Real time Concentration and Mass flow meaurement of Sulphuric Acid in Fertilizer Production Concentrated phosphate is a key ingredient in most fertilizers. To create phosphate suitable for fertilizers, first the phosphate rock is crushed, mixed with water and then combined with sulphuric acid in a reactor to produce phosphoric acid. Finally, the phosphoric acid is reacted with ammonia to produce ammonium phosphate fertilizer. Sulphuric acid is produced on site from molten sulfur and water. It is in the production of the sulfuric acid that the greatest risks of leaks occur. Within the sulfuric acid production process it is critical that both the flow of the acid and its concentration are carefully monitored. Conventionally used inline meters are prone to failure due to the highly corrosive

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