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MX2014001326A - Reducing acetals during ethanol separation process. - Google Patents

Reducing acetals during ethanol separation process.

Info

Publication number
MX2014001326A
MX2014001326A MX2014001326A MX2014001326A MX2014001326A MX 2014001326 A MX2014001326 A MX 2014001326A MX 2014001326 A MX2014001326 A MX 2014001326A MX 2014001326 A MX2014001326 A MX 2014001326A MX 2014001326 A MX2014001326 A MX 2014001326A
Authority
MX
Mexico
Prior art keywords
acetal
reducing
separation process
crude product
acetals
Prior art date
Application number
MX2014001326A
Other languages
Spanish (es)
Inventor
R Jay Warner
Victor J Johnston
Lincoln Sarager
David Lee
Radmila Wollrab
Adam Orosco
Original Assignee
Celanese Int Corp
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 Celanese Int Corp filed Critical Celanese Int Corp
Publication of MX2014001326A publication Critical patent/MX2014001326A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
    • C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
    • C07C29/149—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation

Landscapes

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

Abstract

To reduce acetal concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns is operated at a higher pressure to increase the equilibrium constant that favors hydrolysis of the acetal. The crude product may comprise ethanol, acetaldehyde, water and one or more acetals, such as diethyl acetal. The acetal concentration may be reduced thus reducing the need to separate acetal from the crude product.
MX2014001326A 2011-08-03 2011-08-03 Reducing acetals during ethanol separation process. MX2014001326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2011/046491 WO2013019232A1 (en) 2011-08-03 2011-08-03 Reducing acetals during ethanol separation process

Publications (1)

Publication Number Publication Date
MX2014001326A true MX2014001326A (en) 2014-05-30

Family

ID=44630561

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014001326A MX2014001326A (en) 2011-08-03 2011-08-03 Reducing acetals during ethanol separation process.

Country Status (5)

Country Link
EP (1) EP2739598A1 (en)
CN (1) CN103781749A (en)
BR (1) BR112014003783A2 (en)
MX (1) MX2014001326A (en)
WO (1) WO2013019232A1 (en)

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IN192600B (en) 1996-10-18 2004-05-08 Hoechst Celanese Corp
US5993610A (en) 1998-05-04 1999-11-30 Berg; Lloyd Separation of ethyl acetate from ethanol by azeotropic distillation
US6375807B1 (en) 1999-01-28 2002-04-23 Izak Nieuwoudt Separation of ethanol mixtures by extractive distillation
BR0010379A (en) 1999-03-11 2001-12-26 Dan Verser Process for ethanol production
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US7115772B2 (en) 2002-01-11 2006-10-03 Celanese International Corporation Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream
US7005541B2 (en) 2002-12-23 2006-02-28 Celanese International Corporation Low water methanol carbonylation process for high acetic acid production and for water balance control
JP5013879B2 (en) 2004-01-29 2012-08-29 ズィーケム インコーポレイテッド Organic acid recovery
US7208624B2 (en) 2004-03-02 2007-04-24 Celanese International Corporation Process for producing acetic acid
EP2121946A4 (en) 2007-02-09 2012-08-29 Zeachem Inc Energy efficient methods to procuce products
US7923405B2 (en) 2007-09-07 2011-04-12 Range Fuels, Inc. Cobalt-molybdenum sulfide catalyst materials and methods for ethanol production from syngas
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Also Published As

Publication number Publication date
EP2739598A1 (en) 2014-06-11
BR112014003783A2 (en) 2017-03-21
CN103781749A (en) 2014-05-07
WO2013019232A1 (en) 2013-02-07

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