GB1133388A - Production of pure anhydrous dioxolane-(1,3) - Google Patents
Production of pure anhydrous dioxolane-(1,3)Info
- Publication number
- GB1133388A GB1133388A GB1403266A GB1403266A GB1133388A GB 1133388 A GB1133388 A GB 1133388A GB 1403266 A GB1403266 A GB 1403266A GB 1403266 A GB1403266 A GB 1403266A GB 1133388 A GB1133388 A GB 1133388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dioxolane
- pure anhydrous
- formaldehyde
- march
- alcohol
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
1,133,388. Preparation of pure anhydrous dioxolane-(1,3). BADISCHE ANILIN- & SODA-FABRIK A.G. 30 March, 1966 [31 March, 1965], No. 14032/66. Heading C2C. Pure anhydrous dioxolane-(1,3) is prepared by mixing an aqueous solution of formaldehyde or a polymer thereof, with a more than stoichiometric amount of an alcohol of at least 4 carbon atoms which does not have unlimited miscibility with water at ambient temperature and transacetalating the resulting formal with ethylene glycol. The alcohol is preferably butanol or isobutanol in an amount of 200-1000 moles per cent based on the formaldehyde in the presence of a strong acid (1 to 10% by weight) or an acid ion exchanger (1 to 20%) as a catalyst at temperatures between 20‹ and 100‹ C. The water formed may be removed by azeotropic distillation, and the transacetalation is suitably effected by an excess of ethylene glycol (up to 300 moles per cent based on the formal).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0081250 | 1965-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1133388A true GB1133388A (en) | 1968-11-13 |
Family
ID=6981020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1403266A Expired GB1133388A (en) | 1965-03-31 | 1966-03-30 | Production of pure anhydrous dioxolane-(1,3) |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB1133388A (en) |
NL (1) | NL6603978A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857759A (en) * | 1972-06-22 | 1974-12-31 | Montedison Spa | Process for purifying 1,3-dioxolane by treatment with nh{hd 3 {l and distillation with cyclohexane |
EP2331490A2 (en) * | 2008-08-20 | 2011-06-15 | Futurefuel Chemical Company | Preparation of dibutoxymethane |
-
1966
- 1966-03-25 NL NL6603978A patent/NL6603978A/xx unknown
- 1966-03-30 GB GB1403266A patent/GB1133388A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857759A (en) * | 1972-06-22 | 1974-12-31 | Montedison Spa | Process for purifying 1,3-dioxolane by treatment with nh{hd 3 {l and distillation with cyclohexane |
EP2331490A2 (en) * | 2008-08-20 | 2011-06-15 | Futurefuel Chemical Company | Preparation of dibutoxymethane |
EP2331490A4 (en) * | 2008-08-20 | 2012-09-26 | Futurefuel Chemical Co | Preparation of dibutoxymethane |
Also Published As
Publication number | Publication date |
---|---|
NL6603978A (en) | 1966-10-03 |
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