ES2114020T3 - Procedimiento mejorado de recuperacion de tereftalato alcalino o alcalinoterreo y de alquilenglicol a partir de politereftalatos de alquileno. - Google Patents
Procedimiento mejorado de recuperacion de tereftalato alcalino o alcalinoterreo y de alquilenglicol a partir de politereftalatos de alquileno.Info
- Publication number
- ES2114020T3 ES2114020T3 ES93402651T ES93402651T ES2114020T3 ES 2114020 T3 ES2114020 T3 ES 2114020T3 ES 93402651 T ES93402651 T ES 93402651T ES 93402651 T ES93402651 T ES 93402651T ES 2114020 T3 ES2114020 T3 ES 2114020T3
- Authority
- ES
- Spain
- Prior art keywords
- alkaline
- alkylene
- ethylene
- tereftalate
- glycol
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyethers (AREA)
Abstract
SE DESCRIBE UN PROCEDIMIENTO PERFECCIONADO DE TEREFTALATO DE METAL ALCALINO O ALCALINO-TERREO Y DE ALQUILENO-GLICOL, PARTIENDO DE POLITEREFTALATO DE ALQUILENO, EN ESPECIAL DE POLITEREFTALATO DE ETILENO (P.E.T.), ALQUILENO-GLICOL, EN ESPECIAL ETILENO GLICOL, OBTENIDO EN FORMA DE VAPOR DURANTE LA REACCION DE SAPONIFICACION, INICIADA BAJO LA ACCION DE UN AMASAMIENTO INTENSO DE LA MEZCLA DE POLITEREFTALATO DE ALQUILENO Y DEL REACTIVO ALCALINO, A UNA TEMPERATURA DE 100 GLICOL SE RECUPERA EN FORMA GASEOSA MEDIANTE LA IMPULSION POR UN GAS INERTE O MEDIANTE LA EXTRACCION A PRESION REDUCIDA. EL TEREFTALATO ALCALINO O ALCALINOTERREO SE OBTIENE EN FORMA SOLIDA Y ESPOLVOREADORA; PUEDE ALMACENARSE FACILMENTE, TRANSPORTARSE Y VOLVER A DISOLVER, PARA SER PURIFICADO DESPUES DE EVENTUALMENTE TRANSFORMADO EN ACIDO TEREFTALICO O EN UN ESTER.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9213583A FR2697839B1 (fr) | 1992-11-09 | 1992-11-09 | Procédé amélioré de récupération de téréphtalate de métal alcalin et d'alkylène glycol à partir de polytéréphtalates d'alkylènes. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2114020T3 true ES2114020T3 (es) | 1998-05-16 |
Family
ID=9435449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93402651T Expired - Lifetime ES2114020T3 (es) | 1992-11-09 | 1993-10-28 | Procedimiento mejorado de recuperacion de tereftalato alcalino o alcalinoterreo y de alquilenglicol a partir de politereftalatos de alquileno. |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0597751B1 (es) |
JP (1) | JP2824551B2 (es) |
KR (1) | KR100278525B1 (es) |
CN (1) | CN1041515C (es) |
CA (1) | CA2102766A1 (es) |
DE (1) | DE69316545T2 (es) |
ES (1) | ES2114020T3 (es) |
FR (1) | FR2697839B1 (es) |
SG (1) | SG75780A1 (es) |
TW (1) | TW253893B (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5580905A (en) * | 1994-04-28 | 1996-12-03 | United Resource Recovery Corporation | Process for recycling polyesters |
DE69522479T2 (de) * | 1995-12-30 | 2002-05-08 | Sunkyong Ind Ltd | Verfahren zur herstellung von terephtalischer säure |
CN1113846C (zh) * | 1995-12-30 | 2003-07-09 | 鲜京工业股份有限公司 | 生产对苯二甲酸的方法 |
DE69516188T2 (de) * | 1995-12-30 | 2000-11-23 | Sunkyong Ind Ltd | Verfahren zur herstellung von therephthalsäure |
BR9708284A (pt) * | 1996-04-01 | 2000-01-18 | Plastic Techn Inc | Processo para remoção de um contaminante de flocos de rpet. |
FR2767131B1 (fr) * | 1997-08-06 | 1999-10-22 | Tredi | Procede de recuperation d'acide terephtalique et, le cas echeant, de soude a partir d'une solution de polyterephtalate de sodium |
EP1138663B1 (en) * | 2000-02-29 | 2002-10-16 | Massimo Broccatelli | Method for recovery of terephthalic acid from a material containing poly(ethylene terephthalates) |
EP1134211B1 (en) * | 2000-02-29 | 2002-12-18 | Massimo Broccatelli | Method of recovering chemical species by depolymerization of poly(ethylene terephthalate) and related use |
