-
1.发明公开
公开(公告)号：EP4063005A1
公开(公告)日：2022-09-28
申请号：EP19953327.4
申请日：2019-11-22
发明人： LI, Yongfeng , XING, Jinming , WU, Xuefeng , ZHANG, Hongke , FAN, Zhenlong , GAO, Xueshun , ZENG, Fanxue , CUI, Chengcheng , ZHOU, Bo , ZHAO, Yibing , LI, Peng , YANG, Qilin
IPC分类号： B01D67/00 , C02F1/26 , C07C209/86
摘要： A superhydrophobic membrane and a preparation method therefor, and a method for concentrating and recycling MDI waste brine. The method for concentrating and recycling MDI waste brine comprises: 1) performing two-phase separation on MDI waste brine to produce an organic phase and a brine phase; 2) sequentially subjecting the brine phase to aniline extraction, reboil distillation, and TOC removal processes; and 3) washing the organic phase to obtain washing wastewater; enabling the washing wastewater to contact an extractant by means of the superhydrophobic membrane for membrane extraction; and transporting the washing wastewater having experienced the membrane extraction to a biochemical unit and then enabling same to enter a reclaimed water recycling system.
-
2.发明公开
公开(公告)号：EP4029603A1
公开(公告)日：2022-07-20
申请号：EP19952652.6
申请日：2019-11-12
发明人： FAN, Zhenlong , ZHANG, Hongke , GAO, Xueshun , ZENG, Fanxue , WANG, Junjun , ZHOU, Bo , HENG, Hua , LI, Yongfeng , XING, Jinming
摘要： Disclosed are a catalytic oxidation catalyst, a preparation method therefor, and a method for the deep treatment of organic matters in an MDI saline. The catalyst comprises a carrier and an active component, wherein the carrier is titanium dioxide, and the active component is an organic neutral ligand-metal complex type ionic liquid. The deep treatment method comprises: (1) adjusting the pH value of the MDI saline, and adding an oxidizing agent for treatment; and (2) bringing the MDI saline having been treated in step (1) into contact with the catalytic oxidation catalyst for a catalytic oxidation reaction to obtain a deeply treated saline. The catalyst can reduce or even avoid the loss of a metal from the catalyst while ensuring that the catalytic oxidation effect is improved. The deep treatment method is simple and readily practicable, has a high treatment efficiency, and does not produce secondary pollution.
-
搜索结果
2 条记录 (耗时 0.014 秒)
