GB987923A - Extractive distillation of acetals - Google Patents

Extractive distillation of acetals

Info

Publication number
GB987923A
GB987923A GB4184361A GB4184361A GB987923A GB 987923 A GB987923 A GB 987923A GB 4184361 A GB4184361 A GB 4184361A GB 4184361 A GB4184361 A GB 4184361A GB 987923 A GB987923 A GB 987923A
Authority
GB
United Kingdom
Prior art keywords
acetal
water
glycol
alcohol
separation
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4184361A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB987923A publication Critical patent/GB987923A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/12—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
    • 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)

Abstract

Aliphatic and cyclic acetals are separated from alcohols and/or water by submitting the mixture of acetal, alcohol and/or water to fractional distillation in the presence of a polyamine, an amino-alcohol, a polyhydric alcohol or a partially etherified polyhydric alcohol, whereby the purified acetal is obtained as distillate. Examples are given relating to the purification of methylal from methanol and/or water, using ethylene glycol, diethylene glycol, triethylene glycol, 1 : 3-butylene glycol, methyl diglycol, ethanolamine, triethanolamine, and triethylene tetramine as extraction agents. Other examples relate to the separation of acetaldehyde-dimethyl acetal from methanol using ethanolamine, and the separation of acetaldehyde-diethyl acetal from propanol using diethylene glycol. Formaldehyde-dibutyl acetal is separated from sec.-octanol by distilling the mixture under reduced pressure with triethylene glycol. The separation of 1 : 3-dioxolane from ethanol and/or water is referred to. Dioxolanes with methyl-, ethyl-, and propyl-substituents are also referred to. Methoxy-ethoxy-methane is mentioned.ALSO:Aliphatic and cyclic acetals are separated from alcohols and/or water by submitting the mixture of acetal, alcohol and/or water to fractional distillation in the presence of a polyamine, an amino-alcohol, a polyhydric alcohol or a partially etherified polyhydric alcohol, whereby the purified acetal is obtained as distillate. Examples are given illustrating the purification of methylol from methyl alcohol and/or water, using ethylene glycol, diethylene glycol, triethylene glycol, 1:3-butylene glycol, methyl di-glycol, ethanolamine, triethanolamine and triethylene tetramine as extraction agents. Other examples relate to the separation of acetaldehyde-dimethyl acetal from methanol using ethanolamine, and the separation of acetaldehyde-diethyl acetal from propanol using diethylene glycol. Formaldehyde-dibutyl acetal is separated from sec. octanol by distilling the mixture under reduced pressure with triethylene glycol. The separation of 1:3-dioxolane from ethanol and/or water is referred to. Dioxolanes with methyl-, ethyl- and propyl-substituents are also referred to. Methoxy-ethoxy-methane is mentioned.
GB4184361A 1960-11-22 1961-11-22 Extractive distillation of acetals Expired GB987923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW28965A DE1127339B (en) 1960-11-22 1960-11-22 Process for the production of alcohol-free and water-free acetals by extractive distillation

Publications (1)

Publication Number Publication Date
GB987923A true GB987923A (en) 1965-03-31

Family

ID=7599104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4184361A Expired GB987923A (en) 1960-11-22 1961-11-22 Extractive distillation of acetals

Country Status (4)

Country Link
BE (1) BE610497A (en)
CH (1) CH421923A (en)
DE (1) DE1127339B (en)
GB (1) GB987923A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2298851A1 (en) * 2008-05-28 2011-03-23 Emanuel Institute of Biochemical Physics of Russian Academy of Sciences (IBCP RAS) Agent for increasing the octane number of a gasoline automobile fuel
CN102093176A (en) * 2010-12-23 2011-06-15 南京师范大学 Method for extracting and separating methylal-methanol mixture by using continuous countercurrent rotating disk
CN102887818A (en) * 2012-10-31 2013-01-23 杨玉峰 Purification technology of industrial-grade methylal
EP2853524A1 (en) * 2013-09-29 2015-04-01 Suzhou OST Advanced Materials Co., Ltd. Reaction system and process for preparing polymethoxy dimethyl ether

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2786823B2 (en) * 1994-10-07 1998-08-13 旭化成工業株式会社 Method for purifying methylal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2298851A1 (en) * 2008-05-28 2011-03-23 Emanuel Institute of Biochemical Physics of Russian Academy of Sciences (IBCP RAS) Agent for increasing the octane number of a gasoline automobile fuel
EP2298851A4 (en) * 2008-05-28 2011-09-28 Emanuel Inst Of Biochemical Physics Of Russian Academy Of Sciences Ibcp Ras Agent for increasing the octane number of a gasoline automobile fuel
CN102093176A (en) * 2010-12-23 2011-06-15 南京师范大学 Method for extracting and separating methylal-methanol mixture by using continuous countercurrent rotating disk
CN102093176B (en) * 2010-12-23 2014-07-30 南京师范大学 Method for extracting and separating methylal-methanol mixture by using continuous countercurrent rotating disk
CN102887818A (en) * 2012-10-31 2013-01-23 杨玉峰 Purification technology of industrial-grade methylal
CN102887818B (en) * 2012-10-31 2016-03-30 杨玉峰 A kind of purifying technique of methylal of technical grade
EP2853524A1 (en) * 2013-09-29 2015-04-01 Suzhou OST Advanced Materials Co., Ltd. Reaction system and process for preparing polymethoxy dimethyl ether

Also Published As

Publication number Publication date
BE610497A (en) 1962-05-21
DE1127339B (en) 1962-04-12
CH421923A (en) 1966-10-15

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