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NRDC/Chemical Registration Center Inventory Part of SEPA.

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Presentation on theme: "NRDC/Chemical Registration Center Inventory Part of SEPA."— Presentation transcript:

1 NRDC/Chemical Registration Center Inventory Part of SEPA

2 Phase 1 of NRDC/CRC Study Inventory mercury supply through mining and imports, estimate total annual supply Investigate usage in the battery sector Investigate usage in vinyl chloride monomer manufacture

3 China Mercury Supply Estimate (based on average 2002-2005) Legal Mining700 tons Imports233 tons Catalyst Recycle290 tons Illegal Mining0-200 tons Total1223-1423 tons By-product capture…..

4

5 China VCM Sector Mercury Usage, 2002-2004 (tons) Year200220032004 Mercury catalyst 354841516103 Total mercury354.8415.1610.3

6 Growth estimates for PVC sector From 2002-2004, PVC output in China rose from 1.96 million tons to 3.1 million tons, an annual increase of over 25%. Mercury catalyst usage grew by an annual rate of 31.4% during this period. ***This is probably the largest single use of mercury within any sector of any country****

7 Options for Reducing Mercury Usage in VCM manufacture Alternative non-mercury catalysts Coal to ethylene via naptha Better management of mercury catalyst during production Improvements in recycling??


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