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    Method for preparation of copolyorganosiloxanecarbonates of high clarity
    2.
    发明授权
    Method for preparation of copolyorganosiloxanecarbonates of high clarity 有权
    制备高透明度的共聚有机硅氧烷的方法

    公开(公告)号：US06870013B2

    公开(公告)日：2005-03-22

    申请号：US10638622

    申请日：2003-08-08

    申请人： James Manio Silva ,  David Michel Dardaris ,  Gary Charles Davis

    发明人： James Manio Silva ,  David Michel Dardaris ,  Gary Charles Davis

    IPC分类号： C08G64/18 ,  C08G64/24 ,  C08G77/448 ,  C08G77/04

    CPC分类号： C08G77/448 ,  C08G64/186 ,  C08G64/24 ,  C08G77/24 ,  C08G77/80

    摘要： Copolyorganosiloxanecarbonates are prepared by first preparing an oligomeric aromatic polycarbonate, such as an oligomeric bisphenol A polycarbonate, in the presence of a tertiary amine as the only catalyst species; contacting the oligomeric polycarbonate mixture with a polyorganosiloxane bis(aryl)chloroformate, such as the bischloroformate of hydroxy-terminated eugenol polydimethylsiloxane; and introducing phosgene and/or chain termination agent either continuously or in stages. A feature of the process is the presence of dihydroxyaromatic compound in only one charge, at the beginning. The products have excellent physical properties, including transparency.

    摘要翻译： 通过在叔胺作为唯一的催化剂种存在下首先制备低聚芳族聚碳酸酯如低聚双酚A聚碳酸酯来制备共聚有机硅氧烷， 使低聚聚碳酸酯混合物与聚有机硅氧烷二（芳基）氯甲酸酯接触，例如羟基封端的丁子香酚聚二甲基硅氧烷的双氯甲酸酯; 并连续或分阶段引入光气和/或链终止剂。 该方法的特征是在开始时仅在一次充电中存在二羟基芳族化合物。 该产品具有优异的物理性能，包括透明度。

    Siloxane bischloroformates
    3.
    发明授权
    Siloxane bischloroformates 有权

    公开(公告)号：US06723864B2

    公开(公告)日：2004-04-20

    申请号：US10223030

    申请日：2002-08-16

    申请人： James Manio Silva ,  David Michel Dardaris ,  Gary Charles Davis

    发明人： James Manio Silva ,  David Michel Dardaris ,  Gary Charles Davis

    IPC分类号： G07F718

    CPC分类号： C08G77/06 ,  C08G77/24

    摘要： Siloxane bischloroformates are prepared in a continuous process by phosgenating siloxane bisphenols in a flow reactor using a substantial excess of phosgene and sodium hydroxide. While very high levels (>95%) of conversion of the siloxane bisphenol to the corresponding siloxane bischloroformate are achieved using a flow reactor according to the method of the invention, only more modest conversion (˜90%) of the siloxane bisphenol to the corresponding siloxane bischloroformate is attained when analogous batch processes are employed. The process holds promise for use in the manufacture of silicone-containing copolycarbonates which requires high purity siloxane bischloroformate intermediates.

    Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents
    4.
    发明授权
    Method and apparatus for preparing monofunctional aromatic chloroformates suitable for use as chainstopping agents 有权
    制备适用于止痛剂的单官能芳族氯甲酸酯的方法和装置

    公开(公告)号：US06392079B1

    公开(公告)日：2002-05-21

    申请号：US09281498

    申请日：1999-03-30

    申请人： James Manio Silva ,  David Michel Dardaris ,  Peter David Phelps

    发明人： James Manio Silva ,  David Michel Dardaris ,  Peter David Phelps

    IPC分类号： C07C6996

    CPC分类号： C07C68/02 ,  C07C69/96

    摘要： A continuous process for the preparation of monofunctional aromatic chloroformates (MAC) having the structure (I) wherein n is an integer from 1 to 5, and R1 represents hydrogen, a branched or unbranched alkyl group having from 1-15 carbon atoms, an aryl group which may be substituted or unsubstituted, a cycloaliphatic group which may be substituted or unsubstituted, or an arylalkyl group which may be substituted or unsubstituted, the method comprising the steps of a) introducing 1) an aqueous caustic solution; 2) a carbonyl chloride; 3) at least one monofunctional hydroxyaromatic compound; and 4) at least one inert organic solvent into a continuous reaction system; and b) effecting contact between 1), 2), 3) and 4) for a time and at conditions sufficient to produce a MAC of structure (I).

