Method of removing sulfur dioxide from combustion exhaust gas
    31.
    再颁专利
    Method of removing sulfur dioxide from combustion exhaust gas 失效
    从燃烧废气中除去二氧化硫的方法

    公开(公告)号:USRE31236E

    公开(公告)日:1983-05-10

    申请号:US136531

    申请日:1980-04-02

    IPC分类号: B01D53/50 B01D53/77 C01F11/46

    CPC分类号: B01D53/501 C01F11/464

    摘要: A method of removing sulfur dioxide from combustion exhaust gas containing sulfur dioxide by contacting the exhaust gas with an aqueous solution containing at least one organic acid salt expressed by the formulaRCOOM(wherein R represents H, CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7, and M represents an alkali metal or NH.sub.4) to efficiently dissolve sulfur dioxide contained in the gas in the form of a sulfite in the aqueous solution by reacting the sulfur dioxide with the salt. The resultant solution which dissolves the sulfite may be contacted with a calcium compound for producing calcium sulfite by reaction of the sulfite with the calcium compound thereby effectively removing the sulfur dioxide in the form of calcium sulfite from the combustion exhaust gas. Alternatively, the sulfite-dissolving aqueous solution may be contacted with oxygen or air for oxidizing the sulfite contained in the solution into a sulfate, followed by contacting the sulfate, which is now dissolved in the aqueous solution, with a calcium compound. The sulfate is satisfactorily reacted with the calcium compound to produce calcium sulfate and thus sulfur dioxide may be effectively ultimately removed in the form of calcium sulfate from the combustion exhaust gas.

    Self-powered toy animal
    35.
    发明授权
    Self-powered toy animal 失效
    自供玩具动物

    公开(公告)号:US4068401A

    公开(公告)日:1978-01-17

    申请号:US706525

    申请日:1976-07-19

    申请人: Shigeru Saitoh

    发明人: Shigeru Saitoh

    IPC分类号: A63H13/02 A63H23/10

    CPC分类号: A63H13/02 A63H23/10

    摘要: A self-powered toy comprises a relatively small toy animal and a relatively large toy animal having an openable mouth. A reel provided inside the large animal is connected to a drive and has a line connected to it that extends out the mouth of the large animal and is attached to the smaller animal. In addition the large animal, which may be constituted as a floatable fish or the like, is provided with means for propelling it through the water so that the drive unit can propel this large animal through the water and simultaneously reel in the small animal. Thus the large animal will appear to pursue and then eat the small animal as it pulls the small animal into its openable mouth.

    摘要翻译: 自动动力玩具包括相对小的玩具动物和具有可开口的较大的玩具动物。 设置在大动物内部的卷轴连接到驱动器,并且具有连接到其上的线,其延伸出大动物的口并附接到较小的动物。 此外,可以构成为可浮动鱼等的大型动物设置有用于通过水推动其的装置,使得驱动单元可以推动该大动物通过水并同时卷入小动物。 因此,大型动物似乎追求,然后吃小动物,因为它将小动物拉入其可打开的嘴。

    Apparatus for purifying crystals
    37.
    发明授权
    Apparatus for purifying crystals 失效
    晶体净化装置

    公开(公告)号:US4588562A

    公开(公告)日:1986-05-13

    申请号:US631443

    申请日:1984-07-16

    IPC分类号: B01D9/02 B01D9/00

    CPC分类号: B01D9/004

    摘要: Crystals containing a molten liquid at the bottom of a purifying tower are cooled, so that three effects i.e., washing, sweating and recrystallization are improved while maintaining a heat balance within a tower to thereby obtain highly pure crystals. The apparatus according to this invention comprises a crystal purifying tower of a transversal cross sectional configuration in which two circles are partially joined to each other and in which a stirrer having blade members spirally attached around the surface of a rotational shaft is disposed at the center for each of the circles, the purifying tower having a starting material feed means about at the middle thereof, a heating means and a product take out port at the upper portion thereof, a cooled crystal feed means, a low purity crystal component take out means and a means for extracting a portion of the crystal component at low purity out of the system at the bottom thereof, wherein the crystal component at low purity taken out by the low purity crystal component take out means is crystallized and then cooled by a means disposed outside the purifying tower for crystallizing and then cooling the crystal component at low purity, and the crystals thus crystallized and then cooled are fed by means of the cooled crystal feed means to the purifying tower.

    摘要翻译: 在净化塔底部含有熔融液体的晶体被冷却,从而提高洗涤,出汗和重结晶三个效果,同时保持塔内的热平衡,从而获得高纯度的晶体。 根据本发明的装置包括横截面构造的晶体净化塔,其中两个圆部彼此部分地接合,并且其中具有围绕旋转轴的表面螺旋地附接的叶片构件的搅拌器设置在中心处 每个圆圈,净化塔具有大约在其中间的起始原料进料装置,加热装置和在其上部的产物取出口,冷却的晶体进料装置,低纯度的晶体组分取出装置和 在底部从系统中提取低纯度的部分晶体成分的方法,其中由低纯度晶体组分取出的低纯度晶体成分取出装置结晶,然后通过设置在外部的装置冷却 用于结晶并然后以低纯度冷却结晶组分的纯化塔,然后使晶体结晶然后冷却 通过冷却的晶体进料装置进料到净化塔。