Method for preparing a cementing material using smelting industrial waste slag after utilizing the simultaneous removal of S02 and NOx in flue gas and application of the cementing material obtained by the same
US11440842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Sep 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention belongs to the technical field of the resource treatment of industrial wastes, and particularly relates to a method for preparing a cementing material using smelting industrial waste slag after utilizing the simultaneous removal of SO2 and NOx in flue gas and an application of the cementing material obtained by the same. According to the invention, SO2 and NOx in the flue gas can be treated with the smelting industrial waste slag, meeting requirement of flue gas desulfurization and denitration; moreover, the smelting industrial waste slag can be purified and separated by means of waste gas resources to obtain a cementing material, realizing the resource utilization of the smelting industrial waste slag and waste gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.