Protecting the enviroment

Our way

We produce Waelz oxide in our rotary kiln plant.

The zinc-containing input materials are enriched in our rotary kiln using the so-called Waelz process to form Waelz oxide with a zinc content of at least 56 %. For this purpose, the input materials are introduced into the 40 m long rotary kiln together with other additives and handled at approx. 1,200°C.


Pyrometallurgical Process

1EAF Steel Dust Transport

2Blending, conditioning and pelletizing of Kiln Feedstock

3Main reaction Waelz Kiln

4BSettling Chamber

5Off Gas treatment

6Clean air discharge

7Waelz Zinc Oxide

AHarzoxid is researching how to valorize the iron content in the Waelz Iron Product

1 2 3 4B 5 6 7 A