FIELD: chemistry.
SUBSTANCE: invention relates to a method of processing isoprene synthesis intermediate products obtained during condensation of formaldehyde and isobutylene or derivatives thereof, involving decomposition of synthesis intermediate products on a catalyst to obtain isoprene, characterised by that the catalyst used is zirconium, niobium or tantalum phosphate, or said phosphates deposited on an inorganic support, and the process is carried out at 100-200°C, pressure 7-20 atm, with mass flow rate of the liquid-phase isoprene synthesis intermediate products onto the solid-phase catalyst of 0.5-15 g/g h.
EFFECT: use of present invention simplifies the processing method and increases isoprene output.
3 cl, 12 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING ISOPRENE | 2010 |
|
RU2446138C1 |
| METHOD OF PRODUCING ISOPRENE | 2013 |
|
RU2532005C1 |
| METHOD OF PRODUCING ISOPRENE | 2011 |
|
RU2459790C1 |
| METHOD OF PROCESSING METHYL-DIHYDROPROPANE AND/OR BY-PRODUCTS OF SYNTHESIS OF ISOPRENE FROM ISOBUTYLENE AND FORMALDEHYDE | 2007 |
|
RU2330008C1 |
| METHOD OF PROCESSING METHYLDIHYDROPYRAN AND/OR BY-PRODUCTS OF SYNTHESIS OF ISOPRENE FROM ISOBUTYLENE AND FORMALDEHYDE | 2011 |
|
RU2461538C1 |
| METHOD OF OBTAINING ISOPRENE | 2007 |
|
RU2341508C1 |
| METHOD FOR COMBINED PROCESSING OF HIGH-BOILING PRODUCTS AND METHYLDIHYDROPYRAN | 2014 |
|
RU2565765C1 |
| ALUMINOSILICATE-CONTAINING CATALYST | 2015 |
|
RU2585789C1 |
| METHOD OF PROCESSING FRACTION OF HIGH-BOILING PRODUCTS AND PYRAN FRACTION | 2015 |
|
RU2604881C1 |
| METHOD OF PROCESSING ISOPRENE SYNTHESIS BY-PRODUCTS | 2011 |
|
RU2458034C1 |
