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.:

US 10023463 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 17, 2018

Filed:

Dec. 03, 2015
Applicant:

Sichuan Ko Chang Technology Co., Ltd, Chengdu, CN;

Inventors:

Yonghe Hou, Chengdu, CN;

Shifa Wei, Chengdu, CN;

Chenjuan Wei, Chengdu, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B 25/20 (2006.01); B01D 53/68 (2006.01); B01D 1/16 (2006.01);
U.S. Cl.
CPC ...
C01B 25/20 (2013.01); B01D 1/16 (2013.01); B01D 53/68 (2013.01); B01D 2257/2027 (2013.01); B01D 2257/2066 (2013.01); B01D 2257/55 (2013.01); B01D 2258/0283 (2013.01); Y02P 20/154 (2015.11);
Abstract

Disclosed is a method for phosphorus absorption by hydration and fluorine recovery for a fume exiting a kiln in a kiln process for the production of phosphoric acid, comprising the following steps: a fume containing POand fluorine exiting a kiln is introduced into a hydration tower, the fume performs heat and mass transfer with the spraying liquid, with most of the phosphoric acid produced being absorbed into the spraying liquid; the phosphoric acid solution falling from the spraying finally enters the acid solution circulating and spraying system; the fume discharged from a fume outlet then passes through a phosphoric acid mist capturing tower and a mist removing and separating tower successively, such that the phosphoric acid mist entrained in the fume exiting the hydration tower is further captured.


Find Patent Forward Citations

Hou, Yonghe. (2018). Phosphorus absorption by hydration and fluorine recovery for fume exiting kiln in kiln phosphoric acid process (U.S. Patent No. 10023463). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10023463

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