Process for removing iron and phosphate ions from chlorinated hydrocarbon waste logistics

摘要

1, 1,1,3,3-pentachloroppropane (hcc-240fa) and / or 1,1,1,3-tetrachloropropane (hcc-250fb) from the process of producing chlorinated hydrocarbon waste such as waste logistics derived from the process A process for simultaneously removing iron and phosphate ions.Waste disposalChlorinated hydrocarbonsTributyl phosphate (TBP) and / or triethyl phosphate (TEP)IronFeCl2 and / or FeCl3Tbp-fecl2 complex and / or tbp-fecl3Contains at least one of tete-fecl2 complexes and / or tep-fecl3 complexes;Thermal oxidation is done.Hydrogen chloride (HCl)FeCl3 and / or FeCl2A second water waste distribution containing at least one of H3PO4 is generated.The second waste distribution is exposed to the base to produce precipitates containing at least one insoluble compound selected from the group consisting of FePO4, Fe (OH) 3, and CA3 (PO4) 2 and separated from the second waste stream A liquid phase containing extremely small amounts of iron and phosphate ions is produced.No selection