A company called Mantra is recycling CO2 into formic acid, which can be used as a substitute for hydrochloric acid. Among other uses, the steel industry uses hydrochloric acid to remove rust, and this would be a more environmentally friendly substitute.
Supposedly one ton of CO2 can be converted to one ton of formic acid.
Evidently there is already a pretty big world market for formic acid. Research firm Global Industry Analysts projects it to reach 573,000 tons by 2012. Chemical companies like BASF, Celanese Chemicals, Kemira, Perstorp and SAMSUNG Fine Chemicals are already making conventional formalic acid. See the full story here.
Wouldn't it be great to find other cool ways to recycle CO2, since we're already pumping it into the atmosphere by the boatload?
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