PRODUCTION OF NAPHTHENIC LUBRICANT BASE OIL

PURPOSE:To obtain a naphthenic lubricant base oil having a high viscosity- pressure coefficient, a low viscosity and a low flow point at a low cost by specifically treating a tar or heavy oil obtd. by the quick thermal decomposition of coal. CONSTITUTION:A tar or heavy oil obtd. by the quick thermal...

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1. Verfasser: HOTTA ZENJI
Format: Patent
Sprache:eng
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