Abstract: The present disclosure relates to an organic solvent purification process and a dehydration system for obtaining a high-purity organic solvent, and according to the present disclosure, a high-purity organic solvent may be obtained by removing an inflow of impurities during a dehydration process.

Abstract: The present disclosure relates to a purification process of an organic solvent, the process including: (a) performing distillation by supplying an organic solvent to a distillation column; and (b) discharging a portion of the organic solvent including impurities through a side discharge stream connected to a lower part of the distillation column, wherein the discharging of (b) discharges a portion of the organic solvent including impurities at a flow rate of 0.5% to 10% with respect to an input flow rate of the organic solvent supplied to the distillation column in (a).

Abstract: The present invention discloses a system for automatically detecting abnormalities in statistical data on usage, to a method for same, and to an apparatus applied to same. Namely, the present invention can increase the reliability and accuracy of statistical data on usage by: collecting statistical data on usage, the data relating to the usage of electronic information from a plurality of information-providing platform apparatuses each issuing separate electronic information; and, from among the collected statistical data on usage, determining, as data to be subjected to abnormality detection, only the statistical data on usage that corresponds to a reference data format, and detecting abnormalities for each type from the statistical data on usage determined as the data to be subjected to abnormality detection.

Abstract: The present invention discloses a system for automatically detecting abnormalities in statistical data on usage, to a method for same, and to an apparatus applied to same. Namely, the present invention can increase the reliability and accuracy of statistical data on usage by: collecting statistical data on usage, the data relating to the usage of electronic information from a plurality of information-providing platform apparatuses each issuing separate electronic information; and, from among the collected statistical data on usage, determining, as data to be subjected to abnormality detection, only the statistical data on usage that corresponds to a reference data format, and detecting abnormalities for each type from the statistical data on usage determined as the data to be subjected to abnormality detection.