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Sunday, November 15, 2009

phosphorus in the agricultural environment-I

Manufacturing Commercial Phosphate Fertilizer





The commercial production of phosphate fertilizers with phosphoric acid production begins. A generalized construction of various different phosphate fertilizers used in step 1 picture images displayed are given. Either a dry or wet process phosphoric acid is produced. Dry process, phosphate rock is used in an electric furnace. The treatment produced a very pure and more expensive phosphoric acid (often called white or furnace acid) mainly used in food and chemical industries. That as fertilizer P source common use phosphoric acid as white as expensive treatment process is more expensive.

With wet process phosphoric acid produced acid treatment of phosphate rock contains (also known as acid green or black) and one from which removed as gypsum - product. Rang was his fault that acid is not a problem in the production of dry fertilizer. Treatment process either wet (or dry) orthophosphoric acid - phosphate form that is taken up by plants creates.

Phosphoric acid produced by wet or dry process, often heated, driving off water and acid production is one superphosphoric. Usually 72-76% of phosphate in acid concentration Superphosphoric varies. As this acid is present in both P-orthophosphate and polyphosphate. Chemical has joined with Polyphosphates orthophosphates that consist of a series of turns. On contact with soil, polyphosphates orthophosphates back on.

Ammonia can be added or dry superphosphoric acid containing both liquid nitrogen (N) content and liquid, 10-34-0 P, is the most common products create. 10-34-0 finely ground potash (0-0-62), can be mixed with water, and urea, ammonium nitrate (28-0-0) solution to 7-21-7 and related grades. The product P is present as both orthophosphate and polyphosphate.

Phosphoric acid is not that hot when ammonia, monoammonium (11-52-0) phosphate or diammonium phosphate (18-46-0) is added to the mixture produced is based on the ratio. Present in both the fertilizer P is present as orthophosphate.


For personal use phosphate rock and phosphate fertilizers cost of replacement is different from the process. More importantly, the procedures used had no effect on P availability to plants is.

Phosphate fertilizer terminology:

Because of the number of products in the market, the selection of a phosphate fertilizers can be confusing. To define some terminology to avoid confusion may help some. Some important rules are:

Water-soluble -
A control sample analyzed by the laboratory before fertilizer is placed in water and the mix is measured percentage of total phosphate. This percentage is referred to as water-soluble phosphate.

Citrate-soluble -
Fertilizer is not dissolved in water content is kept in an Ammonium Citrate solution. Dissolved in the solution and measured the amount of P fertilizer content is expressed as a percentage total. Phosphates as measured with the analysis process is capable of Citrate.

Available -
Amount of water-soluble and is a percentage Citrate-soluble phosphates is considered available for plants and fertilizer label is the amount guaranteed. Typically, Citrate - water soluble component is less soluble component.

1 comment:

  1. Thank you for sharing that great information.
    Also, find best Phosphoric Acid Suppliers Who offers the best quality Phosphoric Acid in bulk.

    ReplyDelete