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:
Aug. 26, 2025
Filed:
Apr. 22, 2020
Nanjing Gekof Institute of Environmental Protection Technology & Equipment Co., Ltd., Jiangsu, CN;
Nanjing Tech University, Jiangsu, CN;
Jiangsu Deyitong Environmental Protection Technology Co., Ltd., Jiangsu, CN;
Nanjing Liuyan Environmental Protection Technology Co., Ltd., Jiangsu, CN;
Haitao Xu, Nanjing, CN;
Yanzhong Xu, Nanjing, CN;
Mingbo Li, Nanjing, CN;
Renyuan Chen, Nanjing, CN;
Dahua Liu, Nanjing, CN;
Junmin Li, Nanjing, CN;
Jing Song, Nanjing, CN;
NANJING GEKOF INSTITUTE OF ENVIRONMENTAL PROTECTION TECHNOLOGY & EQUIPMENT CO., LTD., Jiangsu, CN;
NANJING TECH UNIVERSITY, Jiangsu, CN;
JIANGSU DEYITONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD., Jiangsu, CN;
NANJING LIUYAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD., Jiangsu, CN;
Abstract
A device for preparing a sulfite includes: a mother liquid tank and alkaline bin connected to a concentrated alkaline tank, connected to a tower reactor first reactor, one first reactor bottom output end is connected to a first gas-and-liquid mixer and another to a bubbling reaction kettle upper end, a bubbling reaction kettle gas output end is connected to the first mixer being connected to a first reactor upper portion; first reactor upper portion gas and second reactor bottom output ends are connected to a second mixer being connected to the second reactor top; and the bubbling reaction kettle is connected to a centrifugal machine or the alkaline tank, the machine being connected to a wet material bin and the liquid tank. A method includes preparing main and auxiliary absorption liquids, generating a middle slurry, reabsorbing residual gas SO, generating a target product, separating the target product, drying and packaging.