Authors: V.Yu. Baldin, Y.M. Gordon and Yu. G. Yaroshenko
Abstract
The manufacturing of the sulphuric acid from the off-gas of pyrometallurgical processes in the production of heavy metals is one of the common methods of effective recycling of sulfuric anhydrite. The new Impact-Inertial Devises with the rectangular contact channels (IIRCh) and the internal circulation of liquid allow to inject an absorber into the phase’s interactive cell by utilizing the gas stream energy and by this way to increase the sulphuric acid yield and to reduce the power consumption. These devices have the following advantages: simplicity of design, smaller size, low capital expenses, absence of irrigating system, high operational reliability, simultaneous cleaning from solid, gaseous and liquid impurities and also cooling of gases etc. The IIRCh efficiency is almost 18 % higher and they require 1.3-2 times lower energy in comparison with Venturi Absorbers. Also the elevation of spraying nozzles or injectors is 1.5 times lower in the IIRCh case.
