baber/WOPTO huggingface dataset:
Patent WO-2022088520-A1 (WO)
Inventor: LI XIAODONG
IPC: A61K6/887
Filed: 2021-01-15
Abstract: A dentin bonding pretreatment composition based on microenvironment-induced nanoparticle redeposition, the composition comprising a binary system or a ternary system. The composition is applied after performing acid etching on dentin and before the use of a bonding agent. Under induction by a natural mineralized environment formed by a demineralized dentin matrix after acid etching, the bonding pretreatment agent can rapidly form a large amount of ACP nanoparticles in polar sites of the demineralized dentin matrix. These chemically bonded inorganic nanoparticles mask the polarity of the demineralized dentin matrix, eliminate the hydratability of a dentin organic matter, and improve the compatibility between a demineralized dentin matrix phase and a bonding agent phase at the bonding interface; in addition, the mechanical strength is improved, and same is resistant to collapses caused by water volatilization, thereby eliminating the dependence on water during dentin bonding and reducing the operation sensitivity during clinical bonding and the instability of a mixed layer caused by water residue. The composition can be prepared as a dental bonding pretreatment agent and is suitable for all bonding agent circumstances in the oral cavity.
Patent WO-2021147970-A1 (WO)
Title: Social relationship establishment method and apparatus
Inventor: LI JI
IPC: H04L29/06
Filed: 2021-01-21
Abstract: The present disclosure relates to a social relationship establishment method and apparatus, and a terminal, a server and a storage medium. The method comprises: in response to a request for establishing a social relationship with a target account by a first account, obtaining an interactive verification condition set by the target account for the first account, and a social interaction permission corresponding to the interactive verification condition; obtaining the social interaction state of the first account with the target account within the social interaction permission; and when the social interaction state satisfies the interaction verification condition, establishing the social relationship between the target account and the first account. When a user accepts another user's request to establish a social relationship, whether the social relationship is actually established can be determined according to whether the social interaction state between each other satisfies a corresponding interaction verification condition.
Patent WO-2022099937-A1 (WO)
Title: Lappaconitine derivative, preparation method therefor, and use thereof
Inventor: AISA HAJI AKBER
IPC: A61K31/439
Filed: 2021-01-27
Abstract: A lappaconitine derivative, a preparation method therefor, and a use thereof. The derivative is an enantiomer, a diastereomer, a racemate, and a mixture thereof, as well as a pharmaceutically acceptable inorganic or organic salt, a crystal form, and a solvate thereof; six preparation methods are utilized to obtain the lappaconitine derivative, diterpenoid alkaloid structures are enriched, the lappaconitine derivative is superior to lappaconitine in combating arrhythmia and in analgesic activity, and the toxicity is less than lappaconitine, and thus a synthesized lappaconitine derivative may be used to prepare a drug for treating a cardio-cerebrovascular disease and pain.
Patent WO-2021139825-A1 (WO)
Title: Dci generation method, cell scheduling method, system, device, and medium
Inventor: ZHOU HUAN
IPC: H04L5/00
Filed: 2021-02-05
Abstract: Disclosed are a DCI generation method, cell scheduling method, system, device, and medium; the DCI generation method comprises the following steps: obtaining the length of each field of a target DCI according to the length of each field of an expected DCI corresponding to a target cell, the quantity of target cells being a plurality thereof; it is expected that the DCI is DCI required for scheduling each target cell individually, the length of each field of the target DCI being the length required to be compatible with the corresponding field of the desired DCI; constructing a subfield for each field of the target DCI according to a preset correlation so that each subfield of each field of the target DCI corresponds to one target cell, respectively; generating each field of the target DCI according to the length and the correlation of each field of the target DCI so as to form the target DCI. The present invention makes a target DCI compatible with the scheduling information of a plurality of cells.
Patent WO-2021170139-A1 (WO)
Inventor: MA ZHENG
IPC: F28F9/00
Filed: 2021-03-01
Abstract: A heat exchanger, comprising a heat exchange tube, a first end assembly and a second end assembly. The first end assembly comprises a first circulation plate, a first current collecting assembly, and an end plate. The first current collecting assembly comprises a first mounting part, and a first protrusion part and a second protrusion part integrated with the first mounting part. The first protrusion part and the second protrusion part extend along the length direction of the first circulation plate and are arranged side by side along the width direction of the first circulation plate. The end plate and the first mounting part are fixedly connected to the first circulation plate. The first circulation plate is provided with a first through groove that communicates with the corresponding heat exchange tube. Compared to the related art, in the present application, the first mounting part, the first protrusion part, and the second protrusion part are an integral piece, and the first protrusion part and the second protrusion part may function as reinforcing ribs, thereby enhancing the strength of the first current collecting assembly.
