BR9604801A - Processo para a produção e purificação de esteres cìclicos - Google Patents

Processo para a produção e purificação de esteres cìclicos

Info

Publication number
BR9604801A
BR9604801A BR9604801-8A BR9604801A BR9604801A BR 9604801 A BR9604801 A BR 9604801A BR 9604801 A BR9604801 A BR 9604801A BR 9604801 A BR9604801 A BR 9604801A
Authority
BR
Brazil
Prior art keywords
purification
production
cyclic esters
esters
aqueous solvent
Prior art date
Application number
BR9604801-8A
Other languages
English (en)
Inventor
Fudu Miao
Timothy J Eggeman
Original Assignee
Chronopol Inc
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
Priority claimed from US08/417,597 external-priority patent/US5675021A/en
Application filed by Chronopol Inc filed Critical Chronopol Inc
Publication of BR9604801A publication Critical patent/BR9604801A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1942—Details relating to the geometry of the reactor round circular or disk-shaped spherical
    • 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
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

Patente de Invenção: PROCESSO PARA A PRODUçãO E PURIFICAçãO DE éSTERES CìCLICOS". é provido um processo para a produção e purificação de ésteres cíclicos no qual a purificação inclui a introdução de um solvente aquoso em uma composição contendo ésteres cíclicos e permitir que duas fases se formem. Uma primeira fase inclui os ésteres cíclicos e qualquer solvente orgânico e uma segunda fase inclui o solvente aquoso e impurezas.
BR9604801-8A 1995-04-05 1996-04-01 Processo para a produção e purificação de esteres cìclicos BR9604801A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/417,597 US5675021A (en) 1992-03-19 1995-04-05 Method to produce and purify cyclic esters
US08/473,400 US5686630A (en) 1993-09-29 1995-06-06 Purifying cyclic esters by aqueous solvent extraction
PCT/US1996/004465 WO1996031506A1 (en) 1995-04-05 1996-04-01 Method to produce and purify cyclic esters

Publications (1)

Publication Number Publication Date
BR9604801A true BR9604801A (pt) 1999-11-30

Family

ID=27023782

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9604801-8A BR9604801A (pt) 1995-04-05 1996-04-01 Processo para a produção e purificação de esteres cìclicos

Country Status (6)

Country Link
US (2) US5686630A (pt)
JP (2) JPH11503162A (pt)
CN (1) CN1186490A (pt)
AU (1) AU5382496A (pt)
BR (1) BR9604801A (pt)
WO (1) WO1996031494A1 (pt)

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JP4565208B2 (ja) * 2000-03-31 2010-10-20 株式会社クレハ グリコリドの精製方法
KR100801865B1 (ko) * 2000-09-11 2008-02-12 니치유 가부시키가이샤 에스테르의 제조방법
DK1883665T3 (da) 2005-04-22 2017-11-13 Univ Geneve Polylactidsammensætninger og anvendelser deraf
US8859245B2 (en) * 2006-03-29 2014-10-14 Bio-Energy Corporation Method for separation of lactic acid component from lactic acid fermentation liquor, and separation apparatus
US7798736B2 (en) * 2006-07-21 2010-09-21 Hewlett-Packard Development Company, L.P. Media binder arrangements
DE102006055427A1 (de) * 2006-11-22 2008-05-29 Evonik Röhm Gmbh Verfahren zur Herstellung von Tetramethylglycolid
EP2031009A1 (de) 2007-09-03 2009-03-04 Uhde Inventa-Fischer GmbH Reinigungsvorrichtung zur Abtrennung von Dilactid aus Stoffgemischen, Polymerisationsvorrichtung, Verfahren zur Abtrennung von Dilactid aus Stoffgemischen sowie Verwendung
ATE501778T1 (de) 2007-09-03 2011-04-15 Uhde Inventa Fischer Gmbh Verfahren zur reinigung von prozessdämpfen bei der polylactidherstellung
US8268131B2 (en) * 2009-03-24 2012-09-18 Amt International, Inc. Apparatus and method for recovery of acetic acid from an aqueous solution thereof
US8383851B2 (en) * 2010-09-15 2013-02-26 Caravan Ingredients Inc. Lactylate synthesis methods using dilactides
EP2777791A1 (en) * 2013-03-11 2014-09-17 Sulzer Chemtech AG Process and apparatus for purification of a stream containing a cyclic ester of an alpha-hydroxycarboxylic acid
JP6537871B2 (ja) * 2014-04-17 2019-07-03 日本電波工業株式会社 発振器及び発振器アレー
CN105944676B (zh) * 2016-04-26 2019-02-19 张玲 一种呋喃二甲酸庚酯纯化用吸附剂的制备方法
WO2017220524A1 (en) * 2016-06-20 2017-12-28 Total Research & Technology Feluy Single step lactide production process with recovering water by decantation
EP3472146A1 (en) * 2016-06-20 2019-04-24 Total Research & Technology Feluy Single step lactide production process with separate entry for solvent
RU2639705C1 (ru) * 2016-12-20 2017-12-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский химико-технологический университет имени Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) Способ очистки l-лактида
US10266512B2 (en) 2017-08-10 2019-04-23 Novus International, Inc. Processes for preparing heteroatom containing cyclic dimers
CN112079810A (zh) * 2020-09-23 2020-12-15 浙江海诺尔生物材料有限公司 一种纯化丙交酯的方法
CN117916228A (zh) * 2021-09-10 2024-04-19 普拉克生化公司 内消旋丙交酯的纯化方法
CN114181189A (zh) * 2021-12-16 2022-03-15 内蒙古久泰新材料有限公司 一种环状交酯的纯化方法
CN116410177B (zh) * 2022-08-30 2024-01-30 深圳市迈启生物材料有限公司 医用乙交酯的制备方法
US11931686B1 (en) * 2022-09-16 2024-03-19 Carbon Capture Inc. Carbon capture process utilizing inert gas medium to assist thermal desorption

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Also Published As

Publication number Publication date
AU5382496A (en) 1996-10-23
CN1186490A (zh) 1998-07-01
JPH11503162A (ja) 1999-03-23
JP2008120826A (ja) 2008-05-29
US5686630A (en) 1997-11-11
WO1996031494A1 (en) 1996-10-10
US5856523A (en) 1999-01-05

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law