FIELD: chemistry.
SUBSTANCE: invention relates to an improved method of reducing concentration of aldehyde in the crude stream of a carbonylation process, involving feeding a crude stream containing a carbonylatable agent selected from a group consisting of methanol, methyl acetate, methyl formate and dimethyl ether or mixture thereof, having primary concentration of aldehydes; and reaction thereof in gaseous phase with a deposited catalyst which contains at least one metal from group 8 to 11, in conditions which facilitate reduction of primary concentration of aldehydes to secondary concentration of aldehydes.
EFFECT: method improves degree of reduction of aldehyde.
28 cl, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CARBONYLATION PRODUCT PRODUCING | 1994 |
|
RU2133731C1 |
| METHOD OF PRODUCTION OF ACETIC ACID BY CARBONYLATION OF DIMETHYL ETHER | 1996 |
|
RU2183619C2 |
| METHOD OF DECREASE AND/OR REMOVAL OF PERMANGANATE-REDUCING COMPOUNDS AND C- ALKYLIODIDE COMPOUNDS | 1997 |
|
RU2181715C2 |
| METHOD OF SYNTHESIS OF C-C-CARBOXYLIC ACID | 1997 |
|
RU2181118C2 |
| REMOVAL OF PERMANGANATE-REDUCING COMPOUNDS FROM CONTINUOUS METHANOL CARBONYLATION PROCESS | 2005 |
|
RU2379279C2 |
| REMOVAL OF REDUCING PERMANGANATE COMPOUNDS FROM PROCESS OF METHANOL CARBONYLATION | 2005 |
|
RU2372321C2 |
| SELECTIVE DEALUMINATION OF ZEOLITES OF MORDENITE STRUCTURE TYPE | 2009 |
|
RU2515729C2 |
| METHOD OF OBTAINING ACETIC ACID | 2003 |
|
RU2336263C2 |
| METHOD FOR CONTINUOUS PRODUCING ACETIC ACID (VARIANTS) AND METHOD FOR TREATMENT OF ACETIC ACID FLOW | 2002 |
|
RU2274632C2 |
| COMPOSITION FOR CARBONYLATION CATALYST | 1993 |
|
RU2103064C1 |
