BRPI0511440A - processo para a preparação de acetais - Google Patents

processo para a preparação de acetais

Info

Publication number
BRPI0511440A
BRPI0511440A BRPI0511440-3A BRPI0511440A BRPI0511440A BR PI0511440 A BRPI0511440 A BR PI0511440A BR PI0511440 A BRPI0511440 A BR PI0511440A BR PI0511440 A BRPI0511440 A BR PI0511440A
Authority
BR
Brazil
Prior art keywords
desorbent
alcohols
aldehydes
moving bed
simulated moving
Prior art date
Application number
BRPI0511440-3A
Other languages
English (en)
Inventor
Alirio Egidio Rodrigues
Viviana Manuela Tenedori Silva
Original Assignee
Univ Do Porto
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 Univ Do Porto filed Critical Univ Do Porto
Publication of BRPI0511440A publication Critical patent/BRPI0511440A/pt
Publication of BRPI0511440B1 publication Critical patent/BRPI0511440B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/48—Preparation of compounds having groups
    • C07C41/50—Preparation of compounds having groups by reactions producing groups
    • C07C41/56—Preparation of compounds having groups by reactions producing groups by condensation of aldehydes, paraformaldehyde, or ketones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/48—Preparation of compounds having groups
    • C07C41/58—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PROCESSO PARA A PREPARAçãO DE ACETAIS A presente invenção é um processo industrial para a preparação de acetais usando um sistema do reator de leito móvel (SMB) para realizar a conversão de reagentes (aldeído e álcool) e simultaneamente, a separação dos produtos da reação (acetal e água) pela adsorção seletiva. O reator de SMB consiste de um conjunto de colunas interconectadas empacotados com um sólido ácido (ou mistura de sólidos ácidos: catalisadores de adsorventes) eficaz para catalisar a reação entre aldeídos e álcoois e para separar os produtos da reação pela adsorção seletiva de pelo menos um produto. Em uma modalidade geral, esse processo envolve (1) alimentar uma mistura de aldeídos e álcoois e um desorvente o qual é o álcool, para um reator de leito móvel estimulado, (2) reagir aldeídos e álcoois para tomar acetais; e (3) remover do reator de leito móvel estimulado duas correntes, uma primeira corrente liquida compreendendo uma solução de acetal no desorvente (rafinato), uma segunda corrente líquida compreendendo a água formada e o desorvente (extrato).
BRPI0511440-3A 2004-05-19 2005-05-17 Processo para a preparação de acetais BRPI0511440B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PT103123 2004-05-19
PT103123A PT103123A (pt) 2004-05-19 2004-05-19 Processo industrial de producao de acetais num reactor adsorptivo de leito movel simulado
PCT/IB2005/051597 WO2005113476A1 (en) 2004-05-19 2005-05-17 Industrial process for acetals production in a simulated moving bed reactor

Publications (2)

Publication Number Publication Date
BRPI0511440A true BRPI0511440A (pt) 2007-12-26
BRPI0511440B1 BRPI0511440B1 (pt) 2014-07-15

Family

ID=35197725

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0511440-3A BRPI0511440B1 (pt) 2004-05-19 2005-05-17 Processo para a preparação de acetais

Country Status (8)

Country Link
US (1) US7488851B2 (pt)
EP (1) EP1748974B1 (pt)
AT (1) ATE396165T1 (pt)
BR (1) BRPI0511440B1 (pt)
DE (1) DE602005007012D1 (pt)
ES (1) ES2306139T3 (pt)
PT (1) PT103123A (pt)
WO (1) WO2005113476A1 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906246B1 (fr) * 2006-09-22 2008-12-12 Arkema France Procede de synthese d'acetals cycliques dans un reacteur a lit mobile simule
FR2907779B1 (fr) * 2006-10-31 2008-12-12 Arkema France Procede de synthese de polyacetals dans un reacteur a lit mobile simule
FR2909669B1 (fr) * 2006-12-11 2009-01-30 Arkema France Procede de synthese d'acetals par transacetalisation dans un reacteur a lit mobile simule
FR2953733B1 (fr) * 2009-12-11 2013-01-18 Inst Francais Du Petrole Lit mobile simule reactif avec catalyseur liquide ou soluble
US9388105B2 (en) 2011-06-24 2016-07-12 Eastman Chemical Company Production of hydroxy ether hydrocarbons by liquid phase hydrogenolysis of cyclic acetals or cyclic ketals
US9056313B2 (en) 2011-06-24 2015-06-16 Eastman Chemical Company Catalysts for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
US8785697B2 (en) 2011-06-24 2014-07-22 Eastman Chemical Company Nickel modified catalyst for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
US8969598B2 (en) 2011-06-24 2015-03-03 Eastman Chemical Company Production of cyclic acetals or ketals using liquid-phase acid catalysts
US8829207B2 (en) 2011-06-24 2014-09-09 Eastman Chemical Company Production of cyclic acetals by reactive distillation
US9000229B2 (en) 2011-06-24 2015-04-07 Eastman Chemical Company Production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
US8829206B2 (en) 2011-06-24 2014-09-09 Eastman Chemical Company Production of cyclic acetals or ketals using solid acid catalysts
KR101645284B1 (ko) * 2014-05-02 2016-08-04 한경대학교 산학협력단 유사이동층 장치 및 그의 온도제어 방법
CN107324977B (zh) * 2017-07-27 2020-09-01 河南蔚源生物科技有限公司 一种乙缩醛膜过滤提纯方法
CN113666808A (zh) * 2020-05-14 2021-11-19 浙江医药股份有限公司新昌制药厂 一种连续合成1,1-二乙氧基丙烷的方法
CN113666807B (zh) * 2020-05-14 2024-01-02 浙江医药股份有限公司新昌制药厂 一种1，1-二乙氧基丙烷的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519540A (en) * 1950-08-22 Bianufacttjre of dietbnbl acetal
DE3403426A1 (de) * 1984-02-01 1985-08-01 Degussa Ag, 6000 Frankfurt Verfahren zur herstellung von acetalen
EP0786444B1 (en) * 1992-04-24 1999-12-22 Showa Denko Kabushiki Kaisha Process for producing acetaldehyde dimethylacetal
DE4404515A1 (de) * 1994-02-12 1995-08-17 Huels Chemische Werke Ag Verfahren zur Herstellung von Acetaldehyddiethylacetal
US5405992A (en) * 1994-04-28 1995-04-11 Uop Process for concurrent esterification and separation using a simulated moving bed
US6518454B1 (en) * 2001-10-12 2003-02-11 Eastman Chemical Company Preparation of esters of carboxylic acids
US6476239B1 (en) * 2002-02-12 2002-11-05 Eastman Chemical Company Process for the preparation of ascorbic acid

Also Published As

Publication number Publication date
US20080287714A1 (en) 2008-11-20
ES2306139T3 (es) 2008-11-01
EP1748974A1 (en) 2007-02-07
ATE396165T1 (de) 2008-06-15
US7488851B2 (en) 2009-02-10
WO2005113476A1 (en) 2005-12-01
DE602005007012D1 (de) 2008-07-03
PT103123A (pt) 2005-11-30
EP1748974B1 (en) 2008-05-21
BRPI0511440B1 (pt) 2014-07-15

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/05/2005, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 10A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2343 DE 01-12-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.