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Chemical Fertilizer Manufacturing

Chemical Fertilizer Manufacturing

4 days
This course is not scheduled.
Who should attend?


    • Everybody working in the petrochemicals industry or in the sector of chemical fertilizers.
    • Young engineers and beginners in the field of petrochemistry.
    • Staff from subcontractors and service companies involved in the manufacture of these compounds (laboratory, maintenance…).


  • Discovery
  • This course brings technical information on the characteristics and the manufacturing of chemical fertilizers.
Learning Objectives
  • Upon completion of the course, the participants will be able to:
  • define the different families of chemical fertilizers, their markets and the structure of the production chains,
  • recognize the industrial functioning conditions of the workshop for the production of solid fertilizers and their intermediates,
  • identify the risks related to the various production workshops,
  • understand the interconnection between the workshops.
Course Content


0.75 day

  • Main and secondary fertilizers.
  • Various types of fertilizers: simple, mixed, complex.
  • Various states of fertilizers: solids, solutions, suspension.
  • Composition and formula of the various complex fertilizers.
  • Evolution of the fertilizer markets.
  • Main chains of production.


2.25 days

  • Ammonia synthesis:
  • Synthesis gas production from hydrocarbon steamreforming.
  • Ammonia synthesis loop.
  • Urea production:
  • Characteristics of urea synthesis. Various processes.
  • Example of industrial implementation.
  • Nitric acid and ammonitrate production:
  • Main process steps. Schemes and operating conditions. Catalysts.
  • Constraints: corrosion, environment.
  • Properties and risks related to the products.
  • Sulfuric acid production:
  • Main steps of the process. Scheme and operating conditions.
  • Simple and double absorption processes.
  • Specific constraints of the processes: metallurgy, pollution, risks.
  • Phosphoric acid and superphosphates production:
  • Characteristics of natural phosphates. Properties of the final products.
  • Manufacture of the simple or of the phosphoric acid by sulfuric attack of the phosphates.
  • Manufacture of the triple by phosphoric attack of the phosphates.
  • Main steps and processes schemes.
  • Operating conditions - Specific equipment - Risks.
  • Complex of the fertilizer production:
  • Raw materials. Product formulations. Generalities on the processes.
  • Risks: decomposition, pollution.
  • Various types of workshops. Comparison of principles and performances.


1 day

  • Visualization of the main equipment.
  • Operation and main running conditions.
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Ways & Means
  • Specific documentation designed to be used as a reference after the course.
  • Possibility of experts in the field coming to talk about their experience.