Patents Assigned to QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
  • Patent number: 12285918
    Abstract: The present invention relates to a printing device and a printing method. The combination mode between materials in an additive manufacturing process is improved. A calculation unit is used for controlling an A pole unit and a B pole unit to be in contact with the materials, to form an energized circuit. The surface temperature of phase change material in the material between the A pole unit and the B pole unit is greater than or equal to a preset temperature so that the materials at a distance can be simultaneously combined.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: April 29, 2025
    Assignee: Qingdao University of Science and Technology
    Inventors: Yan He, Dianming Chu, Wenjuan Bai
  • Patent number: 12264119
    Abstract: A process and a device for continuous flow side-chain alkylation which relate to the technical field of organic synthesis. In this process and the device for continuous flow side-chain alkylation, an ibuprofen raw material is prepared with alkylbenzene as a raw material. This raw material alkylbenzene is easily available and has a low cost, and is suitable for scale-up production. Moreover, an entire preparation process adopts continuous chemical synthesis, and a reaction time of each stage can be precisely controlled, which is beneficial to control a total reaction time and reduce an amount of impurities produced. In this way, a purity and a yield of the ibuprofen raw material are improved. In summary, a continuous synthesis method for side-chain alkylation of alkylbenzene provided by the present disclosure shows a low cost and a high yield.
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: April 1, 2025
    Assignee: Qingdao University of Science and Technology
    Inventors: Peizhe Cui, Jianguang Qi, Wenhui Xu, Yinglong Wang, Zhaoyou Zhu, Kaiguang Wang, Xin Li, Fanqing Meng, Limei Zhong, Shuli Yin, Lei Han, Jianbo Jia, Zhonghui Zheng
  • Publication number: 20250011479
    Abstract: Disclosed are an iron-based catalyst and its application catalytic diene polymerization. The iron-based catalyst provided by the present application includes iron-containing organic compounds, alkyl aluminum compounds and isocyanide-containing organic compounds, and the molar ratio between the iron element of the iron-containing organic compounds, the alkyl aluminum compounds and the isocyanide-containing organic compounds is 1:(5˜100):(0.5˜100). The iron-based catalyst system of the present application can initiate polymerization of diene with high activity at high temperature by using isocyanide-containing organic compounds as an electron donor and alkyl aluminum compounds as a co-catalyst.
    Type: Application
    Filed: June 24, 2024
    Publication date: January 9, 2025
    Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chunyu ZHANG, Yingnan ZHAO, Lihua NA, Heng LIU, Xuequan ZHANG
  • Publication number: 20250011515
    Abstract: Disclosed is a method of adjusting the molecular weight of syndiotactic 1,2-polybutadiene prepared using an iron-based catalyst. In the present application, when an iron-based catalyst catalyzes the polymerization of butadiene to prepare syndiotactic 1,2-polybutadiene, alpha-olefins are added as a molecular weight regulator, and a chain transfer effect is achieved through competitive adsorption. At the same time, since alpha-olefins are stable to iron-based catalysts, cannot be initiated to polymerize, and are easy to separate from butadiene, they have a significant effect on molecular weight regulation and do not have a significant effect on activity, making it possible to prepare syndiotactic 1,2-polybutadiene thermoplastic elastomers with number average molecular weights ranging from 3,000-250,000. The syndiotactic 1,2-polybutadiene rubber prepared by the present application has better processability.
    Type: Application
    Filed: June 24, 2024
    Publication date: January 9, 2025
    Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chunyu ZHANG, Shiliang XU, Yao YU, Heng LIU, Xuequan ZHANG
  • Patent number: 12098047
    Abstract: For the defects that manual adhesive tape pasting is low in efficiency and high in cost, and it is difficult to automatically paste adhesive tapes at specified positions of inner and outer surfaces of an item according to a certain length through a handheld box sealer and an adhesive tape seal pasting mechanism, a cantilever type plane automatic adhesive tape pasting device is invented. A liftable two-stage telescopic cantilever adhesive tape pasting head structure, a roller type automatic adhesive tape feeding structure, an adjustable fixed-length cutting structure and a roller type pasting structure are adopted for the device to achieve the automatic adhesive tape pasting on inner and outer side planes of an item. After the item needing adhesive tape pasting is positioned, the pasting process is completely automatically conducted without manual participation, the labor intensity is reduced, the labor efficiency is improved.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: September 24, 2024
    Assignee: Qingdao University of Science and Technology
    Inventors: Shibao Wen, Yi Li, Chenxi Nie, Qin Du, Yuwei Feng, Luyao Wang, Shuo Wang, Leilei Yu
  • Patent number: 12072276
    Abstract: An online measurement device for crystal size and shape in a high-solid-content crystallization process includes a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a solution storage tank. A crystal-containing solution is arranged in the crystallization kettle; an inner wall of the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end. The contraction end is communicated with one end of the solution storage tank and one end of the crystallization kettle. The amplification end is communicated with the dilution device and the peristaltic pump. The peristaltic pump is communicated with the other end of the crystallization kettle. The solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline. A measurement instrument of the measurement device is arranged at the outer side of the solution amplifier.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: August 27, 2024
    Assignee: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Fangkun Zhang, Zidong Ai, Bing Wu, Baoming Shan
  • Publication number: 20240279452
    Abstract: Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Aihua HE, Chenguang LIU, Huafeng SHAO
  • Patent number: 11987567