US6720448B2 (en) | 2000-10-11 | 2004-04-13 | Massimo Broccatelli | Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use |
JP2008133398A (ja) * | 2006-11-29 | 2008-06-12 | Toshiba Corp | Petを含む樹脂の熱分解油化処理装置 |
CZ2007469A3 (cs) | 2007-07-13 | 2008-12-29 | Ústav chemických procesu Akademie ved CR | Zpusob chemické depolymerace odpadního polyethylentereftalátu |
DE102018122210B4 (de) | 2018-09-12 | 2023-06-29 | Rittec Umwelttechnik Gmbh | Verfahren und Verwendung einer Vorrichtung zur Wiederaufarbeitung von Polyalkylenterephthalat enthaltenden Abfällen |
DE102019135578A1 (de) * | 2019-12-20 | 2021-06-24 | Rittec Umwelttechnik Gmbh | Verfahren, Vorrichtung und Verwendung zur Wiederaufarbeitung |
DE102020106457A1 (de) * | 2020-03-10 | 2021-09-16 | Rittec Umwelttechnik Gmbh | Verfahren und Vorrichtung zur Wiederaufarbeitung Polykondensat-haltiger Abfälle |
EP4353876A1 (en) * | 2021-06-09 | 2024-04-17 | Universidad Iberoamericana, A.C. | Process for obtaining terephthalic acid and recovering sodium hydroxide from a sodium terephthalate solution produced from reused polyethylene terephthalate (pet) |
FR3124185B1 (fr) * | 2021-06-17 | 2024-04-12 | Ifp Energies Now | Procédé de purification d’un monomere diester terephtalate par adsorption |
FR3124186B1 (fr) * | 2021-06-17 | 2024-04-12 | Ifp Energies Now | Procédé de preparation d’un monomere diester purifie et decolore par dépolymérisation d’une charge polyester |
KR102381508B1 (ko) * | 2021-09-28 | 2022-04-01 | 김 영 범 | 고유점도가 0.75㎗/g 이상인 고중합도의 폴리에틸렌테레프탈레이트를 이용한 테레프탈산의 제조방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1130695A (en) * | 1966-04-18 | 1968-10-16 | Hercules Inc | Production of terephthalic acid by hydrolysis of an alkyl terephthalate |
DD124024A1 (es) * | 1976-02-26 | 1977-02-02 | ||
DE2802125B2 (de) * | 1978-01-19 | 1980-07-17 | Josef A. 7144 Asperg Blach | Schneckenmaschine zum Bearbeiten von festen, flüssigen und zähviskosen Materialien |
DE3014643A1 (de) * | 1980-04-16 | 1981-10-22 | Bayer Ag, 5090 Leverkusen | Gleichsinnig rotierbare doppelschnecke |
US5045122A (en) * | 1989-12-14 | 1991-09-03 | Eastman Kodak Company | Ester hydrolysis and depolymerization of polyester and polycarbonate polymers |
FR2672049A1 (fr) * | 1991-01-30 | 1992-07-31 | Benzaria Jacques | Procede de fabrication de terephtalate de metal alcalin ou alcalino-terreux ou de l'acide terephilique de purete elevee. |
-
1992
- 1992-11-09 FR FR9213583A patent/FR2697839B1/fr not_active Expired - Lifetime
-
1993
- 1993-10-28 DE DE1993616545 patent/DE69316545T2/de not_active Expired - Fee Related
- 1993-10-28 ES ES93402651T patent/ES2114020T3/es not_active Expired - Lifetime
- 1993-10-28 SG SG1996005398A patent/SG75780A1/en unknown
- 1993-10-28 EP EP19930402651 patent/EP0597751B1/fr not_active Expired - Lifetime
- 1993-11-06 TW TW82109301A patent/TW253893B/zh active
- 1993-11-09 JP JP27877493A patent/JP2824551B2/ja not_active Expired - Fee Related
- 1993-11-09 KR KR1019930023663A patent/KR100278525B1/ko not_active IP Right Cessation
- 1993-11-09 CN CN93114457A patent/CN1041515C/zh not_active Expired - Fee Related
- 1993-11-09 CA CA 2102766 patent/CA2102766A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0597751A1 (fr) | 1994-05-18 |
JPH06199734A (ja) | 1994-07-19 |
SG75780A1 (en) | 2000-10-24 |
DE69316545T2 (de) | 1998-07-16 |
CA2102766A1 (fr) | 1994-05-10 |
KR100278525B1 (ko) | 2001-02-01 |
FR2697839B1 (fr) | 1995-01-13 |
CN1090569A (zh) | 1994-08-10 |
JP2824551B2 (ja) | 1998-11-11 |
DE69316545D1 (de) | 1998-02-26 |
TW253893B (es) | 1995-08-11 |
FR2697839A1 (fr) | 1994-05-13 |
EP0597751B1 (fr) | 1998-01-21 |
KR940011427A (ko) | 1994-06-21 |
CN1041515C (zh) | 1999-01-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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