公开(公告)号：US5372716A

公开(公告)日：1994-12-13

申请号：US929727

申请日：1992-08-13

Applicant: Joseph M. Levy ,  Raymond K. Houck

Inventor： Joseph M. Levy ,  Raymond K. Houck

IPC: B01D11/02 ,  G01N1/34 ,  G01N7/04 ,  G01N30/02 ,  G01N30/06 ,  B01D15/08

CPC classification number: B01D11/0203 ,  G01N7/04 ,  G01N2001/4061 ,  G01N2030/025 ,  G01N2030/062 ,  G01N30/02

Abstract: The present invention is a collection system for use with supercritical fluid extraction. The system comprises a device for collecting analyte from a fluid having the same. There is also a restrictor for controlling flow of analyte to the collecting device. The restrictor converts the fluid with analyte from a first pressure to a second pressure. The second pressure is less than the first pressure. The first pressure is a supercritical pressure. The restrictor is in fluidic communication with the collecting device. There is also a device for deabsorbing the analyte from the collecting device. The deabsorbing device is in fluidic communication with the collecting device. The collection system also includes a chromatograph for analyzing the analyte. The chromatograph is in fluidic communication with the collecting device to receive deabsorbed analyte. The chromatograph is remote from the collecting device. The chromatograph can be either a gas chromatograph or a liquid chromatograph. In one embodiment of the collection system, the deabsorbing device backflushes deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is in an opposite direction to the flow of fluid during collection. Alternatively, the deabsorbing device foreflushes the deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is the same direction as the flow of fluid during collection.

Abstract translation: 本发明是用于超临界流体萃取的收集系统。 该系统包括用于从具有该分析物的流体收集分析物的装置。 还存在用于控制分析物流向收集装置的限制器。 限流器将具有分析物的流体从第一压力转换为第二压力。 第二压力小于第一压力。 第一个压力是超临界压力。 限流器与收集装置流体连通。 还有一种用于从收集装置中吸收分析物的装置。 脱吸装置与收集装置流体连通。 收集系统还包括用于分析分析物的色谱仪。 色谱仪与收集装置流体连通，以接收去吸收的分析物。 色谱仪远离收集装置。 色谱仪可以是气相色谱仪或液相色谱仪。 在收集系统的一个实施例中，脱吸装置将吸收流体通过收集装置反冲洗成色谱仪。 也就是说，在吸收期间流体的流动与收集期间的流体流相反。 或者，脱吸装置通过收集装置将去吸收流体前驱到色谱仪中。 也就是说，吸收时的流体流动与收集期间的流体流动方向相同。

公开(公告)号：US5356538A

公开(公告)日：1994-10-18

申请号：US781086

申请日：1991-10-21

Applicant: Chien M. Wai ,  Kenneth Laintz

Inventor： Chien M. Wai ,  Kenneth Laintz

IPC: B01D11/02 ,  B01D11/04 ,  B08B7/00 ,  B09C1/02 ,  C01F17/00 ,  C22B3/16 ,  C22B3/26 ,  C22B59/00 ,  G21F9/12

CPC classification number: B01D11/0203 ,  B01D11/0407 ,  B08B7/0021 ,  B09C1/02 ,  C01F17/0006 ,  C22B3/002 ,  C22B3/1641 ,  C22B59/00 ,  G21F9/125 ,  Y02P10/234 ,  Y02P20/544

Abstract: A method of extracting metalloid and metal species from a solid or liquid material by exposing the material to a supercritical fluid solvent containing a chelating agent. The chelating agent forms chelates that are soluble in the supercritical fluid to allow removal of the species from the material. In preferred embodiments, the extraction solvent is supercritical carbon dioxide and the chelating agent is a fluorinated or lipophilic crown ether or fluorinated dithiocarbamate. The method provides an environmentally benign process for removing contaminants from industrial waste without using acids or biologically harmful solvents. The chelate and supercritical fluid can be regenerated, and the contaminant species recovered, to provide an economic, efficient process.

Abstract translation: 一种通过将该材料暴露于含有螯合剂的超临界流体溶剂中从固体或液体材料中提取准金属和金属物质的方法。 螯合剂形成可溶于超临界流体的螯合物以允许物质从物质中除去。 在优选的实施方案中，提取溶剂是超临界二氧化碳，螯合剂是氟化或亲脂性冠醚或氟化二硫代氨基甲酸盐。 该方法提供了一种环境友好的方法，用于在不使用酸或生物有害溶剂的情况下从工业废物中去除污染物。 可以再生螯合物和超临界流体，回收污染物质，以提供经济，有效的方法。

公开(公告)号：US5340475A

公开(公告)日：1994-08-23

申请号：US988950

申请日：1993-03-10

Applicant: Hernan J. Cortes ,  Robert M. Campbell

Inventor： Hernan J. Cortes ,  Robert M. Campbell

IPC: B01D15/08 ,  B01D11/02 ,  B01D11/04 ,  G01N30/02 ,  G01N30/06 ,  G01N30/08 ,  G01N30/46 ,  G01N30/60

CPC classification number: G01N30/06 ,  B01D11/0203 ,  B01D11/0407 ,  G01N2030/062 ,  G01N2030/6008 ,  G01N30/02 ,  G01N30/08 ,  G01N30/462 ,  G01N30/463

