硫黄精錬法の研究

概要

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　In Japan sulphur is found in chain of volcanoes extending through the main island; at least 30 known deposits produced 258, 330 long tons of sulphur in 1957. About 70% of this sulphur is refined by Distillation Process which is usually called Yakitori Process.　The chief defects of this process are as folows.　(1) Owing to discontinuity of the operation, thermal efficiency and yield are very low.　(2) The work is unsanitary and laborious.　(3) The metallic materials of apparatus are subject to corrosion by sulphur and its compounds.　The object of this research is to complete a sulphur refining apparatus which works continuously and so improves the above weak points.　First, we made the following fundamenal studies.　(1) Study on properties of sulphtirous ores.　(2) Study on drying of sulphurous ores.　(3) Study on heat transmission from the Yakitori Kettle　(4) Study on mechanism for distillation of sulphur.　(5) Study on fire-proof and sulphur proof materials for the sulphur refining apparatus.　By applying the above fundamental studies, we designed and made a 240 Kg sulphur/day continuous sulphur refining apparatus and then five semi-scale trials were carried out.　Comparing the results of our experiments with those of the heretofore used refining processes, we discussed possibility in the industrial application.
山形大学の論文
1959-02-28