IN2015DN02401A - - Google Patents

Info

Publication number
IN2015DN02401A
IN2015DN02401A IN2401DEN2015A IN2015DN02401A IN 2015DN02401 A IN2015DN02401 A IN 2015DN02401A IN 2401DEN2015 A IN2401DEN2015 A IN 2401DEN2015A IN 2015DN02401 A IN2015DN02401 A IN 2015DN02401A
Authority
IN
India
Prior art keywords
cyclic diester
glycolid
contaminant
recovering
recovered
Prior art date
Application number
Inventor
Rainer Hagen
Udo Mühlbauer
Original Assignee
Uhde Inventa Fischer Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uhde Inventa Fischer Gmbh filed Critical Uhde Inventa Fischer Gmbh
Publication of IN2015DN02401A publication Critical patent/IN2015DN02401A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B01D7/02—Crystallisation directly from the vapour phase
    • 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
    • B01D3/10—Vacuum distillation
    • B01D3/101—Recirculation of the fluid used as fluid working medium in a vacuum creating device
    • 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
    • B01D3/10—Vacuum distillation
    • B01D3/105—Vacuum distillation with the use of an ejector for creating the vacuum, the ejector being placed between evaporator or distillation devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0045—Vacuum condensation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/785—Preparation processes characterised by the apparatus used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying

Abstract

The invention relates to a device and a method for removing and recovering a cyclic diester , in particular dilactide or glycolid,e from polymer melts that contain the cyclic diester as a contaminant. The device and the method according to the invention allow the cyclic diester to be recovered with high yield and simultaneously high purity.
IN2401DEN2015 2012-12-18 2013-10-17 IN2015DN02401A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12197885.2A EP2746313B1 (en) 2012-12-18 2012-12-18 Apparatus and method for separating a cyclic diester from polymer melts
PCT/EP2013/071674 WO2014095116A1 (en) 2012-12-18 2013-10-17 Device and method for removing a cyclic diester from polymer melts

Publications (1)

Publication Number Publication Date
IN2015DN02401A true IN2015DN02401A (en) 2015-09-04

Family

ID=47561144

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2401DEN2015 IN2015DN02401A (en) 2012-12-18 2013-10-17

Country Status (11)

Country Link
US (1) US10322358B2 (en)
EP (1) EP2746313B1 (en)
KR (1) KR101982543B1 (en)
CN (2) CN104995233B (en)
BR (1) BR112015014084B1 (en)
EA (1) EA028421B1 (en)
ES (1) ES2649369T3 (en)
IN (1) IN2015DN02401A (en)
MX (1) MX366117B (en)
TW (1) TWI609009B (en)
WO (1) WO2014095116A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746313B1 (en) 2012-12-18 2017-08-30 Uhde Inventa-Fischer GmbH Apparatus and method for separating a cyclic diester from polymer melts
RU2621342C1 (en) * 2016-07-29 2017-06-02 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (ТГУ, НИ ТГУ) Receiver of vacuum chamber reactor of synthesis of glycolide and lactid
EP3318590B1 (en) 2016-11-08 2020-08-05 thyssenkrupp AG Method for the separation of volatile compounds from viscous products having a thin film evaporator
US10358540B2 (en) * 2017-06-09 2019-07-23 GM Global Technology Operations LLC Process and system for reducing volatile compound emissions from a product
US10266512B2 (en) 2017-08-10 2019-04-23 Novus International, Inc. Processes for preparing heteroatom containing cyclic dimers
DE102018120988C5 (en) 2018-08-28 2023-01-12 Technip Zimmer Gmbh Process and device for the production of low-extract polyamide 6
CN112892147B (en) * 2021-01-30 2022-05-13 成都易态科技有限公司 Method for treating mixed gas
CN112807921B (en) * 2021-01-30 2022-05-13 成都易态科技有限公司 Mixed gas processing system
CN112892097B (en) * 2021-01-30 2022-05-13 成都易态科技有限公司 Method for treating mixed gas
CN114146442A (en) * 2021-12-14 2022-03-08 中国船舶重工集团公司第七0三研究所 Vacuum rotational flow exchange device and control method thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023350A (en) * 1990-05-24 1991-06-11 E. I. Du Pont De Nemours And Company Process for the purification of cyclic esters
US5136017A (en) 1991-02-22 1992-08-04 Polysar Financial Services S.A. Continuous lactide polymerization
US5770682A (en) 1995-07-25 1998-06-23 Shimadzu Corporation Method for producing polylactic acid
JP3330284B2 (en) * 1996-07-03 2002-09-30 株式会社神戸製鋼所 Method for producing polylactic acid
EP0961800B1 (en) 1997-02-14 2002-12-11 Fortum Oil and Gas Oy Method for the removal and recovery of lactide from polylactide
DE10020898B4 (en) 2000-04-20 2004-02-05 Inventa-Fischer Gmbh Process for the production of polylactic acid and device therefor
EP2030679A1 (en) * 2007-09-03 2009-03-04 Uhde Inventa-Fischer GmbH Polymerisation reactor, polymerisation device, method for manufacturing biodegradable polyester and applications
EP2055730B1 (en) 2007-10-29 2013-02-27 Hitachi Plant Technologies, Ltd. Polymer producing method and apparatus and polymer degassing method and apparatus
JP4670901B2 (en) 2008-05-27 2011-04-13 株式会社日立プラントテクノロジー Polylactic acid production apparatus and method
JP2014511150A (en) * 2011-02-18 2014-05-12 スルザー ケムテック アクチェンゲゼルシャフト Process for producing polyhydroxycarboxylic acid
CN202052518U (en) 2011-03-19 2011-11-30 友邦（江苏）聚氨酯新材料有限公司 Vacuum system for producing polyether glycol
EP2559725A1 (en) 2011-08-19 2013-02-20 Uhde Inventa-Fischer GmbH Method and device for recovery of lactide from polylactide and glycolide from polyglycolide
ES2599165T3 (en) 2012-10-29 2017-01-31 Uhde Inventa-Fischer Gmbh Process for the preparation of a high molecular weight polyester or copolyester as well as polymeric mixtures containing them
EP2746313B1 (en) 2012-12-18 2017-08-30 Uhde Inventa-Fischer GmbH Apparatus and method for separating a cyclic diester from polymer melts

Also Published As

Publication number Publication date
BR112015014084A2 (en) 2017-07-11
CN104995233B (en) 2017-05-10
MX2015007606A (en) 2015-10-22
EA028421B1 (en) 2017-11-30
TW201434823A (en) 2014-09-16
CN106977492B (en) 2019-10-18
KR101982543B1 (en) 2019-05-27
US20150329516A1 (en) 2015-11-19
EP2746313B1 (en) 2017-08-30
KR20150118083A (en) 2015-10-21
MX366117B (en) 2019-06-27
EP2746313A1 (en) 2014-06-25
CN106977492A (en) 2017-07-25
TWI609009B (en) 2017-12-21
BR112015014084B1 (en) 2021-08-31
EA201590365A1 (en) 2015-09-30
CN104995233A (en) 2015-10-21
US10322358B2 (en) 2019-06-18
ES2649369T3 (en) 2018-01-11
WO2014095116A1 (en) 2014-06-26

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