Hydroquinone derivatives and preparation thereof
    2.
    发明授权
    Hydroquinone derivatives and preparation thereof 失效
    对苯二酚衍生物及其制备方法

    公开(公告)号:US4270003A

    公开(公告)日:1981-05-26

    申请号:US62031

    申请日:1979-07-30

    CPC分类号: C07C317/18 C07C41/22

    摘要: The novel hydroquinone derivatives of the formula (I) are useful intermediates for the preparation of coenzyme Q, vitamin K and the polyprenyltrimethylquinones: ##STR1## wherein R.sup.1 is lower alkyl, lower alkoxy lower alkyl or methoxyethoxymethyl, R.sup.2 and R.sup.3 are each methyl or methoxy, or R.sup.2 and R.sup.3, taken together with the carbon atoms from which they depend, define a benzene ring, and R.sup.4 is a substituted or unsubstituted aromatic hydrocarbon. The compounds (I) are readily prepared either by reacting a Grignard reagent of the formula (II) with a halosulfone (III) in the presence of a copper compound, or by reacting a copper derivative (II') of the Grignard reagent (II) with a halo-sulfone (III), as follows: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined as above, and X is a halogen atom or a tosyl group.

    摘要翻译: 式(I)的新型氢醌衍生物是制备辅酶Q,维生素K和聚丙二酰基三甲基醌的有用的中间体:其中R 1是低级烷基,低级烷氧基低级烷基或甲氧基乙氧基甲基,R 2和R 3各自为 甲基或甲氧基,或R 2和R 3与它们相应的碳原子一起定义苯环,并且R 4是取代或未取代的芳族烃。 化合物(I)可以通过在铜化合物的存在下使式(II)的格氏试剂与卤代砜(III)反应,或者通过使格利雅试剂(II)的铜衍生物(II') )与卤代 - 砜(III)反应,如下:其中R 1,R 2,R 3和R 4如上定义,X​​为卤素原子或甲苯磺酰基。

    Titanium target for sputtering and method of manufacturing same
    7.
    发明授权
    Titanium target for sputtering and method of manufacturing same 失效
    用于溅射的钛靶及其制造方法

    公开(公告)号:US5952086A

    公开(公告)日:1999-09-14

    申请号:US737313

    申请日:1996-11-12

    摘要: A titanium target for sputtering high in film making efficiency in a contact hole. The crystallization on the target face is caused to be orientated so that the X-ray diffraction strength of the (10 -10) and/or (11 -20) vertical to the close-packed filling face may become 1.1 times or more in a case of the random orientation, and the X-ray diffraction strength of the (0002) parallel to the close-packed filling face may become 1 time or lower in a case of the random orientation. A direction of the sputter grains jumping out of the target face is controlled in a direction vertical to the target face.

    摘要翻译: PCT No.PCT / JP96 / 00610 Sec。 371日期:1996年11月12日 102(e)日期1996年11月12日PCT 1996年3月12日PCT公布。 公开号WO96 / 28583 日期1996年9月19日一种用于在接触孔中溅射高成膜效率的钛靶。 导致目标面上的结晶取向,使得(10-10)和/或(11-20)垂直于紧密堆积的填充面的X射线衍射强度可以在 在随机取向的情况下,平行于紧密堆积填充面的(0002)的X射线衍射强度可以变为1倍以下。 从目标面跳出的溅射粒子的方向在垂直于目标面的方向上被控制。

    Dust collecting method
    8.
    发明授权
    Dust collecting method 失效
    集尘方式

    公开(公告)号:US06228336B1

    公开(公告)日:2001-05-08

    申请号:US09373579

    申请日:1999-08-13

    IPC分类号: B01J800

    CPC分类号: B01D50/002 B01D53/508

    摘要: A dust collecting apparatus and method for dedusting a Ca-containing gas using a ceramics filter is provided, in which a filter differential pressure elevation rate is suppressed. A desulferizing agent 103 and a mineral 106 containing MgO are supplied via a hopper 13, 15 a valve 14 and a feeder 16 into a pressurized fluidized-bed combustion furnace 1 together with coal 101 and air 102. A combustion gas 201 is dedusted by a cyclone 2 to become a combustion gas 301, the combustion gas 301 enters a filter container 3a, 3b having a ceramics filter 31a, 31b and is further dedusted. A combustion gas 401 which is dedusted is supplied into a gas turbine 4 to generate power, and combustion gas 501 heats a waste heat recovery boiler 5 which in turn drives a steam turbine 7. The mineral 106 containing MgO is added in the combustion gas 301 which flows in the ceramics filter 31a, 31b. Thereby MgO is added to the combustion gas so that the filter differential pressure elevation rate can be suppressed. The more MgO that is supplied, the greater the effect becomes, and an operation stop due to the differential pressure elevation is eliminated.

    摘要翻译: 提供一种使用陶瓷过滤器除尘含Ca气体的集尘装置和方法,其中抑制了过滤器差压升高速率。 脱硫剂103和含有MgO的矿物106通过料斗13,15,阀14和进料器16与煤101和空气102一起供应到加压流化床燃烧炉1中。燃烧气体201通过 旋风分离器2成为燃烧气体301,燃烧气体301进入具有陶瓷过滤器31a,31b的过滤容器3a,3b,并进一步除尘。 将除尘的燃烧气体401供给燃气轮机4发电,燃烧气体501加热余热回收锅炉5,废热回收锅炉5又驱动蒸汽轮机7.含有MgO的矿物106加入燃烧气体301 其在陶瓷过滤器31a,31b中流动。 由此,将MgO添加到燃烧气体中,从而可以抑制过滤器差压提升率。 供给的MgO越多,效果越大,并且消除由于差压升高引起的操作停止。