Patent WO-2021258772-A1 (WO)
Inventor: ZHU QING
IPC: A61B17/12
Filed: 2021-03-04
Abstract: A medical device. The medical device (10) comprises: a perfusion catheter (100); a blocking mechanism (200), comprising a balloon (210) and a catheter body (220), the balloon (210) being provided on the outer surface of the perfusion catheter (100), and the catheter body (220) being in communication with the balloon (210) and being used for perfusing the balloon (210) with a filling agent; and a supporting mechanism (300), comprising a supporting body (310) and a driving body (320), the supporting body (310) being provided on the outer surface of the perfusion catheter (100) and being located at the proximal end of the balloon (210), and the driving body (320) being connected to the supporting body (310) and being used for driving the supporting body (310) to expand outwards or contract inwards in the radial direction of the supporting body. When used for surgical treatment of the aortic dissection, the device can provide a clear surgical field of view, facilitate the operation of a doctor, and reduce the time for circulatory arrest. Further disclosed is a medical device having a handle for accommodating an injection tube (230) and a locking assembly (340).
Patent WO-2021196985-A1 (WO)
Inventor: ZHOU ZHENG
IPC: B60W40/06
Filed: 2021-03-08
Abstract: Provided are an automatic driving method, an automatic driving device, a computer readable storage medium, and a computer program product. The method comprises: receiving first traveling related information of a first road segment ahead of the road that a first vehicle currently travels on sent from a network side device and information of a parking waiting area, the parking waiting area is used for parking the first vehicle before the first vehicle travels to the first road segment (S304); subsequently, determining, according to the first traveling related information, that the first road segment does not satisfy requirements of automatic driving conditions of the first vehicle (S305); and finally, controlling the first vehicle to travel to the parking waiting area (S306), such that when the first road segment ahead of the road that the first vehicle currently travels on does not satisfy the requirements of the automatic driving conditions, the vehicle can automatically enter the parking waiting area to achieve safe parking, thereby reducing potential safety hazards.
Patent WO-2021213098-A1 (WO)
Title: 富水砂卵石地层高效常压换刀施工方法
Inventor: LV TAO
IPC: E21D11/10
Filed: 2021-03-19
Abstract: 一种富水砂卵石地层高效常压换刀施工方法，该施工方法采用任意相邻的两个素桩（10）相互咬合在一起，使得加固完整性效果更好；该施工方法加固地层速度快，换刀作业安全性高、节约工期，节省成本。且使用此施工方法施工无噪声、无振动，对地层及周边环境影响小，少泥浆作业，施工现场洁净，减少了地面污染，节约能源，符合绿色施工规范要求。
Patent WO-2022198432-A1 (WO)
Inventor: YOU XIN
IPC: H04W64/00
Filed: 2021-03-23
Abstract: 本申请实施例提供了一种无线通信的方法及设备，在终端设备或LMF实体发起On-demand PRS请求之后，LMF实体可以激活相应的PRS配置信息，无需等待每个基站或TRP发送的PRS配置更新反馈，避免了终端设备、LMF实体、基站或TRP之间不必要的信令开销，从而优化通信系统性能。该无线通信的方法，包括：LMF实体向至少一个接入网设备发送第一信息；其中，该第一信息用于指示激活目标PRS配置信息。
Patent WO-2021208826-A1 (WO)
Title: Lens heat dissipation mechanism and projection device
Inventor: LIU PENGCHENG
IPC: G03B21/16
Filed: 2021-04-12
Abstract: A lens heat dissipation mechanism (100) and a projection device (1000). The lens heat dissipation mechanism (100) comprises a shell (5) and a first heat dissipation member (10). The first heat dissipation member (10) is provided in the shell (5), penetrates through the shell (5), and is connected to a lens (1) located outside the shell (5). The first heat dissipation member receives heat conducted by the lens (1) and can move with respect to the shell (5) along with movement of the lens (1). The problem of heat dissipation of a rear lens group (3) during focusing of the lens (1) is solved.
