The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2019
Filed:
Jan. 09, 2015
Tianhua Institute of Chemical Machinery and Automation Co., Ltd, Gansu, CN;
Xu Zhao, Gansu, CN;
Wanyao Zhang, Gansu, CN;
Zhongxin Sun, Gansu, CN;
Yongpeng Tan, Gansu, CN;
Xiangnan Zhai, Gansu, CN;
Tianbao Wang, Gansu, CN;
Yuanyue Liang, Gansu, CN;
Guohai Zhang, Gansu, CN;
Xiaopeng Feng, Gansu, CN;
Yanshun Shen, Gansu, CN;
Abstract
A solvent exchanger and a method is provided for: pressurizing a CTA slurry into a solvent exchanger for separation and obtaining a mother liquor, a bias flow mother liquor and a suspended matter A; washing the suspended matter A to obtain a primary filtrate, a bias flow primary filtrate and a suspended matter B; washing the suspended matter B to obtain a secondary filtrate, a bias flow secondary filtrate and a suspended matter C; washing the suspended matter C to obtain a tertiary filtrate, a bias flow tertiary filtrate and a suspended matter D; washing the suspended matter D to obtain a fourth filtrate, a bias flow fourth filtrate and a suspended matter E; washing the suspended matter E to obtain a fifth filtrate, a bias flow fifth filtrate and a filter cake; and after finished, back-flushing the filter cake and then pulping to obtain a slurry, and discharging.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile