DE69415686D1 - Verfahren zum trennen von cyclohexandimethylol und dimethylterephthalate - Google Patents
Verfahren zum trennen von cyclohexandimethylol und dimethylterephthalateInfo
- Publication number
- DE69415686D1 DE69415686D1 DE69415686T DE69415686T DE69415686D1 DE 69415686 D1 DE69415686 D1 DE 69415686D1 DE 69415686 T DE69415686 T DE 69415686T DE 69415686 T DE69415686 T DE 69415686T DE 69415686 D1 DE69415686 D1 DE 69415686D1
- Authority
- DE
- Germany
- Prior art keywords
- separating
- chdm
- dmt
- pet
- pct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract 3
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 title 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 238000006140 methanolysis reaction Methods 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- -1 poly(cyclohexyldimethylene terephthalate) Polymers 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7007—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/701—Longitudinal elements with a non-circular, e.g. rectangular, cross-section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7038—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7055—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/139,672 US5498749A (en) | 1993-10-22 | 1993-10-22 | Process for separating cyclohexane dimethanol from dimethyl terephthalate |
| PCT/US1994/011461 WO1995011218A1 (en) | 1993-10-22 | 1994-10-11 | Process for separating cyclohexane dimethanol from dimethyl terephthalate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE69415686D1 true DE69415686D1 (de) | 1999-02-11 |
Family
ID=22487768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69415686T Expired - Lifetime DE69415686D1 (de) | 1993-10-22 | 1994-10-11 | Verfahren zum trennen von cyclohexandimethylol und dimethylterephthalate |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5498749A (de) |
| EP (1) | EP0724559B1 (de) |
| JP (1) | JPH09504025A (de) |
| AT (1) | ATE175183T1 (de) |
| CA (1) | CA2173991A1 (de) |
| DE (1) | DE69415686D1 (de) |
| WO (1) | WO1995011218A1 (de) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2003101929A1 (ja) * | 2002-06-04 | 2005-09-29 | 株式会社アイエス | ビス（２−ヒドロキシエチル）テレフタレートの精製方法 |
| JP5178211B2 (ja) * | 2008-01-22 | 2013-04-10 | 帝人株式会社 | ペットボトル廃棄物より色相を改善したテレフタル酸ジメチルを回収する方法 |
| US20120214961A1 (en) * | 2011-02-22 | 2012-08-23 | Sabic Innovative Plastics Ip B.V. | Poly(butylene terephthalate) ester compositions, methods of manufacture, and articles thereof |
| US20120214914A1 (en) * | 2011-02-22 | 2012-08-23 | Sabic Innovative Plastics Ip B.V. | Flame retardant poly(butylene terephthalate) ester compositions, methods of manufacture, and articles thereof |
| US20120214913A1 (en) * | 2011-02-22 | 2012-08-23 | Sabic Innovative Plastics Ip B.V. | Impact modified poly(butylene terephthalate) ester compositions, methods of manufacture, and articles thereof |
| US9334360B2 (en) | 2011-07-15 | 2016-05-10 | Sabic Global Technologies B.V. | Color-stabilized biodegradable aliphatic-aromatic copolyesters, methods of manufacture, and articles thereof |
| US8877862B2 (en) | 2011-07-15 | 2014-11-04 | Saudi Basic Industries Corporation | Method for color stabilization of poly(butylene-co-adipate terephthalate |
| US8933162B2 (en) | 2011-07-15 | 2015-01-13 | Saudi Basic Industries Corporation | Color-stabilized biodegradable aliphatic-aromatic copolyesters, methods of manufacture, and articles thereof |
| US20130029068A1 (en) | 2011-07-28 | 2013-01-31 | Eastman Chemical Company | Extrusion blow molded articles |
| US10000588B2 (en) | 2011-07-28 | 2018-06-19 | Eastman Chemical Company | Coating for the inner surface of plastic bottles for protection against degradation from volatile organic compounds |
| WO2013025186A1 (en) | 2011-08-12 | 2013-02-21 | Eastman Chemical Company | Process for the preparation of polyesters with high recycle content |
| US8946345B2 (en) | 2011-08-30 | 2015-02-03 | Saudi Basic Industries Corporation | Method for the preparation of (polybutylene-co-adipate terephthalate) through the in situ phosphorus containing titanium based catalyst |
| US8889820B2 (en) | 2012-02-15 | 2014-11-18 | Saudi Basic Industries Corporation | Amorphous, high glass transition temperature copolyester compositions, methods of manufacture, and articles thereof |
| US8895660B2 (en) | 2012-03-01 | 2014-11-25 | Saudi Basic Industries Corporation | Poly(butylene-co-adipate terephthalate), method of manufacture, and uses thereof |
| US9034983B2 (en) | 2012-03-01 | 2015-05-19 | Saudi Basic Industries Corporation | Poly(butylene-co-adipate terephthalate), method of manufacture and uses thereof |
| US8901243B2 (en) | 2012-03-30 | 2014-12-02 | Saudi Basic Industries Corporation | Biodegradable aliphatic-aromatic copolyesters, methods of manufacture, and articles thereof |
| AU2014365821B2 (en) | 2013-12-20 | 2019-10-03 | Crossroads Extremity Systems, Llc | Polyaxial locking hole |
| EP3166522B1 (de) | 2014-07-10 | 2019-11-20 | Crossroads Extremity Systems, LLC | Knochenimplantat und einsetzvorrichtung |
| US11202626B2 (en) | 2014-07-10 | 2021-12-21 | Crossroads Extremity Systems, Llc | Bone implant with means for multi directional force and means of insertion |
| EP3012244A1 (de) * | 2014-10-24 | 2016-04-27 | Sulzer Chemtech AG | Verfahren und Vorrichtung zur Reinigung von Acrylsäure |
| JP6560434B2 (ja) | 2015-07-13 | 2019-08-14 | クロスローズ エクストリミティ システムズ リミテッド ライアビリティ カンパニー | 動的要素を備える骨プレート |
| US11864753B2 (en) | 2017-02-06 | 2024-01-09 | Crossroads Extremity Systems, Llc | Implant inserter |
| WO2018148284A1 (en) | 2017-02-07 | 2018-08-16 | Crossroads Extremity Systems, Llc | Counter-torque implant |
| KR20220041177A (ko) | 2019-07-29 | 2022-03-31 | 이스트만 케미칼 컴파니 | 열분해 및 가메탄올분해로부터의 재활용된 단량체를 갖는 폴리에스테르의 제조 방법 |
| US20230030777A1 (en) | 2019-12-20 | 2023-02-02 | Eastman Chemical Company | Catalysts for pet methanolysis |
| BR112022013284A2 (pt) | 2020-02-10 | 2022-09-06 | Eastman Chem Co | Método de processamento de plástico de resíduo |
| CN115052728A (zh) | 2020-02-10 | 2022-09-13 | 伊士曼化工公司 | 溶剂分解副产物流的化学回收 |
| US12059183B2 (en) | 2020-07-31 | 2024-08-13 | Crossroads Extremity Systems, Llc | Bone plates with dynamic elements and screws |
| CN112321394A (zh) * | 2020-11-06 | 2021-02-05 | 艾凡佳德(上海)环保科技有限公司 | 一种从回收液中得到乙二醇和二甘醇的方法及设备 |
| USD961081S1 (en) | 2020-11-18 | 2022-08-16 | Crossroads Extremity Systems, Llc | Orthopedic implant |
| US20250002675A1 (en) | 2021-10-06 | 2025-01-02 | Eastman Chemical Company | Production of virgin-quality pet and copolyester raw materials from polyester carpet fibers |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE954151C (de) * | 1954-03-06 | 1956-12-13 | Basf Ag | Verfahren zur Reinigung von Terephthalsaeureestern |
| US3037050A (en) * | 1955-08-05 | 1962-05-29 | Glanzstoff Ag | Regeneration of terephthalic acid dimethyl ester from polyethylene terephthalate |
| NL296330A (de) * | 1962-08-17 | 1900-01-01 | ||
| DE1247291B (de) * | 1964-04-28 | 1967-08-17 | Schwarza Chemiefaser | Verfahren und Vorrichtung zur Herstellung von Dialkylterephthalaten durch Abbau von Polyaethylenglykolterephthalaten |
| US3502711A (en) * | 1966-10-17 | 1970-03-24 | Exxon Research Engineering Co | Purification of dimethylterephthalate |
| US3488298A (en) * | 1966-12-01 | 1970-01-06 | Eastman Kodak Co | Polyester scrap recovery processes |
| AT279547B (de) * | 1967-04-14 | 1970-03-10 | Buchs Metallwerk Ag | Verfahren und Vorrichtung zur Trennung oder Reinigung schmelzflüssiger, flüssiger oder gelöster Stoffe durch fraktioniertes Kristallisieren |
| CH550753A (it) * | 1970-11-26 | 1974-06-28 | Sir Soc Italiana Resine Spa | Procedimento per la depolimerizzazione di polietilentereftalato. |
| US3701741A (en) * | 1971-02-01 | 1972-10-31 | Eastman Kodak Co | Purification of impure scrap poly(ethylene terephthalate) |
| OA05495A (fr) * | 1975-12-16 | 1981-04-30 | Rhone Poulenc Textile | Procédé d'obtention de TEREPHTALATE de DIMETHYLE à partir de déchets de polyester. |
| DE3430555A1 (de) * | 1984-08-20 | 1986-02-27 | Hoechst Ag, 6230 Frankfurt | Verfahren zur abtrennung von dimethylisophthalat und dimethylorthophthalat aus ihrem gemisch mit dimethylterephthalat |
| US4578502A (en) * | 1985-01-22 | 1986-03-25 | Cudmore Warner J G | Polyethylene terephthalate saponification process |
| US5051528A (en) * | 1990-04-24 | 1991-09-24 | Eastman Kodak Company | Recovery process for ethylene glycol and dimethylterephthalate |
| CA2055066A1 (en) * | 1990-11-09 | 1992-05-10 | Robert E. Michel | Recovery of methyl esters of aromatic acids and glycols from thermoplastic polyester scrap |
-
1993
- 1993-10-22 US US08/139,672 patent/US5498749A/en not_active Expired - Fee Related
-
1994
- 1994-10-11 CA CA002173991A patent/CA2173991A1/en not_active Abandoned
- 1994-10-11 JP JP7511963A patent/JPH09504025A/ja active Pending
- 1994-10-11 AT AT94930681T patent/ATE175183T1/de not_active IP Right Cessation
- 1994-10-11 WO PCT/US1994/011461 patent/WO1995011218A1/en not_active Ceased
- 1994-10-11 DE DE69415686T patent/DE69415686D1/de not_active Expired - Lifetime
- 1994-10-11 EP EP94930681A patent/EP0724559B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0724559B1 (de) | 1998-12-30 |
| CA2173991A1 (en) | 1995-04-27 |
| WO1995011218A1 (en) | 1995-04-27 |
| US5498749A (en) | 1996-03-12 |
| ATE175183T1 (de) | 1999-01-15 |
| EP0724559A1 (de) | 1996-08-07 |
| JPH09504025A (ja) | 1997-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69415686D1 (de) | Verfahren zum trennen von cyclohexandimethylol und dimethylterephthalate | |
| ATE182578T1 (de) | Säuberung von polyethylene terephthalaten | |
| DE60042656D1 (de) | Verfahren zur abtrennung und rückgewinnung von dimethylterephthalat und ethylenglykol aus polyesterabfällen | |
| BR0008127A (pt) | Processo de despolimerização e purificação | |
| KR850008352A (ko) | 폴리에스테르 부스러기(屑)의 해중합(解重合)방법 | |
| KR960041251A (ko) | 중합체 혼합물로부터 폴리에스테르 중합체를 회수하는 위한 방법 | |
| ATE120755T1 (de) | Verfahren zum raffinieren organischer lösungsmittel enthaltende rohe produkte aus einem polyol-fettsäure-veresterungsgemisch. | |
| DE69407872D1 (de) | Verfahren zur Gewinnung von Dimethylnaphthalen-2,6-dicarboxylat | |
| DE69215236D1 (de) | Verfahren zum trennen | |
| EP0787708B1 (de) | Rückgewinnung von Glycolen aus Glycol enthaltenden Lösungen aus der Depolymerisierung von Polyestern | |
| BR8706862A (pt) | Processo e aparelho para remover temporariamente um produto de uma serie de produtos que estao sendo supridos sucessivamente por um transportador de suprimento | |
| DE69915987D1 (de) | Verfahren zur Wiedergewinnung von Siliconverbindungen | |
| GB9711484D0 (en) | Recovery of products from toluenediisocyanate residues | |
| ATE136043T1 (de) | Verfahren zur herstellung von ethylen- alkylcarbonsäurevinylester-mischpolymerisaten | |
| DE69509252D1 (de) | Verfahren zur wiederverwertung von aminocarbonsäuren-abfall in amidocarbonsäuren | |
| ATE144527T1 (de) | Verfahren zur reinigung von 3-alpha-7-beta- dihydroxycholansäure | |
| DE3770890D1 (de) | Verfahren zur isomerisierung von unverzweigten kohlenwasserstoffen. | |
| DE59602549D1 (de) | Verfahren zur aufarbeitung von dihydroxyverbindungen enthaltenden rückständen | |
| ATE144491T1 (de) | Verfahren zur rückgewinnung von ethylenglykol aus polyethylenterephthalatherstellung | |
| ATE328861T1 (de) | Ein verfahren zur entfernung von titanoxid und roteisen von den depolymerisationsprodukten, die man durch glycolyse von polyestern, die titanoxid oder roteisen enthalten, mit ethylenglykol erhält | |
| DE69601777D1 (de) | Verfahren zur Entfernung von Titan- oder Vanadiumalkoxid aus flüssigen Kohlenwasserstoffmischungen | |
| RU96123887A (ru) | Способ ингибирования процесса термополимеризации и смолообразования непредельных углеводородов | |
| ES2061918T3 (es) | Procedimiento para la purificacion de 1,2-bis (nicotinamido) propano. | |
| ATE90379T1 (de) | Verfahren zur katalytischen verwandlung von kohlenwasserstoffeinsaetzen. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8332 | No legal effect for de |