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:
Mar. 19, 2019
Filed:
Dec. 03, 2015
Applicant:
Sichuan Ko Chang Technology Co., Ltd, Chengdu, CN;
Inventors:
Assignee:
SICHUAN KO CHANG TECHNOLOGY CO., LTD, Chengdu, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/68 (2006.01); C01B 7/20 (2006.01); B01D 53/77 (2006.01);
U.S. Cl.
CPC ...
B01D 53/68 (2013.01); B01D 53/77 (2013.01); C01B 7/20 (2013.01); B01D 2257/204 (2013.01); B01D 2257/2066 (2013.01); Y02P 20/154 (2015.11);
Abstract
A device and process for fluorine recovery from smoke after phosphorus absorption by hydration in KPA, wherein the device comprises a first-stage and second-stage fluorine absorption tower, which are both fluidized counter-current washing towers. The device according to the present invention has simple structure, low investment cost, high raw material utilization rate, and good fluorine recovery effects.
Hou, Yonghe. (2019). Device and process for fluorine recovery from smoke after phosphorus absorption by hydration in kiln process for production of phosphoric acid (U.S. Patent No. 10232312). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10232312
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile