Infracor Gmbh

Hartmut Rahtz

Gerda Grund

Karsten Hoeland

Johannes Chiovaro

Hermann-Josef Korte

The present invention relates to a method of preparing chlorine dioxide (ClO) from hydrochloric acid (HCl) and sodium chlorite (NaClO) in the presence of water (HO). The invention has for its object to further develop the method such that it is more economical to install and operate. The object is achieved when the hydrochloric acid is used in aqueous solution at a concentration of 27 to 33 wt %, the sodium chlorite is used in aqueous solution at a concentration of 22 to 27 wt % and the molar ratio of hydrochloric acid used to sodium chlorite used is between 2.14 and 4.2.

Method of treating water with chlorine dioxide

An arrangement for addition of chlorine dioxide to flowing water in a pipeline is provided. The reactants are reacted in a reaction chamber located in the flow of water and the chlorine dioxide is passed from the reaction chamber directly into the flowing water.

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Duelmen, Germany

Hartmut Rahtz