Patent WO-2022222065-A1 (WO)
Title: Step-down circuit control method and apparatus, and storage medium
Inventor: DENG JIAYONG
IPC: H02M1/36
Filed: 2021-04-21
Abstract: Disclosed in the present application are a step-down circuit control method and apparatus, and a storage medium. The method comprises: determining an initial output voltage reference value, determining an error signal according to the initial output voltage reference value and an output voltage value of a capacitor, determining a first input signal of a pulse modulation module, and using the error signal as a second input signal of the pulse modulation module; outputting, by means of the pulse modulation module, pulse modulation signals corresponding to the first input signal and the second input signal, the pulse modulation signals being used for adjusting the on-time of the first switching tube and the second switching tube; determining the duty cycle of a first switching tube and the duty cycle of a second switching tube according to the on-time; and adjusting the duty cycle of the first switching tube so that a voltage value of an inductor is less than or equal to an inductance voltage threshold, the inductance voltage threshold being determined according to a circuit current threshold that causes overcurrent protection of a step-down circuit. By adopting the present application, a start current can be effectively reduced, and the stability of a step-down circuit is improved.
Patent WO-2021244192-A1 (WO)
Title: 柔性显示装置及其制造方法、电子设备
Inventor: LI JIEWEI
IPC: G09F9/30
Filed: 2021-04-28
Abstract: 一种柔性显示装置（10，10a）及其制造方法、电子设备（100），包括层叠设置的圆偏振片（3，3a）、触控面板（2，2a，2b）和显示面板（1，1a），圆偏振片（3，3a）用于使通过的光束形成圆偏振光，触控面板（2，2a，2b）包括柔性的基板衬底（21）和设置于基板衬底（21）上的感测电极（22），而基板衬底（21）形成为第一相位延迟膜，第一相位延迟膜对光线能起到延迟作用，且对光线的延迟量为光线的λ/2的奇数倍。由此，能在实现窄边框的同时具有较好的显示效果。
Patent WO-2022105130-A1 (WO)
Title: Procédé de reconnaissance d'expression de composé, dispositif, appareil terminal et support de stockage
Inventor: YI MIAO
IPC: G06K9/00
Filed: 2021-04-29
Abstract: La présente demande est applicable au domaine technique de l'intelligence artificielle et concerne un procédé de reconnaissance d'expression de composé, ainsi qu'un dispositif, un appareil terminal et un support de stockage. Le procédé consiste à : effectuer une reconnaissance sur une image en attente de reconnaissance à l'aide d'un premier modèle de reconnaissance d'expression, d'un premier modèle cible et d'un second modèle cible afin d'obtenir séparément une première valeur de probabilité, une première valeur de probabilité de composé et une seconde valeur de probabilité de composé de chaque expression de composé; acquérir une première probabilité de classification erronée du premier modèle de reconnaissance d'expression, une première probabilité de classification erronée de composé de chaque premier modèle cible, ainsi qu'une seconde probabilité de classification erronée de composé de chaque second modèle cible; et obtenir un résultat de classification cible en fonction de la première valeur de probabilité, de la première probabilité de classification erronée, de la première valeur de probabilité du composé, de la première probabilité de classification erronée du composé, de la seconde valeur de probabilité du composé et de la seconde probabilité de classification erronée du composé. Le procédé de reconnaissance d'expression de composé permet d'obtenir, en combinant des résultats de prédiction et des probabilités de classification erronée de multiples modèles de reconnaissance d'expression, la prédiction précise d'une expression primaire et secondaire dans une image en attente de reconnaissance si l'image contient une expression de composé.
Patent WO-2022170686-A1 (WO)
Inventor: WANG ENGANG
IPC: B22D11/115
Filed: 2021-05-17
Abstract: An electromagnetic stirring device for improving liquid core feeding capacity and central quality of a casting blank. The device is a V-LEMS which mainly comprises a coil (6), a magnetic pole (7), a magnetic yoke (8) and a magnetic gathering cover (9), wherein the width of the magnetic pole is less than or equal to the width of the casting blank opposite thereto, the width of a tip of the magnetic pole is less than the width of the casting blank opposite thereto, and greater than or equal to the width of a liquid core of the casting blank opposite thereto, and the width of the tip of the magnetic pole is less than or equal to the width of the magnetic yoke. An electromagnetic stirring method based on the electromagnetic stirring device is further provided. An electromagnetic field of the electromagnetic stirring device acts on a liquid core area of the casting blank in a concentrated manner, and through different combinations of arrangement patterns of the V-LEMS, the height and the intensity of the up-down circulation motion or spiral motion of a liquid core melt of the casting blank are increased to promote mixing of an upper melt and a lower melt of the casting blank and homogenization of temperature and a solute thereof and to improve the feeding capacity of the upper melt for the solidification shrinkage of the lower melt, which reduces and eliminates the defects of centre segregation, looseness, shrinkage cavities, cracks, etc. of the casting blank and improves the quality of the casting blank and rolled materials.