    Abstract: The present invention discloses a synthesis method of lactide by confinement effect catalysis of crystalline porous polymer material, wherein the method comprising: (I) synthesis of catalyst; (II) synthesis of lactide by confinement effect catalysis; and (III) purification of lactide. In the present invention, a yield of L-lactide by catalysis of L-lactic acid by crystalline polymers is as high as 85.6%, which is 10% higher than the yield of lactide by H-? molecular sieve reported in documents currently available; it is easy to prepare the crystalline porous polymer material catalyst, which is environmental friendly, has a high yield and is recyclable, for consecutive 7 times the catalysis yield is maintained to be higher than 70%, and catalysis yield conservation rate is far higher than catalysis effects of catalysts reported in documents currently available.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: May 21, 2024
    Assignee: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yingjie Zhao, Wenqi Qiu, Hui Liu, Zhenxiu Zhang, Jinyu Zhao
  • Publication number: 20230391686
    Abstract: A process and a device for continuous flow side-chain alkylation which relate to the technical field of organic synthesis. In this process and the device for continuous flow side-chain alkylation, an ibuprofen raw material is prepared with alkylbenzene as a raw material. This raw material alkylbenzene is easily available and has a low cost, and is suitable for scale-up production. Moreover, an entire preparation process adopts continuous chemical synthesis, and a reaction time of each stage can be precisely controlled, which is beneficial to control a total reaction time and reduce an amount of impurities produced. In this way, a purity and a yield of the ibuprofen raw material are improved. In summary, a continuous synthesis method for side-chain alkylation of alkylbenzene provided by the present disclosure shows a low cost and a high yield.
    Type: Application
    Filed: August 2, 2023
    Publication date: December 7, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Peizhe CUI, Jianguang QI, Wenhui XU, Yinglong WANG, Zhaoyou ZHU, Kaiguang WANG, Xin LI, Fanqing MENG, Limei ZHONG, Shuli YIN, Lei HAN, Jianbo JIA, Zhonghui ZHENG
  • Publication number: 20230382828
    Abstract: The present disclosure belongs to the technical field of chemical separation and purification, and in particular relates to a purification method and device for continuous distillation and separation of an ibuprofen intermediate raw material. The purification method comprises the following steps: carrying out a primary distillation on synthetic liquid to obtain a primary material and recovered 4-methyl-1-pentene, then carrying out a second-stage distillation on the primary material to obtain a second-stage material and a recovered crude toluene product; and carrying out a third-stage distillation on the second-stage material to obtain isobutyl benzene and a recovered crude n-butylbenzene product. Embodiment results show that the purification method provided by the present disclosure is high in product recovery rate and high in product purity, the purity of isobutyl benzene is up to 99.99 wt %, the recovery rate is up to 99.9 wt %, the impurity content is not higher than 50 ppm.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 30, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Peizhe CUI, Xin LI, Yinglong WANG, Zhaoyou ZHU, Kaiguang WANG, Jianguang QI, Limei ZHONG, Zhonghui ZHENG, Wenhui XU, Jianbo JIA, Deping DU
  • Patent number: 11826726
    Abstract: The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: November 28, 2023
    Assignee: Qingdao University of Science and Technology
    Inventors: Yinglong Wang, Peizhe Cui, Zhaoyou Zhu, Fanqing Meng, Xin Li, Jianguang Qi, Limei Zhong, Deping Du, Bingkun Xia, Jianbo Jia, Zuxing Kou
  • Patent number: 11808678
    Abstract: A system for a deep-sea planktonic microorganism in-situ concentration, temperature maintaining and pressure maintaining sampling is provided and includes a sampling cylinder body with double layer structures, the sampling cylinder body is provided with a plug-shaped inner cavity, the plug-shaped inner cavity is provided with a transfer water outlet and a water inlet connected to a water inlet component, the plug-shaped inner cavity is connected to an end cover, the plug-shaped inner cavity is connected to a filter part, the sampling cylinder body is provided with a sampling water outlet, the sampling water outlet is respectively connected to a pressure maintaining device and a water outlet pipe, a temperature maintaining material layer and a temperature control component are connected between the double layer structures, and the temperature control component is electrically connected to a controller. The system can complete sampling on the premise of maintaining in-situ pressure of samples.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: November 7, 2023
    Assignee: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ping Fu, Junfei Wu, Siyang Wu, Yang Bai, Yuting Zhou, Guangxu Luan, Shuo Yin, Mingsai Zhang, Chenxu Wang
  • Publication number: 20230311096
    Abstract: The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 5, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Yinglong WANG, Peizhe CUI, Zhaoyou ZHU, Fanqing MENG, Xin LI, Jianguang QI, Limei ZHONG, Deping DU, Bingkun XIA, Jianbo JIA, Zuxing KOU
  • Patent number: 11777146
    Abstract: The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: October 3, 2023
    Assignee: Qingdao University of Science and Technology
    Inventors: Yuwei Chen, Jiying Yang, Junbo Che, Quan Wang, Jinjin Hu, Jianwen Wang, Yu Li, Jianming Zhang
  • Publication number: 20230241840
    Abstract: The present invention relates to a printing device and a printing method. The combination mode between materials in an additive manufacturing process is improved. A calculation unit is used for controlling an A pole unit and a B pole unit to be in contact with, the materials, to form an energized circuit. The surface temperature of phase change material in the material between the A pole unit and the B pole unit is greater than or equal to a preset temperature so that the materials at a distance can be simultaneously combined.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 3, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Yan He, Dianming Chu, Wenjuan Bai
  • Publication number: 20230155172
    Abstract: The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.
