Present Problems in Lubricating Oils
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概要
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Until 1945 our principal Problems of lubricating oil researches were how to supply aero-engine oils.Since 1950, being the restoration period of the oil industry of this country, the sulphuric acid treating has been the most important process for the lubricating oil production.But the special turbine oils and diesel engine oils of higher grade are refined from the Middle East crudes by solvent extraction methods and the products have to stand on the competitive situation with the excellent products imported from abroad.To reveal the true characteri-stics of sulphur compounds in lubricating oil fractions, to utilize the low pour.point naphthenic crude oils in Japan, to make the best use of various lubricating oil additives, for example the rust preventives, and to produce synthetic oils and all purpose grease economically, are our important present problems.As many reports of fundamental researches on lubricating oils are introduced lately to us, the rapid advance of our refining methods should be expected.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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