Process for producing glass preform for optical fiber
    1.
    发明授权
    Process for producing glass preform for optical fiber 失效
    光纤用玻璃预制棒的制造方法

    公开(公告)号:US5597398A

    公开(公告)日:1997-01-28

    申请号:US260747

    申请日:1994-06-15

    IPC分类号: C03B37/014 C03B37/018

    CPC分类号: C03B37/0148 Y02P40/57

    摘要: A process for producing a porous glass preform for optical fiber by depositing fine glass particles on an outer surface of a glass material while moving the glass material, including the steps of: preheating a portion of the glass material for not less than 5 minutes to clean the portion of the glass material in an apparatus for depositing fine glass particles; and depositing fine glass particles on the portion of the glass material cleaned by the preheating, in the apparatus for depositing fine glass particles.

    摘要翻译: 一种通过在移动玻璃材料的同时在玻璃材料的外表面上沉积微细玻璃颗粒而制造光纤用多孔玻璃预制件的方法,包括以下步骤:将玻璃材料的一部分预热至少5分钟以进行清洁 用于沉积细微玻璃颗粒的装置中的玻璃材料部分; 以及在用于沉积微细玻璃颗粒的装置中,通过预热清洁的玻璃材料的部分上沉积微细玻璃颗粒。

    Process for recovery of reusable chromic acid from the waste chromic
acid solution containing impurities
    3.
    发明授权
    Process for recovery of reusable chromic acid from the waste chromic acid solution containing impurities 失效
    从含有杂质的废铬酸溶液中回收可重复使用的铬酸的方法

    公开(公告)号:US4349514A

    公开(公告)日:1982-09-14

    申请号:US66167

    申请日:1979-08-13

    摘要: A process for recovery of reusable chromic acid from waste chromic acid solution containing impurities, which process comprises a first step in which the solution containing chromic acid is introduced into the cathode compartment in an electro-dialysis process and free chromic acid or chromate ions in the above solution are transferred to the anode compartment, a second step in which H.sub.2 SO.sub.4 is added in at least equivalent amounts to the heavy metallic ion contained in the outlet solution, in which chromic acid ion concentration is reduced, in order to convert chemical species of the contained metallic ion and increase the H.sup.+ ion concentration and then chromate ions in the resultant solution are extracted into an organic phase with contact of an organic solvent (A), and a third step in which residual amounts of chromic acid ion remaining in the aqueous raffinate from the second step are extracted into an organic phase with contact of an organic solvent (B). Organic solvents A and B are regenerated by stripping the organic phase with a suitable strip reagent.

    摘要翻译: 从含有杂质的废铬酸溶液中回收可再利用的铬酸的方法,该方法包括第一步骤,其中将含有铬酸的溶液在电渗析过程中引入阴极室,并且将游离的铬酸或铬酸根离子 将上述溶液转移到阳极室,第二步骤,其中以至少等量的量加入H 2 SO 4,其中所述重金属离子包含在出口溶液中,其中铬酸离子​​浓度降低,以便将化学物质转化为 含有金属离子并增加H +离子浓度,然后将所得溶液中的铬酸根离子与有机溶剂(A)接触而萃取到有机相中,并且残留在残液中的残余量的铬酸离子的第三步骤 从有机溶剂(B)与第二步骤萃取到有机相中。 有机溶剂A和B通过用合适的剥离试剂汽提有机相来再生。

    Optical fiber
    4.
    发明授权
    Optical fiber 有权
    光纤

    公开(公告)号:US06731847B1

    公开(公告)日:2004-05-04

    申请号:US09556776

    申请日:2000-04-25

    IPC分类号: G02B602

    摘要: The present invention relates to an optical fiber having a large positive dispersion in a wavelength band of 1.55 &mgr;m in order to compensate for a negative dispersion inherent in an NZ-DSF in the wavelength band of 1.55 &mgr;m. This optical fiber comprises a depressed cladding structure constituted by a core region; an inner cladding, provided on the outer periphery of the core region, having a lower refractive index; and an outer cladding having a higher refractive index. In this optical fiber, the relative refractive index difference of the core region with respect to the outer cladding is 0.30% or more but 0.50% or less, and the relative refractive index difference of the inner cladding with respect to the outer cladding is −0.50% or more but −0.02% or less. Also, the optical fiber has a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 &mgr;m, and an effective area of 70 &mgr;m2 or more at the wavelength of 1.55 &mgr;m.

