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Scottish Agricultural Industries

In the PhoSAI process of Scottish Agricultural Industries (Figure 12.1), ammonia reacts with phosphoric acid (minimum concentration 42 % P2O5) in a stirred-tank reactor to produce a slurry with an N/P ratio of 1.4 (the point of maximum solubility) under atmospheric pressure. The slurry flows to a pin mixer in which the N/P ratio is brought back to 1.0 by the addition of more concentrated phosphoric acid. During this step the solubility decreases and more water vaporizes due to the heats of reaction and crystallization. A solid product is formed that typically contains 6% to 8 % moisture. The product is screened, the oversize particles are ground and the product is sent to storage296. [Pg.286]

See other pages where Scottish Agricultural Industries is mentioned: [Pg.230]    [Pg.61]    [Pg.151]    [Pg.1132]    [Pg.61]    [Pg.354]    [Pg.370]    [Pg.371]    [Pg.371]    [Pg.623]    [Pg.388]    [Pg.230]    [Pg.61]    [Pg.151]    [Pg.1132]    [Pg.61]    [Pg.354]    [Pg.370]    [Pg.371]    [Pg.371]    [Pg.623]    [Pg.388]    [Pg.4]    [Pg.145]    [Pg.187]    [Pg.2]    [Pg.205]   
See also in sourсe #XX -- [ Pg.286 ]



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Agricultural industry

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