Process and apparatus for the semicontinuous extraction of nicotine from
tobacco
    1.
    发明授权
    Process and apparatus for the semicontinuous extraction of nicotine from tobacco 失效
    从烟草中连续提取尼古丁的方法和设备

    公开(公告)号:US5497792A

    公开(公告)日:1996-03-12

    申请号:US122760

    申请日:1987-11-19

    IPC分类号: A24B15/24 A24B15/26 B01D11/02

    CPC分类号: A24B15/26 B01D11/0203

    摘要: A process is provided for the improved removal of nicotine from tobacco. An essentially nicotine-free solvent in the supercritical or liquid state is fed into a first end of an extraction flow system containing tobacco and a nicotine-rich solvent is discharged from a second end of the extraction flow system. Periodically a portion of extracted tobacco is discharged from the first end of the extraction system while simultaneously a portion of an unextracted tobacco is charged to the second end of the extraction system. Nicotine is then entrapped in an entrapment material or otherwise removed from the solvent and solvent is recycled through the extraction flow system. Various materials are provided as entrapment materials. Among the entrapment materials provided are aqueous solutions containing absorbent selected from various acids and salts. Among the acids and salts provided as entrapment materials are sulfuric acid, phosphoric acid, nitric acid, tartaric acid, citric acid, malic acid, lactic acid, malonic acid, succinic acid, acetic acid, glutamic acid and monopotassium citrate.

    摘要翻译: 提供了一种改进从烟草中除去尼古丁的方法。 将基本上不含尼古丁的超临界或液态溶剂进料到含有烟草的萃取流动系统的第一端中,并且富含尼古丁的溶剂从萃取流系统的第二端排出。 从提取系统的第一端周期性地抽出一部分提取的烟草,同时将一部分未提取的烟草充入提取系统的第二端。 然后将尼古丁包埋在夹带材料中或以其它方式从溶剂中除去,溶剂通过提取流系统再循环。 提供各种材料作为夹带材料。 所提供的包埋材料是含有选自各种酸和盐的吸收剂的水溶液。 作为包埋材料提供的酸和盐是硫酸,磷酸,硝酸,酒石酸,柠檬酸,苹果酸,乳酸,丙二酸,琥珀酸,乙酸,谷氨酸和柠檬酸一钾。

    Process for removal of basic materials
    2.
    发明授权
    Process for removal of basic materials 失效
    去除基本材料的工艺

    公开(公告)号:US5018540A

    公开(公告)日:1991-05-28

    申请号:US122761

    申请日:1987-11-19

    IPC分类号: A24B15/24 C11B9/02

    CPC分类号: A24B15/24 C11B9/02

    摘要: A process is provided for the selective removal of basic materials from plant products, in particular, for removing nicotine from tobacco without materially affecting the content of the other components of the tobacco. Tobacco is traversed with a solvent at high pressure and in a physical state which is either a liquid at a pressure of from about 500-300 atmospheres or a supercritical fluid wherein nicotine and the other components dissolve in the solvent. As the single means of removing substances from the solvent, the solvent is then passed through an acid-containing trap where the solvent is essentially freed of nicotine. The solvent, depleted of nicotine and enriched in the other components, is then recycled to the tobacco to reextract nicotine. In addition, the tobacco may be pretreated with a chemical base which does not substantially react with the tobacco components under ambient conditions and which are not necessarily affected by the process conditions but are nonetheless effective in increasing the amount of nicotine which can be extracted by the process of this invention. Pretreatment of the tobacco with a chemical base neutralizes nicotine salts and permits the extraction process to be carried out under milder conditions.

    摘要翻译: 提供了一种用于从植物产品中选择性地除去碱性物质的方法,特别是用于从烟草中除去尼古丁,而不会对烟草的其它成分的含量产生重大影响。 在高压和物理状态下,烟草是以约500-300大气压的液体或其中尼古丁和其他组分溶解在溶剂中的超临界流体的方式穿过的。 作为从溶剂中除去物质的单一方法,然后将溶剂通过含酸捕集器,其中溶剂基​​本上不含尼古丁。 然后将耗尽尼古丁和富集其他组分的溶剂再循环到烟草中以重新提炼尼古丁。 此外,烟草可以用在环境条件下基本上不与烟草成分反应的化学基料进行预处理,而这些碱不一定受工艺条件的影响,但是对于增加尼古丁可以提取的尼古丁的量是有效的 本发明的方法。 用化学碱处理烟草中和尼古丁盐,并允许在更温和的条件下进行提取过程。

    AUTO SELECTION OF CONNECTORS IN A MIDDLEWARE FRAMEWORK
    5.
    发明申请
    AUTO SELECTION OF CONNECTORS IN A MIDDLEWARE FRAMEWORK 审中-公开
    在中间件框架中自动选择连接器

    公开(公告)号:US20080162644A1

    公开(公告)日:2008-07-03

    申请号:US11617791

    申请日:2006-12-29

    IPC分类号: G06F15/16

    摘要: The invention describes a method for auto selection of connectors in a middleware. The method includes receiving a message at a middleware, dynamically identifying if a connector for a target system is capable of handling the message and transmitting the message to a capable connector.

    摘要翻译: 本发明描述了一种用于在中间件中自动选择连接器的方法。 该方法包括在中间件处接收消息,动态地识别用于目标系统的连接器是否能够处理消息并将消息发送到能力连接器。

    Screen
    7.
    发明申请
    Screen 审中-公开
    屏幕

    公开(公告)号:US20060061860A1

    公开(公告)日:2006-03-23

    申请号:US10945661

    申请日:2004-09-21

    IPC分类号: G03B21/56

    摘要: A screen has an active material, having at least one optical property responsive to an electric field, disposed between electrodes, and a controller coupled to at least one of the electrodes for controlling the electric field in response to a signal received by the controller.

    摘要翻译: 屏幕具有活性材料,其具有响应于电场的响应于电场的至少一种光学特性,设置在电极之间,以及耦合到至少一个电极的控制器,用于响应于由控制器接收的信号来控制电场。