Chemical Fertilizer Manufacturing


Who should attend?

  • This course brings technical information on the characteristics and the manufacturing of chemical fertilizers.
Audience :
  • 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…).

Level : Discovery

Course Content


      • 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.

      • 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.

      • Visualization of the main equipment.
      • Operation and main running conditions.

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.

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.