Ford Motor Co. is set to begin using rare earth oxides as a substitute for precious metals in automotive catalytic converters. Use of the rare earth substitutes, in tandem with the precious metals, will bring the precious metals use down to about 10 grams/cu.-ft. from its current 30 to 40 grams/cu.-ft. "The new converters would allow a reduction in precious metals use by half and will do as good a job at meeting emissions standards," a Ford spokesman notes in the publication American ...

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