Abstract: An on-line supercritical fluid extraction multidimensional chromatographic system and method is described which provides a cell for extracting a target compound in a supercritical fluid, and a restrictor interface for trapping the extracted target compound while decompressing and venting the supercritical fluid. A pump and valve arrangement is provided to convey the trapped target compound through a micro LC column for separating (and detecting) constituents of interest from interfering species, and ultimately introducing constituent of interest into a gas chromatograph for analysis. The system is characterized as being "on-line" in that fluid communication is provided between all of the system components and the process is continuous. Similarly, the system is characterized as being "multidimensional" in that both liquid and gas chromatographic techniques can be employed in tandem to provide analysis, selectivity and sensitivity in the parts per billion range.

Abstract translation: PCT No.PCT / US91 / 07262 Sec。 371日期1993年3月10日 102（e）1993年3月10日PCT PCT 1991年10月8日PCT公布。 WO92 / 05851 PCT出版物 日期：1992年04月16日。在线超临界流体萃取多维色谱系统和方法被描述为提供用于提取超临界流体中的目标化合物的细胞和用于捕获提取的目标化合物的限制器界面，同时减压和排出 超临界流体 提供泵和阀装置以将被捕获的目标化合物输送通过微LC柱，用于将目的成分与干扰物质分离（和检测），并最终将感兴趣的成分引入气相色谱仪进行分析。 该系统的特征在于“在线”，因为在所有系统组件之间提供流体通信，并且该过程是连续的。 类似地，该系统被表征为“多维”，因为液相和气相色谱技术可以串联使用以提供在十亿分之几的范围内的分析，选择性和灵敏度。

公开(公告)号：US5313965A

公开(公告)日：1994-05-24

申请号：US891138

申请日：1992-06-01

Applicant: Edward J. Palen

Inventor： Edward J. Palen

IPC: B01D11/00 ,  B01D11/02 ,  B08B3/10 ,  B08B3/12 ,  B08B7/00 ,  D06F43/00 ,  B08B3/02

CPC classification number: B01D11/0203 ,  B08B3/12 ,  B08B7/0021 ,  D06F43/007 ,  Y10S134/902

Abstract: A system for continuously processing items using supercritical fluid wherein the main process vessel in which the items are cleaned or extracted is continuously pressurized with supercritical fluid. The continuous pressurization of the main process vessel is achieved by using an entry airlock to initially pressurize the item to be processed prior to transport into the main process vessel. An exit airlock is provided to depressurize the item after cleaning or extraction in the main process vessel. The system also provides for pretreatment of the items in the entry airlock prior to processing in the main vessel. Post-treatment may also be provided in the exit airlock when desired.

Abstract translation: 一种用于使用超临界流体连续处理物品的系统，其中用超临界流体连续加压物品的清洁或提取的主处理容器。 主处理容器的连续加压通过使用入口气闸在运输到主处理容器之前对待处理的物品进行初始加压来实现。 提供出口气闸以在主处理容器中清洁或提取后对物品进行减压。 该系统还提供在主船舶处理之前对入口机车中的物品进行预处理。 如果需要，也可以在出口气锁中提供后处理。

公开(公告)号：US5290959A

公开(公告)日：1994-03-01

申请号：US839906

申请日：1992-02-21

Applicant: Wayne K. Rice

Inventor： Wayne K. Rice

IPC: B01D11/02 ,  C11B1/10 ,  C07C1/00

CPC classification number: B01D11/0203 ,  B30B9/12 ,  C11B1/10 ,  C11B1/104

Abstract: An extraction process comprising contracting a material to be extracted with an extracting fluid at elevated pressure within a defined space, and separating the extracted fluid and extract as a mass, from the extracted material while reducing the volume of the defined space and while maintaining the elevated pressure within the defined space. Apparatus for carrying out the process is adapted to separate the extracting fluid and the extract, as a mass, from the extracted material, while maintaining elevated pressure and reducing the volume as the point of separation.

Abstract translation: 一种提取方法，包括在一定的空间内以提高的压力将提取液提取的材料收缩，并将提取的流体与提取的物质分离，并从提取的材料中提取，同时减少限定空间的体积，同时保持提升 压力在定义的空间内。 用于进行该方法的装置适于将提取液和作为质量的提取物与提取的材料分离，同时保持升高的压力并减小作为分离点的体积。

公开(公告)号：US5290578A

公开(公告)日：1994-03-01

申请号：US856149

申请日：1992-03-30

Applicant: Chand A. Passey ,  Narayan D. Patil

Inventor： Chand A. Passey ,  Narayan D. Patil

IPC: A23L25/00 ,  B01D11/02 ,  C11B1/10 ,  A23L1/36

CPC classification number: C11B1/104 ,  A23L25/20 ,  B01D11/0203 ,  Y02P20/544

Abstract: A process for preparing nuts, particularly peanuts, of reduced calorific value by partially extracting oil from the nut kernels by extraction with supercritical carbon dioxide. The process involves pretreatment of the kernels, including their humidification and optional microwaving. The pretreatment and the extraction steps are optimized with a view to removing maximum amounts of high-calorie substances without losing the organoleptic qualities of the nuts. The process produces virtually unbroken peanut kernels.

