Acid Recovery

HCl solution, anhydrous HCl gas, HF solution

Halogenated waste treatment (hydrocarbons with chlorine, bromine, iodine or fluorine) may occur by thermal oxidation under specific conditions: temperature in the furnace of at least 1100°C, and a 2-second residence time in the furnace must be respected. In this case, the halogenated compound can be recovered in the form of a mineral acid: HCl solution, or anhydrous HCl gas in the case of chlorinated waste treatment, HF solution in the case of fluorinated waste treatment, HBr solution in the case of brominated waste treatment.

The Pulvaporizator® can treat waste in which the halogenated content can vary from very low to very high concentration, while recovering energy through steam production and recycling valuable compounds as mineral acids (HCl, HF, HBr) or as anhydrous gas (dry HCl). These recycled compounds can reach a high level of purity, up to food-grade HCl for example, thanks to our technology and broad experience.

The chlorinated compound can be recovered in different forms: from very dilute HCl –hydrochloric acid solution (less than 5%) to more concentrated (up to 38%), and even dry anhydrous HCl gas. The fluorinated compound can be recovered in the form of HF –hydrofluoric acid solution with a concentration of up to 50%.