Preparation of alkylphenols
    7.
    发明授权
    Preparation of alkylphenols 失效
    烷基酚的制备

    公开(公告)号:US5817891A

    公开(公告)日:1998-10-06

    申请号:US715830

    申请日:1996-09-19

    IPC分类号: C07C37/07

    CPC分类号: C07C37/07

    摘要: A process for the preparation of alkylphenols of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 stand for hydrogen or C.sub.1 -C.sub.8 alkyl, by reaction of an alkylcyclohex-2-en-1-one of the formula II ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 have the aforementioned meanings, at temperatures of from 200.degree. to 400.degree. C. and pressures ranging from 0.01 to 50 bar in the presence of palladium-on-.alpha.-Al.sub.2 O.sub.3 catalysts, wherein the catalyst used has a specific surface area (BET) of from 1 to 10 m.sup.2 /g, a pore diameter of from 5 nm to 300 .mu.m and a pore volume of from 0.1 to 0.5 cm.sup.3 /g, from 80 to 100% of the pores having a diameter of from 40 to 400 nm, and also novel palladium-on-.alpha.-Al.sub.2 O.sub.3 catalysts as obtained from a fine-grained alumina powder by steps of molding, pyrolysis and calcination.

    摘要翻译: 通过烷基环己-2-烯-1-酮的反应制备式I的烷基酚的方法,其中R 1,R 2,R 3,R 4和R 5代表氢或C 1 -C 8烷基, 其中R 1,R 2,R 3,R 4和R 5具有上述含义的式II(II)中的一种,在200-400℃的温度和0.01至50巴的压力下, 的钯 - α-Al 2 O 3催化剂,其中使用的催化剂具有1至10m 2 / g的比表面积(BET)为1至10m 2 / g,孔径为5nm至300μm,孔体积为0.1至 0.5cm 3 / g,直径为40〜400nm的孔的80〜100%,以及由细晶粒状氧化铝粉末得到的新型钯 - α-Al 2 O 3催化剂,其通过成型,热解和 煅烧。

    Bis-epoxy-dialkoxy-alkanes
    9.
    发明授权
    Bis-epoxy-dialkoxy-alkanes 失效
    双环氧 - 二烷氧基烷烃

    公开(公告)号:US4250101A

    公开(公告)日:1981-02-10

    申请号:US54863

    申请日:1979-07-05

    摘要: Bis-epoxy-dialkoxy-alkanes are valuable intermediates for the preparation of the sought-after aromatic 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one. The novel bis-epoxy-dialkoxy-alkanes are obtained by reacting the corresponding .alpha.,.alpha.'-dihalo-1,2-diketones with an alkali metal hydroxide or an alkali metal alkoxide and an alkanol at from -20.degree. to +100.degree. C. To prepare the 2,5-dialkyl-4-hydroxy-2,3-dihydro-furan-3-ones, which are valuable aromatics, the novel bis-epoxy-dialkoxy-alkanes are heated with strong mineral acids or strong organic acids at from 60.degree. to 120.degree. C.

    摘要翻译: 双环氧 - 二烷氧基烷烃是制备所需的芳族2,5-二甲基-4-羟基-2,3-二氢呋喃-3-酮的有价值的中间体。 通过使相应的α,α'-二卤代-1,2-二酮与碱金属氢氧化物或碱金属醇盐和在-20℃至+ 100℃的链烷醇反应获得新的双环氧 - 二烷氧基烷烃 为了制备作为有价值芳烃的2,5-二烷基-4-羟基-2,3-二氢呋喃-3-酮,新型双环氧 - 二烷氧基烷烃用强无机酸或强有机酸加热 在60〜120℃

    Container, closable by a lid, for receiving and compressing waste
    10.
    发明授权
    Container, closable by a lid, for receiving and compressing waste 失效
    集装箱,用盖子封闭,用于接收和压缩废物

    公开(公告)号:US4164178A

    公开(公告)日:1979-08-14

    申请号:US897452

    申请日:1978-04-18

    CPC分类号: B65F1/1405 B65F1/163

    摘要: The invention provides a container for waste materia, particularly but not exclusively for paper waste, comprising, a casing forming a container for waste material having structure defining an opening for entry to the container, a lid movably mounted on the casing adjacent the opening for movement between an open position allowing waste to be put into the container opening, and a closed position closing the opening of the container, the lid being formed so that in its closed position it extends into the container beyond the extremity of said container structure to occupy a volume within the container at least equal to that of an item of waste for which the container is intended, and means for releasably retaining the lid in its closed position, whereby each time waste is inserted through the opening and the lid closed, the waste in the container is progressively compressed and a space is created for the reception of further waste when the lid is next opened.

    摘要翻译: 本发明提供了一种用于废料的容器,特别是但不仅限于废纸,包括:形成用于废料的容器的壳体,其具有限定用于进入容器的开口的结构;可移动地安装在壳体上的盖子,邻近开口移动 在允许废物被放入容器开口的打开位置和关闭容器的开口的关闭位置之间,所述盖形成为使得在其关闭位置中,所述盖延伸到容器结构的末端以超过所述容器结构的末端以占据 容器内的体积至少等于容器所预期的废物项目的容积,以及用于将盖子可释放地保持在其关闭位置的装置,由此每次通过开口插入废物并且盖子关闭时,废物在 容器逐渐压缩,并且当下一次打开盖子时,产生用于接收更多废物的空间。