SE9800957L - Process for working up a synthesis solution comprising a 1,3-dioxane carboxylic acid - Google Patents

Process for working up a synthesis solution comprising a 1,3-dioxane carboxylic acid

Info

Publication number
SE9800957L
SE9800957L SE9800957A SE9800957A SE9800957L SE 9800957 L SE9800957 L SE 9800957L SE 9800957 A SE9800957 A SE 9800957A SE 9800957 A SE9800957 A SE 9800957A SE 9800957 L SE9800957 L SE 9800957L
Authority
SE
Sweden
Prior art keywords
synthesis solution
carboxylic acid
residue
organic phase
evaporated
Prior art date
Application number
SE9800957A
Other languages
Swedish (sv)
Other versions
SE511699C2 (en
SE9800957D0 (en
Inventor
Lars Erlandsson
Original Assignee
Perstorp Ab
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 Perstorp Ab filed Critical Perstorp Ab
Priority to SE9800957A priority Critical patent/SE511699C2/en
Publication of SE9800957D0 publication Critical patent/SE9800957D0/en
Publication of SE9800957L publication Critical patent/SE9800957L/en
Publication of SE511699C2 publication Critical patent/SE511699C2/en

Links

Classifications

    • 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
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

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

Abstract

The synthesis solution is acidifed, then evaporated to achieve a phase separation, and then the organic phase is evaporated to form a residue which is distilled to yield the acid. A method for processing an optionally partially evaporated aqueous synthesis solution containing at least one 1,3-dioxane carboxylic acid, comprises the following steps : (1) acidifying the synthesis solution ; (2) evaporating the acidified solution until it separates into an upper organic phase and a lower aqueous/salt phase ; (3) separating the organic phase and evaporating to form an essentially anhydrous and/or solvent-free residue; (4) distilling the residue at low pressure and a temperature governed by the b.pt. of the 1,3-dioxane carboxylic acid, to give the acid in pure form as a distillate.
SE9800957A 1998-03-23 1998-03-23 Recovery of 1,3-dioxane carboxylic acids from synthesis solutions containing tri or polyols or di, tri or polyhydroxyfunctional carboxylic acids SE511699C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9800957A SE511699C2 (en) 1998-03-23 1998-03-23 Recovery of 1,3-dioxane carboxylic acids from synthesis solutions containing tri or polyols or di, tri or polyhydroxyfunctional carboxylic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800957A SE511699C2 (en) 1998-03-23 1998-03-23 Recovery of 1,3-dioxane carboxylic acids from synthesis solutions containing tri or polyols or di, tri or polyhydroxyfunctional carboxylic acids

Publications (3)

Publication Number Publication Date
SE9800957D0 SE9800957D0 (en) 1998-03-23
SE9800957L true SE9800957L (en) 1999-09-24
SE511699C2 SE511699C2 (en) 1999-11-08

Family

ID=20410644

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800957A SE511699C2 (en) 1998-03-23 1998-03-23 Recovery of 1,3-dioxane carboxylic acids from synthesis solutions containing tri or polyols or di, tri or polyhydroxyfunctional carboxylic acids

Country Status (1)

Country Link
SE (1) SE511699C2 (en)

Also Published As

Publication number Publication date
SE511699C2 (en) 1999-11-08
SE9800957D0 (en) 1998-03-23

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