Method and apparatus for the production of industrial lead oxide
    1.
    发明授权
    Method and apparatus for the production of industrial lead oxide 失效
    用于生产工业氧化铅的方法和设备

    公开(公告)号:US4536385A

    公开(公告)日:1985-08-20

    申请号:US467090

    申请日:1983-02-16

    IPC分类号: B01J10/00 C01G21/06 C21C7/00

    摘要: A method and an apparatus for the production of industrial lead oxide involving mixing molten lead and air in a reactor. A particularly advantageous, having a desired particle size can be obtained with a PbO content of considerably more than 99%. The lead flow is introduced at a constant and even rate and the air flow is altered very slightly in order to maintain the pre-determined reaction temperature having fluctuations of a maximum of .+-.5.degree. C.The constant and steady infeed of the lead flow is achieved by using an apparatus according to the invention. The apparatus, which is situated above the reactor, includes a supply vessel charged with molten lead from a melt container, the supply vessel having an exchangeable nozzle which is provided with a control-operated cleaning pin. The nozzle extends into a reaction space and the supply vessel is connected to the melt container via a feed line and an overflow. The nozzle can also be of a known spray nozzle type which is fed with heated compressed air via a line running through the said melt container.

    摘要翻译: 一种用于生产工业氧化铅的方法和装置,包括在反应器中混合熔融铅和空气。 可以获得具有显着超过99%的PbO含量的具有所需粒度的特别有利的。 以恒定和均匀的速率引入引导流,并且空气流被非常轻微地改变,以保持预定的反应温度具有最大+/- 5℃的波动。引线的恒定和稳定的进给 流动通过使用根据本发明的装置来实现。 位于反应器上方的装置包括从熔体容器装入熔融铅的供应容器,供应容器具有可更换的喷嘴,其具有控制操作的清洁销。 喷嘴延伸到反应空间中,供料容器通过进料管线和溢流管连接到熔体容器。 喷嘴也可以是已知的喷嘴型,其通过穿过所述熔体容器的管线被供给加热的压缩空气。

    Method and a device for manufacturing partially oxidized lead dust
    2.
    发明授权
    Method and a device for manufacturing partially oxidized lead dust 失效
    方法和制造部分氧化铅粉尘的装置

    公开(公告)号:US4412658A

    公开(公告)日:1983-11-01

    申请号:US253532

    申请日:1981-04-13

    摘要: In a process and a device for manufacturing partially oxidized lead dust from lead pieces, the natural pile of dissociated coarse and fine material formed in a rotating drum is mechanically disturbed by radially extending guide plates in the interior of a drum which plates are arranged in pairs and displaced toward each other by 180.degree. in the direction of the circumference of the drum and the individual plates of each pair of plates are spaced axially apart, by which arrangement the efficiency of the process and the product quality are greatly improved.

    摘要翻译: 在用于从铅片制造部分氧化的铅粉尘的工艺和装置中,形成在旋转鼓中的解离的粗细和细材料的天然绒头由鼓的内部的径向延伸的引导板机械地扰乱,所述导板在成对布置 并且在鼓的圆周方向上彼此相对移动180度,并且每对板的各个板轴向间隔开,通过该布置,工艺的效率和产品质量得到极大的改善。

    Method for the manufacture of a pastel-white, highly opaque micro-particle rutile pigment, the therewith obtained rutile pigment and its utilization
    3.
    发明申请
    Method for the manufacture of a pastel-white, highly opaque micro-particle rutile pigment, the therewith obtained rutile pigment and its utilization 审中-公开
    用于制造柔和白色,高度不透明的微粒金红石颜料的方法,其中得到的金红石颜料及其利用

    公开(公告)号:US20070000411A1

    公开(公告)日:2007-01-04

    申请号:US11361024

    申请日:2006-02-23

    IPC分类号: C09C1/36

    摘要: Described is a method for the manufacture of a pastel-white, highly opaque, micro-particle rutile pigment from a crude rutile, synrutile or from a slag-like rutile-type precursor characteristic for traditional titanium dioxide production from processing ilmenite into titanium dioxide. This method distinguishes itself in that the starter material in form of the crude rutile, synrutile or the slag-like rutile-type precursor is ground down in several stages in high efficiency mills without leaving any significant metallic fines, to a particle size of approximately 200 to 600 nm, whereby initially a dry pre-grinding step is performed and thereafter with high recorded grinding output a wet grinding step is performed in a final grinding phase. The ground-down product is dried and the obtained rutile pigment is calcinated in finely distributed form at temperatures between 790 and 1050° C. The invention thus also concerns-a pastel-white, micro-particle and highly opaque rutile pigment attainable according to this method with reduced grinding-stable photo-activity and a grain size distribution of particle diameters ranging between 150 and 100 nm and with mono- or oligo-modal frequency distribution with a principal maximum of the distribution curve between 200 and 600 nm. It presents a particularly fine brightness, purity of color and covering capability with concurrently to a minimum reduced photo-activity and it is suitable for being beneficially worked into polymer materials, construction materials, ceramic lamination materials, papers and pressed laminates, varnishes, paints and print colors.

