<研究>銅熔鑛爐廢ガスよりの硫黄囘收に關する物理化學的考察

概要

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The recovery of sulphur from copper smelter gases is an important subject that has been given much consideration. In this paper a physico-chemical study on the method, "Orkla process", which recovers sulphur as elemental form, is described. First, some theoretical calculations based on the known thermodynamical data concerning the forms of gaseous sulphur, metallurgically the most important and interesting of all the elements, have been carried out at various temperatures and it has been found that at lower temperature the vapor consists mainly of S_8 and S_6,with increasing temperature, S_8 dissociate to S_6 and S_6 to S_2 and above 900℃, it consists almost of S_2. Second, various oxidation and reduction reactions with respect to the equilibrium between sulphur, carbon and oxygen at high temperature have been investigated thermodynamically and it has been found that among the reactions as to the reduction of SO_2,the one by CO gas is predominent at lower temperature and with increasing temperature, the reduction by carbon, especially at higher temperature the following reaction becomes remarkable : SO_2(g)+2C(graphite)=1/2S_2(g)+2CO.
東北大学の論文
1951-03-25