Title:
FILTERING DEVICE AND METHOD FOR FILTERING AND REMOVING VIRUSES FROM PROTEIN-CONTAINING FEED LIQUID
Document Type and Number:
WIPO Patent Application WO/2023/134443
Kind Code:
A1
Abstract:
The present invention relates to the technical field of biological filtering. Disclosed in the present invention are a filtering device and method for filtering and removing viruses from a protein-containing feed liquid. The filtering device comprises: a filtering unit, a packaging layer, a liquid intake channel and a filtrate channel, wherein a filtering layer comprises a virus removing membrane, the LRV of virus impurities by the virus removing membrane is not lower than 4, the protein yield is not lower than 98%, the virus removing membrane comprises a pre-filtering layer and a separation layer which is used for intercepting viruses and has a pore diameter smaller than that of the pre-filtering layer, and at least one pre-filtering layer is located on the surface of the side, away from a filtrate diversion screen, of the virus removing membrane. The filtering device of the present invention has a simple structure and is convenient to operate, and the used virus removing membrane comprises the pre-filtering layer and the separation layer which is used for intercepting viruses and has a pore diameter smaller than that of the pre-filtering layer, providing a good virus removing effect on a protein-containing feed liquid.
Inventors:
JIA ANDY (CN)
YANG KAY (CN)
XU CASEY (CN)
YANG KAY (CN)
XU CASEY (CN)
Application Number:
PCT/CN2022/142613
Publication Date:
July 20, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
HANGZHOU COBETTER FILTRATION EQUIPMENT CO LTD (CN)
International Classes:
B01D36/00; B01D63/08; B01D65/00; C07K1/14; C07K1/34
Foreign References:
| CN115121030A | 2022-09-30 | |||
| US20080264852A1 | 2008-10-30 | |||
| CN113842792A | 2021-12-28 | |||
| US6827851B1 | 2004-12-07 | |||
| US20050269255A1 | 2005-12-08 | |||
| CN113856495A | 2021-12-31 | |||
| US20180178166A1 | 2018-06-28 | |||
| CN112387119A | 2021-02-23 | |||
| CN1787872A | 2006-06-14 | |||
| CN113694585A | 2021-11-26 | |||
| US20070138082A1 | 2007-06-21 | |||
| JP2013071100A | 2013-04-22 |
Attorney, Agent or Firm:
HANGZHOU CHUANGZHIZHUOYING INTELLECTUAL PROPERTY AGENCY ( GENERAL PARTNERSHIP) (CN)
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