| 简介 |
The present invention relates to a method for treating waste petroleum, and more specifically relates to providing a method for treating various waste petroleum (such as a lubricating oil, a re¬ frigeration oil, an insulating oil and the like used in general machinery and equipment as well as in particular radioactive waste petroleum) into eco-friendly solid that leaching of oil would not occur. That is, the method of the present invention comprises mixing 85-90% by weight of waste petroleum and 10-15% by weight of a mixed solution in which a concentrated sulfuric acid is mixed with a concentrated nitric acid at a mixing ratio of 1 : 2; producing precipitates and filtrates (3H+3, SO4 2, and NO3" ) and modified waste oil obtained by the mixing step (a); adding 85-90% by weight of the mixed solution in which the precipitates and the filtrates are mixed homo¬ geneously to 10-15% by weight of a saturated aqueous sodium hydroxide solution (Na+OH +H+2 O 2), thereby carrying out a second polymerization reaction to produce solid particles; col- loidizing a mixture obtained by uniformly stirring the solid particles; adding 10-15% by weight of a diisocyanate compound to 85-90% by weight of the colloidized mixture before reactor cooling of the colloidized mixture, thereby carrying out a third polymerization reaction serially to obtain a mixture in the form of powder with a gas; purifying the gas generated in the third polymerization reaction and discharging the purified gas into the atmosphere by way of a complex salt reaction; and filling the compound into a resin as a filling material and compression molding and reclaiming the filled compound. As described above, the method of the present invention can treat radioactive waste petroleum used in a nuclear power station as well as various waste petroleum, thereby stabilizing waste petroleum chemically and physically, wherein the method comprises mixing waste petroleum with a concentrated sulfuric acid and a concentrated nitric acid; adding sodium hydroxide, thereby carrying out a second polymerization reaction to produce solid particles; colloidizing a mixture obtained by uniformly stirring the solid particles; adding a diisocyanate compound in reactor, thereby carrying out a third polymerization reaction to obtain a new compound in the form of powder; discharging a generated gas into the atmosphere; and filling the compound into a resin as a filling material and compression molding and reclaiming the filled compound. Further, a new compound produced by treating waste petroleum according to the present invention, can be compression-molded as block with various resins and be reclaimed readily. Also, there are no problems caused by leaching of oil. Accordingly, the present invention is excellent invention that can prevent industrial pollutions caused by waste petroleum, specifically waste petroleum used in a nuclear power station. |
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