FIELD: natural compounds, chemical technology.
SUBSTANCE: invention relates to technology for preparing substances from the natural resins, in particular, to colophony hydrogenation. Method for catalytic hydrogenation of colophony with gaseous hydrogen is carried out on solid catalysts comprising palladium as a metal under enhanced pressure and temperature in the presence of organic solvent. Hydrogenation reaction is carried out in circulating contour wherein hydrogen is dispersed firstly in colophony alcoholic solution and the prepared gaseous-liquid mixture is passed through the catalytic zone filled with the catalyst comprising the highly porous cellular carrier made of aluminum oxide and prepared by the doubling method of polyurethane foam matrix. Method provides the complete elimination of the catalyst grinding, prolonged exploitation working life of catalyst, elimination of loss in separation of the reaction mass from the catalyst and decreasing the pressure value in the process realization.
EFFECT: improved method for hydrogenation.
1 tbl, 1 dwg, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HIGH-POROSITY CELLULAR CATALYST HAVING ACIDIC PROPERTIES TO MODIFY COLOPHONY | 2004 |
|
RU2279913C1 |
| HIGHLY-POROUS HONEYCOMB CATALYST FOR PROCESSES OF LIQUID-PHASE HYDRATION | 2005 |
|
RU2333795C2 |
| HIGHLY POROUS CELLULAR CATALYST WITH ACIDIC PROPERTIES FOR MODIFYING ROSIN | 2007 |
|
RU2329866C1 |
| METHOD OF PREPARING MONO- AND BIMETALLIC CATALYST AND PROCESSES INVOLVING OXYGEN AND/OR HYDROGEN | 2006 |
|
RU2316394C1 |
| METHOD OF ROSIN PURIFICATION | 2012 |
|
RU2543163C2 |
| CATALYST FOR HYDROCRACKING AND HYDROFINING OF HEAVY OIL RESIDUES, VISCOUS AND HIGH VISCOUS OIL | 2019 |
|
RU2692795C1 |
| METHOD OF PRODUCING MODIFIED ROSIN | 0 |
|
SU1344772A1 |
| CRACKING CATALYST FOR HEAVY OIL RESIDUES, VISCOUS AND HIGH VISCOUS OIL | 2019 |
|
RU2691650C1 |
| CATALYST FOR SELECTIVE HYDROGENATION OF ACETYLENE AND DIENE HYDROCARBONS IN C-C-HYDROCARBON FRACTIONS | 2014 |
|
RU2547258C1 |
| 0 |
|
SU511026A3 |
