Cross sections of the 58Ni(n,p)58Co, 51Co(n,p)59Fe, 51V(n,α)48Sc, and 59Co(n,2n)58Co reactions and isomer ratios for the 58Ni(n,p)58Co reaction were measured for some neutron energies between 9 and 14 MeV. Neutron spectrometry, with an NE-213 scintillation detector, of the beams from the D(d,n)3He reaction was used to evaluate the activation induced by breakup neutrons on natural nickel, cobalt, vanadium, and aluminum-monitor targets. The results are compared with earlier measurements and with theoretical calculations performed with the aid of the GNASH code (Hauser-Feschbach model including pre-equilibrium corrections).