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公开(公告)号：US20220396507A1
公开(公告)日：2022-12-15
申请号：US17663238
申请日：2022-05-13
Applicant: Kunming University of Science and Technology
Inventor： Yingjie LI , Senlin TIAN , Huaying LIU , Maoze HOU , Yina TU , Qun ZHAO
Abstract: Disclosed is a method for degrading antibiotics by aqueous phase transfer catalysis using an anionic liquid and hydrogen peroxide, including: adding hydrogen peroxide to a wastewater containing the antibiotics to obtain a first mixture, and adjusting a pH of the first mixture to 3-4 to form an aqueous phase, and adding a catalyst to a water-insoluble ionic liquid to obtain a second mixture, and stirring the second mixture to form an ionic liquid phase, wherein the catalyst is selected from the group consisting of ferrocene, iron dodecyl sulfonate, ferrous dodecyl sulfonate, and copper dodecyl sulfonate; and mixing the aqueous phase and the ionic liquid phase in a volume ratio of (8-11):1 to obtain a mixed phase, and stirring the mixed phase to degrade the antibiotics.
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Patent Agency Ranking
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
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.
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3.发明申请公开(公告)号：US20200299145A1
公开(公告)日：2020-09-24
申请号：US16820982
申请日：2020-03-17
Applicant: Kunming University of Science and Technology
Inventor： Ping NING , Senlin TIAN , Jianhong HUANG , Yunjian CHEN , Xuewei HU , Yingjie LI
Abstract: The present invention discloses a method for aluminum-enhanced dealkalization of red mud and separation and recovery of aluminum and iron. The method includes: dissolving red mud in water, introducing excessive SO2, introducing O2 for aeration, and refluxing part of alkaline leachate after filtering; when pH of a red mud mixture decreases to below 3, washing and filtering the red mud mixture, adding NaOH to acidic leachate to adjust its pH to a strongly alkaline level, aging and filtering the leachate, treating filter residue to recover Fe2O3, and refluxing part of alkaline leachate after filtering to the red mud mixture; and adjusting pH of the remaining alkaline leachate after filtering to a weakly acidic level, and conducting filtering to recover aluminum.
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公开(公告)号：US20230321596A1
公开(公告)日：2023-10-12
申请号：US18052366
申请日：2022-11-03
Applicant: Kunming University of Science and Technology
Inventor： Yingjie LI , Huaying LIU , Senlin TIAN , Jingyan CHEN , Zimeng NIE , Ziyue LI , Qun ZHAO , Ping NING , Xuewei HU , Jianhong HUANG
CPC classification number: B01D53/507 , B01D53/84 , B01D2257/302 , B01D2258/0283 , C22B3/18
Abstract: The present disclosure provides a method for wet removal of sulfur dioxide by silicate bacteria-enhanced pulp. The method includes: treatment of ore waste residue, activation and domestication of silicate bacteria, preparation of pulp, removal of sulfur dioxide, and resource utilization of a desulfurization product. The present disclosure combines flue gas desulfurization with resource utilization of the ore waste residue, and improves a desulfurization efficiency of the method by the pulp and a utilization rate of ore waste residue resources through silicate bacteria. The present disclosure has a high desulfurization efficiency, simple production process, and low cost, and realizes the recycling of resources such as the ore waste residue, the sulfur dioxide, and silicon. The present disclosure has obvious economic and environmental benefits and broad prospects for use.
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公开(公告)号：US20200299207A1
公开(公告)日：2020-09-24
申请号：US16821043
申请日：2020-03-17
Applicant: Kunming University of Science and Technology
Inventor： Ping NING , Senlin TIAN , Jianhong HUANG , Qin ZHANG , Xuewei HU , Bin LI
IPC: C05G3/80 , C09K17/08 , C05F5/00 , C05F3/00 , C05C9/00 , C05G1/00 , B01D53/50 , B01D53/80 , A01C21/00 , A01C23/00
Abstract: The present invention discloses a method for ammonium-enhanced flue gas desulfurization (FGD) by using red mud slurry. The method specifically includes: crushing red mud, sieving the crushed red mud, slurrying the red mud, conducting aeration treatment, adding an ammonium salt and/or ammonia, and conducting natural sedimentation to obtain pretreated red mud slurry and pretreated red mud liquor; adding an ammonium salt and/or ammonia to the slurry, adding water and conducting uniform mixing, conducting pre-FGD, conducting deep desulfurization on treated flue gas by using the pretreated red mud liquor, and directly discharging desulfurized flue gas; and charging the pretreated red mud slurry and the pretreated red mud liquor obtained after the treatment to a replacement tank below, adding lime milk to the replacement tank, conducting stirring and natural sedimentation, conducting soilization on subnatant thick red mud slurry, and refluxing the supernatant to a red mud aeration tank.
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6.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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