BR0317055A - Processo contìnuo de preparo de lactato de etila - Google Patents

Processo contìnuo de preparo de lactato de etila

Info

Publication number
BR0317055A
BR0317055A BR0317055-1A BR0317055A BR0317055A BR 0317055 A BR0317055 A BR 0317055A BR 0317055 A BR0317055 A BR 0317055A BR 0317055 A BR0317055 A BR 0317055A
Authority
BR
Brazil
Prior art keywords
ethanol
ethyl lactate
water
esterification
lactic acid
Prior art date
Application number
BR0317055-1A
Other languages
English (en)
Inventor
Georges Martino-Gauchi
Remy Teissier
Original Assignee
Arkema
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 Arkema filed Critical Arkema
Publication of BR0317055A publication Critical patent/BR0317055A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • 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
    • C07C67/62—Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
    • C07C69/675—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
    • C07C69/68—Lactic acid esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

"PROCESSO CONTìNUO DE PREPARO DE LACTATO DE ETILA". A invenção se refere a um processo contínuo de preparo de lactato de etila por esterificação de ácido láctico por meio do etanol, em presença de um catalisador que consiste em fazer reagir esse ácido láctico com o etanol, segundo uma relação molar inicial etanol/ácido láctico pelo menos igual a 2,5; em presença de um catalisador, ao refluxo do meio reacional que se situa a aproximadamente 100<198>C, sob uma pressão absoluta que vai de 150 a 300 kPa, esse processo sendo caracterizado pelo fato de se extrair em contínuo, do meio reacional de esterificação, uma mistura gasosa água - etanol próxima do azeótropo; depois que se desidrata essa mistura gasosa diretamente por meio de peneiras moleculares, depois que se recupera dessa desidratação um fluxo gasoso de etanol, podendo ser reciclado no meio reacional de esterificação e um fluxo constituído de água e de etanol que é submetido a uma destilação do qual se obtém água e um azeótropo água -etanol que é injetado na cabeça da coluna de destilação da mistura gasosa extraída do meio reacional de esterificação; depois que se extrai em contínuo o lactato de etila bruto que é submetido a uma purificação da qual se obtém um lactato de etila de elevada pureza e produtos pesados.
BR0317055-1A 2002-12-05 2003-12-05 Processo contìnuo de preparo de lactato de etila BR0317055A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0215347A FR2848208B1 (fr) 2002-12-05 2002-12-05 Procede continu de preparation de lactate d'ethyle
PCT/FR2003/003599 WO2004052826A2 (fr) 2002-12-05 2003-12-05 Procede continu de preparation de lactate d'ethyle

Publications (1)

Publication Number Publication Date
BR0317055A true BR0317055A (pt) 2005-10-25

Family

ID=32320009

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0317055-1A BR0317055A (pt) 2002-12-05 2003-12-05 Processo contìnuo de preparo de lactato de etila

Country Status (11)

