The distilled device and uses this the waste sulfuric acid recovery purifier

摘要

PURPOSE: To provide a distillatory apparatus suitable for recovering sulfuric acid from a waste sufuric acid solution and a purifying apparatus using said apparatus. ;CONSTITUTION: A tank main body 10 storing a solution 4 to be treated, the cylindrical reflux part 30 communicating with the tank main body to rise upwardly and the cylindrical condensing part 5 allowed to communicate with the upper part of the reflux part by a connection pipe 70 and arranged almost in parallel to the reflux part are constituted of the same quartz glass to be integrally welded each other. The injection port 11 of the solution to be treated, a drain 12 for discharging a treated solution and a means loaded with a heater for heating the solution to be treated are provided to the tank main body 10 and Rasching rings 32 are received in the lower part of the reflux part 30 and a cooler 34 for obtaining a desired reflux ratio is provided to the upper part of the reflux part 30. Fine pipes 51 circulating a cooling medium are provided in the condensing part 50 and a condensate outlet 52 and a condensate sump 55 are provided to the lower part of the condensing part 50. In a waste sulfuric acid recovering and purifying apparatus, the distillatory apparatuses of the substantially same constitution are used as a concn. apparatus and a purifying apparatus to be mutually connected in a cascade fashion.;COPYRIGHT: (C)1993,JPO&Japio