Chelating agents – Iron chelates

Chelating agents – Iron chelates

The iron is one of the most important microelements necessary to the life and development of plants because it intervenes in a chlorophyll formation and participates as catalyst in some fundamentals metabolic reactions. The bioavailability of iron is related to its oxidation state and several factors which favor or impede the iron availability in the soil (pH, soil type, waterlogging, presence of iron antagonist microelements, etc.). The iron deficiency causes a very important and widespread disease called iron chlorosis which affects the plant growth and reduces the yields of crops.

Many therapies have been developed to nurse the iron chlorosis but the most efficient has been the fertilization with synthetic chelating agents, organic macromolecules which permit the metalic ion stabilization and prolonged release, ensuring the necessary bioavailability in the soil.
Among the chelating agents authorized from the European Regulation, the most efficient is the EDDHA and in particular its ortho-ortho isomeric form which ensures the highest stability level of ion.

Considering the production volumes of EDDHA and the syntheses processes dated ’70, the research of innovative and optimized processes is therefore necessary to guarantee a production more cheap and sustainable. TPP Group works at the research in collaboration with Fertenia Srl, to know more, read here (in Italian).

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Research lines

The TPP group deals with the study of EDDHA production process analyzing the issues influencing the reaction yields and quality characteristics of products, in order to innovate and optimize the existing processes towards the reduction of hazardous and polluting substances use and the reduction of costs. Our research can be summarized as:

Rating of syntheses processes

  • Analysis of reaction kinetic
  • Analysis of reaction yields
  • Analysis of chelated iron and soluble iron fraction in the syntheses products
  • Testing of obtained products to evaluate the efficacy

Design of industrial plants

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