中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

55 records (took 0.026 seconds)

    High-purity meta-xylene production process
    22.
    发明授权
    High-purity meta-xylene production process 失效
    高纯度二甲苯生产工艺

    公开(公告)号：US06207871B1

    公开(公告)日：2001-03-27

    申请号：US08995270

    申请日：1997-12-19

    Applicant: Stuart D. Hellring ,  David L. Stern

    Inventor： Stuart D. Hellring ,  David L. Stern

    IPC: C07C1512

    CPC classification number: C07C5/2767 ,  C07C5/2775 ,  C07C2529/40 ,  C07C15/08

    Abstract: There is provided a process for producing high-purity meta-xylene by converting a hydrocarbon feedstream comprising at least about 5 wt % ethylbenzene and at least about 20 wt % meta-xylene, over a single molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50% of the ethylbenzene present in the feedstream. The process can further comprise stripping benzene and/or toluene by-products from the primary product stream to provide a secondary product stream comprising at least about 75 wt % mixed ortho-xylene and meta-xylene; and splitting the secondary product stream by removing substantially all of the ortho-xylene present therein to provide a tertiary product stream comprising at least about 95 wt % meta-xylene.

    Abstract translation: 提供了一种通过在乙基苯转化条件下在单分子筛催化剂上转化包含至少约5重量％乙苯和至少约20重量％间二甲苯的烃进料流来生产高纯度间二甲苯的方法，该条件足以提供 在原料流中存在大于50％的乙苯的主要产物流。 该方法还可以包括从初级产物流中汽提苯和/或甲苯副产物以提供包含至少约75重量％混合的邻二甲苯和间二甲苯的次生产物流; 并且通过除去其中存在的基本上所有的邻二甲苯来分离次级产物流，以提供包含至少约95重量％间二甲苯的叔产物流。

    Synthesis of crystalline ZSM-35
    23.
    发明授权
    Synthesis of crystalline ZSM-35 失效
    结晶ZSM-35的合成

    公开(公告)号：US5174980A

    公开(公告)日：1992-12-29

    申请号：US771571

    申请日：1991-10-04

    Applicant: Stuart D. Hellring ,  Randy F. Striebel

    Inventor： Stuart D. Hellring ,  Randy F. Striebel

    IPC: B01J29/65 ,  C01B39/44

    CPC classification number: B01J29/65 ,  C01B39/445

    Abstract: This invention relates to a new form of crystalline material identified as having the structure of ZSM-35, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.

    Abstract translation: 本发明涉及一种被认为具有ZSM-35结构的新形式的结晶材料，用于合成所述结晶材料的新的和有用的方法，以及使用根据本文制备的所述结晶材料作为有机化合物的催化剂，例如。 烃化合物，转化。

    Synthesis of crystalline mordenite-type material
    24.
    发明授权
    Synthesis of crystalline mordenite-type material 失效
    结晶丝光沸石型材料的合成

    公开(公告)号：US5173282A

    公开(公告)日：1992-12-22

    申请号：US771573

    申请日：1991-10-04

    Applicant: Stuart D. Hellring ,  Randy F. Striebel

    Inventor： Stuart D. Hellring ,  Randy F. Striebel

    IPC: B01J29/04 ,  C01B39/26

    CPC classification number: B01J29/04 ,  C01B39/265

    Abstract: This invention relates to a new form of crystalline mordenite-type material, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.

    Abstract translation: 本发明涉及一种新型的结晶丝光沸石型材料，用于合成所述结晶材料的新型和有用的方法，以及使用根据本文制备的所述结晶材料作为有机化合物的催化剂。 烃化合物，转化。

    FIBER FORMATION BY ELECTRICAL-MECHANICAL SPINNING
    26.
    发明申请
    FIBER FORMATION BY ELECTRICAL-MECHANICAL SPINNING 审中-公开
    纤维形成机电纺丝

