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:
Feb. 07, 2023
Filed:
Jun. 21, 2022
Shandong University, Shandong, CN;
Qingdao Daneng Environmental Protection Equipment Co., Ltd., Shandong, CN;
Qingdao Haitai Energy Science and Technology Research Institute, Shandong, CN;
Jingcai Chang, Qingdao, CN;
Yong Wang, Qingdao, CN;
Xiaojie Liang, Qingdao, CN;
Peng Wang, Qingdao, CN;
Shusheng Li, Qingdao, CN;
Chunyuan Ma, Qingdao, CN;
Yanhui Liu, Qingdao, CN;
SHANDONG UNIVERSITY, Qingdao, CN;
QINGDAO DANENG ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD., Qingdao, CN;
QINGDAO HAITAI ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE, Qingdao, CN;
Abstract
The present invention belongs to the technical field of metallurgical solid waste resource utilization, and particularly relates to acidification and carbonization coupling modified steel slag as well as a preparation process and an application thereof. The process specifically includes the following steps of adopting acetic acid, tributyl phosphate, ethanolamine and a NaOH and Ca(OH)emulsion as reaction reinforcing agents, and modifying the steel slag together with CO-rich lime kiln flue gas. The process for modifying the steel slag through acidification and carbonization coupling provided in the present invention has the advantages of simple reaction conditions and no need of high-pressure CO, additionally, the carbonation reaction rate can be greatly increased, and f-CaO and f-MgO in the steel slag can be effectively eliminated.