What`s the Glyoxylic acid 50% producing method for EDDHA Fe

What`s the Glyoxylic acid 50% producing method for EDDHA Fe?

Glyoxylic acid 50% is widely used for fertilzier.

Iron is one of the seven trace elements required for plant growth. It is the main agent for curing diseases of plant iron deficiency and panama disease. The properties of traditionally applied iron containing inorganic salt fertilizers are unstable. It has destructive effect on the soil. Therefore, it is a need for soluble and high-purity organic chelate iron fertilizers in agriculture.

EDDHA chelate iron salt is a highly effective, high-quality, super active chelate iron salt. EDDHA Fe is used as trace element fertilizer in agriculture. It is most effective product for curing diseases plant iron deficiency and panama disease.

One method to produce EDDHA Fe.

1. Heat phenol to 40‑70℃, add ethylenediamine and glyoxylic acid in a molar ratio of 1:0.8 ‑ 1.2, and mix evenly,obtaining the initial mixed material.
2. Adding glyoxylic acid and an alkaline aqueous solution to the initial mixed material.
3. Heating the reaction raw material mixture to 60‑90 ℃ for reaction. After the reaction is completed, the reaction product is extracted with an extraction solvent,remove the organic phase. EDDHA salt solution obtains.
4. At pH of 7.5 ‑ 9, EDDHA salt solution chelates with an inorganic iron salt. EDDHA chelated iron salt solution obtains.
5. Concentration, centrifugation, and drying treatment. EDDHA chelated iron salt obtains.