Method of obtaining an organic salt or acid from an aqueous sugar stream
    71.
    发明授权
    Method of obtaining an organic salt or acid from an aqueous sugar stream 有权
    从糖水溶液中获得有机盐或酸的方法

    公开(公告)号:US07718070B2

    公开(公告)日:2010-05-18

    申请号:US11774113

    申请日:2007-07-06

    Applicant: Daphne Mahnon

    Inventor: Daphne Mahnon

    Abstract: A process for obtaining one or more than one salt of an organic acid(s), or organic acid(s), from an aqueous sugar stream comprising one or more than one mineral acid and the organic acid(s) is provided. The process comprises introducing the aqueous sugar stream to a separation system comprising one or more beds of anion exchange resin and obtaining a stream therefrom comprising the sugar. The one or more beds of anion exchange resin are then regenerated in one or more stages to produce at least one product stream comprising the organic acid, a salt of the organic acid, or a combination thereof, and a separate outlet stream comprising the mineral acid, a salt of the mineral acid, or a combination thereof. The product stream is then recovered. The separation may be conducted with two separation units, or using a single anion exchange unit.

    Abstract translation: 提供了从包含一种或多种无机酸和有机酸的糖水流中获得有机酸或有机酸的一种或多于一种的方法。 该方法包括将糖水流引入包含一个或多个阴离子交换树脂床的分离系统,并从其中获得包含糖的料流。 然后一个或多个阴离子交换树脂床在一个或多个阶段中再生,以产生至少一种包含有机酸,有机酸的盐或其组合的产物流,以及包含无机酸的单独出口物流 ,无机酸的盐,或其组合。 然后回收产品流。 分离可以用两个分离单元进行,或者使用单个阴离子交换单元。

    METHOD FOR PURIFYING CHEMICAL ADDED WITH CHELATING AGENT
    72.
    发明申请
    METHOD FOR PURIFYING CHEMICAL ADDED WITH CHELATING AGENT 有权
    净化添加化学药剂的方法

    公开(公告)号:US20100078589A1

    公开(公告)日:2010-04-01

    申请号:US12517313

    申请日:2007-11-30

    Abstract: A chelate complex is removed from a chemical which is used in a semiconductor production process and contains a compound having a chelating ability, and the cleaning load is also reduced. Specifically disclosed is a method for purifying a chemical which is used in a semiconductor production process and contains a compound having a chelating ability, wherein a chelate complex which is formed from impurity metals such as nickel and copper contained in an alkaline chemical is removed from the chemical by treating the alkaline chemical with an organic complex adsorbing material.

    Abstract translation: 从用于半导体制造方法的化学物质中除去螯合络合物,并含有具有螯合能力的化合物,清洗负荷也降低。 具体公开了一种纯化用于半导体制造方法中的化学品的方法,其含有具有螯合能力的化合物,其中由碱性化合物中所含的诸如镍和铜的杂质金属形成的螯合络合物从 通过用有机络合物吸附材料处理碱性化学品来进行化学处理。

    Fluorine removal by ion exchange
    73.
    发明授权
    Fluorine removal by ion exchange 失效
    通过离子交换除氟

    公开(公告)号:US07625540B2

    公开(公告)日:2009-12-01

    申请号:US10148756

    申请日:2000-12-01

    Abstract: A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus (200) may include a dual resin setup (222, 223) such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.

    Abstract translation: 从所选择的环境中除去氟气的方法包括使氟气与水接触以产生氢氟酸溶液,并使氢氟酸溶液与具有活性状态的离子交换树脂接触,以在其中交换选定的离子用于氟离子 解决方案。 装置(200)可以包括双重树脂装置(222,223),使得一个离子交换树脂可以处于使用循环中,而另一个离子交换树脂经历再生和冲洗/再填充循环。

    Process for preparing temozolomide
    74.
    发明授权
    Process for preparing temozolomide 失效
    替莫唑胺制备方法

    公开(公告)号:US07612202B2

    公开(公告)日:2009-11-03

    申请号:US11354899

    申请日:2006-02-16

    Abstract: The present invention provides a process for preparing highly pure Temozolomide base which includes recovery from the purification mother liquors by using an anionic exchange resin. By treating Temozolomide hydrochloride with a mixture of an organic acid, a water miscible organic solvent, and water, Temozolomide free base is obtained in an acidic medium. Due to the high sensitivity of Temozolomide to basic pH values the recovery-including process is especially advantageous because it enables obtaining high yields of highly pure Temozolomide base in acidic conditions.The process for producing Temozolomide base includes hydrolysis of the starting material 8-cyano-3-methyl-[3H]-imidazo[5,1-d]-tetrazin-4-one in acidic medium to obtain highly pure Temozolomide hydrochloride in high yield.