    Type: Application
    Filed: January 4, 2023
    Publication date: May 18, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Yuwei CHEN, Jiying YANG, Junbo CHE, Quan WANG, Jinjin HU, Jianwen WANG, Yu LI, Jianming ZHANG
  • Publication number: 20230152205
    Abstract: An online measurement device for crystal size and shape in a high-solid-content crystallization process includes a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a solution storage tank. A crystal-containing solution is arranged in the crystallization kettle; an inner wall of the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end. The contraction end is communicated with one end of the solution storage tank and one end of the crystallization kettle. The amplification end is communicated with the dilution device and the peristaltic pump. The peristaltic pump is communicated with the other end of the crystallization kettle. The solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline. A measurement instrument of the measurement device is arranged at the outer side of the solution amplifier.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 18, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Fangkun ZHANG, Zidong AI, Bing WU, Baoming SHAN
  • Patent number: 11624670
    Abstract: A measuring device for pore throat pressure of Jamin effect based on mechanochromic materials is provided and includes: a bubble pressurization part, configured to inject bubbles into a microscopic visualization test part; the microscopic visualization test part including a mechanochromic material and a pore throat structure, configured to characterize changes of pore throat pressure during bubble injection; a waste liquid recycling part, configured to recycle bubble waste liquid passing through the microscopic visualization test part; a data acquisition and analysis part, configured to acquire changing data of the pore throat pressure in the microscopic visualization test part and analyze the changing data to obtain the pore throat pressure. The device is simple in structure and easy to operate, and provides a method for measuring an internal surface pressure of an object. The method can realize a real time measurement of the pore throat pressure of Jamin effect.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: April 11, 2023
    Assignee: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Fei Wang
  • Patent number: 11512014
    Abstract: The present invention discloses a saline glycerine wastewater treatment system and technology. The whole technological process mainly includes a reaction process, an evaporation process, a crystallization process, a filtration process and a drying process. The present invention first proposes the use of an “ammonia-alkali reaction principle” to treat high-salt glycerine wastewater, which mainly solves the problem of treating a large amount of calcium chloride-containing glycerine wastewater produced in the production process of propylene oxide and epichlorohydrin in chlor-alkali industry, and places emphasis on solving the problems that low value-added calcium chloride produced in the wastewater treatment process of a traditional method has low quality, is basically accumulated as solid waste and is difficult to treat, and chloride ions have adverse effects on the biochemical process of wastewater treatment.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 29, 2022
    Assignee: Qingdao University of Science and Technology
    Inventors: Xiaoyan Sun, Xingwang Zang, Liang Wang, Li Xia, Shuguang Xiang
  • Patent number: 11433439
    Abstract: This application provides an intelligent robot for cleaning and mending a net cage and a method of using the intelligent robot, including: a control system, a main body, an attraction module, a motion module, a cleaning module and a mending module. The main body includes a streamlined pressure casing, and a drive mechanism and a water ballast tank which are located in the pressure casing. The attraction module includes electromagnets which are symmetrically provided at a bottom of the pressure casing. The motion module includes first and second motion mechanisms which are symmetrically provided at opposite sides of the pressure casing. A traveling path of the first motion mechanisms is perpendicular to a traveling path of the second motion mechanisms. The intelligent robot achieves cleaning and mending for both sides of the net cage, and is simple to operate, safe, high-efficient, economical and convenient.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: September 6, 2022
    Assignees: Zhejiang Ocean University, Qingdao University of Science and Technology
    Inventors: Lin Chen, Pan Zhang, Junmei Liu, Huaming Wang, Guorong Wu