Waste Lubricating Oil Research. Some Innovative Approaches to Reclaiming Used Crankcase Oil.
Whisman-ML; Goetzinger-JW; Cotton-FO
NTIS: PB 234 685 :20 pages
The Bureau of Mines developed and laboratory tested several innovative techniques for reclaiming used lubricating oil. These processes included percolation through both chemically treated clay and ion-exchange resins, distillation through batch and continuous wiped-wall vacuum apparatus, treatment with solvent extraction systems, and chemical removal of impurities with chelating agents. In each treatment, the criteria of evaluation were oil recovery and reduction of acidic and metallic components. Both vacuum distillation and solvent treatment ranked high in their abilities to remove acidic and metallic components of the used oil with good oil recoveries. A combination of the two techniques gave the best overall results in terms of quality evaluations made by established bench tests. The methods were not ranked according to economic practicability.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 234 685