Treatment of ilmenite
    3.
    发明授权
    Treatment of ilmenite 失效
    钛铁矿的处理

    公开(公告)号:US3922164A

    公开(公告)日:1975-11-25

    申请号:US43623874

    申请日:1974-01-24

    CPC classification number: C22B34/1213

    Abstract: An ilmenite up-grading process characterised by the step of leaching the ilmenite with a hydrochloric acid solution containing at least 10% by weight of HCl and at least 5% by weight of one or more soluble chlorides. Particularly suitable soluble chlorides include ferrous chloride, manganese chloride, magnesium chloride, nickel chloride, calcium chloride and ammonium chloride.

    Abstract translation: 一种钛铁矿升级方法,其特征在于用含有至少10重量%的HCl和至少5重量%的一种或多种可溶性氯化物的盐酸溶液浸提钛铁矿的步骤。 特别合适的可溶性氯化物包括氯化亚铁,氯化锰,氯化镁,氯化镍,氯化钙和氯化铵。

    Process for the preparation of cis-8-dodecen-1-ol acetate
    4.
    发明授权
    Process for the preparation of cis-8-dodecen-1-ol acetate 失效
    顺式-8-十二碳烯-1-醇乙酸酯的制备方法

    公开(公告)号:US3906035A

    公开(公告)日:1975-09-16

    申请号:US43769474

    申请日:1974-01-29

    Inventor: HOLAN GEORGE

    Abstract: An improved process for the manufacture of cis-8-dodecen-1-ol acetate, the sex pheromone of the oriental fruit moth Cydia molesta, comprises the steps of: i. reacting 1-chloro-6-iodohexane with pent-1-yne in liquid ammonia in the presence of lithium amide as a catalyst; ii. reacting the product of step (i) with an alkali metal cyanide in the presence of a metal iodide as catalyst; iii. subjecting the product of step (ii) to alkaline hydrolysis; iv. reducing the product of step (iii) with sodium bis(methoxyethoxy) aluminium hydride; v. acetylating the product of step (iv); and vi. reducing the product of step (v) with bis(sec-isoamyl)borane.

    Abstract translation: 顺丁-8-十二烯-1-醇乙酸酯的改进方法,东方水果蛾Cydia molesta的性信息素包括以下步骤:i。 在氨化氨作催化剂存在下,将液体氨中的1-氯-6-碘 - 己烷与戊-1-炔反应; ii。 在金属碘化物作为催化剂的存在下使步骤(i)的产物与碱金属氰化物反应; iii。 使步骤(ii)的产物进行碱水解; iv。 用二(甲氧基乙氧基)氢化铝钠还原步骤(ⅲ)的产物; v。乙酰化步骤(iv)的产物; 和vi。 用双(仲 - 异戊基)硼烷还原步骤(v)的产物。

    2,2-Diphenyl-3,3-dimethyloxetone insecticides
    6.
    发明授权
    2,2-Diphenyl-3,3-dimethyloxetone insecticides 失效
    2,2-二苯基-3,3-二甲基酮类杀虫剂

    公开(公告)号:US3881030A

    公开(公告)日:1975-04-29

    申请号:US39050773

    申请日:1973-08-22

    Inventor: HOLAN GEORGE

    CPC classification number: C07D317/56

    Abstract: The invention provides derivatives of 2,2-diphenyl-3,3dimethyloxetane in which the phenyl groups are substituted with alkoxy, alkylthio and/or methylenedioxy groups, which have insecticidal properties and the invention also provides insecticidal compositions thereof.

    Abstract translation: 本发明提供2,2-二苯基-3,3-二甲基氧杂环丁烷的衍生物,其中苯基被烷氧基,烷硫基和/或亚甲二氧基取代,其具有杀虫性质,本发明还提供其杀虫组合物。

    Smoke detector
    9.
    发明授权
    Smoke detector 失效
    烟雾探测器

    公开(公告)号:US3874795A

    公开(公告)日:1975-04-01

    申请号:US36726073

    申请日:1973-06-05

    CPC classification number: G01N21/53 G08B17/107 G08B17/113

    Abstract: A smoke monitoring instrument having first and second chambers, each with a respective photodetector means, a light source common to both chambers and positioned to illuminate part of the interior of each chamber, means for conveying a first air sample from the space to be monitored into said part of the first chamber, means for conveying a second air sample from outside the space into said part of the second chamber, each photodetector means being arranged to receive light from the source which is scattered by its respective air sample but not to receive light directly from the source whereby the effects of suspended material in the first sample originating from outside the space to be monitored can be observed or removed from the output of the instrument.

    Abstract translation: 一种烟雾监测仪器,具有第一和第二腔室,每个腔室具有相应的光电检测器装置,两个腔室共用的光源,并定位成照亮每个腔室内部的一部分,用于将第一空气样品从待监测的空间输送到 所述第一室的所述部分,用于将第二空气样本从所述空间外部输送到所述第二室的所述部分的装置,每个光电检测器装置被布置成接收来自所述源的光,所述光被其各自的空气样品散射,但不接收光 直接来自源,从而可以从仪器的输出中观察或去除源自待监测空间外的第一个样品中的悬浮物质的影响。

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