Preparation method of heavy metal chelating agent

• Main Authors: LI YANHONG, ZHOU JIZHU, SHI WEIJIE, KE JIANYI, FENG CHUNHUI, WANG GUORUI
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of sewage treatment, and particularly relates to a preparation method of a heavy metal chelating agent. The boron oxide loaded porous carbon nanomaterial and the polylactic acid/methyl methacrylate copolymer are used as raw materials and are connected together in a bridging manner under the action of an isocyanate silane coupling agent to obtain the composite heavy metal chelating agent. The research shows that the heavy metal chelating agent has high reaction activity and high chelating performance, can perform efficient adsorption and covalent binding with heavy metal ions in wastewater, and effectively removes the heavy metal ions in the wastewater, thereby improving the water quality. 本发明属于污水处理技术领域，具体而言，涉及一种重金属螯合剂的制备方法。本发明以氧化硼负载多孔碳纳米材料和聚乳酸/甲基丙烯酸甲酯共聚物为原料在异氰酸酯类硅烷偶联剂的作用下，通过桥连的方式连接在一起，得到一种复合型的重金属螯合剂。经过本研究表明，该重金属螯合剂具有高反应活性和高螯合性能，能与废水中重金属离子进行高效吸附和共价结合，有效去除废水中的重金属离子，从而提高水质。