METHOD OF PRODUCTION OF AMMONIUM OF HYDROORTHOPHOSPHATE Russian patent published in 2006 - IPC C01B25/28 

FIELD: chemical industry; food industry; alcohol industry; methods of production ammonium of hydroorthophosphate.

SUBSTANCE: the invention is pertaining to production of ammonium of hydroorthophosphate used in the food-processing industry for production of the baker's yeast, as the source of nitrogen and phosphorus, and in production of the ethyl alcohol-rectificate. The method of production of ammonium of hydroorthophosphate includes the two-stage neutralization of the phosphoric acid by ammonia, the evaporation of the solution produced after the first stage of the neutralization, the process of crystallization of the solution of the product with the subsequent separation of the commercial product from the mother liquor by centrifuging. At that the neutralization at the first stage conduct up to pH 5.1-6.0, then the produced solution before the evaporation is mixed with the mother liquor in the ratio of 1 : (1-1.5) up to the density of 1.28-1.33 g/cm³. The method ensures the increased output of the product.

EFFECT: the invention ensures the increased output of the product.

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