    公开(公告)号：US20090102100A1

    公开(公告)日：2009-04-23

    申请号：US12255806

    申请日：2008-10-22

    Applicant: Stuart D. Hellring ,  Melanie S. Campbell ,  Calum H. Munro

    Inventor： Stuart D. Hellring ,  Melanie S. Campbell ,  Calum H. Munro

    IPC: D01D5/08 ,  D06M10/00

    CPC classification number: D01D5/0069 ,  D01D5/0985 ,  D01D5/18 ,  D01F6/18

    Abstract: A method of fiber formation by electrical-mechanical spinning is disclosed. A liquid starting material is fed to a rotating annular member such as a spinning cup. The liquid material is directed by centrifugal force to the periphery of the annular member where it is expelled in fibrous form. An electric charge is imposed on the liquid while on the annular member or while immediately being expelled from the annular member.

    Abstract translation: 公开了一种通过机电纺丝形成纤维的方法。 液体起始材料被供给到诸如旋转杯的旋转环形构件。 液体材料通过离心力引导到环形构件的周边，其中纤维形式被排出。 在环形构件上或当立即从环形构件排出时，对液体施加电荷。

    Silica-based slurry
    28.
    发明授权
    Silica-based slurry 失效
    二氧化硅基浆料

    公开(公告)号：US06656241B1

    公开(公告)日：2003-12-02

    申请号：US09882548

    申请日：2001-06-14

    Applicant: Stuart D. Hellring ,  Colin P. McCann ,  Charles F. Kahle ,  Yuzhuo Li ,  Jason Keleher

    Inventor： Stuart D. Hellring ,  Colin P. McCann ,  Charles F. Kahle ,  Yuzhuo Li ,  Jason Keleher

    IPC: G09G102

    CPC classification number: C09G1/02 ,  C09K3/1436 ,  C09K3/1463 ,  H01L21/3212

    Abstract: This invention relates to a slurry composition and a method of its preparation. In particular, the slurry composition of the present invention includes a silica wherein the silica comprises a surface modification. The silica-based slurry of the present invention is suitable for polishing articles and especially useful for chemical-mechanical planarization (“CMP”) of semiconductor and other microelectronic substrates.

    Abstract translation: 本发明涉及一种浆料组合物及其制备方法。 特别地，本发明的浆料组合物包括二氧化硅，其中二氧化硅包括表面改性。 本发明的二氧化硅基浆料适用于抛光制品，特别适用于半导体和其他微电子基板的化学机械平面化（“CMP”）。

    Method and apparatus for activating catalysts using electromagnetic radiation
    30.
    发明授权
    Method and apparatus for activating catalysts using electromagnetic radiation 失效
    使用电磁辐射活化催化剂的方法和装置

    公开(公告)号：US4970397A

    公开(公告)日：1990-11-13

    申请号：US367175

    申请日：1989-06-16

    Applicant: Gary J. Green ,  Stuart D. Hellring

    Inventor： Gary J. Green ,  Stuart D. Hellring

    IPC: B01J37/34 ,  G01N21/35

    CPC classification number: G01N21/3563 ,  B01J37/346 ,  G01N2021/3595 ,  Y10S502/522

    Abstract: This invention relates to electromagnetically induced thermal activation method and apparatus for in-situ preparation of samples including zeolite catalyst. More particularly, the invention relates to preparation of samples for IR spectroscopic characterization analysis. The technique is based on electromagnetically introduced thermal treatment of a catalyst situated in a specially designed vacum cell which is housed in the sample compartment of an IR analyzer. The sample is selectively heated by adsorption of direct infrared radiation from a laser. The sample is supported on a negligible mass which preferably comprises a wire made of nichrome.

    Abstract translation: 本发明涉及电磁感应热活化方法和装置，用于原位制备包括沸石催化剂的试样。 更具体地，本发明涉及用于IR光谱表征分析的样品的制备。 该技术基于对位于IR分析仪的样品室中的特别设计的真空电池中的催化剂的电磁引入热处理。 通过吸收来自激光的直接红外辐射来选择性地加热样品。 样品被支撑在可以忽略的质量上，其优选地包括由镍铬合金制成的线。

Patent Agency Ranking