Color of maleic anhydride
    1.
    发明授权
    Color of maleic anhydride 失效
    马来酸酐的颜色

    公开(公告)号:US4159275A

    公开(公告)日:1979-06-26

    申请号:US925088

    申请日:1978-07-17

    Inventor: William R. Davie

    CPC classification number: C07C51/47 C07C51/50

    Abstract: Discoloration of maleic anhydride is minimized by first passing the maleic anhydride in molten or dissolved form through a bed of cation exchange resin and then adding to the maleic anhydride a small amount of 3,3'-thiodipropionitrile.

    Abstract translation: 首先使马来酸酐熔融或溶解形式通过阳离子交换树脂床,然后向少量的3,3'-硫代二丙腈加入马来酸酐,使马来酸酐的变色最小化。

    Purified para-cumylphenol
    2.
    发明授权
    Purified para-cumylphenol 失效
    纯化的对枯基苯酚

    公开(公告)号:US5091058A

    公开(公告)日:1992-02-25

    申请号:US645775

    申请日:1991-01-25

    Inventor: William R. Davie

    CPC classification number: C07C37/14 B01D3/009 C07C37/74 Y02P20/127 Y10S203/06

    Abstract: Method of preparing para-cumylphenol including reacting an excess of phenol with alpha-methylstyrene by the slow addition of alpha-methylstyrene to a 50% to 200% molar excess of phenol at a temperature from about 80.degree. C. to about 90.degree. C. in the presence of an acid catalyst and thereafter maintaining the temperature at about 95.degree. to about 100.degree. C. to obtain a crude cumylphenol reaction product containing acid derived from the catalyst, and distilling the reaction product in the presence of an amount of base sufficient to neutralize the acid therein.

    Abstract translation: 制备对枯基苯酚的方法包括使过量的苯酚与α-甲基苯乙烯通过在约80℃至约90℃的温度下缓慢加入α-甲基苯乙烯至50%至200%摩尔过量的苯酚。 在酸催化剂的存在下,然后将温度保持在约95℃至约100℃,得到含有源自该催化剂的酸的粗制异丙苯酚反应产物,并在足量的碱存在下蒸馏反应产物 以中和其中的酸。

    Removal of iron compounds from organic process streams
    3.
    发明授权
    Removal of iron compounds from organic process streams 失效
    从有机工艺流中除去铁化合物

    公开(公告)号:US4370240A

    公开(公告)日:1983-01-25

    申请号:US272141

    申请日:1981-06-10

    CPC classification number: C07C37/82 B01J45/00 C01G49/0009

    Abstract: Weakly basic ion exchange resins are used to remove iron compounds in anhydrous or substantially anhydrous organic systems such as phenolic process streams. The resins may be either in the form of a weak salt such as the amine hydrochloride or may be a protonated amine carboxylic acid in the acidic form. In either case, we have determined that the active site does not perform in a conventional ion exchange manner but rather forms a complex with the entire iron compound molecule. While the complex is formed in a waterless or almost waterless system, it may be regenerated in an aqueous system.

    Abstract translation: 弱碱性离子交换树脂用于除去无机或基本上无水的有机体系如酚类工艺流中的铁化合物。 树脂可以是弱盐的形式,例如胺盐酸盐,或者可以是酸性形式的质子化胺羧酸。 在任一情况下,我们已经确定活性位点不能以常规的离子交换方式进行,而是与整个铁化合物分子形成复合物。 当复合物在无水或几乎无水系统中形成时,其可以在水系统中再生。

    Method of preparing antifoulant coating compositions and resulting
product
    4.
    发明授权
    Method of preparing antifoulant coating compositions and resulting product 失效
    制备防污涂料组合物和所得产物的方法

    公开(公告)号:US3997461A

    公开(公告)日:1976-12-14

    申请号:US230137

    申请日:1972-02-28

    Inventor: William R. Davie

    Abstract: An antifoulant coating composition and preparation method in which the final composition is composed of two Components A and B mixed immediately before the composition is applied, and usually an inert filler introduced at least in part via Component A. The active ingredient of Component A is a base formed of coal-tar pitch or equivalent and epoxy resin. The active ingredients of Component B are a curing agent for the epoxy resin and a solid organotin toxicant. Component B may be either a slurry of needle-like crystals of toxicant, or the toxicant may be dissolved in a suitable solvent. In the latter case the toxicant precipitates as needle-like crystals when Components A and B are mixed. The invention produces a composition of a viscosity which makes it easy to apply.

    Abstract translation: 一种防污涂料组合物及其制备方法,其中最终组合物由施用组合物之前混合的两种组分A和B组成,通常为至少部分通过组分A引入的惰性填料。组分A的活性成分为 由煤焦油沥青或等效物形成的碱和环氧树脂。 组分B的活性成分是环氧树脂和固体有机锡毒物的固化剂。 组分B可以是有毒物的针状晶体的浆液,或者毒物可以溶解在合适的溶剂中。 在后一种情况下,当组分A和B混合时,毒物作为针状晶体沉淀。 本发明产生粘度的组合物,其易于施用。

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