Patent WO-2022142084-A1 (WO)
Inventor: ZHAO CHEN
IPC: G06K9/62
Filed: 2021-05-21
Abstract: 本申请实施例提供一种匹配筛选方法、装置、电子设备和计算机可读存储介质，该匹配筛选方法包括：电子设备获取初始匹配集合，初始匹配集合来源于图像对之间的初始匹配结果；通过至少一个裁剪模块从初始匹配集合中筛选出匹配子集，匹配子集中的正确匹配比例高于初始匹配集合中的正确匹配比例，至少一个裁剪模块用于获取初始匹配集合中每条初始匹配的一致性信息；该匹配子集用于处理与图像对相关的图像任务。
Patent WO-2021249233-A1 (WO)
Inventor: LIU DAOXUE
IPC: G06T7/00
Filed: 2021-06-01
Abstract: An image processing method, which belongs to the technical field of target recognition. The method comprises the following steps: extracting an edge feature of an image to be processed, so as to obtain a gradient a priori map Fg; extracting a texture feature of said image, so as to obtain a texture feature map Fv; extracting a structural feature of said image, so as to obtain a structural feature map Fs; performing contact splicing on the gradient a priori map Fg, the texture feature map Fv and the structural feature map Fs, so as to obtain a multi-feature splicing map Fc; and performing a convolution fusion operation on the multi-feature splicing map Fc, so as to obtain a multi-feature fusion map Ff. By means of the method, edge feature enhancement is first performed on an image to be processed, and a texture feature and a structural feature are then fused, such that a target feature in the image can be recognized more accurately.
Patent WO-2022007546-A1 (WO)
Inventor: XING HUI
IPC: G06F16/215
Filed: 2021-06-01
Abstract: 一种数据缩减方法和装置，涉及计算机领域，提高了数据缩减的性能。该方法包括：存储设备获取第一逻辑单元所存储的第一数据的第一业务类型（S301）；存储设备根据与第一业务类型匹配的第一数据缩减方式，处理第一数据（S302）；存储设备获取第二逻辑单元所存储的第二数据的第二业务类型（S303）；第二业务类型不同于第一业务类型；存储设备根据与第二业务类型匹配的第二数据缩减方式，处理第二数据（S304）；第一数据缩减方式包括数据压缩处理和/或重复数据删除处理；第二数据缩减方式包括数据压缩处理和/或重复数据删除处理；其中，第一数据缩减方式不同于第二数据缩减方式。
Patent WO-2022007625-A1 (WO)
Title: Disinfecting and sterilizing dust collector
Inventor: XU GUOQIANG
IPC: A47L5/24
Filed: 2021-06-22
Abstract: A disinfecting and sterilizing dust collector. A dust cup and a UV LED (3) acting on the dust cup are provided in the disinfecting and sterilizing dust collector. By providing the UV LED (3) that acts on the dust cup but not a floor brush, extremely strong disinfection and sterilization effects can be implemented on dust and garbage in the dust cup within a short period of time, and thus, sterilization and disinfection work can be performed while dust collection is performed.
Patent WO-2022002048-A1 (WO)
Title: Water tank heating method and unit, electronic device and sofc system
Inventor: SONG CUILING
IPC: H01M8/04992
Filed: 2021-06-29
Abstract: The invention provides a water tank heating method and unit, an electronic device and a solid oxide fuel cell (SOFC) system. Before the SOFC system is started, ice in a water tank has been heated up, so after the SOFC system is started, the heating time of the heated ice, i.e., the thawing time of the water tank, will be shortened. Further, in the ice heating process, a pre-set needed SOFC thawing time determined according to current stack outlet temperature is used as a heating control parameter. As the stack outlet temperature is a key factor influencing the starting time of the SOFC system, the heating control will be more accurate if the pre-set needed SOFC thawing time corresponding to the stack outlet temperature is used as a heating control parameter.