Abstract translation: PCT No.PCT / CA90 / 00296 Sec。 371日期：1992年3月30日 102（e）1992年3月30日PCT PCT 1990年9月19日PCT公布。 出版物WO91 / 04678 1991年04月18日。一种通过用超临界二氧化碳提取从坚果籽仁部分提取油而制备具有降低发热量的坚果，特别是花生的方法。 该过程包括对颗粒的预处理，包括其加湿和可选的微波。 预处理和提取步骤是优化的，以便去除最大量的高热量物质，而不损失坚果的感官品质。 该过程产生几乎未破碎的花生仁。

公开(公告)号：US5274129A

公开(公告)日：1993-12-28

申请号：US714265

申请日：1991-06-12

Applicant: Nicholas R. Natale ,  Chien M. Wai ,  Sadik Elshani

Inventor： Nicholas R. Natale ,  Chien M. Wai ,  Sadik Elshani

IPC: B01D11/02 ,  B01D11/04 ,  B08B7/00 ,  B09C1/02 ,  C01F17/00 ,  C22B3/16 ,  C22B3/26 ,  C22B59/00 ,  G21F9/12 ,  C07D323/00

CPC classification number: G21F9/125 ,  B01D11/0203 ,  B01D11/0407 ,  B08B7/0021 ,  B09C1/02 ,  C01F17/0006 ,  C22B3/002 ,  C22B3/1641 ,  C22B59/00 ,  Y02P10/234

Abstract: Novel derivatives of hydroxamic acid chelating agents for the chelation of f-block elements, yttrium and scandium and methods for the extraction of such elements.

Abstract translation: 用于螯合f-嵌段元素，钇和钪的异羟肟酸螯合剂的新型衍生物以及用于提取这些元素的方法。

公开(公告)号：US5255205A

公开(公告)日：1993-10-19

申请号：US487658

申请日：1990-03-02

Applicant: Christopher M. Wurm ,  Lenore R. Frank ,  Lee H. Altmayer

Inventor： Christopher M. Wurm ,  Lenore R. Frank ,  Lee H. Altmayer

IPC: B01D11/00 ,  B01D11/02 ,  G05D7/00 ,  G06F15/20

CPC classification number: B01D11/0203

Abstract: Method and apparatus for regulating the passage of fluid through a chamber or other type of conduit. Fluid passage is terminated when the volume of fluid which has swept through a chamber equals a selected multiple of the chamber's internal volume, which multiple is known as swept chamber volumes.

公开(公告)号：US5225173A

公开(公告)日：1993-07-06

申请号：US782612

申请日：1991-10-25

Applicant: Chien M. Wai

Inventor： Chien M. Wai

IPC: B01D11/02 ,  B01D11/04 ,  B08B7/00 ,  B09C1/02 ,  C01F17/00 ,  C22B3/16 ,  C22B3/26 ,  C22B59/00 ,  G21F9/12

CPC classification number: G21F9/125 ,  B01D11/0203 ,  B01D11/0407 ,  B08B7/0021 ,  B09C1/02 ,  C01F17/0006 ,  C22B3/002 ,  C22B3/1641 ,  C22B59/00 ,  Y02P10/234

Abstract: Methods and devices for the separation of a radioactive rare earth metal isotopes or a radioactive isotope of yttrium or scandium from their alkaline earth metal precursors with ionizable dibenzo ether derivatives.

Abstract translation: 用可离子化的二苯醚衍生物从其碱土金属前体分离放射性稀土金属同位素或钇或钪的放射性同位素的方法和装置。

公开(公告)号：US5213660A

公开(公告)日：1993-05-25

申请号：US647627

申请日：1991-02-28

Applicant: Shafi U. Hossain ,  Carol A. Blaney

Inventor： Shafi U. Hossain ,  Carol A. Blaney

IPC: A62D3/00 ,  D21C5/02

CPC classification number: D21C5/02 ,  B01D11/0203 ,  Y02W30/648

Abstract: A process for removing PCDD's and PCDF's from cellulose-containing fibers such as waste paper is provided. The process comprises contacting the fibers with supercritical or near supercritical carbon dioxide for a period of time sufficient to extract a substantial portion of the PCDD's and PCDF's without substantially damaging the fibers. Extraction efficiencies of greater than 95% have been achieved with the technique.

Abstract translation: 提供了一种从含纤维素纤维如废纸中除去PCDD和PCDF的方法。 该方法包括使纤维与超临界或接近超临界二氧化碳接触一段足以提取大部分PCDD和PCDF的时间，而不会基本上损害纤维。 该技术已经实现了大于95％的提取效率。