To develop the design of the experiments we first developed the fish bone diagram and based on this we developed a matrix of possible experiments using the Taguchi design explained elsewhere [11]. The analysis of the fish bones was found to be as follows:-The following aspects have already been covered in the research work carried out by previous scientists:-The activity followed by the order had already been studied; Co2(CO)8 > Co(NO3)2> Co(CH3COO)2 while the chain growth probability followed the sequence Co(NO3)2 > Co2( CO)8 > Co(CH3COO)2 [6]. Based on these results Co(NO3)2 was a preferred precursor salt. Salt concentration was based on solubility in water (134 g/100 ml) and ethanol (9 g/100 ml). Usually a base is used as a precipitating agent (adjusting the pH of the system). Urea has been used previously in several experiments because its hydrolysis is slow but precipitates rapidly [12]. Previous work has identified that the surface properties of the silica support, its interaction with the precursor solvent, and the pH of the system have a strong influence on catalyst dispersion. Ho et al [13] observed that when using ethanol as a solvent instead of water for cobalt nitrate there was an increase in dispersion while maintaining a high degree of reduction. They proposed that the ethoxy group (-OCH2CH3) on the silica gel during impregnation could hinder the aggregation of CO3O4 by physical interference during the thermal decomposition of cobalt nitrate and affect the sintering process during reduction. It was also reported that water as a solvent formed an immobilized glassy layer following hydrogen bonding with silanol groups on the silica surface [14]. The drying rate was adjusted to ensure stability...half the paper......wasn't even added).Experiment PrSl PrEv DrRt CalEv RdRt1 -1 -1 -1 -1 -12 -1 -1 +1 -1 -13 -1 -1 -1 +1 -14 - 1 -1 +1 -1 +15 -1 -1 +1 +1 -16 -1 +1 -1 -1 -17 -1 +1 -1 +1 -18 -1 +1 +1 -1 +19 - 1 +1 +1 +1 +110 +1 +1 +1 -1 -111 +1 -1 -1 -1 +112 +1 -1 -1 +1 +113 +1 -1 +1 -1 -114 + 1 -1 +1 +1 -115 +1 +1 -1 -1 +116 +1 +1 -1 +1 +117 +1 +1 +1 +1 -1During the selection of the final series of experiments we limited the scope to work due to the change in solvent and the change in precipitation/calcination environment (sample 2, 5, 10, 17). Our series of experiments has been reduced to four, as shown in Table 3. This arrangement will identify step by step the impact of these factors on the final distribution of the metal.