abstract |
CATALYST FOR AMMONOLYSIS OF P-OXYBENZOIC ACID ESTERS IN I-hydroxybenzonitrile, including phosphorus pentoxide and boron oxide, is due to the fact that, in order to increase the activity of the catalyst, it additionally contains vanadium pentoxide, with the following content of components, weight. %: Boron oxide 27.60-31.73 Vanadium nitrate 7., 66 P phosphorus thioxide Else |