Sulfatization of zinc, copper and cobalt oxides by mixtures of sulfur dioxide with air

Abstract

Sulfatization of zinc, copper, and cobalt oxides was performed on a fluidized bed setup at a conditional normal gas mixture velocity (air and S02) of 0.15 nm/sec. The process was controlled by residue analysis. In special experiments, before the gas mixture entered the reactor, part of the sulfur dioxide was oxidized to sulfur on a vanadium catalyst. The object of the study is zinc and copper oxides of the HC classification and nitrous oxide-cobalt oxide obtained by calcination of cobalt oxide of the HC classification at 700°C. The material size class is 0.17 + 0.14 mm. The solid products of the process were analyzed by infrared spectroscopy and X-ray.