04 1 68 nh sub 4 sub 2 co sub 3 h sub 2 o 0 62 0 54 0 72 0 23 1 77 1 88 biuret 0 79 cyanuratetriuret n 15 0 13 0 18 0 6 0 19 0 17 0 0 0 0 0recovered__________________________________________________________________________ the experiments were carried out as in example 1 supra using temperatures in the range of 150 u00b0 c to 175 u00b0 c reaction times of between 1 75 and 6 hours and palladium on carbon rhodium on alumina or mixtures thereof as a catalyst this experiment was carried out as in example 1 l supra except that the catalyst consisted of 5 palladium on carbon alone no solid products were obtained see table 1 supra this experiment was carried out as in example 1 supra using recycled rhodium on alumina as catalyst no solid products were obtained these experiments were run as in example 1 supra except the solvent bubblers 7 were bypassed 9 and hydrogen gas was used in place of the methanol also the hydrogen gas flow rate and temperature were varied to determine their effect on product formation the conditions and results for the individual experiments are given in table 2 infra table 2__________________________________________________________________________ examples 9 10 11 12 13 14 15 16 17 18 19 20__________________________________________________________________________experimentalconditionscatalyst u2190 5 rh al sub 2 o sub 3 u2192 5 pd c u2190 5 pd al sub 2 o sub 3 u2192 0 5 gno flow 32 4 32 4 32 4 32 4 32 4 32 4 32 4 32 4 32 4 32 4 32 4 32 4ml minco flow 200 0 200 0 200 0 200 0 200 0 200 0 200 0 200 0 200 0 200 0 200 0 200 0ml minh sub 2.