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。

公开(公告)号：US20160017308A1

公开(公告)日：2016-01-21

申请号：US14396317

申请日：2013-11-27

Applicant: NANJING UNIVERSITY OF TECHNOLOGY

Inventor： Jingjing Xie ,  Wenyan Ji ,  Hanjie Ying ,  Wujin Sun ,  Ting Guo ,  Yong Chen ,  Xiaochun Chen ,  Jinglan Wu

IPC: C12N9/88

CPC classification number: C12N9/88 ,  C12N15/63 ,  C12P19/26 ,  C12Y401/03003 ,  Y02P20/52

Abstract: It discloses a use of N-acetylneuraminic acid aldolase with an amino acid sequence as shown in SEQ ID NO: 2 in catalytic synthesis of N-acetylneuraminic acid. The preparation of N-acetylneuraminic acid is to use the N-acetylneuraminic acid aldolase with the amino acid sequence as shown in SEQ ID NO: 2 as a catalyst, and N-acetylmannosamine and pyruvic acid as substrates.

Abstract translation: 其公开了N-乙酰神经氨酸醛缩酶与N-乙酰神经氨酸的催化合成中具有SEQ ID NO：2所示氨基酸序列的用途。 N-乙酰神经氨酸的制备是使用N-乙酰神经氨酸醛缩酶与SEQ ID NO：2所示的氨基酸序列作为催化剂，N-乙酰甘露糖胺和丙酮酸作为底物。