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1.发明申请公开(公告)号：US20200299134A1
公开(公告)日：2020-09-24
申请号：US16821623
申请日：2020-03-17
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Abstract: The present invention discloses a gas-solid separating method and a gas-solid separating system for simple substance sulphur in sulphur-containing exhaust. The gas-solid separating method for simple substance sulphur in sulphur-containing exhaust comprises the following steps: first, cooling sulphur-containing exhaust at an extremely high speed; then, separating dust; finally, recycling a heavy liquid phase solvent and simple substance sulphur; according to the method disclosed by the present invention, the separating efficiency of the simple substance sulphur is up to 90 percent or above; moreover, the exhaust is further purified, and an environment pollution accident is avoided; in a separating process of the simple substance sulphur, the heavy liquid phase solvent of the simple substance sulphur evaporates to form a gas phase solvent which can be recycled as the liquid phase solvent for reusing through cooling, so that the sulphur removing cost is reduced. The system comprises a quick cooling system, a low-temperature washing and purifying system, a light liquid phase and heavy liquid phase separating system, a washing liquid recycling system and a simple substance sulphur recycling system. The system disclosed by the present invention has the advantages of stability and high efficiency in sulphur-containing exhaust treatment, high simple substance sulphur separating efficiency, energy conservation and environmental protection.
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2.发明公开公开(公告)号：US20240240282A1
公开(公告)日：2024-07-18
申请号：US18415220
申请日：2024-01-17
Applicant: Kunming University of Science and Technology , Jiangxi Blue Environmental Engrg Tech Co., Ltd. , Yunnan Blue Enviromental Engineering Tech Co., Ltd.
Inventor： Xin SUN , Kai LI , Jie YANG , Yaqiong LUO , Xiaomei JIANG , Wanting ZHANG , Minghui HE , Xin TANG , Wenping QIAN
Abstract: Provides is a method for denitration of carbothermally reduced iron-containing nonferrous metal smelting slag mixed with advanced oxidizer. In the method, the iron-containing smelting slag is subjected to carbothermal reduction, such that metals or metal oxides in the smelting slag are reduced and transformed into active catalysts which could activate hydrogen peroxide to generate free radicals. Hydrogen peroxide is catalytically decomposed, generating ·OH free radicals, and ·OH free radicals generated further oxidize NOx. The reactions are performed at ambient temperature
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公开(公告)号：US20210331974A1
公开(公告)日：2021-10-28
申请号：US16897447
申请日：2020-06-10
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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.
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公开(公告)号：US20230416145A1
公开(公告)日：2023-12-28
申请号：US18339133
申请日：2023-06-21
Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY , YUNNAN BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD. , JIANGXI BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD.
Inventor： Kai LI , Xin SUN , Chunxue WANG , Jie YANG , Fei WANG , Chi WANG , Yixing MA , Yuan LI , Lei SHI , Siyang LI
CPC classification number: C04B7/1535 , C04B7/365 , C04B7/43 , B28B1/522 , C04B2103/408
Abstract: The present disclosure relates to a visible light-catalyzed translucent concrete, and a preparation method and use thereof. The preparation method includes: extracting an iron oxide from a copper slag, mixing the iron oxide with TiO2 to obtain a photocatalyst, and then mixing the photocatalyst with an additive to obtain a photocatalytic slurry; preparing a concrete slurry using the copper slag after iron extraction as an aggregate; and pouring the photocatalytic slurry, the concrete slurry, and the photocatalytic slurry in sequence into a mold pre-laid with an optical fiber, to obtain the visible light-catalyzed translucent concrete. In the visible light-catalyzed translucent concrete, iron in the copper slag is used as a part of raw materials of the photocatalyst, and the copper slag after iron extraction is used as an aggregate to replace natural sand and gravel. This solves environmental pollutions caused by the copper slag and realizes resource utilization.
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