公开(公告)号：US20240240344A1

公开(公告)日：2024-07-18

申请号：US18289835

申请日：2022-04-21

Applicant: ZHENGZHOU UNIVERSITY

Inventor： Zhongwei ZHAO

IPC: C25C3/28 ,  C25C7/02

CPC classification number: C25C3/28 ,  C25C7/025

Abstract: The present application relates to a method for preparing metallic titanium by molten salt electrolysis reduction of titanium dioxide, the method includes: constructing an electrochemical system, including an anode chamber filled with an anodic molten salt electrolyte and inserted with an anode, and a cathode chamber filled with a cathodic molten salt electrolyte and inserted with a cathode, where the anodic molten salt electrolyte and the cathodic molten salt electrolyte are connected through a liquid alloy accommodated at an inner bottom of the electrolytic cell without contacting with each other; and adding titanium dioxide to the anode chamber, and energizing for electrolysis to obtain metallic titanium at the cathode. The method of the present application has advantages such as low requirements for the titanium dioxide raw material, simple process flow, low energy consumption, environmental friendliness, and direct acquisition of high-purity metallic titanium.

公开(公告)号：US20240240343A1

公开(公告)日：2024-07-18

申请号：US18289708

申请日：2022-04-21

Applicant: ZHENGZHOU UNIVERSITY

Inventor： Zhongwei ZHAO

IPC: C25C3/26

CPC classification number: C25C3/26

Abstract: The present disclosure provides an electrochemical method for the separation of zirconium and hafnium, using an electrolytic cell equipped with an anode chamber and a cathode chamber, wherein the anode chamber and the cathode chamber are separated by a liquid alloy. In particular, the liquid alloy comprises a crude zirconium and a matrix metal with the metal activity lower than zirconium. After the electrolysis reaction is started, since the metal activity series in the liquid alloy is: hafnium>zirconium>>matrix metal, the hafnium in the liquid alloy is oxidized prior to the zirconium, the hafnium in ionic form migrates into the cathode electrolyte in the cathode chamber, leading to a continuous decrease of hafnium content in the liquid alloy, whereas the zirconium remains in the liquid alloy. Accordingly, deep separation of zirconium from hafnium is achieved, and therefore, nuclear-grade zirconium products can be prepared.

公开(公告)号：US20240157619A1

公开(公告)日：2024-05-16

申请号：US18492738

申请日：2023-10-23

Applicant: Zhengzhou University

Inventor： Jing Jiang ,  Lian Yang ,  Junwei Sun ,  Min Qiao ,  Caiyi Jia ,  Xiaofeng Wang ,  Qian Li

IPC: B29C48/00 ,  B29B7/48 ,  B29C44/34 ,  B29C48/40

CPC classification number: B29C48/0018 ,  B29B7/48 ,  B29C44/3415 ,  B29C48/40 ,  B29K2105/14

Abstract: The disclosure belongs to the technical field of heat insulation materials, and discloses an in-situ microfibrillated reinforced polymer composite heat insulation foam material as well as a preparation method and application thereof. This disclosure adopts a polypropylene matrix, a fiber-forming polymer, an elastomer and an antioxidant as a foam material. The foaming material is subjected to a primary melt blending process and a hot stretching process first, then subjected to a secondary melt blending process and cooling granulation and subjected to a pressing process, and a composite board is obtained. The composite board is subjected to supercritical fluid foaming process, and a composite heat insulation foam material is obtained.

公开(公告)号：US20240059566A1

公开(公告)日：2024-02-22

申请号：US18451699

申请日：2023-08-17

Applicant: Zhengzhou University

Inventor： Cuihong HOU ,  Shouyu GU ,  Yuan YAO ,  Haobin WANG ,  Yuqiong LIU ,  Hongling GUAN

IPC: C01B25/027 ,  C01B25/047 ,  C05B5/00 ,  C05B7/00 ,  C05B19/00

CPC classification number: C01B25/027 ,  C01B25/047 ,  C05B5/00 ,  C05B7/00 ,  C05B19/00

Abstract: The present disclosure provides a method for producing value-added by-product yellow phosphorus slag through an unconventional electric furnace process, derived from yellow phosphorus. This method is related to the technical field of comprehensive utilization of mineral resources. The disclosed method involves the following steps: mixing mid-low-grade phosphate rock, silica, coke, and a cosolvent to create a blended material, subjecting the blended material to high-temperature reduction in a yellow phosphorus electric furnace to yield yellow phosphorus and water-quenched slag, and then drying the water-quenched slag using yellow phosphorus tail gas to obtain the yellow phosphorus slag. According to this disclosure, a P2O5—CaO—SiO2—MgO—R multi-component system is established using the blended material.

