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

Inventor： Ping NING ,  Xin SONG ,  Xin SUN ,  Yixing MA ,  Kai LI ,  Senlin TIAN

IPC: C01B17/02 ,  B01D53/14 ,  B01D53/18 ,  F25J3/06

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.

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

IPC: C04B7/153 ,  C04B7/36 ,  C04B7/43 ,  B28B1/52

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.

公开(公告)号：US20210114878A1

公开(公告)日：2021-04-22

申请号：US17033788

申请日：2020-09-26

Applicant: Kunming University of Science and Technology

Inventor： Ping NING ,  Rui CAO ,  Xueqian WANG ,  Senlin TIAN ,  Yixing MA ,  Langlang WANG ,  Yingjie ZHANG ,  Peng CHEN

IPC: C01B25/28 ,  C01F11/46 ,  B01D53/50 ,  B01D53/80 ,  B01D53/73

Abstract: A method for production of ammonium phosphate from phosphate rock slurry. The method includes: introducing flue gas containing SO2 into a phosphate rock slurry, to yield an absorption solution; evaporating waste ammonia water containing 10-20 wt. % ammonia to yield ammonia gas; introducing the ammonia gas into the absorption solution at a temperature of 110-135° C. until a neutralization degree of the absorption solution reaches 1.5-1.6, thus yielding an ammonium phosphate solution and calcium sulfate; separating the calcium sulfate from the ammonium phosphate solution; and introducing the ammonium phosphate solution to a granulator for granulation to yield ammonium phosphate granules; drying and sieving the ammonium phosphate granules, thereby yielding ammonium phosphate.