A New Process for Producing Sodium Pyrophosphate With Circulating Reaction of Melamine

Abstract Technological conditions of producing sodium pyrophosphate from wetprocess phosphoric acid with circulating reaction of melamine were investigated. Effecting factors for the process such as reaction temperture,rate of stirring,concentration of sodium hydroxide and reaction time were studied. Accordingly, the optimumtechnolgical conditions were established.

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Keywords�� s: melamine circulating reaction catalyst sodium pyrophosphate

Received 1996-04-15;

Cite this article:

Hou Changjun.A New Process for Producing Sodium Pyrophosphate With Circulating Reaction of Melamine[J] Chemcial Industry and Engineering, 1996,V13(2): 28-31