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2019 Volume 10 Issue 4

Determination of carbon residue, ash content, and concentration of heavy metal in virgin and spent Iraqi lubricating oils


Elaf A.W. Shihab, Karim H. Hassan, Ahmed N. Abd
Abstract

During the usage of lubricating oil, it will age, deteriorate, and lose efficiency due to its mixing with foreign matters that contain metal powder, filings, and other oils as well as additives, which result to changes in its chemical and physical properties compared to those of the virgin oil. The results showed that carbon residue and ash content for used oils increase when compared to those of the new one, but after vacuum distillation, it was decreased to 0.47 wt. %, and 0 wt. % respectively. The results of the determination of metals content (Iron, copper, magnesium, zinc, and manganese) demonstrated that there is an increase in the values for Fe, Cu, and Mg at the beginning of use and then settled off whereas no significant change was observed for additive elements (Zn and Mn) in virgin and used oil samples.


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JOURNAL OF BIOCHEMICAL TECHNOLOGY
JOURNAL OF BIOCHEMICAL TECHNOLOGY
Journal of Biochemical Technology is a double-blind peer reviewed International Journal published by the Sevas Publishing on behalf of the Biochemical Technology Society, a Registered Charity Organization from India

AREA OF INTEREST
AREA OF INTEREST
new advances in enzymatic and protein mechanims; applied molecular genetics and biotechnology; genomics and proteomics; metabolic; medical, environmental, food and agro biotechnology.

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FOCUS AND SCOPE
Journal Of Biochemical Technology Provides A Medium For The Rapid Publication Of Full-Length Articles, Mini-Reviews Of New And Emerging Products And Short Communications On All Aspects Of ...

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This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Keywords include, Biochemical Research: Endo/exocytosis, Trafficking, Membrane Biology, Cell Migration, Cell-Matrix Organelle Biogenesis, Cytoskeleton Proteolysis, Cell Death, Cell Cycle, Cancer, Cell Growth/Death, Differentiation, Drug Targets, Gene Therapy, Models of Disease, Proteomics, Stem Cells, Bioenergetics, Mitochondria, Free Radicals, Redox Signaling, Ion Transport/Channels, Oxidative