規格に適合した無水フタル酸の製造方法 |
Country Status (11)
Country | Link |
---|---|
US (1) | US7619098B2 (ja) |
EP (1) | EP1838405B1 (ja) |
JP (1) | JP5065048B2 (ja) |
KR (1) | KR101278759B1 (ja) |
CN (1) | CN100493662C (ja) |
AT (1) | ATE403478T1 (ja) |
DE (2) | DE102005000957A1 (ja) |
ES (1) | ES2310373T3 (ja) |
MX (1) | MX2007008175A (ja) |
MY (1) | MY140932A (ja) |
WO (1) | WO2006072463A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102078700A (zh) * | 2009-12-01 | 2011-06-01 | 河南宝硕焦油化工有限公司 | 一种负压蒸馏塔 |
US20150014150A1 (en) * | 2013-07-11 | 2015-01-15 | Celanese Acetate Llc | Process for Energy Recovery in Purifying Carboxylic Anhydride for Manufacturing Cellulose Esters |
US20150014148A1 (en) * | 2013-07-11 | 2015-01-15 | Celanese Acetate Llc | Process for Energy Recovery in Manufacturing Cellulose Esters |
CN108392899B (zh) * | 2018-03-15 | 2020-08-18 | 濮阳市盛源石油化工(集团)有限公司 | 一种脱除1,2-环己烷二甲酸的装置及其工艺 |
KR102351698B1 (ko) | 2020-02-03 | 2022-01-13 | 성동윤 | 하수관 청소 장치 |
CN111349064B (zh) * | 2020-03-04 | 2022-04-19 | 北京泽华化学工程有限公司 | 一种利用隔壁塔精馏分离粗苯酐混合物的工艺 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1768817B1 (de) * | 1968-07-03 | 1972-04-27 | Zieren Chemiebau Gmbh Dr A | Verfahren zur Reinigung von rohem Phthalsaeureanhydrid durch Destillation |
US4008255A (en) * | 1973-03-17 | 1977-02-15 | Basf Aktiengesellschaft | Recovery of phthalic anhydride |
AU564712B2 (en) * | 1983-03-16 | 1987-08-20 | Chemische Werke Huls A.G. | Method for separating naphthoquinone from phthalic anhydride |
DE19939629A1 (de) * | 1999-08-20 | 2001-02-22 | Basf Ag | Verfahren zur Herstellung von spezifikationsgerechtem Phthalsäureanhydrid |
DE10106664A1 (de) * | 2001-02-12 | 2002-08-14 | Basf Ag | Verfahren zur Herstellung von spezifikationsgerechtem Phthalsäureanhydrid |
SI1233012T1 (en) * | 2001-02-12 | 2003-10-31 | Basf Aktiengesellschaft | Method for producing phthalic anhydride according to specifications |
-
2005
- 2005-01-07 DE DE102005000957A patent/DE102005000957A1/de not_active Withdrawn
- 2005-12-31 AT AT05821914T patent/ATE403478T1/de not_active IP Right Cessation
- 2005-12-31 MX MX2007008175A patent/MX2007008175A/es active IP Right Grant
- 2005-12-31 EP EP05821914A patent/EP1838405B1/de active Active
- 2005-12-31 DE DE502005004980T patent/DE502005004980D1/de active Active
- 2005-12-31 WO PCT/EP2005/014159 patent/WO2006072463A1/de active IP Right Grant
- 2005-12-31 ES ES05821914T patent/ES2310373T3/es active Active
- 2005-12-31 CN CNB2005800461558A patent/CN100493662C/zh active Active
- 2005-12-31 US US11/813,181 patent/US7619098B2/en active Active
- 2005-12-31 KR KR1020077018024A patent/KR101278759B1/ko active IP Right Grant
- 2005-12-31 JP JP2007549831A patent/JP5065048B2/ja active Active
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2006
- 2006-01-06 MY MYPI20060062A patent/MY140932A/en unknown
Also Published As
Publication number | Publication date |
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KR20070095389A (ko) | 2007-09-28 |
CN100493662C (zh) | 2009-06-03 |
DE102005000957A1 (de) | 2006-07-20 |
MY140932A (en) | 2010-02-12 |
US7619098B2 (en) | 2009-11-17 |
MX2007008175A (es) | 2007-08-06 |
ATE403478T1 (de) | 2008-08-15 |
EP1838405A1 (de) | 2007-10-03 |
KR101278759B1 (ko) | 2013-06-25 |
CN101098737A (zh) | 2008-01-02 |
US20080207925A1 (en) | 2008-08-28 |
DE502005004980D1 (de) | 2008-09-18 |
WO2006072463A1 (de) | 2006-07-13 |
ES2310373T3 (es) | 2009-01-01 |
JP2008526799A (ja) | 2008-07-24 |
EP1838405B1 (de) | 2008-08-06 |
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