FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing an alcohol solution of an alkali metal alcoholate, which can be used in synthesis of pharmaceutical and agrochemical active substances and as a re-esterification and amidation catalyst. The alcohol solution of an alkali metal alcoholate is obtained from an alkali metal hydroxide and aliphatic alcohols having 1-5 carbon atoms in a reaction column with counterflow of the alcohol and alkali metal hydroxide, wherein reflux ratio of at least 0.05 is established in the reaction column.
EFFECT: disclosed method avoids deposition of solid substance in the area of the reaction column below the feed point of the alkali metal hydroxide solution.
13 cl, 5 ex, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING HIGHLY CONCENTRATED METHYLAL | 2010 |
|
RU2432349C1 |
| METHOD OF PRODUCING POTASSIUM METHYLATE | 2007 |
|
RU2358963C2 |
| METHOD OF EXTRACTING DIETHYLENE GLYCOL AND TRIETHYLENE GLYCOL | 2009 |
|
RU2420509C1 |
| METHOD OF OBTAINING POLYMETHYLOLS | 2010 |
|
RU2518888C2 |
| METHOD OF PREPARING ALKYL-TERT-ALKYL ETHERS | 1992 |
|
RU2068838C1 |
| DEGASSING FORMULA AND THE METHOD OF ITS PREPARATION | 2005 |
|
RU2288016C1 |
| METHOD OF REFINING CRUDE ALCOHOL AND OTHER ALCOHOL-CONTAINING MIXTURES | 1997 |
|
RU2112576C1 |
| METHOD OF PRODUCING METHYLAL (VERSIONS) | 2010 |
|
RU2439048C1 |
| METHOD OF PURIFYING ORGANIC LIQUIDS | 1996 |
|
RU2104731C1 |
| METHOD OF EXTRACTION ISOPRENE | 1979 |
|
SU772074A1 |
