Advantages of Producing and Using Monoammonium Phosphate
Date
1980-10
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Abstract
This document explores the advantages of producing and utilizing monoammonium phosphate (MAP) as a fertilizer ingredient. Since the 1960s, the production of ammonium phosphate has been primarily focused on granular diammonium phosphate (DAP). However, MAP has gained popularity due to its versatility and benefits as a fluid fertilizer base. The document highlights the advantages of MAP production in various aspects, including ammonium phosphate production plants, regional granulation plants, bulk blending plants, fluid fertilizer production, transportation, storage, and agronomics. The document discusses the advantages of using MAP over DAP in ammonium phosphate production, particularly in scrubbing processes. The MAP production process simplifies scrubbing and offers greater flexibility in acid concentration. Nongranular MAP production methods are also explored, emphasizing their simplicity and suitability for storage, handling, and transportation. The document further elaborates on the advantages of MAP in regional granulation plants. By adjusting the ammoniation ratio, regional granulation plants can increase the amount of phosphoric acid used, thereby improving granulation efficiency and product storage. The introduction of the pipe-cross reactor is highlighted as a development that enables the use of higher amounts of phosphoric acid in regional granulation plants. Additionally, the benefits of MAP in bulk blending and suspension fertilizers are discussed. MAP allows for a wide range of blending ratios without additional phosphate materials, offering logistical advantages. It is also favored in suspension fertilizers due to lower shipping costs and the absence of cold weather storage issues associated with fluid bases.
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Keywords
Ammonium phosphate, Suspension fertilizers