HIGHLY POROUS CELLULAR CATALYST WITH ACIDIC PROPERTIES FOR MODIFYING ROSIN Russian patent published in 2008 - IPC B01J23/44 B01J21/04 B01J21/06 C09F1/04 

FIELD: chemistry, inorganic.

SUBSTANCE: invention relates to the catalytic liquid-phase processes, namely for the preparation of a catalyst to be used in the technology of obtaining products from the natural resins, for example rosin, in particular for the modification of gum rosin. Described is a highly porous catalyst for the modification of gum rosin, that consists of a carrier - a highly porous cellular block material on the basis of α-oxide of aluminium and the active part of the catalyst of the sulphated metallic oxide from the IV group and metallic palladium, thus the carrier is made to soak up soluble salts of palladium, is preliminarily processed in a constant magnetic field, and in the composition of the active part of the catalyst there is γ-Al₂O₃ in a quantity not less than 10% of the mass, from the quantity of α-Al₂O₃, sulphated zirconium dioxide in a quantity of not more than 8% of the mass, of metallic palladium in a quantity of not more than 0.2% of the mass. Technical result - reduction of the composition of metallic palladium in the active component by more than 10 times, with the retention of the load on the catalyst 5-7hr^-1, and the residual content of abietic acids not more than 0.1% hydrogenated and about 3% disproportionated rosin.

EFFECT: reduction of the composition of metallic palladium in the active component.

1 cl, 6 ex