公开(公告)号：US11905370B2

公开(公告)日：2024-02-20

申请号：US17477927

申请日：2021-09-17

Applicant: Zhengzhou University

Inventor： Minying Liu ,  Bingfeng Xue ,  Peng Fu ,  Zhe Cui ,  Xiaomeng Zhang ,  Wei Zhao ,  Xinchang Pang ,  Qingxiang Zhao

IPC: C08G69/30 ,  C08G69/06 ,  C08G69/26 ,  C08L77/00

CPC classification number: C08G69/30 ,  C08G69/06 ,  C08G69/26 ,  C08L77/00

Abstract: The disclosure relates to a synthesis method of long carbon chain semi-aromatic nylon. The synthesis method comprises the following steps: mixing a wet powdery nylon salt, an antioxidant, a catalyst, a surfactant and pellets, and carrying out a one-step solid state polymerization under dynamic mixing to obtain a powdery nylon; under dynamic mixing, enabling the pellets to promote the stirring and mixing of the material and reducing material adhesion to the wall; the one-step solid state polymerization comprises a pre-solid state polymerization and a post-solid state polymerization; in the pre-solid state polymerization, ensuring the nylon salt and the prepolymer not to be molten; in the post-solid state polymerization, gradually reducing the system pressure to vacuum, and keeping the system pressure in vacuum state for at least 1 hour; the temperature of the post-solid state polymerization is not lower than the termination temperature of the pre-solid state polymerization.

公开(公告)号：US20240052245A1

公开(公告)日：2024-02-15

申请号：US18358957

申请日：2023-07-26

Applicant: Zhengzhou University

Inventor： Hongyou Wan ,  Jingwei Yan ,  Wei Zhang ,  Lin Gong ,  Xinfeng Zhu ,  Chaohai Wang ,  Cong Guo

IPC: C10B53/02

CPC classification number: C10B53/02

Abstract: A lotus leaf derived biochar loaded with ZIF-67, and a preparation method therefor and an application method thereof are provided, which relate to the field of environmental protection wastewater treatment technologies. The preparation method includes: adding a pretreated lotus leaf carrier and ZIF-67 to methanol as solvent, to obtain a solution, performing an ultrasonic dispersion process on the solution, standing the solution after performing the ultrasonic dispersion process to perform a self-assembly reaction to thus obtain a reacted solution, and drying the reacted solution to obtain the lotus leaf derived biochar loaded with the ZIF-67. Recyclability and reusability of the ZIF-67 are effectively improved by the lotus leaf derived biochar loaded with ZIF-67, and organic pollutants in aqueous solution are degraded by effectively activating peroxymonosulfate.

公开(公告)号：US20230376748A1

公开(公告)日：2023-11-23

申请号：US17947175

申请日：2022-09-19

Applicant: Zhengzhou University of Light Industry

Inventor： Erlin TIAN ,  Wanwei HUANG ,  Jing CHENG ,  Zuhe LI ,  Xiao ZHANG ,  Weide LIANG ,  Song LI

IPC: G06N3/08

CPC classification number: G06N3/08

Abstract: A method for a self-adaptive service function chain mapping based on a deep reinforcement learning, comprising: establishing an SFC mapping model, dividing an SFC mapping process into a three-layer structure, and representing the structure with abstract parameters; building an SFCR mapping learning neural network, and mapping the abstract parameters to a state, an action and a reward value in the SFCR mapping learning neural network; establishing an empirical playback pool and updating network parameters; summarizing request rates and utilization rates of different VNFs, a number of currently deployed VNFs and a number of unactivated VNFs based on data in the empirical playback pool; and designing a VNF redeployment strategy, and redeploying the VNFs according to the summarized data. The method has good self-adaptability, and can improve the effective service cost rate and the request mapping rate for processing service requests from users in different time periods.

公开(公告)号：US11773027B1

公开(公告)日：2023-10-03

申请号：US18121072

申请日：2023-03-14

Applicant: Zhengzhou University of Aeronautics

Inventor： Yunpeng Ding ,  Zhiyuan Li ,  Yizhuang Zhang ,  Haoju Jiang ,  Wei Zhai

IPC: C04B35/52 ,  C04B35/628 ,  C04B35/74 ,  C04B35/626 ,  C04B41/00 ,  C04B35/65

CPC classification number: C04B35/52 ,  C04B35/6261 ,  C04B35/62842 ,  C04B35/62884 ,  C04B35/65 ,  C04B35/74 ,  C04B41/0072 ,  C04B2235/40 ,  C04B2235/422 ,  C04B2235/5454 ,  C04B2235/6567

Abstract: A preparation method and a product of a metal-matrix composite reinforced by nanoscale carbon materials are provided, including: plating metal layers on surfaces of the nanoscale carbon materials, and then adding mental particles to perform ball milling for dispersion and sintering. Volumes of the nanoscale carbon materials account for 0.01% to 30% of the metal-matrix composite. Size requirements of the nanoscale carbon materials and the metal particles are that: K×a sum of maximum cross-sectional areas of the nanoscale carbon materials in a unit volume≤a sum of surface areas of the mental particles in the unit volume; and the K represent a space compensation coefficient. The method is practical and effective, and the nanoscale carbon materials are efficiently and uniformly dispersed in metallic matrix. The obtained composite further has excellent mechanical, electrical and thermal properties, and is applied in metal-matrix composites, nano-electronic components, and biosensors.

公开(公告)号：US20230295052A1

公开(公告)日：2023-09-21

申请号：US18121072

申请日：2023-03-14

Applicant: Zhengzhou University of Aeronautics

Inventor： Yunpeng Ding ,  Zhiyuan Li ,  Yizhuang Zhang ,  Haoju Jiang ,  Wei Zhai

IPC: C04B35/52 ,  C04B35/628 ,  C04B35/74 ,  C04B35/65 ,  C04B41/00 ,  C04B35/626

CPC classification number: C04B35/52 ,  C04B35/62842 ,  C04B35/62884 ,  C04B35/74 ,  C04B35/65 ,  C04B41/0072 ,  C04B35/6261 ,  C04B2235/422 ,  C04B2235/40 ,  C04B2235/5454 ,  C04B2235/6567

Abstract: A preparation method and a product of a metal-matrix composite reinforced by nanoscale carbon materials are provided, including: plating metal layers on surfaces of the nanoscale carbon materials, and then adding mental particles to perform ball milling for dispersion and sintering. Volumes of the nanoscale carbon materials account for 0.01% to 30% of the metal-matrix composite. Size requirements of the nanoscale carbon materials and the metal particles are that: K×a sum of maximum cross-sectional areas of the nanoscale carbon materials in a unit volume ≤ a sum of surface areas of the mental particles in the unit volume; and the K represent a space compensation coefficient. The method is practical and effective, and the nanoscale carbon materials are efficiently and uniformly dispersed in metallic matrix. The obtained composite further has excellent mechanical, electrical and thermal properties, and is applied in metal-matrix composites, nano-electronic components, and bio sensors.

公开(公告)号：US20230082171A1

公开(公告)日：2023-03-16

申请号：US17930783

申请日：2022-09-09

Applicant: Zhengzhou University of Aeronautics

Inventor： Lei FAN ,  Linan AN

IPC: C04B40/02 ,  C04B35/563

Abstract: The present disclosure relates to a ceramic forging method, and belongs to the technical field of ceramic preparation. The ceramic forging method comprises a step of applying an oscillatory pressure to to-be-forged ceramic at a forging temperature to perform forging, In accordance with the ceramic forging method provided by the present disclosures, the deformation capacity and the deformation rate of a ceramic material are improved by changing a deformation mechanism of a ceramic material at the high temperature through oscillatory pressure, such that generation of micro fatigues inside the ceramic material and the deformation process of the material are greatly improved, then the ceramic material can reach the higher deformation rate and the larger deformation amount at lower temperature and pressure, and therefore ceramic forging can be achieved, and the cost is greatly reduced.