Quick and economic method for the recovery of residual mineral oils from industries (Machine-translation by Google Translate, not legally binding)

摘要

Due to improvements introduced in the object of the main patent no. 267,320, granted by fast and economic method for the recovery of residual mineral oils from industries, essentially characterized, because as a complement to the method referred to, fast and economical for the recovery of mineral oils, in the industries, it is done through those coming from the lubrication of diesel-type engines, by heating, by heating for the purpose of eliminating volatiles, with an electric stirrer, maintaining the maximum temperature of the order of 110º to 150º, for a certain time and then cooling it up to the temperature of 40º to 80º, previously determined in laboratory tests and descended that one, proceeds to the addition of commercial sulfuric acid, in proportion of 5 to 10 percent, which will be carried out slowly and during the same, base to maintain a vigorous agitation, in order to achieve the mixture of the acid and the oil, maintaining the agitation n for a certain time, which is usually half an hour, ending when the formation of a lumpy precipitate is observed and then decanting, for a period of 8 to 10 hours, depending on the amount of oil, and after these, the sludge is extracted, leaving the oil clean, then the neutralization phase arrives, putting the oil in the reactor to its heating between temperatures of 60º and 9º, to stir the mass by means of the apparatus agitator, and when adding quick lime, in proportion of 6 to 10º, the agitation is maintained during a time approximately of half an hour, all this without shaking happens again to that of singer to achieve the sedimentation of the thickest particles of lime, proceeding to the filtration, by means of a press filter, hot operation making sure that the oil is kept at a temperature of the order of 60º, decreasing its viscosity, and then The ion is passed back to the reactor apparatus for decolorization by activated earth, and the first operation is to subject them to a strong heating of the order of 80º, restarting the reactor agitator, for a slow addition of the activated destaining earth in proportion of 4 to 8 percent for one hour, and finally to the finish, that is, a new filtration in an ordinary filter press. (Machine-translation by Google Translate, not legally binding)