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    PROCESS FOR MANUFACTURING HMB AND SALTS THEREOF
    1.
    发明申请
    PROCESS FOR MANUFACTURING HMB AND SALTS THEREOF 审中-公开
    制造HMB及其制品的方法

    公开(公告)号：US20140256980A1

    公开(公告)日：2014-09-11

    申请号：US14238802

    申请日：2012-08-15

    申请人： Yao-En Li

    发明人： Yao-En Li

    IPC分类号： C07C51/29

    CPC分类号： C07C51/29 ,  C07C59/01

    摘要： A continuous process and system for manufacturing beta-hydroxy-beta-methylbutyrate (HMB) and salts thereof is provided. The continuous process includes providing at least one oxidant and diacetone alcohol, and combining the at least one oxidant with the diacetone alcohol in a first flow reactor to produce a product stream comprising HMB or a salt thereof. Optionally, the process includes a second flow reactor for the acidification of a salt of beta-hydroxy-beta-methylbutyrate to produce beta-hydroxy-beta-methylbutyrate in free acid form.

    摘要翻译： 提供了用于制备β-羟基-β-甲基丁酸酯（HMB）及其盐的连续方法和系统。 连续方法包括提供至少一种氧化剂和双丙酮醇，并将第一流动反应器中的至少一种氧化剂与双丙酮醇组合以产生包含HMB或其盐的产物流。 任选地，该方法包括用于酸化β-羟基-β-甲基丁酸盐以产生游离酸形式的β-羟基-β-甲基丁酸酯的第二流动反应器。

    Superadiabatic combustion generation of reducing atmosphere for metal heat treatment
    2.
    发明授权
    Superadiabatic combustion generation of reducing atmosphere for metal heat treatment 失效
    超绝热燃烧产生金属热处理还原气氛

    公开(公告)号：US06458217B1

    公开(公告)日：2002-10-01

    申请号：US09515871

    申请日：2000-02-29

    申请人： Yao-En Li

    发明人： Yao-En Li

    IPC分类号： C21D176

    CPC分类号： C21D1/76 ,  B01J2208/00716

    摘要： Systems useful for superadiabatic combustion generation of a reducing atmosphere for metal heat treatment include a superadiabatic reactor which supplies a reducing atmosphere to a metal heat treatment apparatus. In one aspect, the reactor includes a porous medium and a start-up heater in the flow path of the gas that is to be heated. In another aspect, the gas is passed through a porous medium in alternating, opposite directions by the control of valves which lead the gas to and from the medium. In yet another aspect, a gas inflow pipe leads into an insulated porous bed from which the gas flows in a counter flow manner around the inflow pipe.

    摘要翻译： 用于金属热处理还原气氛的超绝热燃烧生成的系统包括向金属热处理装置供给还原气氛的超绝热反应器。 在一个方面，反应器包括多孔介质和待加热气体流动路径中的起动加热器。 在另一方面，通过控制将气体引导到介质和从介质引导的气体，气体以交替的相反方向通过多孔介质。 另一方面，气体流入管通向绝缘多孔床，气体以相对流动方式围绕流入管流动。

    Process and system for separation and recovery of perfluorocompound gases
    3.
    发明授权
    Process and system for separation and recovery of perfluorocompound gases 有权

    公开(公告)号：US06444011B1

    公开(公告)日：2002-09-03

    申请号：US09768262

    申请日：2001-01-25

    申请人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    发明人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    IPC分类号： B01D5322

    摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

    Method and apparatus for separation of SF6 from CF4 /air-containing gas stream
    4.
    发明授权
    Method and apparatus for separation of SF6 from CF4 /air-containing gas stream 失效
    从CF4 /含空气气流中分离SF6的方法和装置

    公开(公告)号：US06389845B1

    公开(公告)日：2002-05-21

    申请号：US09520963

    申请日：2000-03-08

    申请人： Yao-En Li

    发明人： Yao-En Li

    IPC分类号： F25J300

    CPC分类号： B01D53/229 ,  B01D53/002 ,  Y10S62/918 ,  Y10S62/922

    摘要： A method and apparatus for the separation and recovery of SF6 from a gas mixture consisting essentially of SF6, CF4, and N2. The method and apparatus involve membrane separation to separate N2 from SF6 and CF4, and liquefaction to separate SF6 from CF4.

    摘要翻译： 用于从基本上由SF 6，CF 4和N 2组成的气体混合物中分离和回收SF 6的方法和装置。 该方法和装置包括膜分离以将SF从SF 6和CF 4中分离出来，并液化以将SF 6与CF 4分离。

    Process for recovering CF.sub.4 and C.sub.2 F.sub.6 from vent gases of an aluminum production cell
    6.
    发明授权
    Process for recovering CF.sub.4 and C.sub.2 F.sub.6 from vent gases of an aluminum production cell 失效
    从铝生产电池的排气中回收CF4和C2F6的工艺

    公开(公告)号：US5968334A

    公开(公告)日：1999-10-19

    申请号：US71200

    申请日：1998-05-01

    申请人： Yao-En Li

    发明人： Yao-En Li

    IPC分类号： B01D53/22 ,  C25C3/22

    CPC分类号： C25C3/22 ,  B01D53/229 ,  B01D2257/20

    摘要： A process for recovering at least one of CF.sub.4 and C.sub.2 F.sub.6 from a vent gas from an aluminum electrolysis cell. The process includes the steps of:(a) removing inorganic fluorides from a vent gas comprising inorganic fluorides and at least one of CF.sub.4 and C.sub.2 F.sub.6 to obtain a purified vent gas; and(b) contacting the purified vent gas with a membrane at conditions effective to obtain a retentate stream rich in at least one of CF.sub.4 and C.sub.2 F.sub.6, and a permeate stream depleted in at least one of CF.sub.4 and C.sub.2 F.sub.6.

    摘要翻译： 一种从铝电解槽中排出的气体中回收CF4和C2F6中的至少一种的方法。 该方法包括以下步骤：（a）从包含无机氟化物和CF4和C2F6中的至少一种的排气中除去无机氟化物，以获得净化的排放气体; 和（b）在有效获得富含CF 4和C 2 F 6中的至少一种的滞留物流的条件下，和在CF4和C2F6中的至少一种中消耗的渗透物流，使净化出的排出气与膜接触。

    Process for recovering SF6 from a gas
    10.
    发明授权
    Process for recovering SF6 from a gas 失效
    从气体中回收SF6的工艺

    公开(公告)号：US5855647A

    公开(公告)日：1999-01-05

    申请号：US856756

    申请日：1997-05-15

    申请人： Yao-En Li ,  Magdy Meimari

    发明人： Yao-En Li ,  Magdy Meimari

    IPC分类号： B01D53/22 ,  B01D53/68

    CPC分类号： B01D53/225 ,  B01D53/22 ,  Y02C10/10

    摘要： A process for recovering SF.sub.6 from a gas is provided. The process includes the step of contacting a gas stream comprising SF.sub.6 and at least one of N.sub.2, O.sub.2, CO.sub.2, and H.sub.2 O with a membrane in at least one membrane separation unit at conditions effective to obtain a retentate stream rich in SF.sub.6 and a permeate stream rich in at least one of N.sub.2, O.sub.2, CO.sub.2, and H.sub.2 O.

    摘要翻译： 提供了从气体中回收SF6的方法。 该方法包括在有效获得富含SF 6的渗余物流和渗透物流的条件下，将包含SF 6和N 2，O 2，CO 2和H 2中的至少一种的气流与至少一个膜分离单元中的膜接触的步骤 富含N 2，O 2，CO 2和H 2 O中的至少一种。