Abstract
Chlorine flow in Japan in 1995 was surveyed from the viewpoint of industrial metabolism using a substance flow analysis method. About 3,543 kt / year of chlorine mainly manufactured by electrodialysis of imported salt is converted to various chlorinated substances and consumed. Finally they are emitted as chlorinated organics, salt, ionic solution or polymers into the environment. The industrial metabolism structure of chlorine shows dendritic flow representing mainly raw-product chain relation in chemical reaction. Recycling flows in the metabolism structure can be found in hydrochloric acid , solvent , flon and PVC. Especially the PVC flow diagram has been analized through the usage of PVC. It has been concluded 1,000 kt / year of PVC is accumulated in Japan.
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