| 摘要 |
Used mineral motor oil ecological recycling procedure This procedure includes detecting and rejecting the used mineral motor oils containing PCB's and/or PCT's before filtering; before the decantation and/or distillation step, if necessary, submitting the used mineral motor oil to thermal shock treatment. In the recycling process, stabilizing the used mineral motor oils that normally contain heavy metals by adding to bitumen, using 0 to 15 percent of used mineral motor oil and 100 to 85 percent bitumen for bituminous pavements and 0 to 20 percent of used mineral motor oils and 100 to 80 percent bitumen for bitumen emulsions and paints. Also in the recycling process the used mineral motor oils are mixed with bitumen and paraffinic elastomers, stabilizing the heavy metals contained in the used mineral motor oils, getting usual bituminous pavements, self-draining bituminous pavements, sport pavements, etc. EPM, EPDM or Butyl rubber are used as paraffinic elastomers.
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