    Abstract translation: 本发明提供了制备高纯度替莫唑胺碱的方法,其包括通过使用阴离子交换树脂从纯化母液中回收。 通过用有机酸,水混溶性有机溶剂和水的混合物处理盐酸替莫唑胺,在酸性介质中获得替莫唑胺游离碱。 由于替莫唑胺对碱性pH值的高敏感性,回收包含的方法是特别有利的,因为它能够在酸性条件下获得高产量的高纯度替莫唑胺碱。 制备替莫唑胺碱的方法包括在酸性介质中水解原料8-氰基-3-甲基 - [3 H] - 咪唑并[5,1-d] - 四嗪-4-酮,以高产率得到高纯度的替莫唑胺盐酸盐 。

    Sulphided ion exchange resins
    75.
    发明授权
    Sulphided ion exchange resins 失效
    硫化离子交换树脂

    公开(公告)号:US07591944B2

    公开(公告)日:2009-09-22

    申请号:US10502236

    申请日:2003-01-17

    CPC classification number: B01J41/14 B01J41/07 C10G25/02

    Abstract: A method of making a sulphided ion exchange resin from an ion exchange resin containing primary or secondary amino group comprises passing a non-aqueous liquid, e.g. a hydrocarbon, feedstock containing elemental sulphur or organic, or inorganic, di-or poly-sulphides through a bed of an ion exchange resin containing primary or secondary amino groups, and so unsulphided ion exchange resins containing primary or secondary amine groups may be used to remove such elemental sulphur or sulphur compounds from liquid, e.g. hydrocarbon, feedstocks. The sulphided ion exchange resins may be used to remove elemental mercury or organic mercury compounds from liquid, e.g. hydrocarbon, streams.

    Abstract translation: 从含有伯或仲氨基的离子交换树脂制备硫化离子交换树脂的方法包括使非水性液体例如 通过含有伯或仲氨基的离子交换树脂的床,含有元素硫或有机或无机,二 - 或多硫化物的烃类原料,因此可以使用含有伯胺或仲胺基团的未硫化离子交换树脂 从液体中除去这些元素硫或硫化合物,例如 碳氢化合物,原料。 硫化离子交换树脂可用于从液体中除去元素汞或有机汞化合物,例如, 碳氢化合物,溪流。

    Methods for matrix cleanup and analysis of drugs and metabolites in biological matrices
    78.
    发明申请
    Methods for matrix cleanup and analysis of drugs and metabolites in biological matrices 审中-公开
    生物基质中药物和代谢物的基质清除和分析方法

    公开(公告)号:US20080261312A1

    公开(公告)日:2008-10-23

    申请号:US11511072

    申请日:2007-04-18

    Applicant: Yuhui Yang

    Inventor: Yuhui Yang

    Abstract: The invention is directed to the use of weak anion exchange (WAX) materials for trapping of negative and zwitterionic interferences from biological matrices, and then reduction of the biological matrix effect in the quantitative analysis process of basic and neutral compounds present in the matrix. The sample preparation process includes adding the WAX cleanup step before or after or during the conventional extraction procedures like liquid-liquid extraction, protein precipitation, solid phase extraction and others. Such a step greatly enhances the selectivity of the extraction process via the removal of the majority of the contaminants and reduces the matrix effect in the quantitative analysis. In addition, the WAX-enhanced extraction is very simple, versatile, rug and easy to be operated.

    Abstract translation: 本发明涉及使用弱阴离子交换(WAX)材料捕获来自生物基质的负离子和两性离子干扰,然后在基质中存在的碱性和中性化合物的定量分析过程中降低生物基质效应。 样品制备方法包括在常规提取程序如液 - 液萃取,蛋白沉淀,固相萃取等之前或期间添加WAX清除步骤。 这样的步骤通过去除大多数污染物大大提高了萃取过程的选择性,并降低了定量分析中的基质效应。 此外,WAX增强提取非常简单,多功能,地毯和易于操作。

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