    摘要翻译： 制备具有结构（I）的单官能芳族氯甲酸酯（MAC）的连续方法，其中n为1至5的整数，并且R 1表示氢，具有1-15个碳原子的支链或非支链烷基，芳基 可以被取代或未取代的基团，可被取代或未取代的脂环族基团或可被取代或未取代的芳基烷基，所述方法包括以下步骤：a）引入1）苛性碱水溶液; 2）碳酰氯; 3 ）至少一种单官能羟基芳族化合物; 和4）至少一种惰性有机溶剂进入连续反应体系; 和b）在足以产生结构（I）的MAC的条件下，在1），2），3）和4）之间进行接触。

    Process for removal of quaternary ammonium salt
    5.
    发明授权
    Process for removal of quaternary ammonium salt 失效
    去除季铵盐的方法

    公开(公告)号：US06214235B1

    公开(公告)日：2001-04-10

    申请号：US09055461

    申请日：1998-04-06

    申请人： James Manio Silva

    发明人： James Manio Silva

    IPC分类号： B01D1500

    CPC分类号： B01D15/00 ,  C01D3/16 ,  C07C209/86 ,  C07C211/63

    摘要： The present invention relates to a process to remove quaternary ammonium salt (QS), from brine solution. The process uses an adsorbent selected from the group consisting of activated carbon and pyrolyzed sulfonated polystyrene divinylbenzene resin, or mixtures thereof which aids in removing the quaternary ammonium salt (QS). The process can be generally carried out at a temperature ranging from about −10° C. to about 90° C., at a pH ranging from about 1 to about 13.

    摘要翻译： 本发明涉及从盐水溶液中除去季铵盐（QS）的方法。 该方法使用选自活性炭和热解磺化聚苯乙烯二乙烯基苯树脂的吸附剂，或其混合物，其有助于除去季铵盐（QS）。 该方法通常可以在约-10℃至约90℃，约1至约13的pH范围内进行。

    Method for reducing metal ion concentration in brine solution
    6.
    发明授权
    Method for reducing metal ion concentration in brine solution 有权
    降低盐水溶液中金属离子浓度的方法

    公开(公告)号：US6103092A

    公开(公告)日：2000-08-15

    申请号：US177588

    申请日：1998-10-23

    申请人： James Manio Silva

    发明人： James Manio Silva

    IPC分类号： B01D19/00 ,  C01D3/14 ,  C02F1/20 ,  C02F1/28 ,  C02F1/42 ,  C02F1/58 ,  C02F1/62 ,  C02F1/64 ,  C02F9/00 ,  C25B15/08 ,  C25B1/34

    CPC分类号： C01D3/145 ,  C01D3/14

    摘要： The method reduces the concentration of multivalent metal cations such as calcium, magnesium, iron, nickel, and chromium in brine solution containing a water-soluble metal chelating agent such as sodium gluconate. The method comprises subjecting the brine to primary brine treatment, and then readjusting the brine solution to a pH ranging from about 1.5 to about 5.5, and contacting the brine solution with at least one resin bed comprising a chelating ion exchange resin, typically at a temperature ranging from about 10.degree. C. to about 90.degree. C. and at a flow rate ranging from about 4 to about 32 resin bed volumes per hour; and recovering the brine solution.

    摘要翻译： 该方法在含有水溶性金属螯合剂如葡萄糖酸钠的盐水溶液中降低多价金属阳离子如钙，镁，铁，镍和铬的浓度。 该方法包括对盐水进行一级盐水处理，然后将盐水溶液重新调节至约1.5至约5.5的pH，并将盐水溶液与至少一种包含螯合离子交换树脂的树脂床接触，通常在温度 范围为约10℃至约90℃，流速为约4至约32树脂床体积/小时; 并回收盐水溶液。

    Methods and systems for purifying aqueous liquids
    8.
    发明授权
    Methods and systems for purifying aqueous liquids 有权
    净化含水液体的方法和系统

    公开(公告)号：US08333887B2

    公开(公告)日：2012-12-18

    申请号：US12256918

    申请日：2008-10-23

    申请人： James Manio Silva

    发明人： James Manio Silva

    IPC分类号： C02F1/46

    CPC分类号： C02F1/4691 ,  C02F2103/08

    摘要： Methods and systems are provided for the efficient purification of aqueous liquids comprising an ionic solute. The liquids are purified by a plurality supercapacitor desalination units working in tandem; a first unit operating in “charge” mode, deionizing the feed solution and producing a purified product liquid, while a second supercapacitor desalination unit is operated in “discharge” mode, releasing ions into a circulating stream and producing a concentrate. The output of the first desalination unit is removed as a purified product stream. The output of the second desalination unit is a concentrate, which is directed to a common precipitation unit where a portion of the ionic solute is precipitated and separated from the remaining liquid phase, which may be recirculated to the second desalination unit. The use of two supercapacitor desalination units operating out of phase allows the common precipitation unit to be operated continuously under steady state conditions.

    摘要翻译： 提供了用于有效净化包含离子溶质的含水液体的方法和系统。 液体由串联工作的多个超级电容器脱盐单元净化; 在充电模式下操作的第一单元，使进料溶液去离子并产生纯化的产物液体，而第二超级电容器脱盐单元以放电模式操作，将离子释放到循环流中并产生浓缩物。 第一脱盐单元的输出作为纯化产物流除去。 第二脱盐单元的输出是浓缩物，其指向一个共同的沉淀单元，其中一部分离子溶质沉淀并与剩余的液相分离，剩余的液相可以再循环到第二脱盐单元。 使用两相以外的超级电容器脱盐装置可以使常见的降水装置在稳态条件下连续工作。