    摘要翻译: 本发明涉及一种在1.55μm波长带上具有大的正色散的光纤,以补偿NZ-DSF在1.55μm波长带内固有的负色散。 该光纤包括由芯区域构成的凹陷包层结构; 设置在芯区域的外周上的具有较低折射率的内包层; 以及具有较高折射率的外包层。 在该光纤中,芯区域相对于外包层的相对折射率差为0.30%以上且0.50%以下,内包层相对于外包层的相对折射率差为-0.50 %以上但为-0.02%以下。 此外,光纤的波长为1.55μm时的色散大于18ps / nm / km,波长1.55μm的有效面积为70m 2以上。

    Sport shoes
    6.
    发明授权
    Sport shoes 失效
    运动鞋

    公开(公告)号:US4335528A

    公开(公告)日:1982-06-22

    申请号:US120952

    申请日:1980-02-12

    申请人: Morio Watanabe

    发明人: Morio Watanabe

    摘要: A sport shoe in which the shoe sole is bonded to an insert layer during the formation of the shoe sole by injection-molding and the assembly of the shoe sole and the insert layer is secured to the shoe upper by an adhesive applied between the insert layer and the shoe upper.

    摘要翻译: 一种运动鞋,其中鞋底通过注射成型在鞋底形成期间结合到插入层,并且鞋底和插入层的组装通过施加在插入层之间的粘合剂固定到鞋上 和鞋面。

    Process for recovery of waste H.sub.2 SO.sub.4 and HCl
    7.
    发明授权
    Process for recovery of waste H.sub.2 SO.sub.4 and HCl 失效
    回收废H2SO4和HCl的方法

    公开(公告)号:US4177119A

    公开(公告)日:1979-12-04

    申请号:US936595

    申请日:1978-08-24

    摘要: This invention relates to a process for recovery of waste H.sub.2 SO.sub.4 and HCl which are used for pickling metallic materials and articles and contain a large quantities of Fe ions. Furthermore, it offers a process for the recovery of H.sub.2 SO.sub.4 and HCl from waste H.sub.2 SO.sub.4 which contains large amounts of Fe ions after removal of Ti ions by a hydrolysis process in the production of TiO.sub.2 and also for the recovery of high-purity electrolytic iron or iron hydroxide.

    摘要翻译: 本发明涉及回收用于酸洗金属材料和制品并含有大量Fe离子的废H2SO4和HCl的方法。 此外,它提供了一种从废物H2SO4中回收H2SO4和HCl的方法,其中通过在制备TiO 2中的水解过程除去Ti离子之后含有大量的Fe离子,并且还用于回收高纯度电解铁或铁 氢氧化物。

    Crystallizer
    9.
    发明授权
    Crystallizer 失效
    结晶器

    公开(公告)号:US4678646A

    公开(公告)日:1987-07-07

    申请号:US815200

    申请日:1985-12-30

    CPC分类号: B01D9/0036

    摘要: A crystallizer comprising a mixing zone of an organic solvent containing ions of a metal extracted therein and an aqueous separating solution provided at the upper part of a main crystallizer body, a lower-part opened organic solvent settling zone provided outside of the mixing zone for receiving and settling the organic solvent overflowing out of the mixing zone, a crystals developing zone having a downwardly narrowing cross section provided at the lower part of the main crystallizer body, a descending pipe extending from the lower end of the mixing zone to the lower part of the crystals developing zone, a crystals fluidizing medium inlet provided at the lower end of the crystals developing zone, a separating solution discharge pipe and a crystals discharge pipe. By applying an aqueous separating solution, in which the solubility of the metallic salt in object is small, for transferring metal ions in an organic solvent therein, it is possible to obtain the crystals of said metallic salt with no need of concentrating the separating solution by evaporation.

    摘要翻译: 一种结晶器,包括含有金属离子萃取的有机溶剂的混合区和设置在主结晶器主体上部的水分离溶液,设置在混合区外部用于接收的下部打开的有机溶剂沉降区 并将从混合区溢出的有机溶剂沉淀出来,设置在主结晶体主体下部的具有向下变窄的横截面的晶体显影区,从混合区的下端延伸到下部的下降管 晶体显影区,在晶体显影区下端设置的晶体流化介质入口,分离液排出管和晶体排出管。 通过应用其中金属盐在物体中的溶解度小的用于将金属离子转移到其中的有机溶剂中的水分离溶液,可以获得所述金属盐的晶体,而不需要将分离溶液浓缩, 蒸发。