NYLON EXTRACTION FROM COMMINGLED MATERIALS
    1.
    发明申请
    NYLON EXTRACTION FROM COMMINGLED MATERIALS 审中-公开
    尼龙从商品材料中提取

    公开(公告)号:WO2010101579A1

    公开(公告)日:2010-09-10

    申请号:PCT/US2009/040776

    申请日:2009-04-16

    CPC classification number: C08J11/08 C08J2377/04 Y02W30/701

    Abstract: The present invention provides energetically and economically efficient methods for separating polyamide polymer(s) from commingled materials. The methods generally involve precipitating a polyamide polymer dissolved in a solvent (e.g., formic acid) using dimethyl ether (DME) as an antisolvent. The methods comprise dissolving the polyamide polymer in a solvent that (i) selectively dissolves the polyamide polymer relative to the other materials and (ii) has a higher solubility for DME relative to the polyamide polymer; and then contacting the mixture of the solvent with the dissolved polyamide polymer with DME, thereby precipitating the polyamide polymer.

    Abstract translation: 本发明提供了用于将聚酰胺聚合物与混合材料分离的能量和经济有效的方法。 所述方法通常涉及使用二甲醚(DME)作为反溶剂使溶解在溶剂(例如甲酸)中的聚酰胺聚合物沉淀。 所述方法包括将聚酰胺聚合物溶解在溶剂中,(i)相对于其它材料选择性地溶解聚酰胺聚合物,和(ii)相对于聚酰胺聚合物具有较高的DME溶解度; 然后将溶剂与溶解的聚酰胺聚合物的混合物与DME接触,从而沉淀聚酰胺聚合物。

    IMPROVED SOLVENT EXTRACTION AND RECOVERY
    2.
    发明申请
    IMPROVED SOLVENT EXTRACTION AND RECOVERY 审中-公开
    改进溶剂萃取和回收

    公开(公告)号:WO2009086082A1

    公开(公告)日:2009-07-09

    申请号:PCT/US2008/087649

    申请日:2008-12-19

    Abstract: Systems and methods for improving dense gas solvent extraction of a solute and recovery of the solvent are provided. A pressure of the solvent/solute mixture obtained from an extraction chamber is increased, e.g. With a pump, thereby providing the mixture above saturation conditions. The increased pressure provides greater solubility of the solute and less solvent being vaporized in a heat exchanger. A buildup of solute in the system is reduced, thus improving system longevity. Also, process conditions of the separation process are isolated from those of the extraction process. Accordingly, the process conditions for the separating process are maintained while the process conditions of the extraction chamber vary with ambient temperature, thus saving cost and energy. This isolation also provides an ability to use, in the gas recovery cycle, a heat pump that can be used for many applications and environmental conditions while still using a conventional refrigerant.

    Abstract translation: 提供了改进稠溶气萃取溶质和回收溶剂的系统和方法。 从提取室获得的溶剂/溶质混合物的压力增加,例如, 使用泵,从而将混合物提供在饱和条件以上。 增加的压力提供更高的溶质溶解度和更少的溶剂在热交换器中蒸发。 系统中溶质的积累减少,从而提高系统寿命。 此外,分离过程的工艺条件与提取过程的工艺条件分离。 因此,当提取室的工艺条件随环境温度变化时,保持分离过程的工艺条件,从而节省成本和能量。 这种隔离还提供了在气体回收循环中使用可以在仍然使用常规制冷剂的情况下用于许多应用和环境条件的热泵的能力。

    THERMAL DETECTOR FOR CHEMICAL OR BIOLOGICAL AGENTS
    6.
    发明申请
    THERMAL DETECTOR FOR CHEMICAL OR BIOLOGICAL AGENTS 审中-公开
    化学或生物试剂的热探测器

    公开(公告)号:WO2007143541A2

    公开(公告)日:2007-12-13

    申请号:PCT/US2007070208

    申请日:2007-06-01

    CPC classification number: G01N25/482 G01N25/4873

    Abstract: A detector has a thermoelectric sensor and a reactive layer. The thermoelectric sensor is configured to sense heat and to provide an electrical signal based on the sensed heat. The reactive layer is coupled to the thermoelectric sensor and is reactive with an airborne chemical or airborne biological agent of interest. The reaction is exothermic or endothermic. When the airborne agent of interest reacts with the coating, the reaction is detected by the thermoelectric sensor. The electrical signal provides an indication based on the reaction.

    Abstract translation: 检测器具有热电传感器和反应层。 热电传感器被配置为感测热量并且基于感测的热量提供电信号。 反应层耦合到热电传感器,并与感兴趣的空气传播的化学或机载生物试剂反应。 反应是放热或吸热。 当感兴趣的空气传播剂与涂层反应时,反应由热电传感器检测。 电信号基于反应提供指示。

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