الفهرس 
صفحة العنوان باللغة الانجليزيةOnly 14 pages are availabe for public view
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Abstract
The insulating oils play an important role for long life of electrical equipment. Deterioration and aging process of insulating oils effect on electrical equipment life time. The insulating oils are expensive so it is better to regenerate it than replacement. Commercial kaolin clay that enriched with aluminum and silicon
oxides and other traces of Na ,K ,Ca oxides and lab scale refining unit were used to improve the quality parameters of the insulating oils such as color ,appearance ,acidity ,breakdown voltage ,water content ,dissolved gas analysis ,flash point and viscosity.
Also Commercial kaolin was used with oxalic acid and
deionized water to make dechlorination of toxic Poly Chlorinated Biphenyls (PCBs) under certain conditions. PCBs are priority pollutants acting as endocrine disruptors, human carcinogens and environmental estrogens. PCBs compounds were used in many industrial applications due to their dielectric characteristics, chemical stability at high temperatures, insulating properties and low vapor pressure.