GB1065179A - Process for the isolation of colourless formic acid from acetic acid-containing oxidation products of paraffinic hydrocarbons or mixtures thereof with cycloaliphatic hydrocarbons - Google Patents
Process for the isolation of colourless formic acid from acetic acid-containing oxidation products of paraffinic hydrocarbons or mixtures thereof with cycloaliphatic hydrocarbonsInfo
- Publication number
- GB1065179A GB1065179A GB461865A GB461865A GB1065179A GB 1065179 A GB1065179 A GB 1065179A GB 461865 A GB461865 A GB 461865A GB 461865 A GB461865 A GB 461865A GB 1065179 A GB1065179 A GB 1065179A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formic acid
- acetic acid
- hydrocarbons
- oxidation products
- mixture
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
- C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Formic acid is separated from acetic acid, isopropenyl methyl ketone and other components present in the oxidation products of aliphatic and cycloaliphatic hydrocarbons, by submitting the anhydrous oxidation mixture to distillation in a fractionating column in the presence of 1-chlorobutane. A mixture of formic acid and 1-chlorobutane distils over, and the condensate separates into two layers. The formic acid layer is purified by distillation in a second column, and the entrainer layer is returned to the head of the first column. The mixture withdrawn from the base of the first column contains substantially all the acetic acid and isopropenyl methyl ketone present in the original mixture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC32043A DE1204214B (en) | 1964-02-04 | 1964-02-04 | Process for isolating colorless formic acid from oxidates containing acetic acid of paraffin hydrocarbons or their mixtures with cycloaliphatic hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1065179A true GB1065179A (en) | 1967-04-12 |
Family
ID=7020112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB461865A Expired GB1065179A (en) | 1964-02-04 | 1965-02-03 | Process for the isolation of colourless formic acid from acetic acid-containing oxidation products of paraffinic hydrocarbons or mixtures thereof with cycloaliphatic hydrocarbons |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1204214B (en) |
| GB (1) | GB1065179A (en) |
| NL (1) | NL6501363A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19934410C1 (en) | 1999-07-22 | 2000-12-14 | Consortium Elektrochem Ind | Separation and purification of aqueous mixtures of acetic acid, formic acid and high boiling fractions uses apparatus with separation and distillation columns containing organic solvent |
| DE19934411C1 (en) | 1999-07-22 | 2001-03-22 | Consortium Elektrochem Ind | Process for the separation and purification of an aqueous mixture of the main components acetic acid and formic acid |
| DE10065466A1 (en) * | 2000-12-28 | 2002-07-18 | Consortium Elektrochem Ind | Process for the separation of an aqueous mixture of the main components acetic acid and formic acid |
-
1964
- 1964-02-04 DE DEC32043A patent/DE1204214B/en active Pending
-
1965
- 1965-02-03 GB GB461865A patent/GB1065179A/en not_active Expired
- 1965-02-03 NL NL6501363A patent/NL6501363A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6501363A (en) | 1965-08-05 |
| DE1204214B (en) | 1965-11-04 |
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