Process Technology Scheme for Calcium Formate

The industrial production technologies of calcium formate are divided into the neutralization method and the by-product method. The neutralization method is the primary approach for manufacturing calcium formate, using formic acid and calcium carbonate powder as raw materials.

Based on the main product category, the by-product method can be classified into:

Pentaerythritol by-product method

Trimethylolpropane (TMP) by-product method

Since by-product calcium formate contains organic impurities such as alcohols, its applications are limited. Therefore, only the neutralization method is introduced here.

In the neutralization method, formic acid reacts with calcium carbonate powder to produce calcium formate, which is then centrifuged and dried to obtain the final product.

Reaction equation:

2HCOOH + CaCO₃ → (HCOO)₂Ca + H₂O + CO₂↑

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