Abstract
During the past two years, Cytec Industries has successfully developed and demonstrated an antiscalant technology that substantially reduces the fouling issue that remains a perennial problem in wet-process phosphoric acid production plants. The technology has offered significant benefits at various points in the process including a 90% reduction of scale mass in process piping, reducing the number of tubes plugged in a heat exchanger by 85% with concomitant decrease in cleanout time of 85%, and increasing the operational cycle of a heat exchanger by almost 100%. To cap all these benefits, there are no downstream effects and product grade acid was produced throughout all of the trials. The technology is easily implemented at existing plants with no requirement for significant capital investment.
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