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1. Market conditions in 2008China mainly uses two sodium tripolyphosphate(STPP)manufacturing techniques-thethermal phosphoric acid process andthe wet phosphoric acid process. The mostimportant influences in STPP’s cost are theprices of phosphate rock, sulfur and yellowphosphorus.
1. Market conditions in 2008 China mainly uses two sodium tripolyphosphate (STPP) manufacturing techniques-thether phosphoric acid process and the wet phosphoric acid process. The mostimportant influences in STPP’s cost are theprices of phosphate rock, sulfur and yellowphosphorus.