Abstract
Extraction using hexane or heptane solvent was employed to recover dinitrotoluene (DNT) isomers and 2,4,6-trinitrotoluene (TNT) from spent acid after toluene nitration process. Multiple stages experiments were conducted to elucidate the influence of various operating variables on the performance of removal of organic compounds from spent acid, including extracting temperature, volume ratio of solvent versus acid, spent sulfuric acid concentration and organic compounds content of the feedstock. It was found that organic compounds extracted reached nearly 78%, of which solubility in spent acid depends strongly upon the sulfuric acid concentration. In both cases of hexane and heptane, the extracting priority of organic compounds is in the following order: 2,3-DNT > 2,6-DNT > 3,4-DNT > 2,4-DNT > 2,4,6-TNT. Furthermore, this method established is promising for regeneration of spent acid preliminarily.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
