Method for synchronously obtaining tobacco extract and target carbon material from waste tobacco and application

• Main Authors: ZHANG YINGHE, ZHU ZHIYUAN, LI CHAOYI, ZOU DIANDIAN, WANG YONGJIE, WANG YAN, YOU HENGZHI
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a method for synchronously obtaining a tobacco extract and a target carbon material from waste tobacco and application of the method, the waste tobacco is treated through a deep eutectic solvent to obtain solid tobacco residues and a liquid phase containing nicotine, solanesol and the deep eutectic solvent, and the solid tobacco residues and a KOH solution are further heated to obtain porous carbon in the target carbon material; the deep eutectic solvent in the liquid phase is separated through extraction and freezing; and further performing sulfuric acid washing, drying and rotary evaporation on the liquid phase to extract nicotine and solanesol in the tobacco extract. According to the method, the waste tobacco is treated by using the deep eutectic solvent, and nicotine, solanesol and porous carbon in a target carbon material are simultaneously extracted from the waste tobacco by combining a simple and feasible chemical purification method, so that the utilization rate and the addition