    摘要翻译: 描述了从粗制金红石,合成物或者类似矿渣的金红石型前体制备柔和白色高度不透明的微粒金红石颜料的方法,其特征在于用于从钛铁矿转化成二氧化钛的传统二氧化钛生产。 该方法的区别在于,将粗金红石,合金或渣状金红石型前体的起始材料在高效率磨机中分几阶段研磨,而不会留下任何显着的金属细粒,至约200 至600nm,由此最初进行干燥预研磨步骤,此后在高记录研磨输出下,在最终研磨阶段进行湿磨阶段。 将下降的产物干燥,并将得到的金红石颜料在790和1050℃之间的温度下以细分散的形式进行煅烧。因此,本发明还涉及根据这种可获得的柔和白色,微粒和高度不透明的金红石颜料 具有降低的研磨稳定光活性和150至100nm范围内的粒径的晶粒尺寸分布的方法,具有在200和600nm之间的分布曲线的主要最大值的单模或寡模态频率分布。 它具有特别优异的亮度,颜色和覆盖能力的纯度,同时具有最小的光活性降低,适用于有益地加工成聚合物材料,建筑材料,陶瓷层压材料,纸和压制层压材料,清漆,油漆和 打印颜色

    Method for finish burning of litharge
    4.
    发明授权
    Method for finish burning of litharge 失效
    锂电池完成燃烧方法

    公开(公告)号:US4975268A

    公开(公告)日:1990-12-04

    申请号:US399940

    申请日:1989-08-29

    申请人: Reinhard Marx

    发明人: Reinhard Marx

    IPC分类号: C01G21/06

    CPC分类号: C01G21/06 C01P2006/80

    摘要: The method according to the invention for producing industrial litharge of more than 99.98, preferably more than 99.99, % by weight oxide content, wherein liquid lead in heated form is introduced into a reactor in an amount which is constant and uniform in time average, the reaction temperature is set to a temperature in the range from more than 500.degree. C. to 680.degree. C. and the crude oxide having an oxidation degree of about 99.7% thus obtained is further oxidized, is characterized in that in the first stage in the production of the crude oxide with an oxidation degree of about 99.7% the product discharged with the reaction air is filtered out of the latter and returned to the reactor and, when enough oxide has collected in the reactor, the lead supply and the filter oxide return are interrupted and only air is then blown in, and the charge oxidized to a residual content of metallic lead of at the most 0.01% is not completely discharged but only to an extent of about 50%.

    摘要翻译: 根据本发明的用于生产超过99.98,优选大于99.99重量%的氧化物含量的工业硫化物的方法,其中加热形式的液体铅以时间平均值恒定和均匀的量引入反应器, 反应温度设定在大于500℃至680℃的温度范围内,由此获得的具有约99.7%氧化度的粗氧化物被进一步氧化,其特征在于在第一阶段 产生氧化度约99.7%的粗氧化物,用反应空气排出的产物被过滤掉并返回到反应器中,当在反应器中收集足够的氧化物时,引线供应和过滤氧化物返回 被中断,然后仅吹入空气,并且被氧化至最多0.01%的金属铅残留量的电荷未完全排出,而仅达到约50%的程度。

    Process for the accelerated production of red lead oxide
    5.
    发明授权
    Process for the accelerated production of red lead oxide 失效
    红氧化铅加速生产工艺

    公开(公告)号:US5482689A

    公开(公告)日:1996-01-09

    申请号:US655450

    申请日:1991-03-05

    申请人: Reinhard Marx

    发明人: Reinhard Marx

    IPC分类号: B01J8/38 C01G21/10 C01G21/02

    CPC分类号: B01J8/382 C01G21/10

    摘要: This invention relates to a process for the accelerated production of red lead oxide, the lead oxide to be oxidized being kept in suspension like a fluidized bed, particularly being kept in suspension like a fluidized bed in a stirrer reactor by a stirrer, only part of the finished product being drawn off from the fully oxidized fluidized bed and being replaced by new lead oxide to be oxidized, as well as an apparatus therefor.

    摘要翻译: PCT No.PCT / EP90 / 01094 Sec。 371日期1991年3月5日 102(e)1991年3月5日PCT PCT 1990年7月6日PCT公布。 出版物WO91 / 00848 日本1991年1月24日。本发明涉及加速生产红色氧化铅的方法,待氧化的氧化铅像流化床一样保持在悬浮液中,特别是在搅拌反应器中保持悬浮液如流化床 通过搅拌器,只有部分成品从完全氧化的流化床中排出并被待氧化的新的氧化铅替代,以及其装置。