Country Link
US (1) US7297809B2 (pt)
EP (1) EP1581473A2 (pt)
JP (1) JP2006509025A (pt)
KR (1) KR100698817B1 (pt)
CN (1) CN1326826C (pt)
AU (1) AU2003298422B2 (pt)
BR (1) BR0317055A (pt)
CA (1) CA2507916A1 (pt)
FR (1) FR2848208B1 (pt)
MX (1) MXPA05005961A (pt)
WO (1) WO2004052826A2 (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5470535B2 (ja) * 2006-09-04 2014-04-16 吸着技術工業株式会社 吸着剤を利用した共沸混合物形成性成分からの水分の除去方法
JP4922804B2 (ja) * 2006-09-08 2012-04-25 日立造船株式会社 含水有機化合物の脱水方法
WO2008098581A1 (en) * 2007-02-12 2008-08-21 Nordbiochem OÜ A continuous process for the preparation of alkyl esters of lactic acid and aliphatic alcohols
BE1017951A3 (fr) * 2008-07-30 2010-01-12 Galactic Sa Procede continu d'obtention d'un ester lactique.
US20110160480A1 (en) * 2008-07-30 2011-06-30 Galactic Sa Continuous Process for Obtaining a Lactic Ester
BE1018882A3 (fr) * 2009-09-10 2011-10-04 Galactic Sa Procede de recyclage stereospecifique d'un melange de polymeres a base de pla.
KR101140649B1 (ko) * 2009-09-30 2012-05-03 한국화학연구원 암모늄락테이트로부터 알킬락테이트를 직접 제조하는 방법
KR101198866B1 (ko) 2010-12-02 2012-11-07 한국화학연구원 고순도 알킬락테이트 및 젖산의 회수 방법
CN102381973B (zh) * 2011-09-19 2014-01-29 南京大学 一种超高纯度（电子级）乳酸酯类产品的生产工艺
JP2013056341A (ja) * 2012-11-06 2013-03-28 Kyuchaku Gijutsu Kogyo Kk 吸着剤を利用した共沸混合物形成性成分からの水分の除去方法
CN103351299A (zh) * 2013-07-01 2013-10-16 太仓市恒益医药化工原料厂 一种醋酸丙烯酯的生产方法
US9944586B2 (en) * 2013-10-17 2018-04-17 Cargill, Incorporated Methods for producing alkyl hydroxyalkanoates
FR3012447B1 (fr) * 2013-10-29 2017-01-20 Arkema France Procede de production d'esters (meth)acryliques legers
EP3166920A4 (en) * 2014-07-10 2018-03-07 Archer Daniels Midland Company Novel lactic acid recovery process
WO2016061356A1 (en) 2014-10-17 2016-04-21 Cargill, Incorporated Methods for producing an ester of an alpha, beta-unsaturated carboxylic acid
PL229904B1 (pl) 2015-01-08 2018-09-28 Wroclawskie Centrum Badan Eit Spolka Z Ograniczona Odpowiedzialnoscia Sposób otrzymywania estrów kwasu mlekowego i mleczanomlekowego w reakcji alkoholizy poliestru alifatycznego
CN107033000A (zh) * 2016-02-03 2017-08-11 天津中福工程技术有限公司 一种固定床连续液固催化制备乳酸酯的方法
KR101981391B1 (ko) * 2017-03-15 2019-05-23 씨제이제일제당 (주) 알킬 락테이트의 제조 방법
WO2018169181A1 (ko) * 2017-03-15 2018-09-20 씨제이제일제당 (주) 알킬 락테이트의 제조 방법
CN112844249B (zh) * 2020-12-24 2022-10-25 河南金丹乳酸科技股份有限公司 催化酯化制备乳酸乙酯工艺
CN115504958B (zh) * 2022-10-20 2023-12-19 山东寿光巨能金玉米开发有限公司 一种丙交酯与乳酸酯联合生产的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE206373C (pt)
US2406648A (en) * 1942-12-08 1946-08-27 Sealtest Inc Process of preparing water-soluble alkyl lactates
US3132079A (en) * 1960-12-21 1964-05-05 Exxon Research Engineering Co Purification of an organic material by distillation and adsorption
US5210296A (en) * 1990-11-19 1993-05-11 E. I. Du Pont De Nemours And Company Recovery of lactate esters and lactic acid from fermentation broth
US5723639A (en) * 1995-10-16 1998-03-03 University Of Chicago Esterification of fermentation-derived acids via pervaporation
US6229046B1 (en) * 1997-10-14 2001-05-08 Cargill, Incorported Lactic acid processing methods arrangements and products
US6664413B1 (en) * 1998-11-19 2003-12-16 A. E. Staley Manufacturing Co. Process for production of esters
FR2802923B1 (fr) 1999-12-28 2002-03-08 Roquette Freres Procede de preparation d'une composition d'ester d'acide lactique et son utilisation en tant que solvant

Also Published As

Publication number Publication date
FR2848208A1 (fr) 2004-06-11
KR20050085397A (ko) 2005-08-29
US7297809B2 (en) 2007-11-20
FR2848208B1 (fr) 2005-01-14
MXPA05005961A (es) 2006-01-27
CN1326826C (zh) 2007-07-18
US20060014976A1 (en) 2006-01-19
KR100698817B1 (ko) 2007-03-23
CA2507916A1 (fr) 2004-06-24
WO2004052826A3 (fr) 2004-09-02
CN1723187A (zh) 2006-01-18
WO2004052826A2 (fr) 2004-06-24
AU2003298422B2 (en) 2006-11-23
AU2003298422A1 (en) 2004-06-30
EP1581473A2 (fr) 2005-10-05
JP2006509025A (ja) 2006-03-16

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.