Patent WO-2022012383-A1 (WO)
Inventor: HUA RONGRONG
IPC: H04L12/28
Filed: 2021-07-06
Abstract: 本申请公开了一种报文传输的方法、装置、系统及存储介质，属于通信领域。所述方法包括：接收业务请求，所述业务请求包括待接入的终端设备的服务信息；根据所述终端设备的服务信息，确定第一设备和第一分片网络，所述第一分片网络是位于所述第一设备与第二设备之间的分片网络，所述业务请求由所述第二设备转发，所述第一分片网络用于传输所述终端设备发送的数据报文。本申请能够满足终端设备的网络性能需求。
Patent WO-2021254532-A1 (WO)
Inventor: WANG LEI
IPC: H02J3/38
Filed: 2021-07-23
Abstract: 一种逆变系统包括前级转换电路、后级转换电路和控制电路；前级转换电路用于将电源电压转换为直流电压并输出给后级转换电路，前级转换电路与后级转换电路之间的电压为直流母线电压；后级转换电路用于输出交流电；控制电路用于检测后级转换电路的输出端的直流分量，并将零值与直流分量作差以得到直流分量偏差值，并对直流分量偏差值进行PI调节得到电压补偿值，该电压补偿值用于调整直流母线电压。
Patent WO-2023284067-A1 (WO)
Inventor: JIANG SHENG
IPC: G06K9/62
Filed: 2021-08-20
Abstract: Disclosed in the embodiments of the present application are a facial nerve function evaluation method and apparatus, and a computer device and a storage medium. The method comprises: acquiring a facial video image for which a preset facial action is completed by a user; pre-processing the facial video image, so as to obtain a facial image, which satisfies a preset action amplitude requirement when the user completes the preset facial action; and inputting the facial image into a trained deep learning network model, so as to obtain a facial nerve function level of the user.
Patent WO-2022257281-A1 (WO)
Inventor: TAN WEN
IPC: G08G1/065
Filed: 2021-08-30
Abstract: 一种停车场车位预测方法及服务器，包括以下步骤，筛选出空车位数量大于零的停车场，计算车辆行驶到停车场的行驶时间；根据停车场的历史空车位变化速度数据预测当前时间段的空车位变化速度；根据当前时间段的空车位变化速度预测经过所述行驶时间后停车场的空车位数量。能够筛选有空车位以及距离用户较近的停车场，便于用户选择适宜的停车场停车。该方法还对这些停车场的空车位数量进行预测，根据当前停车场空车位数量和历史数据预测用户抵达停车场时停车场空车位数量，为用户提供更全面的信息以便用户做出更合理的选择，避免抵达停车场时空车位已经被占用的情况发生。
Patent WO-2022057729-A1 (WO)
Title: Multi-degree-of-freedom robot having self-propelled function
Inventor: XU WENSHENG
IPC: B25J5/00
Filed: 2021-09-10
Abstract: A multi-degree-of-freedom robot having a self-propelled function, comprising a frame (1), walking mechanisms (2), first-stage lifting/lowering mechanisms (3), a horizontal transverse mechanism (4), a second-stage lifting/lowering mechanism (5), a mechanical claw telescopic mechanism (6), and a mechanical claw (7). The two first-stage lifting/lowering mechanisms (3) are provided on the frame (1); the first-stage lifting/lowering mechanisms (3) drive the horizontal transverse mechanism (4) to achieve lifting/lowering; the horizontal transverse mechanism (4) drives the second-stage lifting/lowering mechanism (5) for horizontal transverse movement; the second-stage lifting/lowering mechanism (5) drives the mechanical claw telescopic mechanism (6) to achieve lifting/lowering; the mechanical claw telescopic mechanism (6) drives the mechanical claw (7) to achieve extension and contraction. The mechanical claw has four degrees of freedom by means of the first-stage lifting/lowering mechanisms, the horizontal transverse mechanism, the second-stage lifting/lowering mechanism, and the mechanical claw telescopic mechanism, and the driving manner adopts linear driving, such that the mechanical claw has a relatively large movement range, and can be used in a large-span area.
