Browsing 2013 fascicula9 nr1 by Subject "ash content"
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Regeneration of Used Engine Lubrication Oil by Solvent Extraction. The Solvent Influence on Oil Ratio (Universitatea "Dunărea de Jos" din Galați, 2013)Huge amounts of used lubricating oils from automotive sources are disposed of as a harmful waste into the environment. For this reason, means to recover and reuse these wastes need to be found. Problems arising from acid ...