GB967884A - Process of purifying methanol - Google Patents
Process of purifying methanolInfo
- Publication number
- GB967884A GB967884A GB4743962A GB4743962A GB967884A GB 967884 A GB967884 A GB 967884A GB 4743962 A GB4743962 A GB 4743962A GB 4743962 A GB4743962 A GB 4743962A GB 967884 A GB967884 A GB 967884A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methanol
- gas
- water
- gases
- acetylene
- 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
- 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
-
- 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
Methanol, particularly that used as an anti-freeze or solvent medium in the treatment of acetylene gas produced by the cracking of hydrocarbons, is purified of higher acetylenes and aromatic compounds by mixing with water and contacting said mixture, preferably atomized, with an inert gas in countercurrent flow. The water is generally not less than 50% by weight of the mixture and is used, before mixing, to wash the stripping gas leaving the methanol purification zone to recover methanol vapour therefrom. The inert stripping gas may be combustible or incombustible but must contain substantially no oxygen or gases very soluble in water or methanol; specified gases are nitrogen, carbon dioxide and the gaseous hydrocarbon which is to be cracked to form acetylene. In an embodiment impure methanol is passed counter current to an inert gas in a preliminary stripping zone, mixed with water and stripped in counter current by an inert gas in a second zone and then distilled to obtain pure methanol. In the Example the impure methanol was that employed to cool the product gases of the partial combustion of methane, the preliminary stripping gas was synthesis gas (e.g. CO + H2) and the second striping gas was that obtained after fractionating and washing the product gases to remove acetylene.ALSO:Methanol, particularly that used as an antifreeze or solvent medium in the treatment of acetylene gas produced by the cracking of hydrocarbons, is purified of higher acetylenes and aromatic compounds by mixing with water and contacting said mixture, preferably atomized, with an inert gas in countercurrent flow. The water is generally not less than 50% by weight of the mixture and is used, before mixing, to wash the stripping gas leaving the purification zone to recover methanol vapour therefrom. The inert stripping gas may be combustible or incombustible but must contain substantially no oxygen or gases very soluble in water or methanol; specified gases are nitrogen, carbon dioxide and the gaseous hydrocarbon which is to be cracked to form acetylene. In an embodiment impure methanol is passed countercurrent to an inert gas in a preliminary stripping zone, mixed with water and stripped in countercurrent by an inert gas in a second zone and then distilled to obtain pure methanol. In the example the impure methanol was that employed to cool the product gases of the partial combustion of methane, the preliminary stripping gas was "synthesis gas" (i.e. CO+H2) and the second stripping gas was that obtained after fractionating and washing the product gases to remove acetylene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2311061 | 1961-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB967884A true GB967884A (en) | 1964-08-26 |
Family
ID=11203883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4743962A Expired GB967884A (en) | 1961-12-22 | 1962-12-17 | Process of purifying methanol |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE626453A (en) |
| CH (1) | CH435230A (en) |
| ES (1) | ES283615A1 (en) |
| GB (1) | GB967884A (en) |
| SE (1) | SE317659B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434937A (en) * | 1966-10-06 | 1969-03-25 | Allied Chem | Distillation purification of crude synthetic methanol |
-
1962
- 1962-12-17 GB GB4743962A patent/GB967884A/en not_active Expired
- 1962-12-19 CH CH1486762A patent/CH435230A/en unknown
- 1962-12-19 SE SE1370062A patent/SE317659B/xx unknown
- 1962-12-21 BE BE626453A patent/BE626453A/en unknown
- 1962-12-21 ES ES283615A patent/ES283615A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434937A (en) * | 1966-10-06 | 1969-03-25 | Allied Chem | Distillation purification of crude synthetic methanol |
Also Published As
| Publication number | Publication date |
|---|---|
| ES283615A1 (en) | 1963-11-16 |
| CH435230A (en) | 1967-05-15 |
| SE317659B (en) | 1969-11-24 |
| BE626453A (en) | 1963-06-21 |
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