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.

Date of Patent:
Oct. 29, 2024

Filed:

Mar. 29, 2022
Applicant:

Central South University, Changsha, CN;

Inventors:

Hui Liu, Changsha, CN;

Kaisong Xiang, Changsha, CN;

Liyuan Chai, Changsha, CN;

Fenghua Shen, Changsha, CN;

Xudong Liu, Changsha, CN;

Fangfang Zhu, Changsha, CN;

Lin Wu, Changsha, CN;

Huimin Yi, Changsha, CN;

Xiaobo Min, Changsha, CN;

Zhang Lin, Changsha, CN;

Qingzhu Li, Changsha, CN;

Qingwei Wang, Changsha, CN;

Haiying Wang, Changsha, CN;

Weichun Yang, Changsha, CN;

Assignee:

CENTRAL SOUTH UNIVERSITY, Changsha, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 9/23 (2021.01); B01D 53/50 (2006.01); B01D 53/78 (2006.01); C25B 1/01 (2021.01); C25B 1/50 (2021.01); C25B 11/052 (2021.01); C25B 11/057 (2021.01); C25B 11/075 (2021.01); C25B 11/081 (2021.01); C25B 15/08 (2006.01);
U.S. Cl.
CPC ...
C25B 9/23 (2021.01); B01D 53/502 (2013.01); B01D 53/78 (2013.01); C25B 1/01 (2021.01); C25B 1/50 (2021.01); C25B 11/052 (2021.01); C25B 11/057 (2021.01); C25B 11/075 (2021.01); C25B 11/081 (2021.01); C25B 15/08 (2013.01); B01D 2251/306 (2013.01); B01D 2251/604 (2013.01);
Abstract

A method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction includes electrochemically reducing sulfur dioxide absorbed in an aqueous solution into gaseous hydrogen sulfide with a membrane electrode, resulting in efficient and selective conversion of the sulfur dioxide absorbed in the aqueous solution into the hydrogen sulfide to avoid a deactivation of a cathode due to colloidal sulfur produced on the cathode and adhesion onto a surface of the cathode, wherein the method is carried out at ambient temperature and normal pressure without addition of a reducing agent, having no waste salts produced, and is simple in operation, and is convenient for large-scale application.


Find Patent Forward Citations

Liu, Hui. (2024). Method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction (U.S. Patent No. 12129566). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12129566

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

Loading…