Idemitsu Kosan Company, Limited

Saburo Koyama

Eiichi Nakamura

Fumiaki Takagi

Shigeo Hara

Hitoshi Uchida

Seiichi Shido

Kenji Onodera

Toshio Fuchigami

Toshio Saito

Yasunori Tomari

Hiroshige Matsuoka

Ryouichi Okuda

Tatsuo Nara

Toshio; Fuchigami

An organic compound hydrogenation apparatusof the present invention includes a reaction cellto which an electrolytic solution is supplied, and an anodeand a cathodearranged in the reaction cell, in which the cathodeis made of a material including a hydrogen storage material, the cathode being arranged as a tubular member so that an organic compound as an object to be treated circulates thereinside. The present invention having the arrangement described above can provide a method for hydrogenating organic compounds and an organic compound hydrogenation apparatus that can enhance efficiency of hydrogenation of the organic compound.

Organic compound hydrogenation apparatus and method for hydrogenating organic compound

A method of reduction reclamation of an oil or prevention of oxidation degradation of the oil of the present invention includes: using an electrolytic cellhaving an anodeand a cathodemade of a hydrogen storage material, and inside of the cell divided by the cathodeinto an electrolytic chamberA and a reduction chamberA; supplying the oil to the reduction chamberA while applying an electric voltage between the anodeand the cathodeto electrolyze an electrolytic solution supplied to the electrolytic chamber(Translator's comment: correctly,A); and absorbing hydrogen generated on the cathodein the electrolytic chamberA in the cathodeto reduce the oil in the reduction chamberA, the method for reduction reclamation of the oil or prevention of oxidation degradation of the oil allowing continuous treatment.

Method of reducing/regenerating oil or preventing oxidization/degeneration thereof

Provided is a metal working oil composition not containing a chlorine compound. Its working capabilities in low-speed cutting or heavy cutting operations such as broaching or gun-drilling operations are comparable to or better than those of chlorine compound-containing lubricant oil. The composition comprises 100 parts by weight of a lubricant base oil that comprises from 0 to 30% by weight of (a) a mineral base oil and from 70% to 100% by weight of (b) a &pgr; electron-containing synthetic base oil, from 0.1 to 25 parts by weight of (c) a sulfur-containing extreme-pressure agent, and from 0.1 to 7 parts by weight of (d) an alkali metal and/or alkaline earth metal sulfonate.

Metal working oil composition

Disclosed is a heat treating oil composition which comprises a base oil adjusted to have a total sulfur content of 3 to 1000 ppm comprising (A) at least one base oil selected from a mineral oil and a synthetic oil each having a sulfur content of not more than 300 ppm and (C) at least one member selected from a sulfur and a sulfur compound, and (B) at least one additive selected from an alkaline earth metal salt of sulfonic acid, that of a phenol, alkenyl succinic acid derivatives, fatty acid or its derivatives and phenol-based and amine-based antioxidants. The above-mentioned heat treating oil composition is suitable for quenching under a condition of a high oil temperature, and realizes a treated metal product having a excellent brightness and little distortion.

Heat treating oil composition

There is disclosed a heat treating oil composition which comprises (A) at least one base oil selected from a mineral oil and a synthetic oil each having a sulfur content of not more than 300 ppm and (B) at least one member selected from alkaline earth metal salts of salicylic acid. There is also disclosed a heat treating oil composition which comprises (I) a base oil having a sulfur content of 3 to 1000 ppm consisting of said (A) component and (C) at lease one member selected from a sulfur and a sulfur compound, along with (II) various additives for quenching. This heat treating oil composition is suitable for quenching under the condition of a high oil temperature and capable of obtaining a treated metal excellent in brightness and having a minimized distortion.

A lubricating oil composition for plastic working and a lubricating oil composition for cutting and grinding which contains a straight chain olefin having 6 to 40 carbon atoms. The lubricating oil composition for plastic working or the lubricating oil composition for cutting and grinding provides excellent workability and can give the material worked an excellent finish.

Lubricating oil composition

Disclosed are a lubricating oil composition for plastic working and a lubricating oil composition for cutting and grinding which comprises a straight chain olefin having 6 to 40 carbon atoms. This lubricating oil composition for plastic working or a lubricating oil composition for cutting and grinding provides excellent workability and can give the material worked an excellent finish.

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Ichihara, Japan

Saburo Koyama