Comprehensive utilization method for heavy-component by-product of trimellitic anhydride

• Main Authors: KE BOLIU, KE MEISONG, WANG YONGLEI, KE BOCHENG, LUO JIANLI, BI HONGHUI
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention provides a comprehensive treatment method for black residues produced in production of trimellitic anhydride. The method comprises the following steps: (1) dissolving the black residues in ethyl alcohol aqueous solution at normal temperature, and stirring for 1 to 3 hours for dissolvin...