Adiabatic hydrofluorination of hydrochlorofluorocarbons
    101.
    发明公开
    Adiabatic hydrofluorination of hydrochlorofluorocarbons 失效
    Adiabatische Hydrofluorierung von Chlorfluorkohlenwasserstoffen

    公开(公告)号:EP0714873A1

    公开(公告)日:1996-06-05

    申请号:EP95114299.1

    申请日:1995-09-12

    CPC classification number: C07C17/206 B01J27/125 B01J27/128 C07C19/08

    Abstract: Process for adiabatically hydrofluorinating hydrochlorocarbons and hydrochlorofluorocarbons in the gaseous phase in the presence of a catalyst that is active at the initial reaction temperature and remains highly selective at the maximum reaction temperature, e.g., a Cr catalyst. The molar ratio of HF to starting compound is at least about 2.5:1. The initial reaction temperature is selected such that the HF in the feed is partially associated but not completely (HF)₆. The catalyst may be unsupported or supported.

    Abstract translation: 在催化剂存在下,在气相中绝热氢氟化氢氯碳氢化合物和氢氯氟烃的方法,其在初始反应温度下是有活性的,并且在最大反应温度例如Cr催化剂下保持高选择性。 HF与起始化合物的摩尔比为至少约2.5:1。 选择初始反应温度使得进料中的HF部分相关但不完全(HF)6。 催化剂可以是未负载的或支持的。

    Process for the manufacture of high purity linear c4+ alkyl mercaptans
    102.
    发明公开
    Process for the manufacture of high purity linear c4+ alkyl mercaptans 失效
    Verfahren zur Herstellung von sehr reinen C4 + -Alkylmercaptanen

    公开(公告)号:EP0706998A1

    公开(公告)日:1996-04-17

    申请号:EP95110418.1

    申请日:1995-07-04

    CPC classification number: C07C319/06 C07C321/04

    Abstract: Linear C₄+ alkyl mercaptans of high purity are prepared by the reaction of a di-linear(C₄+) alkyl sulfide with hydrogen sulfide at elevated temperature in the presence of an alumina material selected from gamma/eta alumina or gamma/eta alumina impregnated with up to 20% w/w of titania or rhenium oxide.

    Abstract translation: 直链烷基二硫化物通过与H 2 S反应的催化剂转化成相应的硫醇,所述催化剂包含任选地浸渍有至多20重量%的二氧化钛和/或氧化铼的eta /γ氧化铝。

    A process for the preparation of alkane sulfonic acid and alkane sulfonyl chloride
    103.
    发明公开
    A process for the preparation of alkane sulfonic acid and alkane sulfonyl chloride 无效
    Verfahren zur Herstellung vonAlkansulfonsäurenund Alkansulfonylchloriden。

    公开(公告)号:EP0675106A1

    公开(公告)日:1995-10-04

    申请号:EP95104522.8

    申请日:1995-03-28

    CPC classification number: C07C303/16 C07C309/04 C07C309/80

    Abstract: A process is disclosed for the efficient production of high purity alkane sulfonic acid and/or alkane sulfonyl chloride product wherein a compound of the formula RSX, where X is hydrogen or -SR¹ and R and R¹ are alkyl radicals is continuously reacted with chlorine in aqueous hydrochloric acid to produce a turbulent evolution of hydrochloride gas, passing the reactants through stationary mixing elements to promote plug-flow, and separately withdrawing a product. Apparatus for this process is also disclosed.

    Abstract translation: 公开了用于有效生产高纯度烷烃磺酸和/或烷烃磺酰氯产物的方法,其中式为RSX的化合物,其中X为氢或-SR 1且R和R 1为烷基, 在盐酸水溶液中与氯气连续反应,产生湍流的盐酸气体,使反应物通过固定的混合元件,促进活塞流,并单独取出产品。 还公开了该方法的装置。

    N-[2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl]oxamides as light stabilisers
    107.
    发明公开
    N-[2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl]oxamides as light stabilisers 失效
    N-2-羟基-3-(2H-苯并三唑基-2)苄基 - 氧化胺,Lichtstabilisatoren。

    公开(公告)号:EP0593936A1

    公开(公告)日:1994-04-27

    申请号:EP93115443.9

    申请日:1993-09-24

    CPC classification number: C07D249/20 C08K5/3475

    Abstract: This invention relates to novel UV absorbers, their methods of preparation, their use in stabilizing polymers and polymers so stabilized against the degradative effects of UV light. The novel compounds of formula I are oxamides which are substituted on one or both nitrogens with
    a 2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl group. The 2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl groups are efficient UV absorbing groups and the oxamide group contributes additional light stabilizing, heat stabilizing and metal complexing properties to the compounds. The compounds have low-volatility and are especially useful as UV stabilizers for engineering resins processed at high temperatures.

    Abstract translation: 本发明涉及新的UV吸收剂,它们的制备方法,它们在稳定聚合物和聚合物中的用途,以抵抗UV光的降解作用。 式I的新化合物是在一个或两个氮与2-羟基-3-(2H-苯并三唑-2-基)苄基上取代的酰胺。 2-羟基-3-(2H-苯并三唑-2-基)苄基是有效的UV吸收基团,并且草酰胺基团赋予化合物额外的光稳定性,热稳定性和金属络合性质。 该化合物具有低挥发性,并且特别适用于在高温下加工的工程树脂的UV稳定剂。

    COATED GLASS ARTICLE
    109.
    发明公开
    COATED GLASS ARTICLE 失效
    镀膜玻璃制品。

    公开(公告)号:EP0573640A1

    公开(公告)日:1993-12-15

    申请号:EP93901246.0

    申请日:1992-12-21

    Abstract: On prépare un article de verre enrobé en faisant appel à la technique de dépôt en phase gazeuse par procédé chimique, d'un mélange d'un précurseur de l'oxyde d'étain, d'un précurseur du dioxyde de silicium et d'un agent d'accélération tel que le phosphite de triéthyle, à des vitesses de dépôt supérieures à 350Å/sec. sur du verre ayant une température comprise entre 450 et 650 °C. On peut associer la couche de matériau déposée à d'autres couches, de façon à obtenir un article possédant des propriétés spécifiques relatives à l'émittance contrôlée, l'indice de réfraction, la résistance à l'abrasion ou l'aspect.

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