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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 9776868 B1

PDFFull Text
Date of Patent:
Oct. 03, 2017

Filed:

Dec. 03, 2015

Apparatus for preparing phosphoric acid from fume exiting the kiln in a kiln phosphoric acid process

Applicant:

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

Inventors:

Yonghe Hou, Chengdu, CN;

Shifa Wei, Chengdu, CN;

Chenjuan Wei, Chengdu, CN;

Assignee:

SICHUAN KO CHANG TECHNOLOGY CO., LTD., Chengdu, CN;

Attorneys:

Zareefa B. Flener

Flener IP Law

Primary Examiner:

Natasha Young

Int. Cl.
CPC ...
B01J 19/00 (2006.01); B01J 19/24 (2006.01); C01B 25/00 (2006.01); C01B 25/16 (2006.01); C01B 25/18 (2006.01); C01B 25/20 (2006.01); B01D 53/00 (2006.01); B01D 53/14 (2006.01); B01D 53/32 (2006.01); B01D 53/34 (2006.01); B01D 53/38 (2006.01); B01D 53/40 (2006.01);
U.S. Cl.
CPC ...
C01B 25/185 (2013.01); B01D 53/1406 (2013.01); B01D 53/40 (2013.01); B01J 19/24 (2013.01); B01J 19/2465 (2013.01); C01B 25/20 (2013.01); B01D 2251/304 (2013.01); B01D 2252/103 (2013.01); B01D 2257/204 (2013.01); B01D 2257/2027 (2013.01); B01D 2257/55 (2013.01); B01J 2219/0011 (2013.01); B01J 2219/00074 (2013.01); B01J 2219/00103 (2013.01); B01J 2219/00108 (2013.01); B01J 2219/00159 (2013.01); B01J 2219/24 (2013.01);
Abstract

Disclosed is an apparatus for preparing phosphoric acid from a fume exiting the kiln in a kiln phosphoric acid process, the apparatus comprises a hydration tower and an acid solution cyclical spraying system, a fume inlet of the fume exiting the kiln is disposed at a lower portion of the hydration tower, a fume outlet after hydration and absorption is disposed at the top, a spraying device is disposed in a cavity of the hydration tower above the fume inlet, a liquid inlet of the acid solution cyclical spraying system is disposed on a bottom of the hydration tower, a liquid outlet of the acid solution cyclical spraying system is connected to a liquid intake pipe of the spraying device. The present invention has the advantages of simple structure, reasonable layout, strong adaptability, high raw material utilization rate, reduced contaminant emissions, and high recovery rate of phosphoric acid etc.

Find Patent Forward Citations

Hou, Yonghe. (2017). Apparatus for preparing phosphoric acid from fume exiting the kiln in a kiln phosphoric acid process (U.S. Patent No. 9776868). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9776868

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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