Patent WO-2022089097-A1 (WO)
Title: Procédé et appareil de traitement audio, dispositif électronique, et support de stockage lisible par ordinateur
Inventor: XU DONG
IPC: G10L13/02
Filed: 2021-09-22
Abstract: L'invention concerne un procédé et appareil de traitement audio, un dispositif électronique, et un support de stockage lisible par ordinateur, le procédé comportant les étapes consistant à: acquérir un audio cible sans effets, et déterminer l'instant de début et de fin de chaque mot de paroles dans l'audio cible sans effets (S101); détecter la hauteur de son de l'audio cible sans effets et la fréquence fondamentale dans la limite de l'instant de début et de fin de chaque segment, et déterminer le nom actuel de hauteur de son de chaque mot de paroles d'après la fréquence fondamentale et la hauteur de son (S102); effectuer un traitement d'élévation de ton avec une première étendue correspondante en cents et une pluralité de deuxièmes étendues différentes en cents séparément sur chaque mot de paroles pour obtenir une première harmonie et une pluralité de deuxièmes harmonies différentes, respectivement, la première étendue en cents étant un nombre entier positif de cents, la pluralité de deuxièmes étendues différentes en cents étant la somme de la première étendue en cents et d'une pluralité de troisièmes étendues différentes en cents, et la première étendue en cents et les troisièmes étendues en cents différant d'un ordre de grandeur (S103); et synthétiser la première harmonie et la pluralité de deuxièmes harmonies différentes pour former une harmonie multipistes, et mixer l'harmonie multipistes et l'audio cible sans effets pour obtenir un audio synthétisé sans effets (S104). Le procédé de traitement audio selon l'invention améliore l'effet auditif d'un audio sans effets.
Patent WO-2022121481-A1 (WO)
Inventor: YANG JUNPENG
IPC: B29D23/14
Filed: 2021-10-08
Abstract: 本发明公开一种用于生产降温固件的装置及方法，包括：挤出机、定型装置、冷却装置、牵引装置和切割装置。所述装置包括引导部件，所述引导部件用于引导降温固件型坯由挤出模头的出口端依次通过所述定型装置、所述冷却装置和所述牵引装置并进入所述切割装置进行切割。本发明能够生产降温效果好的降温固件，且操作方便，生产效率高。
Patent WO-2022105472-A1 (WO)
Inventor: YI ZHONGHUA
IPC: G10L15/16
Filed: 2021-10-11
Abstract: 本申请实施例提供了一种语音识别方法、装置和电子设备，能够使用声学模型生成第一语音数据对应的第一声学表征；使用第一语音数据对应的第一文本数据和第一声学表征训练数据生成器模型，以使数据生成器模型用于根据任意文本数据生成对应的声学表征；使用数据生成器模型生成第二文本数据对应的第二声学表征，第二文本数据的规模大于第一文本数据；使用第二文本数据和第二声学表征训练语言模型，以使语言模型用于根据声学模型输出的声学表征生成对应的文本序列。本申请实施例的技术方案，通过数据生成器模型增大了声学表征的规模，使得训练得到的语音识别系统可以应用于大词汇量连续语音识别的场景中，并且具有较高的准确性。
Patent WO-2022134741-A1 (WO)
Inventor: LU ZHENXI
IPC: G06F3/06
Filed: 2021-10-11
Abstract: 一种重读命令处理方法、闪存控制器及固态硬盘，涉及固态硬盘应用领域，该方法包括：接收处理器下发的读命令，将读命令挂载到命令队列（S10）；顺序执行命令队列中的读命令，在当前读命令执行完成之后，在命令队列中释放当前读命令，并执行命令队列中的下一读命令（S20）；在接收到当前读命令对应的读数据译码结果之后，根据读数据译码结果，更新当前读命令对应的读命令信息（S30）；根据更新后的读命令信息，将当前读命令再次挂载到命令队列，以重复执行当前读命令（S40）。通过更新读命令信息，将当前读命令再次挂载到命令队列，以重复执行当前读命令，能够提高固态硬盘的读性能。
Patent WO-2022100426-A1 (WO)
Inventor: YANG XIAODONG
IPC: C10G47/20
Filed: 2021-10-26
Abstract: 本发明提供一种异构脱蜡催化剂及其制备方法与生产润滑油基础油的方法。该异构脱蜡催化剂的制备方法包括：将含十元环结构的未成型分子筛进行碱金属盐的溶液和/或酸溶液改性得到第一次改性后的分子筛，经成型处理后用碱金属盐的溶液和/或酸溶液进行第二次改性，然后将贵金属活性组分负载其上得到异构脱蜡催化剂。生产润滑油基础油的方法包括：含蜡油与氢气的混合物依次与至少两种异构脱蜡催化剂进行异构化和裂化反应，反应产物与氢气混合后与补充精制催化剂进行芳烃饱和反应，反应产物经分馏得到润滑油基础油。使用上述异构脱蜡催化剂及生产润滑油基础油的方法制备得到的润滑油基础油实现了浊点的大幅度降低。