加圧熱水式硫黄製錬法の改良研究 (第1報)

液体硫黄および水に対する鉱物の濡れ性

抄録

In extracting sulfur from ore by means of the autoclave method with superheated water under pressure the yield of sulfur differs materially in accordance with ores used. For improving this method, the author made an examination on molten sulfur- and water-wettability of each sample of component minerals found in sulfur ores and classified which kinds of minerals were improper for extraction.
The results of sealed glass tube tests are summarized as follows:
1) Quartz, opal and many silicate rock minerals were hydrophilic and harmless for extraction.
2) As for clay minerals, some were harmful and some were not, viz., kaolinite, halloysite, fire clays; pyrophyllite, talc etc. were amphiphilic and harmful; while montmorillonite, muscovite, illite, saponite, allophone, diatomite etc. were hydrophilic and harmless accordingly.
3) Alunite, calcite, limestone, limonite, iron and aluminium hydroxides were amphiphilic, while gypsum, iron and aluminium oxides were hydrophilic.
4) Sulfide ores such as iron pyrite had affinity for sulfur and intermixed with sulfur, but did not hinder its agglomeration.
In further observation, there was a good coincidence between the results of the examination on samples whose components were known and those expected from these components.