▁use ▁of ▁co pper ▁st arter ▁sheets ▁was ▁prevent ing ▁the ▁K idd ▁ref in ery ▁meeting ▁its ▁c ath ode ▁quality ▁targets . ▁Test ▁work ▁then ▁began ▁on ▁the ▁use ▁of ▁permanent ▁st ain less - ste el ▁c ath odes . ▁Pre lim inary ▁tests ▁using ▁full - scale ▁tit an ium ▁bl anks ▁showed ▁a ▁reduction ▁in ▁the ▁lead ▁content ▁of ▁the ▁c ath ode ▁co pper ▁of ▁a ▁factor ▁of ▁four ▁and ▁a ▁six - fold ▁reduction ▁in ▁the ▁selenium ▁content , ▁compared ▁with ▁the ▁use ▁of ▁co pper ▁st arter ▁sheets . ▁ ▁The ▁focus ▁then ▁shift ed ▁to ▁developing ▁a ▁stri pping ▁machine , ▁to ▁develop ▁st ain less ▁steel ▁c ath odes ▁incorpor ating ▁the ▁existing ▁header ▁bars ▁and ▁evalu ating ▁edge - strip ▁technology . ▁The ▁company ’ s ▁board ▁of ▁direct ors ▁gave ▁appro val ▁for ▁the ▁conversion ▁of ▁the ▁ref in ery ▁to ▁the ▁K idd ▁technology ▁in ▁April ▁ 1 9 8 5 . ▁The ▁conversion ▁was ▁completed ▁in ▁ 1 9 8 6 ▁and ▁the ▁K idd ▁ref in ery ▁became ▁the ▁third ▁to ▁install ▁permanent ▁c ath ode ▁and ▁autom ated ▁stri pping ▁technology . ▁ ▁Fal con bridge ▁began ▁market ing ▁the ▁technology ▁in ▁ 1 9 9 2 , ▁after ▁many ▁requests ▁from ▁other ▁ref in ery ▁operators . ▁Thus , ▁the ▁K idd ▁Process ▁created ▁competition ▁between ▁two ▁supp liers ▁of ▁permanent ▁c ath ode ▁technology . ▁The ▁main ▁differences ▁between ▁them ▁were ▁the ▁c ath ode