公开(公告)号：US20160137557A1

公开(公告)日：2016-05-19

申请号：US14898471

申请日：2014-05-09

Applicant: NANJING UNIVERSITY OF TECHNOLOGY

Inventor： Xuehong GU ,  Zhenzhou SHI ,  Yuanyuan CHEN ,  Chun ZHANG ,  Nanping XU

IPC: C04B35/622 ,  B01D69/08 ,  B01D67/00 ,  B01D71/02

CPC classification number: C04B35/6225 ,  B01D67/0041 ,  B01D69/081 ,  B01D69/082 ,  B01D71/024 ,  B01D71/025 ,  B01D2325/04 ,  B01D2325/24 ,  C04B2235/3246 ,  C04B2235/6021

Abstract: The Invention relates to a method for preparing a multichannel hollow fiber membrane. According to a certain ratio, ceramic powder, a macromolecular polymer, an organic solvent, and a dispersant are mixed evenly to prepare a membrane casting solution; and after bubble removing processing is performed on the membrane casting solution, a membrane green body is formed with the cooperation of a multichannel hollow fiber die and phase inversion. After the membrane green body is roasted at a high temperature, a multichannel ceramic hollow fiber membrane is formed. The multichannel ceramic hollow fiber membrane has an asymmetric structure and a skeleton structure in an inner cavity and can meet the strength and flux requirements of a ceramic hollow fiber membrane.

Abstract translation: 本发明涉及一种制备多通道中空纤维膜的方法。 按照一定的比例，将陶瓷粉末，高分子聚合物，有机溶剂和分散剂均匀混合以制备膜浇铸溶液; 并且在膜浇铸溶液进行气泡去除处理之后，通过多通道中空纤维管芯的配合形成膜生坯并进行相转化。 在高温下烘烤膜生坯后，形成多孔陶瓷中空纤维膜。 多通道陶瓷中空纤维膜在内腔中具有不对称结构和骨架结构，可以满足陶瓷中空纤维膜的强度和通量要求。

公开(公告)号：US20160214064A1

公开(公告)日：2016-07-28

申请号：US14898472

申请日：2014-05-09

Applicant: NANJING UNIVERSITY OF TECHNOLOGY

Inventor： Xuehong GU ,  Dezhong LIU ,  Zhenzhou SHI ,  Chun ZHANG ,  Xuerui WANG

IPC: B01D71/02 ,  B01D61/36 ,  B01D67/00 ,  B01D69/08 ,  B01D69/10

CPC classification number: B01D71/028 ,  B01D61/362 ,  B01D67/0051 ,  B01D67/0088 ,  B01D67/009 ,  B01D67/0093 ,  B01D67/0095 ,  B01D69/02 ,  B01D69/08 ,  B01D69/105 ,  B01D2323/00 ,  B01D2325/02 ,  B01D2325/24 ,  B01D2325/30

Abstract: The invention relates to a high-strength hollow fiber zeolite membrane and its preparation method, characterized in that the support of the high-strength zeolite membrane has a multi-channel hollow fiber configuration. The preparation method comprises first preparing a crystal seed solution, then immersing the dry support with the multi-channel hollow fiber configuration in the crystal seed solution, and extracting and drying the support to obtain a crystal-seeded support; and finally placing the crystal-seeded support in a zeolite membrane synthetic fluid, performing hydrothermal synthesis, and taking out, washing and drying the product to obtain the high-strength hollow fiber zeolite membrane. The multi-channel hollow fiber support can provide high mechanical property, which greatly reduces the depreciation rate of the hollow fiber zeolite membrane equipment during use. Meanwhile, the multi-channel hollow fiber zeolite membrane prepared by the Invention possesses high loading density of permeation flux and membrane module and can reduce the production cost and improve the separation efficiency significantly, and thus lays the foundation for promoting the industrial application of the hollow fiber zeolite membrane.

Abstract translation: 本发明涉及一种高强度中空纤维沸石膜及其制备方法，其特征在于高强度沸石膜的载体具有多通道中空纤维构型。 该制备方法包括首先制备晶种溶液，然后将多通道中空纤维构型的干燥载体浸入晶种溶液中，提取和干燥载体以获得晶种载体; 最后将晶种载体置于沸石膜合成液中，进行水热合成，取出，洗涤和干燥产物，得到高强度中空纤维沸石膜。 多通道中空纤维支撑体可提供高机械性能，大大降低了中空纤维沸石膜设备在使用过程中的折旧率。 同时，本发明制备的多通道中空纤维沸石膜具有高渗透通量和膜组件的负载密度，可显着降低生产成本，提高分离效率，为促进中空管的工业应用奠定基础 纤维沸石膜。