Patents by Inventor Yuexi Zhou
Yuexi Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11666892Abstract: A method for preparing a supported two-component metal oxide ozone catalytic oxidation catalyst for an advanced treatment of a petrochemical wastewater is provided. The supported two-component metal-oxide ozone catalytic oxidation catalyst is prepared from commercially-available active alumina balls by the steps of carrier activation, impregnating liquid preparation, carrier impregnation, catalyst roasting, and catalyst cleaning. The supported two-component metal oxide ozone catalytic oxidation catalyst has product stability, is reusable, and is of significance in application of ozone catalytic oxidation technologies as well as energy conservation and consumption reduction for petrochemical wastewater treatment plants.Type: GrantFiled: September 7, 2020Date of Patent: June 6, 2023Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENT SCIENCESInventors: Changyong Wu, Yuexi Zhou, Liya Fu
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Publication number: 20220111362Abstract: A method for preparing a supported two-component metal oxide ozone catalytic oxidation catalyst for an advanced treatment of a petrochemical wastewater is provided. The supported two-component metal-oxide ozone catalytic oxidation catalyst is prepared from commercially-available active alumina balls by the steps of carrier activation, impregnating liquid preparation, carrier impregnation, catalyst roasting, and catalyst cleaning. The supported two-component metal oxide ozone catalytic oxidation catalyst has product stability, is reusable, and is of significance in application of ozone catalytic oxidation technologies as well as energy conservation and consumption reduction for petrochemical wastewater treatment plants.Type: ApplicationFiled: September 7, 2020Publication date: April 14, 2022Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENT SCIENCESInventors: Changyong WU, Yuexi ZHOU, Liya FU
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Patent number: 10974981Abstract: A method for reducing pollutant discharge in phenol acetone production, comprising at least one of the following steps: (A) collecting phenolic wastewater generated by a phenol-acetone plant, adjusting the pH value to acidic, and performing extraction and recovery on the phenols in wastewater using cumene as an extracting agent; (B) reducing the acetone content in the wastewater from a column bottom by means of optimizing the process of an acetone refining column; (C) treating the wastewater from the column bottom of the acetone refining column by using a permselective membrane, and recovering alkali; (D) neutralizing the wastewater obtained from step (C), mixing the neutralized wastewater with a condensation liquid at the top of a cumene oxidation column, and carrying out a detoxification treatment; (E) carrying out an oil separation treatment on total discharged wastewater from the phenol-acetone plant, and recovering organic matters comprising hydrocarbons; and (F) carrying out a biological treatment, a coType: GrantFiled: March 31, 2017Date of Patent: April 13, 2021Assignee: Chinese Research Academy of Environmental SciencesInventors: Yuexi Zhou, Yudong Song
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Publication number: 20200346959Abstract: A method for reducing pollutant discharge in phenol acetone production, comprising at least one of the following steps: (A) collecting phenolic wastewater generated by a phenol-acetone plant, adjusting the pH value to acidic, and performing extraction and recovery on the phenols in wastewater using cumene as an extracting agent; (B) reducing the acetone content in the wastewater from a column bottom by means of optimizing the process of an acetone refining column; (C) treating the wastewater from the column bottom of the acetone refining column by using a permselective membrane, and recovering alkali; (D) neutralizing the wastewater obtained from step (C), mixing the neutralized wastewater with a condensation liquid at the top of a cumene oxidation column, and carrying out a detoxification treatment; (E) carrying out an oil separation treatment on total discharged wastewater from the phenol-acetone plant, and recovering organic matters comprising hydrocarbons; and (F) carrying out a biological treatment, a coType: ApplicationFiled: March 31, 2017Publication date: November 5, 2020Inventors: Yuexi ZHOU, Yudong SONG
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Patent number: 10647603Abstract: Provided is a method of treating wastewater and recovering resources in acrylic fiber production, comprising the following steps: 1) filtering wastewater from water-washing and filtering unit of acrylic fiber plants by a filter to intercept and recover high-molecular-weight polymer contained therein, and then making the recovered polymer returned back to the acrylic fiber production and entered the finished product, optionally, reusing part of filtered wastewater as low salinity water in the water-washing and filtering unit: 2) removing non-interceptable high-molecular-weight polymer in the wastewater by subjecting the wastewater to coagulation and air floatation treatment; 3) introducing the effluent into biological treatment unit and adding polyvalent metal ions as an adsorption promoter to increase the removal of the non-biodegradable organics in the biological treatment unit; and 4) removing the organics remained in the effluent from the biological treatment unit by an advanced treatment.Type: GrantFiled: April 14, 2017Date of Patent: May 12, 2020Assignee: Chinese Research Academy of Environmental SciencesInventors: Yuexi Zhou, Jinyuan Jiang, Yudong Song
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Patent number: 10526217Abstract: The present application discloses a method for producing acrylate with low pollutant discharge. The method has the advantages of high raw material utilization efficiency, low concentration, low salinity and low toxicity of wastewater pollutant, easy treatment of wastewater and etc.Type: GrantFiled: April 21, 2017Date of Patent: January 7, 2020Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Yuexi Zhou, Yudong Song
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Patent number: 10335760Abstract: The present invention provides a method for reducing or controlling wastewater and pollutant from emulsion polymerization resin production, comprising the following steps: (1) optimizing an emulsion polymerization reactor to lengthen a cleaning interval of the reactor so as to reduce the volumes of reactor cleaning wastewater and pollutant discharge; (2) demulsifying latex filter cleaning wastewater and removing a latex material so as to reduce the volume of the pollutant discharge; (3) demulsifying the highly concentrated reactor cleaning wastewater, then performing flotation recovery; (4) mixing graft polymerization wastewater and 1,3-diene polymerization wastewater, then performing demulsification; (5) mixing the demulsified latex wastewater and condensation and drying wastewater, then performing a coagulation and dissolved air flotation treatment; and (6) implementing a biological treatment process on the effluent from the coagulation and dissolved air flotation treatment to remove an organic material, niType: GrantFiled: February 22, 2017Date of Patent: July 2, 2019Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Yuexi Zhou, Yudong Song
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Publication number: 20190127244Abstract: The present application discloses a method for producing acrylate with low pollutant discharge. The method has the advantages of high raw material utilization efficiency, low concentration, low salinity and low toxicity of wastewater pollutant, easy treatment of wastewater and etc.Type: ApplicationFiled: April 21, 2017Publication date: May 2, 2019Applicant: Chinese Research Academy of Environmental SciencesInventors: Yuexi ZHOU, Yudong SONG
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Publication number: 20190127254Abstract: Provided is a method of treating wastewater and recovering resources in acrylic fiber production, comprising the following steps: 1) filtering wastewater from water-washing and filtering unit of acrylic fiber plants by a filter to intercept and recover high-molecular-weight polymer contained therein, and then making the recovered polymer returned back to the acrylic fiber production and entered the finished product, optionally, reusing part of filtered wastewater as low salinity water in the water-washing and filtering unit; 2) removing non-interceptable high-molecular-weight polymer in the wastewater by subjecting the wastewater to coagulation and air floatation treatment; 3) introducing the effluent into biological treatment unit and adding polyvalent metal ions as an adsorption promoter to increase the removal of the non-biodegradable organics in the biological treatment unit; and 4) removing the organics remained in the effluent from the biological treatment unit by an advanced treatment.Type: ApplicationFiled: April 14, 2017Publication date: May 2, 2019Inventors: Yuexi ZHOU, Jinyuan JIANG, Yudong SONG
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Publication number: 20190046948Abstract: The present invention provides a method for reducing or controlling wastewater and pollutant from emulsion polymerization resin production, comprising the following steps: (1) optimizing an emulsion polymerization reactor to lengthen a cleaning interval of the reactor so as to reduce the volumes of reactor cleaning wastewater and pollutant discharge; (2) demulsifying latex filter cleaning wastewater and removing a latex material so as to reduce the volume of the pollutant discharge; (3) demulsifying the highly concentrated reactor cleaning wastewater, then performing flotation recovery; (4) mixing graft polymerization wastewater and 1,3-diene polymerization wastewater, then performing demulsification; (5) mixing the demulsified latex wastewater and condensation and drying wastewater, then performing a coagulation and dissolved air flotation treatment; and (6) implementing a biological treatment process on the effluent from the coagulation and dissolved air flotation treatment to remove an organic material, niType: ApplicationFiled: February 22, 2017Publication date: February 14, 2019Inventors: Yuexi ZHOU, Yudong SONG
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Patent number: 10118157Abstract: A preparation method of an iron-cobalt fenton-like catalyst includes steps of: adopting FeCl2.4H2O and CoCl2.6H2O as reaction precursors, KBH4 as a reaction reducing agent, and polyvinyl pyrrolidone (PVP) as a surface protecting agent; preparing with a liquid phase reduction method; and after aging, suction filtration, washing, and vacuum drying, obtaining a product of the iron-cobalt fenton-like catalyst. The iron-cobalt fenton-like catalyst has a fast reaction, a relatively high treatment efficiency and a relatively wide adaptability. Moreover, an application of the iron-cobalt fenton-like catalyst in an industrial wastewater treatment is provided.Type: GrantFiled: October 24, 2014Date of Patent: November 6, 2018Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Jinyuan Jiang, Yuexi Zhou
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Publication number: 20170118444Abstract: The present document discloses a video conference access method. A conference initiator creates a video conference, and sends conference information of the video conference to a call management server; the call management server sends a first notice to a participant according to the received conference information; the participant triggers a first conference television terminal to access the video conference according to the received first notice; and the participant triggers a second conference television terminal to access the video conference according to the received first notice when a conference site is changed. The present document further discloses a video conference access system and a storage medium.Type: ApplicationFiled: September 19, 2014Publication date: April 27, 2017Applicant: ZTE CorporationInventors: Huijing XU, Yuexi ZHOU
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Publication number: 20160271591Abstract: A preparation method of an iron-cobalt fenton-like catalyst includes steps of: adopting FeCl2.4H2O and CoCl2.6H2O as reaction precursors, KBH4 as a reaction reducing agent, and polyvinyl pyrrolidone (PVP) as a surface protecting agent; preparing with a liquid phase reduction method; and after aging, suction filtration, washing, and vacuum drying, obtaining a product of the iron-cobalt fenton-like catalyst. The iron-cobalt fenton-like catalyst has a fast reaction, a relatively high treatment efficiency and a relatively wide adaptability. Moreover, an application of the iron-cobalt fenton-like catalyst in an industrial wastewater treatment is provided.Type: ApplicationFiled: October 24, 2014Publication date: September 22, 2016Inventors: Jinyuan Jiang, Yuexi Zhou